Power headroom reporting method in wireless communication system supporting change in use of wireless resource and apparatus for same
First Claim
1. A method of performing power headroom reporting by a user equipment (UE) in a wireless communication system supporting usage change of a radio resource, the method comprising the steps of:
- determining whether the power headroom reporting is triggered;
transmitting, to a base station, power headroom reporting (PHR) information on two uplink subframe sets associated with a same serving cell,wherein the two uplink subframe sets comprise a first uplink subframe set and a second subframe set, which are configured to use different transmission power control parameters indicated by high layer signaling,wherein the PHR information is determined to be valid for only one uplink subframe set among the two uplink subframe sets, and the only one uplink subframe set includes an uplink subframe in which a Physical Uplink Shared Channel (PUSCH) comprising the PHR information is transmitted, andwherein the PHR information is rounded up to the closest value within a predetermined range at increments of 1 DB; and
canceling triggered PHR related to the uplink subframe, which are triggered before the time of transmitting the PHR information.
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Abstract
The present invention proposes a power headroom reporting method and apparatus of a terminal in a wireless communication system supporting a change in use of wireless resources. More particularly, the method comprises the steps of: determining whether power headroom reporting is triggered; and transmitting power headroom reporting (PHR) information for first upper link wireless resource and second upper link wireless resource to a base station, wherein the first upper link wireless resource is configured to allow the use of the wireless resource to be dynamically changed and the second upper link wireless resource is configured to prevent the use of the wireless resources from being dynamically changed.
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Citations
13 Claims
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1. A method of performing power headroom reporting by a user equipment (UE) in a wireless communication system supporting usage change of a radio resource, the method comprising the steps of:
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determining whether the power headroom reporting is triggered; transmitting, to a base station, power headroom reporting (PHR) information on two uplink subframe sets associated with a same serving cell, wherein the two uplink subframe sets comprise a first uplink subframe set and a second subframe set, which are configured to use different transmission power control parameters indicated by high layer signaling, wherein the PHR information is determined to be valid for only one uplink subframe set among the two uplink subframe sets, and the only one uplink subframe set includes an uplink subframe in which a Physical Uplink Shared Channel (PUSCH) comprising the PHR information is transmitted, and wherein the PHR information is rounded up to the closest value within a predetermined range at increments of 1 DB; and canceling triggered PHR related to the uplink subframe, which are triggered before the time of transmitting the PHR information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A user equipment, performing power headroom reporting in a wireless communication system supporting usage change of a radio resource, comprising:
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a radio frequency unit; and a processor, the processor configured; to determine whether the power headroom reporting is triggered, to transmit, to a base station, power headroom reporting (PHR) information on two uplink subframe sets associated with a same serving cell, wherein the two uplink subframe sets comprise a first uplink subframe set and a second subframe set, which are configured to use different transmission power control parameters indicated by high layer signaling, wherein the PHR information is determined to be valid for only one uplink subframe set among the two uplink subframe sets, and the only one uplink subframe set includes an uplink subframe in which a Physical Uplink Shared Channel (PUSCH) comprising the PHR information is transmitted, and wherein the PHR information is rounded up to the closest value within a predetermined range at increments of 1 DB, and to cancel triggered PHR related to the uplink subframe, which are triggered before the time of transmitting the PHR information.
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Specification