IP Library › Granted Patent US 11,388,679
Granted Patent B2
US 11,388,679 · App. 17/228,404 · Granted Jul 12, 2022

Power control for channel state information

Inventors: Hyoungsuk Jeon (Centreville, VA); Esmael 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 11,388,679
App. No.
17/228,404
Granted
Jul 12, 2022
Kind
B2
Abstract

Channel state information (CSI) reporting may be used for wireless communications. CSI reporting may be activated or deactivated. At least one value associated with activation or deactivation of CSI reporting may be used to determine a transmission power for an uplink transmission.

Claims (340)

1. A method comprising:

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

determining a transmission power for a transmission of at least one 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 CSI reporting; and

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

2. The method of claim 1 , further comprising:

based on the activation of CSI reporting, changing a first value to a second value for a second uplink power control parameter associated with the transmission power,

wherein the at least one value comprises the second value.

3. The method of claim 1 , further comprising:

after the transmitting the at least one CSI report, changing the at least one value to a different 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 different value.

4. The method of claim 1 , further comprising:

after the transmitting the at least one CSI report, changing the at least one value to a different value; and

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

the at least one uplink power control parameter; and

the different value.

5. The method of claim 1 , further comprising:

after the transmitting the at least one CSI report, changing the at least one value to a second value;

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

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

6. The method of claim 1 , further comprising:

scheduling, after receiving a second control message indicating a deactivation of 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.

7. The method of claim 1 , further comprising:

receiving a radio network temporary identifier associated with CSI reporting,

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

8. 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.

9. The method of claim 1 , further comprising determining the at least one value by performing at least one of:

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

setting the at least one value;

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

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

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

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

10. The method of claim 1 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

11. A method comprising:

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

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

a second indication associated with a deactivation of 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 of CSI reporting or the deactivation of CSI reporting;

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 determining the at least one value comprises:

based on the at least one of the first indication or the second indication, changing a first value to a second value for an uplink power control parameter associated with the transmission power, and

wherein the at least one value comprises the second value.

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

at least one CSI report; or

uplink shared channel data.

14. 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 CSI reporting or deactivate 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 CSI reporting.

15. The method of claim 11 , further comprising:

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

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

16. 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 the first value or to a second value.

17. 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.

18. 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 the at least one previous value to the at least one value;

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

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

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

19. The method of claim 11 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

20. 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 channel state information (CSI) reporting;

determine a transmission power for a transmission of at least one 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 CSI reporting; and

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

21. The wireless device of claim 20 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

based on the activation of CSI reporting, change a first value to a second value for a second uplink power control parameter associated with the transmission power,

wherein the at least one value comprises the second value.

22. The wireless device of claim 20 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

after transmitting the at least one CSI report, change the at least one value to a different 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 different value.

23. The wireless device of claim 20 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

after transmitting the at least one CSI report, change the at least one value to a different value; and

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

the at least one uplink power control parameter; and

the different value.

24. The wireless device of claim 20 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

after transmitting the at least one CSI report, change the at least one value to a second value;

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

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

25. The wireless device of claim 20 , 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 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.

26. The wireless device of claim 20 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

receive a radio network temporary identifier associated with CSI reporting,

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

27. The wireless device of claim 20 , 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. The wireless device of claim 20 , 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:

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

setting the at least one value;

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

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

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

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

29. The wireless device of claim 20 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

30. 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 at least one control message comprising at least one of:

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

a second indication associated with a deactivation of 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 of CSI reporting or the deactivation of CSI reporting;

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.

31. The wireless device of claim 30 , wherein the instructions, when executed by the one or more processors, cause the wireless device to determine the at least one value by:

based on the at least one of the first indication or the second indication, changing a first value to a second value for an uplink power control parameter associated with the transmission power, wherein the at least one value comprises the second value.

32. The wireless device of claim 30 , wherein the uplink information comprises at least one of:

at least one CSI report; or

uplink shared channel data.

33. The wireless device of claim 30 , 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 CSI reporting or deactivate 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 CSI reporting.

34. The wireless device of claim 30 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

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

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

35. The wireless device of claim 30 , 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 the first value or to a second value.

36. The wireless device of claim 30 , 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.

37. The wireless device of claim 30 , 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:

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

setting the at least one value;

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

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

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

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

38. The wireless device of claim 30 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

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

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

determine a transmission power for a transmission of at least one 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 CSI reporting; and

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

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

based on the activation of CSI reporting, change a first value to a second value for a second uplink power control parameter associated with the transmission power,

wherein the at least one value comprises the second value.

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

after transmitting the at least one CSI report, change the at least one value to a different 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 different value.

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

after transmitting the at least one CSI report, change the at least one value to a different value; and

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

the at least one uplink power control parameter; and

the different value.

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

after transmitting the at least one CSI report, change the at least one value to a second value;

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

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

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

schedule, after receiving a second control message indicating a deactivation of 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.

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

receive a radio network temporary identifier associated with CSI reporting,

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

46. The non-transitory computer-readable medium of claim 39 , 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,

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.

47. The non-transitory computer-readable medium of claim 39 , wherein the instructions, when executed, further configure the wireless device to determine the at least one value by performing at least one of:

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

setting the at least one value;

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

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

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

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

48. The non-transitory computer-readable medium of claim 39 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

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

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

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

a second indication associated with a deactivation of 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 of CSI reporting or the deactivation of CSI reporting;

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.

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

based on the at least one of the first indication or the second indication, changing a first value to a second value for an uplink power control parameter associated with the transmission power, wherein the at least one value comprises the second value.

51. The non-transitory computer-readable medium of claim 49 , wherein the uplink information comprises at least one of:

at least one CSI report; or

uplink shared channel data.

52. The non-transitory computer-readable medium of claim 49 , 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 CSI reporting or deactivate 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 CSI reporting.

53. The non-transitory computer-readable medium of claim 49 , wherein the instructions, when executed, further configure the wireless device to:

receive a radio network temporary identifier associated with CSI reporting,

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

54. The non-transitory computer-readable medium of claim 49 , 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 the first value or to a second value.

55. The non-transitory computer-readable medium of claim 49 , 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.

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

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

setting the at least one value;

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

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

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

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

57. The non-transitory computer-readable medium of claim 49 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

58. 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 channel state information (CSI) reporting; and

wherein the wireless device is configured to:

determine a transmission power for a transmission of at least one 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 CSI reporting; and

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

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

based on the activation of CSI reporting, change a first value to a second value for a second uplink power control parameter associated with the transmission power,

wherein the at least one value comprises the second value.

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

after transmitting the at least one CSI report, change the at least one value to a different 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 different value.

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

after transmitting the at least one CSI report, change the at least one value to a different value; and

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

the at least one uplink power control parameter; and

the different value.

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

after transmitting the at least one CSI report, change the at least one value to a second value;

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

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

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

schedule, after receiving a second control message indicating a deactivation of 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.

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

receive a radio network temporary identifier associated with CSI reporting,

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

65. The system of claim 58 , wherein the wireless device is further configured 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.

66. The system of claim 58 , wherein the wireless device is further configured to determine the at least one value by performing at least one of:

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

setting the at least one value;

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

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

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

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

67. The system of claim 58 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

68. 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 channel state information (CSI) reporting; or

a second indication associated with a deactivation of CSI reporting;

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 of CSI reporting or the deactivation of CSI reporting;

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.

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

based on the at least one of the first indication or the second indication, changing a first value to a second value for an uplink power control parameter associated with the transmission power, wherein the at least one value comprises the second value.

70. The system of claim 68 , wherein the uplink information comprises at least one of:

at least one CSI report; or

uplink shared channel data.

71. The system of claim 68 , 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 CSI reporting or deactivate 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 CSI reporting.

72. The system of claim 68 , wherein the wireless device is further configured to:

receive a radio network temporary identifier associated with CSI reporting,

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

73. The system of claim 68 , 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 the first value or to a second value.

74. The system of claim 68 , 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.

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

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

setting the at least one value;

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

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

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

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

76. The system of claim 68 , wherein the CSI reporting comprises at least one of:

periodic CSI reporting;

semi-persistent (SP) CSI reporting; or

aperiodic CSI reporting.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2022
From: JEON, HYOUNGSUK; DINAN, ESMAEL; BABAEI, ALIREZA; ZHOU, HUA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 059964/0378 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2022
From: JEON, HYOUNGSUK; DINAN, ESMAEL; BABAEI, ALIREZA; ZHOU, HUA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 059964/0382 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2022
From: JEON, HYOUNGSUK; DINAN, ESMAEL; BABAEI, ALIREZA; ZHOU, HUA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 059964/0402 →
Continuity (5)
Continuation 16895879 · Jun 8, 2020
Continuation 16244917 · Jan 10, 2019
Provisional Application 62616189 · Jan 11, 2018
Provisional Application 62615909 · Jan 10, 2018
Related Publication 20210235388A1 · Jul 29, 2021