IP Library › Granted Patent US 10,979,982
Granted Patent B2
US 10,979,982 · App. 16/895,879 · Granted Apr 13, 2021

Power control for channel state information

Inventors: Hyoungsuk Jeon (Centreville, VA); Esmael Hejazi Dinan (McLean, VA); Alireza Babaei (Fairfax, VA); Hua Zhou (Herndon, VA)
Assignee: Comcast Cable Communications, LLC
H04W52/241H04W24/10H04W52/146H04W52/325H04W76/11H04W76/32
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Quick Facts
Patent No.
US 10,979,982
App. No.
16/895,879
Granted
Apr 13, 2021
Kind
B2
Abstract

Systems, apparatuses, and methods are described for wireless communications. A base station may send, to a wireless device, one or more radio resource control messages comprising power control parameters and/or other wireless resources. The base station may send, to the wireless device, activation or deactivation of channel state information reporting. The wireless device may adjust, based on one or more of the activation or deactivation, at least one value associated with a transmission power of an uplink channel transmission.

Claims (291)

1. A method comprising:

receiving, by a wireless device, a control message indicating an activation of semi-persistent channel state information (SP CSI) reporting;

determining a transmission power for a transmission of at least one SP CSI report, wherein the transmission power is based on:

at least one uplink power control parameter; and

at least one value associated with the activation of the SP CSI reporting; and

transmitting, via an uplink channel and based on the transmission power, the at least one SP CSI report.

2. The method of claim 1 , further comprising:

based on the activation of the SP CSI reporting, determining the at least one value.

3. The method of claim 2 , wherein the determining the at least one value comprises at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

4. The method of claim 1 , further comprising:

changing the at least one value to a second value; and

determining a second transmission power for an uplink data transmission, wherein the second transmission power is based on:

at least one second uplink power control parameter for the uplink data transmission; and

the second value.

5. The method of claim 1 , further comprising:

changing the at least one value to a second value; and

determining a second transmission power for a second transmission of at least one second SP CSI report, wherein the second transmission power is based on:

the at least one uplink power control parameter; and

the second value.

6. The method of claim 1 , further comprising:

changing the at least one value to a second value;

receiving a second control message indicating a deactivation of SP CSI reporting; and

changing, based on receiving the second control message, the second value to a different value.

7. The method of claim 1 , further comprising:

scheduling, after receiving a second control message indicating a deactivation of SP CSI reporting, a second transmission of uplink information;

determining, based on the at least one value being changed to a different value, a second transmission power for the second transmission; and

transmitting, based on the second transmission power, the uplink information.

8. The method of claim 1 , further comprising:

receiving a radio network temporary identifier associated with SP CSI reporting,

wherein the activation is based on the radio network temporary identifier and downlink control information of the control message.

9. The method of claim 8 , further comprising validating, based on a plurality of fields in the downlink control information, the activation.

10. The method of claim 1 , further comprising receiving, from a base station, at least one message comprising the at least one uplink power control parameter,

wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

11. A method comprising:

receiving, by a wireless device from a base station, at least one control message comprising at least one of:

a first indication associated with an activation of semi-persistent channel state information (SP CSI) reporting; or

a second indication associated with a deactivation of SP CSI reporting;

determining, based on at least one of the first indication or the second indication, at least one value associated with at least one of: the activation or the deactivation;

determining, based on the at least one value, a transmission power for a transmission of uplink information; and

transmitting, via an uplink channel and based on the transmission power, the uplink information.

12. The method of claim 11 , wherein the uplink information comprises at least one of:

at least one SP CSI report; or

uplink shared channel data.

13. The method of claim 11 , wherein the at least one control message comprises a first field indicating a logical channel identifier that indicates whether the control message is used to activate SP CSI reporting or deactivate SP CSI reporting, and

wherein the at least one control message comprises a second field indicating whether the at least one control message indicates the activation of SP CSI reporting.

14. The method of claim 11 , further comprising:

receiving a radio network temporary identifier associated with SP CSI reporting, and

wherein the activation of SP CSI reporting or the deactivation of SP CSI reporting is based on the radio network temporary identifier and downlink control information of the at least one control message.

15. The method of claim 11 , wherein determining the at least one value comprises at least one of:

setting, based on the first indication, the at least one value to a first value, or

setting, based on the second indication, the at least one value to a second value.

16. The method of claim 11 , wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

17. The method of claim 11 , wherein the determining the at least one value comprises at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

18. 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 control message indicating an activation of semi-persistent channel state information (SP CSI) reporting;

determine a transmission power for a transmission of at least one SP CSI report, wherein the transmission power is based on:

at least one uplink power control parameter; and

at least one value associated with the activation of the SP CSI reporting; and

transmit, via an uplink channel and based on the transmission power, the at least one SP CSI report.

19. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

based on the activation of the SP CSI reporting, determine the at least one value.

20. The wireless device of claim 19 , wherein the instructions, when executed by the one or more processors, cause the wireless device to determine the at least one value by at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

21. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

change the at least one value to a second value; and

determine a second transmission power for an uplink data transmission, wherein the second transmission power is based on:

at least one second uplink power control parameter for the uplink data transmission; and

the second value.

22. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

change the at least one value to a second value; and

determine a second transmission power for a second transmission of at least one second SP CSI report, wherein the second transmission power is based on:

the at least one uplink power control parameter; and

the second value.

23. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

change the at least one value to a second value;

receive a second control message indicating a deactivation of SP CSI reporting; and

change, based on receiving the second control message, the second value to a different value.

24. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

schedule, after receiving a second control message indicating a deactivation of SP CSI reporting, a second transmission of uplink information;

determine, based on the at least one value being changed to a different value, a second transmission power for the second transmission; and

transmit, based on the second transmission power, the uplink information.

25. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

receive a radio network temporary identifier associated with SP CSI reporting,

wherein the activation is based on the radio network temporary identifier and downlink control information of the control message.

26. The wireless device of claim 25 , wherein the instructions, when executed by the one or more processors, cause the wireless device to validate, based on a plurality of fields in the downlink control information, the activation.

27. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to receive, from a base station, at least one message comprising the at least one uplink power control parameter,

wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

28. 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, from a base station, at least one control message comprising at least one of:

a first indication associated with an activation of semi-persistent channel state information (SP CSI) reporting; or

a second indication associated with a deactivation of SP CSI reporting;

determine, based on at least one of the first indication or the second indication, at least one value associated with at least one of: the activation or the deactivation;

determine, based on the at least one value, a transmission power for a transmission of uplink information; and

transmit, via an uplink channel and based on the transmission power, the uplink information.

29. The wireless device of claim 28 , wherein the uplink information comprises at least one of:

at least one SP CSI report; or

uplink shared channel data.

30. The wireless device of claim 28 , wherein the at least one control message comprises a first field indicating a logical channel identifier that indicates whether the control message is used to activate SP CSI reporting or deactivate SP CSI reporting, and

wherein the at least one control message comprises a second field indicating whether the at least one control message indicates the activation of SP CSI reporting.

31. The wireless device of claim 28 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

receive a radio network temporary identifier associated with SP CSI reporting, and

wherein the activation of SP CSI reporting or the deactivation of SP CSI reporting is based on the radio network temporary identifier and downlink control information of the at least one control message.

32. The wireless device of claim 28 , wherein the instructions, when executed by the one or more processors, cause the wireless device to determine the at least one value by performing at least one of:

setting, based on the first indication, the at least one value to a first value, or

setting, based on the second indication, the at least one value to a second value.

33. The wireless device of claim 28 , wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

34. The wireless device of claim 28 , wherein the instructions, when executed by the one or more processors, cause the wireless device to determine the at least one value by at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

35. A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:

receive a control message indicating an activation of semi-persistent channel state information (SP CSI) reporting;

determine a transmission power for a transmission of at least one SP CSI report, wherein the transmission power is based on:

at least one uplink power control parameter; and

at least one value associated with the activation of the SP CSI reporting; and

transmit, via an uplink channel and based on the transmission power, the at least one SP CSI report.

36. The non-transitory computer-readable medium of claim 35 , wherein the instructions, when executed, further configure the wireless device to:

based on the activation of the SP CSI reporting, determine the at least one value.

37. The non-transitory computer-readable medium of claim 36 , wherein the instructions, when executed, further configure the wireless device to determine the at least one value by at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

38. The non-transitory computer-readable medium of claim 35 , wherein the instructions, when executed, further configure the wireless device to:

change the at least one value to a second value; and

determine a second transmission power for an uplink data transmission, wherein the second transmission power is based on:

at least one second uplink power control parameter for the uplink data transmission; and

the second value.

39. The non-transitory computer-readable medium of claim 35 , wherein the instructions, when executed, further configure the wireless device to:

change the at least one value to a second value; and

determine a second transmission power for a second transmission of at least one second SP CSI report, wherein the second transmission power is based on:

the at least one uplink power control parameter; and

the second value.

40. The non-transitory computer-readable medium of claim 35 , wherein the instructions, when executed, further configure the wireless device to:

change the at least one value to a second value;

receive a second control message indicating a deactivation of SP CSI reporting; and

change, based on receiving the second control message, the second value to a different value.

41. The non-transitory computer-readable medium of claim 35 , wherein the instructions, when executed, further configure the wireless device to:

schedule, after receiving a second control message indicating a deactivation of SP CSI reporting, a second transmission of uplink information;

determine, based on the at least one value being changed to a different value, a second transmission power for the second transmission; and

transmit, based on the second transmission power, the uplink information.

42. The non-transitory computer-readable medium of claim 35 , wherein the instructions, when executed, further configure the wireless device to receive a radio network temporary identifier associated with SP CSI reporting, and

wherein the activation is based on the radio network temporary identifier and downlink control information of the control message.

43. The non-transitory computer-readable medium of claim 42 , wherein the instructions, when executed, further configure the wireless device to validate, based on a plurality of fields in the downlink control information, the activation.

44. The non-transitory computer-readable medium of claim 35 , wherein the instructions, when executed, further configure the wireless device to receive, from a base station, at least one message comprising the at least one uplink power control parameter, and

wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

45. A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:

receive, from a base station, at least one control message comprising at least one of:

a first indication associated with an activation of semi-persistent channel state information (SP CSI) reporting; or

a second indication associated with a deactivation of SP CSI reporting;

determine, based on at least one of the first indication or the second indication, at least one value associated with at least one of: the activation or the deactivation;

determine, based on the at least one value, a transmission power for a transmission of uplink information; and

transmit, via an uplink channel and based on the transmission power, the uplink information.

46. The non-transitory computer-readable medium of claim 45 , wherein the uplink information comprises at least one of:

at least one SP CSI report; or

uplink shared channel data.

47. The non-transitory computer-readable medium of claim 45 , wherein the at least one control message comprises a first field indicating a logical channel identifier that indicates whether the control message is used to activate SP CSI reporting or deactivate SP CSI reporting, and

wherein the at least one control message comprises a second field indicating whether the at least one control message indicates the activation of SP CSI reporting.

48. The non-transitory computer-readable medium of claim 45 , wherein the instructions, when executed, further configure the wireless device to receive a radio network temporary identifier associated with SP CSI reporting, and

wherein the activation of SP CSI reporting or the deactivation of SP CSI reporting is based on the radio network temporary identifier and downlink control information of the at least one control message.

49. The non-transitory computer-readable medium of claim 45 , wherein the instructions, when executed, further configure the wireless device to determine the at least one value by performing at least one of:

setting, based on the first indication, the at least one value to a first value, or

setting, based on the second indication, the at least one value to a second value.

50. The non-transitory computer-readable medium of claim 45 , wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

51. The non-transitory computer-readable medium of claim 45 , wherein the instructions, when executed, further configure the wireless device to determine the at least one value by at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

52. A system comprising:

a base station; and

a wireless device;

wherein the base station is configured to:

transmit a control message indicating an activation of semi-persistent channel state information (SP CSI) reporting; and

wherein the wireless device is configured to:

determine a transmission power for a transmission of at least one SP CSI report, wherein the transmission power is based on:

at least one uplink power control parameter; and

at least one value associated with the activation of the SP CSI reporting; and

transmit, via an uplink channel and based on the transmission power, the at least one SP CSI report.

53. The system of claim 52 , wherein the wireless device is further configured to:

based on the activation of the SP CSI reporting, determine the at least one value.

54. The system of claim 53 , wherein the wireless device is further configured to determine the at least one value by at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

55. The system of claim 52 , wherein the wireless device is further configured to:

change the at least one value to a second value; and

determine a second transmission power for an uplink data transmission, wherein the second transmission power is based on:

at least one second uplink power control parameter for the uplink data transmission; and

the second value.

56. The system of claim 52 , wherein the wireless device is further configured to:

change the at least one value to a second value; and

determine a second transmission power for a second transmission of at least one second SP CSI report, wherein the second transmission power is based on:

the at least one uplink power control parameter; and

the second value.

57. The system of claim 52 , wherein the base station is further configured to transmit a second control message indicating a deactivation of SP CSI reporting; and

wherein the wireless device is further configured to:

change the at least one value to a second value; and

change, based on receiving the second control message, the second value to a different value.

58. The system of claim 52 , wherein the wireless device is further configured to:

schedule, after receiving a second control message indicating a deactivation of SP CSI reporting, a second transmission of uplink information;

determine, based on the at least one value being changed to a different value, a second transmission power for the second transmission; and

transmit, based on the second transmission power, the uplink information.

59. The system of claim 52 , wherein the base station is further configured to transmit a radio network temporary identifier associated with SP CSI reporting, and

wherein the activation is based on the radio network temporary identifier and downlink control information of the control message.

60. The system of claim 59 , wherein the wireless device is further configured to validate, based on a plurality of fields in the downlink control information, the activation.

61. The system of claim 52 , wherein the base station is further configured to transmit at least one message comprising the at least one uplink power control parameter, and

wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

62. A system comprising:

a base station; and

a wireless device;

wherein the base station is configured to:

transmit at least one control message comprising at least one of:

a first indication associated with an activation of semi-persistent channel state information (SP CSI) reporting; or

a second indication associated with a deactivation of SP CSI reporting; and

wherein the wireless device is configured to:

determine, based on at least one of the first indication or the second indication, at least one value associated with at least one of: the activation or the deactivation;

determine, based on the at least one value, a transmission power for a transmission of uplink information; and

transmit, via an uplink channel and based on the transmission power, the uplink information.

63. The system of claim 62 , wherein the uplink information comprises at least one of:

at least one SP CSI report; or

uplink shared channel data.

64. The system of claim 62 , wherein the at least one control message comprises a first field indicating a logical channel identifier that indicates whether the control message is used to activate SP CSI reporting or deactivate SP CSI reporting, and

wherein the at least one control message comprises a second field indicating whether the at least one control message indicates the activation of SP CSI reporting.

65. The system of claim 62 , wherein the base station is further configured to transmit a radio network temporary identifier associated with SP CSI reporting, and

wherein the activation of SP CSI reporting or the deactivation of SP CSI reporting is based on the radio network temporary identifier and downlink control information of the at least one control message.

66. The system of claim 62 , wherein the wireless device is further configured to determine the at least one value by performing at least one of:

setting, based on the first indication, the at least one value to a first value, or setting, based on the second indication, the at least one value to a second value.

67. The system of claim 62 , wherein the at least one value comprises at least one of:

a correction value;

an accumulated value; or

a value associated with accumulation of a transmit power control (TPC) command.

68. The system of claim 62 , wherein the wireless device is further configured to determine the at least one value by at least one of:

changing at least one previous value to the at least one value;

setting the at least one value;

initializing at least one previous value to the at least one value;

resetting at least one previous value to the at least one value;

scaling down at least one previous value to the at least one value; or

scaling up at least one previous value to the at least one value.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2021
From: JEON, HYOUNGSUK; DINAN, ESMAEL; BABAEI, ALIREZA; ZHOU, HUA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 055132/0112 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2021
From: JEON, HYOUNGSUK; DINAN, ESMAEL; BABAEI, ALIREZA; ZHOU, HUA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 055132/0126 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2021
From: JEON, HYOUNGSUK; DINAN, ESMAEL; BABAEI, ALIREZA; ZHOU, HUA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 055132/0150 →
Continuity (4)
Continuation 16244917 · Jan 10, 2019
Provisional Application 62616189 · Jan 11, 2018
Provisional Application 62615909 · Jan 10, 2018
Related Publication 20200305090A1 · Sep 24, 2020