Method and apparatus for transmitting and receiving power headroom report in a wireless communication system
AssigneeLG Electronics Inc.
InventorsSungjun Park, Sunghoon Jung, Seungjune Yi, Youngdae Lee
Life of this patent
Estimating the term…
Abstract
The invention relates to a wireless communication system. A method for transmitting a power headroom report (PHR) from a terminal according to an embodiment of the present invention may include determining whether a time alignment timer (TAT) for a serving cell is operating; and transmitting, to a base station, a PHR including only the PHR on the serving cell in which the TAT is operating.
Claims15
A method for transmitting a power headroom report (PHR) from a user equipment, the method comprising the steps of:
- determining whether a time alignment timer (TAT) for a serving cell is running;
- and
- transmitting, to a base station, a PHR including power headroom information only for the serving cell of which the TAT is running.
A method for allowing a base station to control an uplink transmission power of a user equipment, the method comprising the steps of:
- receiving a power headroom report (PHR), which includes power headroom information only for a serving cell of which TAT is running, from the user equipment;
- and
- transmitting uplink transmission power control information determined on the basis of the PHR to the user equipment.
A user equipment for transmitting a power headroom report (PHR), the user equipment comprising:
- a reception module configured to receive a downlink signal from a base station;
- a transmission module configured to transmit an uplink signal to the base station;
- and
- a processor configured to control the user equipment, which includes the reception module and the transmission module,
- wherein the processor is configured to determine whether a time alignment timer (TAT) for a serving cell is running and transmit, to a base station, a PHR including power headroom information only for the serving cell of which TAT is running
A base station for controlling an uplink transmission power of a user equipment, the base station comprising:
- a reception module configured to receive an uplink signal from a user equipment;
- a transmission module configured to transmit a downlink signal to the user equipment;
- and
- a processor configured to control the base station, includes the reception module and the transmission module,
- wherein the processor is configured to receive a PHR, which includes power headroom information only for the serving cell of which TAT is running, from the user equipment through the reception module, and is configured to transmit uplink transmission power control information determined on the basis of the PHR to the user equipment through the transmission module.
Dependencies are inferred from the claim text.