Method of efficiently reporting user equipment transmission power and apparatus thereof
First Claim
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1. A method performed by a base station in a wireless communication system, the method comprising:
- transmitting configuration information associated with a power headroom report (PHR) to a terminal in the wireless communication system; and
receiving a PHR from the terminal,wherein the PHR does not include information on a maximum transmission power for a first activated serving cell in case that an uplink grant for the first activated serving cell is not received by the terminal,wherein the PHR includes and a maximum transmission power for a second activated serving cell in case that an uplink grant for the second activated serving cell is received by the terminal, andwherein the PHR is triggered at the terminal, in case that a PHR prohibit timer expires and a power backoff due to power management is changed by more than a threshold.
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Abstract
A method and an apparatus for efficiently reporting user equipment (UE) are provided. A method of transmitting Power Headroom Report (PHR) of UE in a mobile communication system, includes configuring an evolved PHR including an indicator with respect of a variation factor of maximum transmission power of the UE, and transmitting the evolved PHR to an eNB. An eNB may know maximum transmission power of an UE and a variation factor thereof to enable efficient scheduling.
54 Citations
20 Claims
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1. A method performed by a base station in a wireless communication system, the method comprising:
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transmitting configuration information associated with a power headroom report (PHR) to a terminal in the wireless communication system; and receiving a PHR from the terminal, wherein the PHR does not include information on a maximum transmission power for a first activated serving cell in case that an uplink grant for the first activated serving cell is not received by the terminal, wherein the PHR includes and a maximum transmission power for a second activated serving cell in case that an uplink grant for the second activated serving cell is received by the terminal, and wherein the PHR is triggered at the terminal, in case that a PHR prohibit timer expires and a power backoff due to power management is changed by more than a threshold. - View Dependent Claims (2, 3, 4, 5)
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6. A base station in a wireless communication system, the base station comprising:
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a transceiver; and a controller configured to; transmit, via the transceiver, configuration information associated with a power headroom report (PHR) to a terminal in the wireless communication system, and receive, via the transceiver, a PHR from the terminal, wherein the PHR does not include a maximum transmission power for a first activated serving cell if an uplink grant for the first activated serving cell is not received by the terminal, wherein the PHR includes a maximum transmission power for a second activated serving cell if an uplink grant for the second activated serving cell is received by the terminal, and wherein the PHR is triggered at the terminal, if a PHR prohibit timer expires and a power backoff due to power management is changed by more than a threshold. - View Dependent Claims (7, 8, 9, 10)
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11. A method performed by a terminal in a wireless communication system, the method comprising:
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receiving configuration information associated with a power headroom report (PHR) from a base station in the wireless communication system; identifying whether a PHR is triggered; and transmitting the PHR to the base station in case that the PHR is triggered, wherein the PHR does not include a maximum transmission power for a first activated serving cell in case that an uplink grant for the first activated serving cell is not received by the terminal, wherein the PHR includes a maximum transmission power for a second activated serving cell in case that an uplink grant for the second activated serving cell is received by the terminal, and wherein the PHR is triggered in case that a PHR prohibit timer expires and a power backoff due to power management is changed by more than a threshold. - View Dependent Claims (12, 13, 14, 15)
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16. A terminal in a wireless communication system, the terminal comprising:
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a transceiver; and a controller configured to; receive, via the transceiver, configuration information associated with a power headroom report (PHR) from a base station in the wireless communication system, identify whether a PHR is triggered, and transmit, via the transceiver, the PHR to the base station if the PHR is triggered, wherein the PHR does not include a maximum transmission power for a first activated serving cell if an uplink grant for the first activated serving cell is not received by the terminal, wherein the PHR includes a maximum transmission power for a second activated serving cell if an uplink grant for the second activated serving cell is received by the terminal, and wherein the PHR is triggered if a PHR prohibit timer expires and a power backoff due to power management is changed by more than a threshold. - View Dependent Claims (17, 18, 19, 20)
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Specification