Method of efficiently reporting user equipment transmission power and apparatus thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsSang Bum Kim, Soeng Hun Kim, Gert-Jan Van Lieshout, Kyeong In Jeong
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Abstract
A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.
Claims8
A method by a base station in a wireless communication system, the method comprising:
- transmitting configuration information including a prohibit power headroom report (PHR) timer for the PHR and information indicating whether a PHR format for a user equipment (UE) is an extended PHR to the UE;
- and
- receiving the PHR corresponding to the PHR format from the UE,
- wherein the received PHR is the extended PHR including a maximum transmission power determined in a range between a upper bound of the maximum transmission power and a lower bound of the maximum transmission power, and an indicator indicating whether the UE applies a power management-maximum power reduction (P-MPR), if the PHR format is the extended PHR,
- wherein the received PHR is a normal PHR without the indicator if the PHR format is not the extended PHR,
- wherein the PHR is triggered at the UE, when the prohibit PHR timer is expired, and
- wherein the indicator is set to 1 if the determined maximum transmission power is different from a maximum transmission power not applying a power back-off due to the power management.
A base station in a wireless communication system, the base station comprising:
- a controller configured to:
- transmit configuration information including a prohibit power headroom report (PHR) timer for the PHR and information indicating whether a PHR format for a user equipment (UE) is an extended PHR to the UE, and
- receive the PHR corresponding to the PHR format from the UE,
- wherein the received PHR is the extended PHR includes a maximum transmission power determined in a range between a upper bound of the maximum transmission power and a lower bound of the maximum transmission power, and an indicator indicating whether the UE applies a power management-maximum power reduction (P-MPR), if the PHR format is the extended PHR,
- wherein the received PHR is a normal PHR without the indicator if the PHR format is not the extended PHR
- wherein the PHR is triggered at the UE, when the prohibit PHR timer is expired, and
- wherein the indicator is set to 1 if the maximum transmission power is different from a maximum transmission power not applying a power back-off due to the power management.
Dependencies are inferred from the claim text.