# US 12,193,014 B2 · Switching PUCCH parameters in response to channel conditions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,193,014 B2 - Document ID: US12193014B2 - Status: Granted - Kind: B2 - Application number: 17/454,882 - Filed: 2021-11-15 - Published: 2023-05-18 - Granted: 2025-01-07 - Earliest claimed: 2021-11-15 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Hemant Saggar; Iyab Issam Sakhnini; Tao Luo - Web page: https://patentgrep.com/patent/US12193014B2 ## CPC - H04L 1/1896: {ARQ related signaling} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1854: {Scheduling and prioritising arrangements} - H04W 72/1268: of uplink data flows - H04L 1/1671: {the supervisory signal being transmitted together with control information} - 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 Method and apparatus to updated PUCCH parameters in response to channel conditions. The apparatus transmits, to a UE, a configuration to update one or more PUCCH parameters. The apparatus identifies a change of channel conditions between the UE and the base station. The apparatus transmits, to the UE, an indication to update the one or more PUCCH parameters based at least on the change of the channel conditions. The apparatus communicates, with the UE, based on a PUCCH having the one or more PUCCH parameters updated. ## Claims ### Claim 1 An apparatus for wireless communication at a base station, comprising: memory; and at least one processor coupled to the memory and configured to: transmit, to a user equipment (UE), a configuration to update one or more physical uplink control channel (PUCCH) parameters; receive, from the UE, a request for an update of the one or more PUCCH parameters, wherein the request for the update of the one or more PUCCH is based at least on at least one of a downlink channel condition, a number of bits for transmission by the UE, or a coding requirement of the UE: transmit, to the UE, an indication to update the one or more PUCCH parameters based at least on the request; and communicate, with the UE, based on a PUCCH having the one or more PUCCH parameters updated. ### Claim 2 (depends on 1) The apparatus of claim 1, further comprising a transceiver coupled to the at least one processor. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters is further based on at least one of a number of bits transmitted by the UE, a coding requirement of the UE, or a channel condition seen by the UE. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters comprises at least one of a signaling capability of a PUCCH format, an encoding of data within the PUCCH, or a type of a PUCCH format. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein to transmit the indication, the at least one processor is configured to transmit the indication via downlink control information (DCI) or media access control (MAC) control element (CE) (MAC-CE). ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters comprises an addition to an existing PUCCH resource. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters comprises a change of at least one field in an existing PUCCH resource. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters comprises a selection of the one or more PUCCH parameters from a set of pre-configured PUCCH parameters. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters comprises a change of sequence parameters for the PUCCH. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the change of the sequence parameters comprises at least one of a change of a sequence, a change of a sampling function, or a change of a sampling factor, wherein the sampling function is used to select a sequence of a smaller length from an original sequence, and wherein the sampling factor corresponds to a ratio of an original sequence length to a sampled sequence length. ### Claim 11 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters comprises a change of a mode of encoding information in a PUCCH sequence. ### Claim 12 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters is for one or more uplink control information of the UE, wherein the uplink control information comprises at least one of a hybrid automatic repeat request (HARQ) acknowledgment (ACK)/negative ACK (NACK), a channel state feedback (CSF), or a scheduling request (SR). ### Claim 13 (depends on 1) The apparatus of claim 1, wherein the update of the one or more PUCCH parameters comprises a switch between non-coherent PUCCH and coherent PUCCH. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the update of PUCCH parameters comprises a change of a PUCCH resource used for transmission of channel quality indicator (CQI) report in uplink by the UE. ### Claim 15 (depends on 1) The apparatus of claim 1, wherein transmission of the indication to update the one or more PUCCH parameters is based on uplink conditions or downlink channel quality reports received from the UE. ### Claim 16 (depends on 1) The apparatus of claim 1, wherein the at least one processor is further configured to: determine to send the indication to update the one or more PUCCH parameters in response to the request. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein an update of the one or more PUCCH parameters comprises a preferred type of a PUCCH format. ### Claim 18 (depends on 16) The apparatus of claim 16, wherein the at least one processor is further configured to: transmit, to the UE, a request for at least one of an aperiodic or a periodic channel report, wherein an update of the one or more PUCCH parameters is based on the channel report received from the UE. ### Claim 19 (depends on 16) The apparatus of claim 16, wherein the at least one processor is further configured to: monitor for one or more uplink transmissions based on the updated PUCCH parameters, wherein an update of the one or more PUCCH parameters comprises a set of PUCCH parameters for selection by the UE. ### Claim 20 (depends on 1) The apparatus of claim 1, wherein the at least one processor is further configured to: allocate one or more PUCCH parameters for selection by the UE; and monitor for one or more uplink transmissions based on the one or more PUCCH parameters allocated for selection by the UE. ### Claim 21 A method of wireless communication at a base station, comprising: transmitting, to a user equipment (UE), a configuration to update one or more physical uplink control channel (PUCCH) parameters; receiving, from the UE, a request for an update of the one or more PUCCH parameters, wherein the request for the update of the one or more PUCCH is based at least on at least one of a downlink channel condition, a number of bits for transmission by the UE, or a coding requirement of the UE: transmitting, to the UE, an indication to update the one or more PUCCH parameters based at least on the request; and communicating, with the UE, based on a PUCCH having the one or more PUCCH parameters updated. ### Claim 22 (depends on 21) The method of claim 21, further comprising: receiving, from the UE, a request for updated PUCCH parameters; and determining to send the updated PUCCH parameters in response to the request. ### Claim 23 An apparatus for wireless communication at a user equipment (UE), comprising: memory; and at least one processor coupled to the memory and configured to: receive, from a base station, a configuration to update one or more physical uplink control channel (PUCCH) parameters; transmit, to the base station, a request for an update of the one or more PUCCH parameters, wherein the request for the update of the one or more PUCCH is based at least on at least one of a downlink channel condition, a number of bits for transmission by the UE, or a coding requirement of the UE: receive, from the base station, an indication to update the one or more PUCCH parameters based at least on the request; and communicate, with the base station, based on a PUCCH having the one or more PUCCH parameters updated. ### Claim 24 (depends on 23) The apparatus of claim 23, further comprising a transceiver coupled to the at least one processor. ### Claim 25 (depends on 23) The apparatus of claim 23, wherein the at least one processor is further configured to: receive, from the base station, a request for a channel report, wherein the update of the one or more PUCCH parameters is based on the channel report transmitted to the base station. ### Claim 26 (depends on 23) The apparatus of claim 23, wherein the update of the one or more PUCCH parameters comprises a set of PUCCH parameters, wherein the at least one processor is further configured to: select at least one PUCCH parameter of the set of PUCCH parameters within the update. ### Claim 27 A method of wireless communication at a user equipment (UE), comprising: receiving, from a base station, a configuration to update one or more physical uplink control channel (PUCCH) parameters; transmitting, to the base station, a request for an update of the one or more PUCCH parameters, wherein the request for the update of the one or more PUCCH is based at least on at least one of a downlink channel condition, a number of bits for transmission by the UE, or a coding requirement of the UE: receiving, from the base station, an indication to update the one or more PUCCH parameters based at least on the request; and communicating, with the base station, based on a PUCCH having the one or more PUCCH parameters updated.