# US 9,439,152 B2 · Method and device for controlling transmission power in uplink transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,439,152 B2 - Document ID: US9439152B2 - Status: Granted - Kind: B2 - Application number: 14/607,774 - Filed: 2015-01-28 - Published: 2015-05-28 - Granted: 2016-09-06 - Earliest claimed: 2009-02-25 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Moon Il Lee; Jae Hoon Chung; Hyun Soo Ko; Bin Chul Ihm; Yeong Hyeon Kwon - Web page: https://patentgrep.com/patent/US9439152B2 ## CPC - H04W 52/146: {Uplink power control} - H04B 7/0691: {using subgroups of transmit antennas} - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04W 72/0413 - H04W 52/325: {Power control of control or pilot channels} - H04W 52/42: in systems with time, space, frequency or polarisation diversity - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups. ## Claims ### Claim 1 A user equipment for supporting multiple component carriers through carrier aggregation, comprising: a processor configured to determine a maximum transmission power PMAX,PUCCH of physical uplink control channel (PUCCH) and a maximum transmission power PMAX,PUSCH of physical uplink shared channel (PUSCH) for a component carrier x among the multiple component carriers; and a radio frequency (RF) unit, coupled to the processor, configured to transmit the PUCCH and the PUSCH on the component carrier x, wherein the RF unit is further configured to receive control information associated with respective maximum allowed powers for the multiple component carriers, wherein the maximum transmission power PMAX,PUCCH is set to be PPMAX,x, where PMAX,x is a maximum allowed power for the component carrier x, and wherein the maximum transmission power PMAX,PUSCH is set to be ‘PMAX,x-PPUCCH’, where PPUCCH is a transmission power of the PUCCH. ### Claim 2 (depends on 1) The user equipment of claim 1, wherein the processor is further configured to determine the transmission power PPUCCH of the PUCCH within the maximum transmission power PMAX,PUCCH; and a transmission power PPUSCH of the PUSCH within the maximum transmission power PMAX,PUSCH. ### Claim 3 (depends on 2) The user equipment of claim 2, wherein the RF unit is configured to transmit the PUCCH at the transmission power PPUCCH and the PUSCH at the transmission power PPUSCH on the component carrier x simultaneously. ### Claim 4 (depends on 3) The user equipment of claim 3, further comprising: a plurality of antennas, wherein the RF unit is further configured to receive information indicating one or more antennas to be turned on or turned off and to transmit the PUCCH and the PUSCH through one or more antennas turned on. ### Claim 5 (depends on 1) The user equipment of claim 1, wherein the multiple component carriers share a maximum transmission power PMAX of the user equipment. ### Claim 6 (depends on 1) The user equipment of claim 1, wherein the component carrier x is a primary component carrier among the multiple component carriers. ### Claim 7 A method for transmitting uplink signal at a user equipment supporting multiple component carriers through carrier aggregation, comprising: receiving control information associated with respective maximum allowed power for the multiple component carriers; determining a maximum transmission power PMAX,PUCCH of a physical uplink control channel (PUCCH) and a maximum transmission power PMAX,PUSCH of a physical uplink shared channel (PUSCH) for a component carrier x among the multiple component carriers based on a maximum allowed power for the component carrier x among the respective maximum allowed power for the multiple component carriers; and transmitting the PUCCH and the PUSCH on the component carrier x, wherein the method further comprises: receiving control information associated with a maximum allowed power for each of the multiple component carriers, wherein the maximum transmission power PMAX,PUCCH is set to be PMAX,x, where PMAX,x is the maximum allowed power for the component carrier x, and wherein the maximum transmission power PMAX,PUSCH is set to be ‘PMAX,x-PPUCCH’, where PPUCCH is a transmission power of the PUCCH. ### Claim 8 (depends on 7) The method of claim 7, further comprising: determining the transmission power PPUCCH of the PUCCH within the maximum transmission power PMAX,PUCCH; and determining a transmission power PPUSCH of the PUSCH within the maximum transmission power PMAX,PUSCH. ### Claim 9 (depends on 8) The method of claim 8, wherein transmitting the PUCCH and the PUSCH comprises transmitting the PUCCH at the transmission power PPUCCH and the PUSCH at the transmission power PPUSCH on the component carrier x simultaneously. ### Claim 10 (depends on 9) The method of claim 9, wherein the user equipment includes a plurality of antennas, and the method further comprises: receiving information indicating one or more antennas of the plurality of antennas to be turned on or turned off; and transmitting the PUCCH and the PUSCH through one or more antennas turned on. ### Claim 11 (depends on 7) The method of claim 7, wherein the multiple component carriers share a maximum transmission power PMAX of the user equipment. ### Claim 12 (depends on 7) The method of claim 7, wherein the component carrier x is a primary component carrier among the multiple component carriers.