# US 12,120,726 B2 · Methods, apparatus and systems for determining a transmission power for an uplink transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,120,726 B2 - Document ID: US12120726B2 - Status: Granted - Kind: B2 - Application number: 17/488,932 - Filed: 2021-09-29 - Published: 2022-05-26 - Granted: 2024-10-15 - Earliest claimed: 2019-03-29 - Assignees: Zte Corporation - Applicants: ZTE Corporation - Inventors: Chenchen Zhang; Peng Hao; Xingguang Wei; Yu Ngok Li - Web page: https://patentgrep.com/patent/US12120726B2 ## CPC - H04W 48/12: using downlink control channel - H04W 72/543: based on requested quality, e.g. QoS - H04L 5/0032: {Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation} - H04W 52/146: {Uplink power control} - H04W 52/262: {taking into account adaptive modulation and coding [AMC] scheme} - H04W 52/34: TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading - H04W 52/223: {predicting future states of the transmission} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Methods, apparatus and systems for determining a transmission power for an uplink transmission are disclosed. In one embodiment, a method performed by a wireless communication device is disclosed. The method comprises: determining or applying a transmission power for an uplink transmission of the wireless communication device based at least partially on a time threshold associated with the uplink transmission, wherein the time threshold indicates a latest time the transmission power should be determined; and performing the uplink transmission based on the transmission power to a wireless communication node. ## Claims ### Claim 1 A method performed by a wireless communication device, the method comprising: determining a transmission power for an uplink transmission of the wireless communication device based at least partially on a time threshold associated with the uplink transmission, wherein the time threshold indicates a latest time the transmission power should be determined, and wherein the time threshold is determined with consideration of at least one of: whether the uplink transmission carries a hybrid automatic repeat request (HARQ) feedback; whether the uplink transmission carries a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH) scheduled or activated by a Physical Downlink Control Channel (PDCCH); or whether the uplink transmission carries an aperiodic Channel State Information (CSI) feedback; and performing the uplink transmission based on the transmission power to a wireless communication node. ### Claim 2 (depends on 1) The method of claim 1, wherein the time threshold is determined based on one of: a semi-static configuration by the wireless communication node or based on a system pre-definition, or a type of the uplink transmission, and wherein the time threshold is related to a time delay for the wireless communication device to prepare the uplink transmission. ### Claim 3 (depends on 1) The method of claim 1, further comprising: receiving at least one symbol via physical downlink control channel (PDCCH) from the wireless communication node for activating or scheduling the uplink transmission, wherein the transmission power is determined based on both the time threshold and an ending time for receiving the at least one symbol. ### Claim 4 (depends on 3) The method of claim 3, wherein: under a determination that the ending time is before the time threshold, the transmission power is determined no later than the time threshold; and under a determination that the ending time is not before the time threshold, the transmission power is determined immediately after receiving the at least one symbol. ### Claim 5 (depends on 1) The method of claim 1, further comprising: determining whether the wireless communication device is in a first situation where the wireless communication device has an additional uplink transmission having an overlapping time-domain transmission resource with the uplink transmission, or in a second situation where the wireless communication device has no additional uplink transmission having an overlapping time-domain transmission resource with the uplink transmission, wherein: the wireless communication node is in a first cell group for a dual connection or multi-connection of the wireless communication device; and the additional uplink transmission is transmitted to a wireless communication node in a second cell group for the dual connection or multi-connection. ### Claim 6 (depends on 5) The method of claim 5, further comprising: receiving a power modification indication from the wireless communication node, wherein the power modification indication indicates whether and how to modify at least one parameter in downlink control information (DCI) activating or scheduling the uplink transmission, and wherein the at least one parameter comprises a modulation coding scheme (MCS) and a transmit power control (TPC). ### Claim 7 (depends on 6) The method of claim 6, further comprising: under a determination that the wireless communication device is in the second situation, utilizing the at least one parameter in the DCI for the uplink transmission without modification; and under a determination that the wireless communication device is in the first situation, modifying the at least one parameter in the DCI based on the power modification indication to generate at least one modified parameter, and utilizing the at least one modified parameter for the uplink transmission. ### Claim 8 (depends on 5) The method of claim 5, further comprising: receiving a power modification indication from the wireless communication node, wherein the power modification indication indicates whether at least one parameter in downlink control information (DCI) activating or scheduling the uplink transmission is configured for the first situation or for the second situation; under a determination that the at least one parameter in the DCI is configured for a situation which the wireless communication device is in, utilizing the at least one parameter in the DCI for the uplink transmission without modification; and under a determination that the at least one parameter in the DCI is configured for a situation which the wireless communication device is not in, modifying the at least one parameter in the DCI based on the power modification indication to generate at least one modified parameter, and utilizing the at least one modified parameter for the uplink transmission. ### Claim 9 A method performed by a wireless communication node, the method comprising: configuring a time threshold associated with an uplink transmission for a wireless communication device, wherein: the time threshold indicates a latest time a transmission power of the uplink transmission should be determined; and the time threshold is determined with consideration of at least one of: whether the uplink transmission carries a hybrid automatic repeat request (HARQ) feedback; whether the uplink transmission carries a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH) scheduled or activated by a Physical Downlink Control Channel (PDCCH); or whether the uplink transmission carries an aperiodic Channel State Information (CSI) feedback; and receiving the uplink transmission from the wireless communication device, wherein the uplink transmission is performed based on a transmission power that is determined based at least partially on the time threshold associated with the uplink transmission. ### Claim 10 (depends on 9) The method of claim 9, further comprising: transmitting at least one symbol via physical downlink control channel (PDCCH) to the wireless communication device for activating or scheduling the uplink transmission, wherein the transmission power is determined based on both the time threshold and an ending time when the at least one symbol is received by the wireless communication device. ### Claim 11 (depends on 10) The method of claim 10, wherein: under a determination that the ending time is before the time threshold, the transmission power is determined no later than the time threshold; and under a determination that the ending time is not before the time threshold, the transmission power is determined immediately after receiving the at least one symbol. ### Claim 12 (depends on 9) The method of claim 9, wherein: the wireless communication device is in a first situation where the wireless communication device has an additional uplink transmission having an overlapping time-domain transmission resource with the uplink transmission, or in a second situation where the wireless communication device has no additional uplink transmission having an overlapping time-domain transmission resource with the uplink transmission; the wireless communication node is in a first cell group for a dual connection or multi-connection of the wireless communication device; and the additional uplink transmission is transmitted to a wireless communication node in a second cell group for the dual connection or multi-connection. ### Claim 13 (depends on 12) The method of claim 12, further comprising: transmitting a power modification indication to the wireless communication device, wherein: the power modification indication indicates whether and how to modify at least one parameter in downlink control information (DCI) activating or scheduling the uplink transmission; under a determination that the wireless communication device is in the second situation, the at least one parameter in the DCI is utilized for the uplink transmission without modification; and under a determination that the wireless communication device is in the first situation, the at least one parameter in the DCI is modified based on the power modification indication to generate at least one modified parameter, and the at least one modified parameter is utilized for the uplink transmission. ### Claim 14 A wireless communication device comprising a memory for storing computer instructions and a processor in communication with the memory, wherein, when the processor executes the computer instructions, the processor is configured to cause the wireless communication device to: determine a transmission power for an uplink transmission of the wireless communication device based at least partially on a time threshold associated with the uplink transmission, wherein the time threshold indicates a latest time the transmission power should be determined, and wherein the time threshold is determined with consideration of at least one of: whether the uplink transmission carries a hybrid automatic repeat request (HARQ) feedback; whether the uplink transmission carries a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH) scheduled or activated by a Physical Downlink Control Channel (PDCCH); or whether the uplink transmission carries an aperiodic Channel State Information (CSI) feedback; and perform the uplink transmission based on the transmission power to a wireless communication node. ### Claim 15 (depends on 14) The wireless communication device of claim 14, wherein the time threshold is determined based on one of: a semi-static configuration by the wireless communication node or based on a system pre-definition, or a type of the uplink transmission, and wherein the time threshold is related to a time delay for the wireless communication device to prepare the uplink transmission. ### Claim 16 (depends on 14) The wireless communication device of claim 14, wherein, when the processor executes the computer instructions, the processor is configured to further cause the wireless communication device to: receiving at least one symbol via physical downlink control channel (PDCCH) from the wireless communication node for activating or scheduling the uplink transmission, wherein the transmission power is determined based on both the time threshold and an ending time for receiving the at least one symbol. ### Claim 17 (depends on 16) The wireless communication device of claim 16, wherein: under a determination that the ending time is before the time threshold, the transmission power is determined no later than the time threshold; and under a determination that the ending time is not before the time threshold, the transmission power is determined immediately after receiving the at least one symbol. ### Claim 18 (depends on 1) A non-transitory computer readable storage medium storing instructions, wherein, when the instructions are executed by a processor in a device, the instructions are configured to cause the processor to implement a method of claim 1. ### Claim 19 (depends on 9) A non-transitory computer readable storage medium storing instructions, wherein, when the instructions are executed by a processor in a device, the instructions are configured to cause the processor to implement a method of claim 9. ### Claim 20 (depends on 9) A device comprising a memory for storing computer instructions and a processor in communication with the memory, wherein the processor, when executing the computer instructions, is configured to implement a method of claim 9.