Method of efficiently reporting user equipment transmission power and apparatus thereof
First Claim
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1. A method performed by a terminal in a wireless communication system, the method comprising:
- identifying whether the terminal has an uplink resource for a new transmission;
in case that the terminal has the uplink resource for the new transmission, identifying whether a power headroom report (PHR) prohibit timer expires and a power backoff due to power management is changed by more than a threshold;
in case that the PHR prohibit timer expires and the power backoff due to power management is changed by more than the threshold, generating a PHR including information on a power headroom (PH); and
transmitting the PHR to a base station in the wireless communication system,wherein the PHR further includes information indicating whether the terminal applies the power backoff due to power management, in case that the PHR is associated with multiple serving cells, andwherein the PHR does not include information on a maximum transmission power for an activated serving cell, in case that an uplink grant for the activated serving cell is not received by the terminal.
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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.
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Citations
20 Claims
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1. A method performed by a terminal in a wireless communication system, the method comprising:
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identifying whether the terminal has an uplink resource for a new transmission; in case that the terminal has the uplink resource for the new transmission, identifying whether a power headroom report (PHR) prohibit timer expires and a power backoff due to power management is changed by more than a threshold; in case that the PHR prohibit timer expires and the power backoff due to power management is changed by more than the threshold, generating a PHR including information on a power headroom (PH); and transmitting the PHR to a base station in the wireless communication system, wherein the PHR further includes information indicating whether the terminal applies the power backoff due to power management, in case that the PHR is associated with multiple serving cells, and wherein the PHR does not include information on a maximum transmission power for an activated serving cell, in case that an uplink grant for the activated serving cell is not received by the terminal. - View Dependent Claims (2, 3, 4, 5)
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6. A terminal in a wireless communication system, the terminal comprising:
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a transceiver; and a controller configured to; identify whether the terminal has an uplink resource for a transmission, if the terminal has the uplink resource for the transmission, identify whether a power headroom report (PHR) prohibit timer expires and a power backoff due to power management is changed by more than a threshold, if the PHR prohibit timer expires and the power backoff due to a power management is changed by more than the threshold, generate a PHR including a power headroom (PH), wherein the PHR further includes information indicating whether the terminal applies the power backoff due to power management if the PHR is associated with multiple serving cells, and the PHR does not include information on a maximum transmission power for an activated serving cell if an uplink grant for the activated serving cell is not received by the terminal, and transmit, via the transceiver, the PHR to a base station in the wireless communication system. - View Dependent Claims (7, 8, 9, 10)
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11. A method performed by a base station in a wireless communication system, the method comprising:
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transmitting power headroom report (PHR) configuration information including a threshold to a terminal in the wireless communication system; and receiving a PHR including information on a power headroom (PH) from the terminal, wherein the PHR is triggered in case that the terminal has an uplink resource for a new transmission and that a PHR prohibit timer expires and a power backoff due to power management is changed by more than the threshold, wherein the PHR further includes information indicating whether the terminal applies the power backoff due to power management, in case that the PHR is associated with multiple serving cells, and wherein the PHR does not include information on a maximum transmission power for an activated serving cell, in case that an uplink grant for the first activated serving cell is not received by the terminal. - View Dependent Claims (12, 13, 14, 15)
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16. 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, power headroom report (PHR) configuration information including a threshold to a terminal in the wireless communication system, and receive, via the transceiver, a PHR including a power headroom (PH) from the terminal, wherein the PHR is triggered if the terminal has an uplink resource for a transmission and if a PHR prohibit timer expires and a power backoff due to power management is changed by more than the threshold, wherein the PHR further includes information indicating whether the terminal applies the power backoff due to power management, if the PHR is associated with multiple serving cells, and wherein the PHR does not include information on a maximum transmission power for an activated serving cell, if an uplink grant for the activated serving cell is not received by the terminal. - View Dependent Claims (17, 18, 19, 20)
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Specification