HANDLING SIGNAL QUALITY MEASUREMENTS IN A WIRELESS COMMUNICATION NETWORK

• US 20160135071A1
• Filed: 01/19/2016
• Published: 05/12/2016
• Est. Priority Date: 11/02/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Alexander Alexandrovich Maltsev, Alexei V. Davydov, Gregory Vladimirovich Morozov, Ilya Alexandrovich Bolotin, Vadim Sergeyevich Sergeyev
• Inventors: Davydov, Alexei Vladimirovich, Morozov, Gregory Vladimirovich, Maltsev, Alexander Alexandrovich, Bolotin, Ilya Alexandrovich, Sergeyev, Vadim Sergeyevich
• Granted Patent: US 10,064,079 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 52/143 Downlink power control
• CPC Class Codes: H04W 52/241 taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
• CPC Class Codes: H04W 52/248 where transmission power control commands are generated based on a path parameter
• CPC Class Codes: H04W 52/26 using transmission rate or quality of service QoS [Quality of Service]
• CPC Class Codes: H04W 52/325 Power control of control or pilot channels
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

Embodiments of the present disclosure describe techniques and configurations for handling signal quality measurements by a wireless device in a wireless network environment, particularly in a coordinated transmission environment. An apparatus may include computer-readable media having instructions and one or more processors coupled with the media and configured to execute the instructions to generate a power parameter corresponding to a power adjustment associated with a reference signal, provide the reference signal generated based in part on the generated power parameter to a wireless device, and provide the power parameter to transmission points operating in the coordinated transmission environment. Each of the transmission points may be configured to communicate the power parameter to the wireless device, and the wireless device may be configured to determine, based at least in part on the power parameter, a power characteristics associated with a channel in which the reference signal is provided.

Claims

1-28. -28. (canceled)

29. An apparatus comprising:

one or more computer-readable media comprising instructions; and

one or more processors coupled with the one or more computer-readable media and configured to execute the instructions to;

generate a power parameter corresponding to a power value adjustment associated with a reference signal to be provided to one wireless device operating on a wireless communication network;

provide the reference signal generated based at least in part on the generated power parameter to the at least one wireless device; and

provide the generated power parameter to one or more transmission points,

wherein at least one of the one or more transmission points is configured to communicate the power parameter to the at least one wireless device, and wherein the at least one wireless device is configured to determine, based at least in part on the power parameter, a power characteristics associated with a channel in which the reference signal is provided.

30. The apparatus of claim 29, wherein the one or more processors are further configured to execute the instructions to determine the power value adjustment that enables the at least one wireless device to calculate the power characteristics, the power value adjustment including one of boosting or de-boosting a power level of the reference signal, or leaving the power level of the reference signal unchanged.

31. The apparatus of claim 30, wherein the one or more processors are further configured to execute the instructions to determine the power value adjustment based at least in part on a channel quality indication (CQI) report received from the at least one wireless device.

32. The apparatus of claim 29, wherein the reference signal is a channel state information signal (CSI-RS), wherein the power characteristics is a Reference Signal Received Power (RSRP), and wherein the power parameter is a scaling parameter applied to a calculation of the RSRP using an RSRP calculation function.

33. The apparatus of claim 29, wherein the power parameter comprises a value within a range from a first predetermined value to a second predetermined value.

34. The apparatus of claim 29, wherein the power parameter is provided via a Radio Resource Control (RRC) protocol.

35. The apparatus of claim 29, wherein the channel in which the reference signal is provided includes a downlink transmission channel.

36. The apparatus of claim 29, wherein the power parameter is included in a plurality of parameters associated with the reference signal, the plurality of parameters including at least one of antenna ports count, resource configuration, or subframe configuration.

37. The apparatus of claim 29, wherein the apparatus comprises one of a subset of transmission points in a Coordinated Multipoint Transmission (CoMP) set or the apparatus comprises a server associated with a wireless communication network and operating in a Coordinated Multipoint Transmission (CoMP) set.

38. The apparatus of claim 29, wherein the one or more processors are further configured to execute the instructions to transmit the reference signal to other wireless devices, wherein the at least one wireless device is configured to receive the reference signal and determine, based at least in part on the power parameter and the reference signal, a power characteristics associated with a channel in which the reference signal is provided.

39. An apparatus comprising:

one or more computer-readable media comprising instructions; and

one or more processors coupled with the one or more computer-readable media and configured to execute the instructions to;

receive a channel state information reference signal (CSI-RS);

receive a power parameter associated with the CSI-RS, the power parameter indicating a power value adjustment associated with the received CSI-RS; and

determine, based at least in part on the power parameter and the CSI-RS, a power characteristics associated with a channel in which the CSI-RS is provided.

40. The apparatus of claim 39, wherein the power characteristics is a Reference Signal Received Power (RSRP), and wherein the one or more processors that are configured to execute the instructions to determine the power characteristics are further configured to apply the power parameter to a calculation of the RSRP using an RSRP calculation function.

41. The apparatus of claim 39, wherein the one or more processors that are configured to receive the CSI-RS are further configured to receive the CSI-RS from one of a plurality of transmission points in a Coordinated Multipoint Transmission (CoMP) set.

42. The apparatus of claim 39, wherein the one or more processors that are configured to receive the power parameter associated with the CSI-RS are further configured to execute the instructions to receive a plurality of parameters associated with the CSI-RS, the plurality of parameters including at least one of antenna ports count, resource configuration, or subframe configuration, wherein the power parameter is included in the plurality of parameters, wherein the plurality of parameters is provided via a Radio Resource Control (RRC) protocol.

43. The apparatus of claim 40, wherein the RSRP calculation function includes a parameter estimated on the channel using an antenna port of CSI-RS scaled with the power parameter.

44. At least one computing device-readable storage medium comprising instructions stored thereon wherein the instructions, in response to execution on a computing device, cause the computing device to:

generate a power parameter corresponding to a power value adjustment associated with a reference signal to be provided to at least one wireless device operating on a wireless communication network;

provide the reference signal generated based at least in part on the generated power parameter to the at least one wireless device; and

provide the generated power parameter to one or more transmission points,

wherein at least one of the one or more transmission points is configured to communicate the power parameter to the at least one wireless device.

45. The computing device-readable storage medium of claim 44, wherein the reference signal is a channel state information reference signal (CSI-RS).

46. The computing device-readable storage medium of claim 44, wherein at least a subset of the one or more transmission points includes a common physical cell identifier.

47. The computing device-readable storage medium of claim 44, wherein the instructions further cause the computing device to determine, based at least in part on the power parameter, a power characteristics associated with a channel in which the reference signal is provided.

48. The computing device-readable storage medium of claim 44, wherein the instructions further cause the computing device to determine a power value adjustment that enables the at least one wireless device to calculate the power characteristics, the power value adjustment including one of boosting or de-boosting a power level of the CSI-RS or keeping the power level of the CSI-RS unchanged.