# US 2018/0323930 A1 · Method for transmitting uplink and wireless device using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0323930 A1 - Document ID: US20180323930A1 - Status: Published application - Kind: A1 - Application number: 16/031,558 - Filed: 2018-07-10 - Published: 2018-11-08 - Earliest claimed: 2011-09-29 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Joon Kui AHN; Suck Chel YANG; Yun Jung YI; Dong Youn SEO - Web page: https://patentgrep.com/patent/US20180323930A1 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0037: {Inter-user or inter-terminal allocation} - H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 27/2601: {Multicarrier modulation systems} - H04W 52/146: {Uplink power control} - H04W 52/16: Deriving transmission power values from another channel - H04W 52/32: TPC of broadcast or control channels - H04W 52/325: {Power control of control or pilot channels} - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04W 56/0005: {synchronizing of arrival of multiple uplinks} - H04W 56/0045: {compensating for timing error by altering transmission time} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 4/00: Services specially adapted for wireless communication networks; Facilities therefor - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method and user equipment for performing an uplink transmission in a wireless communication system, are discussed. The method includes allocating transmission power to a first uplink transmission and a second uplink transmission when a total power in a transmission period including at least one or more OFDM symbols exceeds maximum power, wherein each of the first and second uplink transmissions is one of physical uplink shared channel (PUSCH) transmission, physical uplink control channel (PUCCH) transmission, physical random access channel (PRACH) transmission and sounding reference signal (SRS) transmission; and performing the first and second uplink transmissions according to the allocated transmission power, wherein the allocation of the transmission power is performed according to priority information. ## Claims ### Claim 1 A method for performing an uplink transmission in a wireless communication system, the method performed by a user equipment (UE) configured to aggregate carriers and comprising: allocating transmission power to a first uplink transmission and a second uplink transmission when a total power in a transmission period including at least one or more OFDM symbols exceeds maximum power, wherein each of the first and second uplink transmissions is one of physical uplink shared channel (PUSCH) transmission, physical uplink control channel (PUCCH) transmission, physical random access channel (PRACH) transmission and sounding reference signal (SRS) transmission; and performing the first and second uplink transmissions according to the allocated transmission power, wherein the allocation of the transmission power is performed according to priority information, wherein the priority information indicates that the first uplink transmission is prioritized over the second uplink transmission if the first uplink transmission is the PUSCH transmission with uplink control information (UCI) and the second uplink transmission is the PRACH transmission on a secondary cell. ### Claim 2 (depends on 1) The method of claim 1, wherein the allocating of the transmission power comprises, controlling the total power in the transmission period to be equal to or less than the maximum transmission power. ### Claim 3 (depends on 1) The method of claim 1, wherein the priority information indicates that the first uplink transmission is prioritized over the second uplink transmission if the first uplink transmission is the PUCCH transmission and the second uplink transmission is the PRACH transmission on the secondary cell. ### Claim 4 (depends on 1) The method of claim 1, wherein the priority information indicates that the first uplink transmission is prioritized over the second uplink transmission if the first uplink transmission is the PUCCH transmission or the PUSCH transmission and the second uplink transmission is the SRS transmission. ### Claim 5 (depends on 1) The method of claim 1, wherein the first uplink transmission is performed toward a first cell, wherein the first cell and the secondary cell belong to different timing advance (TA) groups. ### Claim 6 A user equipment (UE) for performing an uplink transmission in a wireless communication system, the UE configured to aggregate carriers and comprising: a transceiver configured to transmit the uplink transmission; and a processor operatively configured to control the transceiver, wherein the processor is further configured to: allocate transmission power to a first uplink transmission and a second uplink transmission when a total power in a transmission period including at least one or more OFDM symbols exceeds maximum power, and control the transceiver to perform the first and second uplink transmissions according to the allocated transmission power, wherein the transmission power is allocated according to priority information, wherein each of the first and second uplink transmissions is one of physical uplink shared channel (PUSCH) transmission, physical uplink control channel (PUCCH) transmission, physical random access channel (PRACH) transmission and sounding reference signal (SRS) transmission; and wherein the priority information indicates that the first uplink transmission is prioritized over the second uplink transmission if the first uplink transmission is the PUSCH transmission with uplink control information (UCI) and the second uplink transmission is the PRACH transmission on a secondary cell. ### Claim 7 (depends on 6) The UE of claim 6, wherein the processor is further configured to control the total power in the transmission period to be equal to or less than the maximum transmission power. ### Claim 8 (depends on 6) The UE of claim 6, wherein the priority information indicates that the first uplink transmission is prioritized over the second uplink transmission if the first uplink transmission is the PUCCH transmission and the second uplink transmission is the PRACH transmission on the secondary cell. ### Claim 9 (depends on 6) The UE of claim 6, wherein the priority information indicates that the first uplink transmission is prioritized over the second uplink transmission if the first uplink transmission is the PUCCH transmission or the PUSCH transmission and the second uplink transmission is the SRS transmission. ### Claim 10 (depends on 6) The method of claim 6, wherein the first uplink transmission is performed toward a first cell, wherein the first cell and the secondary cell belong to different timing advance (TA) groups.