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 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.
Claims20
A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
- identifying whether a power headroom report (PHR) is triggered;
- and
- transmitting, to a base station, the PHR in case that the PHR is triggered,
- wherein the PHR is triggered in case that a PHR prohibit timer expires or has expired, the UE has an uplink resources for a new transmission, a power backoff due to power management for any of activated serving cell has changed by more than a threshold since a last transmission of another PHR,
- wherein, in case that the PHR is for single serving cell, the PHR includes a power headroom (PH) for the single serving cell and a maximum transmission power used to calculate the PH, and
- wherein, in case that the PHR is for multiple serving cells, the PHR includes PHs for each of activated serving cells and information indicating whether the UE applies the power backoff due to power management.
A method performed by a base station in a wireless communication system, the method comprising:
- transmitting, to a user equipment (UE), power headroom report (PHR) configuration information;
- and
- receiving, from the UE, a PHR in case that the PHR is triggered,
- wherein the PHR is triggered in case that a PHR prohibit timer expires or has expired, the UE has an uplink resources for a new transmission, a power backoff due to power management for any of activated serving cell has changed by more than a threshold since a last transmission of another PHR,
- wherein, in case that the PHR is for single serving cell, the PHR includes a power headroom (PH) for the single serving cell and a maximum transmission power used to calculate the PH, and
- wherein, in case that the PHR is for multiple serving cells, the PHR includes PHs for each of activated serving cells and information indicating whether the UE applies the power backoff due to power management.
A user equipment (UE) in a wireless communication system, the UE comprising:
- a transceiver;
- and
- a controller configured to:
- identify whether a power headroom report (PHR) is triggered, and
- transmit, to a base station via the transceiver, the PHR in case that the PHR is triggered,
- wherein the PHR is triggered in case that a PHR prohibit timer expires or has expired, the UE has an uplink resources for a new transmission, a power backoff due to power management for any of activated serving cell has changed by more than a threshold since a last transmission of another PHR,
- wherein, in case that the PHR is for single serving cell, the PHR includes a power headroom (PH) for the single serving cell and a maximum transmission power used to calculate the PH, and
- wherein, in case that the PHR is for multiple serving cells, the PHR includes PHs for each of activated serving cells and information indicating whether the UE applies the power backoff due to power management.
A base station in a wireless communication system, the base station comprising:
- a transceiver;
- and
- a controller configured to:
- transmit, to a user equipment (UE) via the transceiver, power headroom report (PHR) configuration information, and
- receive, from the UE via the transceiver, a PHR in case that the PHR is triggered,
- wherein the PHR is triggered in case that a PHR prohibit timer expires or has expired, the UE has an uplink resources for a new transmission, a power backoff due to power management for any of activated serving cell has changed by more than a threshold since a last transmission of another PHR,
- wherein, in case that the PHR is for single serving cell, the PHR includes a power headroom (PH) for the single serving cell and a maximum transmission power used to calculate the PH, and
- wherein, in case that the PHR is for multiple serving cells, the PHR includes PHs for each of activated serving cells and information indicating whether the UE applies the power backoff due to power management.
Dependencies are inferred from the claim text.