# US 12,192,911 B2 · Method and apparatus for power control > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,911 B2 - Document ID: US12192911B2 - Status: Granted - Kind: B2 - Application number: 17/640,116 - Filed: 2019-09-29 - Published: 2023-05-18 - Granted: 2025-01-07 - Earliest claimed: 2019-09-29 - Assignees: Lenovo (Beijing) Limited - Applicants: Lenovo (Beijing) Limited - Inventors: Zhi Yan; Haipeng Lei; Jie Shi; Lianhai Wu; Haiming Wang - Web page: https://patentgrep.com/patent/US12192911B2 ## CPC - H04W 52/146: {Uplink power control} - H04W 52/362: {Aspects of the step size} - H04W 52/08: Closed loop power control - H04W 52/10: Open loop power control - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments of the present application are directed to a method and apparatus for power control. In an embodiment of the present application, the method includes transmitting an uplink signal, wherein a transmission power of the uplink signal is determined according to a power control scheme, and the power control scheme is selected from at least one of an open loop power control scheme, a first closed loop power control scheme, a second closed loop power scheme with power ramping step selection, a third closed loop power scheme with scaling factor to power adjustment indicator, a fourth closed loop power scheme with later uplink signal corresponding power adjustment indicator adoption. ## Claims ### Claim 1 A method performed by a user equipment (UE), the method comprising: transmitting an uplink signal, wherein a transmission power of the uplink signal is determined according to a power control scheme selected from a set of power control schemes comprising a third closed loop power scheme with scaling factor to power adjustment indicator and a fourth closed loop power scheme with later uplink signal corresponding power adjustment indicator adoption. ### Claim 2 (depends on 1) The method of claim 1, wherein the power control scheme is selected based on at least one of subcarrier spacing of the uplink signal, scheduling delay, resource unit (RU) size of the uplink signal, repetition number of the uplink signal, transmission gap, radio resource control (RRC) signaling, or a threshold. ### Claim 3 (depends on 1) The method of claim 1, wherein the third closed loop power scheme with scaling factor to power adjustment indicator comprises a power control scheme that the transmission power of the uplink signal is determined by a power adjustment indicator indicated by a control signal and by a scaling factor. ### Claim 4 (depends on 3) The method of claim 3, wherein the scaling factor is configured by higher layer, and the scaling factor is determined based on at least one of scheduling delay, resource unit (RU) size of the uplink signal, repetition number of the uplink signal, a transmission gap, radio resource control (RRC) signaling, or a threshold. ### Claim 5 (depends on 4) The method of claim 4, wherein the threshold is configured by the RRC signaling or fixed. ### Claim 6 (depends on 1) The method of claim 1, wherein the fourth closed loop power scheme with later uplink signal corresponding power adjustment indicator adoption comprises a power control scheme that the transmission power of the uplink signal is determined by a first number of power adjustment indicators indicated by control signals corresponding to the uplink signal and later uplink signals later than the uplink signal. ### Claim 7 (depends on 6) The method of claim 6, wherein the first number is determined by a maximal hybrid automatic repeat request (HARQ) process number. ### Claim 8 (depends on 6) The method of claim 6, wherein the control signals are between a second number of time units before a previous one uplink signal of the uplink signal and a third number of time units before the uplink signal, and wherein the second number and the third number are a fixed number or a minimum scheduling delay or configured by radio resource control (RRC) signaling. ### Claim 9 An apparatus, comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the apparatus to: select a power control scheme from a set of power control schemes comprising a third closed loop power scheme with scaling factor to power adjustment indicator and a fourth closed loop power scheme with later uplink signal corresponding power adjustment indicator adoption; determine a transmission power according to the selected power control scheme; and transmit an uplink signal based on the determined transmission power. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the power control scheme is further selected based on at least one of subcarrier spacing of the uplink signal, scheduling delay, resource unit (RU) size of the uplink signal, repetition number of the uplink signal, transmission gap, radio resource control (RRC) signaling, or a threshold. ### Claim 11 A user equipment (UE) comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the UE to: select a power control scheme from a set of power control schemes comprising a third closed loop power scheme with scaling factor to power adjustment indicator and a fourth closed loop power scheme with later uplink signal corresponding power adjustment indicator adoption; determine a transmission power according to the selected power control scheme; and transmit an uplink signal based on the determined transmission power. ### Claim 12 (depends on 11) The UE of claim 11, wherein the power control scheme is further selected based on at least one of subcarrier spacing of the uplink signal, scheduling delay, resource unit (RU) size of the uplink signal, repetition number of the uplink signal, a transmission gap, radio resource control (RRC) signaling, or a threshold. ### Claim 13 (depends on 11) The UE of claim 11, wherein the third closed loop power scheme with scaling factor to power adjustment indicator comprises a power control scheme that the transmission power of the uplink signal is determined by a power adjustment indicator indicated by a control signal and by a scaling factor. ### Claim 14 (depends on 13) The UE of claim 13, wherein the scaling factor is configured by higher layer, and the scaling factor is determined based on at least one of scheduling delay, resource unit (RU) size of the uplink signal, repetition number of the uplink signal, a transmission gap, radio resource control (RRC) signaling, or a threshold. ### Claim 15 (depends on 14) The UE of claim 14, wherein the threshold is configured by the RRC signaling or fixed. ### Claim 16 (depends on 11) The UE of claim 11, wherein the fourth closed loop power scheme with later uplink signal corresponding power adjustment indicator adoption comprises a power control scheme that the transmission power of the uplink signal is determined by a first number of power adjustment indicators indicated by control signals corresponding to the uplink signal and later uplink signals later than the uplink signal. ### Claim 17 A processor for wireless communication, comprising: at least one controller coupled with at least one memory and configured to cause the processor to: select a power control scheme from a set of power control schemes comprising a third closed loop power scheme with scaling factor to power adjustment indicator and a fourth closed loop power scheme with later uplink signal corresponding power adjustment indicator adoption; determine a transmission power according to the selected power control scheme; and transmit an uplink signal based on the determined transmission power. ### Claim 18 (depends on 17) The processor of claim 17, wherein the power control scheme is further selected based on at least one of subcarrier spacing of the uplink signal, scheduling delay, resource unit (RU) size of the uplink signal, repetition number of the uplink signal, transmission gap, radio resource control (RRC) signaling, or a threshold. ### Claim 19 (depends on 17) The processor of claim 17, wherein the third closed loop power scheme with scaling factor to power adjustment indicator comprises a power control scheme that the transmission power of the uplink signal is determined by a power adjustment indicator indicated by a control signal and by a scaling factor. ### Claim 20 (depends on 19) The processor of claim 19, wherein the scaling factor is configured by higher layer, and the scaling factor is determined based on at least one of scheduling delay, resource unit (RU) size of the uplink signal, repetition number of the uplink signal, a transmission gap, radio resource control (RRC) signaling, or a threshold.