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US 10,834,682 B2Granted
Method and apparatus for controlling uplink power in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsSun-Heui Ryoo, Jung-Soo Jung, Hyun-Jeong Kang, Jong-Hyung Kwun, Sung-Jin Lee
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Abstract
A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.
Claims20
A method for operating a user equipment (UE) in a wireless communication system, the method comprising:
- establishing a first link with a first base station (BS) and a second link with a second BS, the first BS and the second BS configured in a dual connectivity for the UE;
- obtaining first control information for the first BS including:
- a periodic timer for the first BS,
- a prohibit timer for the first BS, and
- a first threshold for the first BS;
- obtaining second control information for the second BS including:
- a periodic timer for the second BS,
- a prohibit timer for the second BS, and
- a second threshold for the second BS;
- and
- based on identifying that a power headroom report (PHR) trigger event associated with the first BS occurs, transmitting a dual connectivity PHR to the second BS, wherein the PHR trigger event associated with the first BS comprises a path loss change being greater than the first threshold,
- wherein the dual connectivity PHR includes a first power headroom (PH) for a cell provided by the first BS and a second PH for a cell provided by the second BS.
9 more elements
A user equipment (UE) in a wireless communication system, the UE comprising:
- at least one transceiver;
- and
- at least one processor coupled to the at least one transceiver and configured to:
- establish a first link with a first base station (BS) and a second link with a second BS, the first BS and the second BS configured in a dual connectivity for the UE,
- obtain first control information for the first BS including:
- a periodic timer for the first BS,
- a prohibit timer for the first BS, and
- a first threshold for the first BS,
- obtain second control information for the second BS including:
- a periodic timer for the second BS,
- a prohibit timer for the second BS, and
- a second threshold for the second BS, and
- based on identifying that a power headroom report (PHR) trigger event associated with the first BS occurs, control the at least one transceiver to transmit a dual connectivity PHR to the second BS, wherein the PHR trigger event associated with the first BS comprises a path loss change being greater than the first threshold,
- wherein the dual connectivity PHR includes a first power headroom (PH) for a cell provided by the first BS and a second PH for a cell provided by the second BS.
11 more elements
A method for operating a first base station (BS) in a wireless communication system, the method comprising:
- transmitting, first control information for the first BS including:
- a periodic timer for the first BS,
- a prohibit timer for the first BS, and
- a first threshold for the first BS;
- and
- receiving, from a user equipment (UE), a dual connectivity PHR including a first power headroom (PH) for a cell provided by the first BS and a second PH for a cell provided by a second BS,
- wherein the first BS and the second BS are configured in a dual connectivity,
- wherein the dual connectivity PHR is transmitted from the UE based on identifying that a power headroom report (PHR) trigger event associated with the second BS occurs,
- wherein the PHR trigger event associated with the second BS comprises a path loss change being greater than a second threshold, and
- wherein the second threshold is obtained from second control information including:
- a periodic timer for the second BS,
- a prohibit timer for the second BS, and
- the second threshold for the second BS.
10 more elements
A first base station (BS) in a wireless communication system, the first BS comprising:
- at least one transceiver;
- and
- at least one processor coupled to the at least one transceiver and configured to control the at least one transceiver to:
- transmit, first control information for the first BS including:
- a periodic timer for the first BS,
- a prohibit timer for the first BS, and
- a first threshold for the first BS, and
- receive, from a user equipment (UE), a dual connectivity PHR including a first power headroom (PH) for a cell provided by the first BS and a second PH for a cell provided by a second BS,
- wherein the first BS and the second BS are configured in a dual connectivity,
- wherein the dual connectivity PHR is transmitted from the UE based on identifying that a power headroom report (PHR) trigger event associated with the second BS occurs,
- wherein the PHR trigger event associated with the second BS comprises a path loss change being greater than a second threshold, and
- wherein the second threshold is obtained from second control information including:
- a periodic timer for the second BS,
- a prohibit timer for the second BS, and
- the second threshold for the second BS.
12 more elements
Dependencies are inferred from the claim text.