# US 2025/0097948 A1 · Signaling uplink control information in lte-a > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0097948 A1 - Document ID: US20250097948A1 - Status: Published application - Kind: A1 - Application number: 18/961,053 - Filed: 2024-11-26 - Published: 2025-03-20 - Earliest claimed: 2009-06-19 - Assignees: InterDigital Patent Holdings, Inc. - Applicants: Interdigital Patent Holdings, Inc. - Inventors: Sung-Hyuk Shin; Pascal M. Adjakple; John W. Haim; Janet A. Stern-Berkowitz; Vincent Roy - Web page: https://patentgrep.com/patent/US20250097948A1 ## CPC - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L 1/0028: {Formatting} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/02: Selection of wireless resources by user or terminal - 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 and systems for transmitting uplink control information in an LTE Advanced system are disclosed. A user device may determine whether uplink control information and/or available channels meet certain criteria and determine whether the uplink control information should be transmitted on a physical uplink control channel, a physical uplink shared channel, or both, based on the criteria. Criteria may include the size of the uplink control information (absolute size or relative to space available on a channel or a threshold value), the type of control information bits, the number of available (i.e., active or configured) component carriers, and the amount of power that may be required to transmit the uplink control information on more than one channel. ## Claims ### Claim 1 A method for transmitting uplink control information comprising: determining that the uplink control information meets a criteria; and responsive to determining that the uplink control information meets the criteria, transmitting a first subset of uplink control information bits on a physical uplink control channel in a first subframe and transmitting a second subset of uplink control information bits on a physical uplink shared channel in the first subframe. ### Claim 2 (depends on 1) The method of claim 1, wherein determining that the uplink control information meets the criteria comprises determining that a number of uplink control information bits is above a first threshold. ### Claim 3 (depends on 2) The method of claim 2, further comprising determining that the number of uplink control information bits is below a second threshold. ### Claim 4 (depends on 1) The method of claim 1, wherein determining that the uplink control information meets the criteria comprises determining that a number of uplink control information bits will not fit in the physical uplink control channel. ### Claim 5 (depends on 1) The method of claim 1, wherein determining that the uplink control information meets the criteria comprises: determining a relative uplink control information payload size; and determining that the relative uplink control information payload size is less than a first threshold. ### Claim 6 (depends on 1) The method of claim 1, wherein determining that the uplink control information meets the criteria comprises determining that there is no user data to transmit and that a number of uplink control information bits will not fit in the physical uplink shared channel. ### Claim 7 (depends on 1) The method of claim 1, wherein determining that the uplink control information meets the criteria comprises determining that the uplink control information comprises at least one of acknowledgement bits and negative acknowledgement bits. ### Claim 8 (depends on 7) The method of claim 7, wherein the first subset of uplink control information bits comprises at least one of the acknowledgement bits and the negative acknowledgement bits and the second subset of uplink control information bits comprises all other uplink control information bits. ### Claim 9 (depends on 1) The method of claim 1, wherein determining that the uplink control information meets the criteria comprises determining that there is a single downlink component carrier. ### Claim 10 (depends on 9) The method of claim 9, further comprising determining that the uplink control information comprises at least one of each of a channel quality indicator bit, a precoding matrix indicator bit, and a rank indicator bit. ### Claim 11 A wireless transmit and receive unit configured to transmit uplink control information, comprising: a processor configured to: determine that the uplink control information meets a criteria, and responsive to determining that the uplink control information meets the criteria, determining a first subset of uplink control information bits and a second subset of uplink control information bits; and a transceiver configured to: transmit the first subset of uplink control information bits on a physical uplink control channel in a first subframe, and transmit the second subset of uplink control information bits on a physical uplink shared channel in the first subframe. ### Claim 12 (depends on 11) The wireless transmit and receive unit of claim 11, wherein the processor configured to determine that the uplink control information meets the criteria comprises the processor configured to determine that at least one uplink control information bit is associated with a primary downlink component carrier. ### Claim 13 (depends on 11) The wireless transmit and receive unit of claim 11, wherein the processor is further configured to determine that a power needed to transmit the first subset of uplink control information bits on the physical uplink control channel and transmit the second subset of uplink control information bits on the physical uplink shared channel is less than a maximum power threshold. ### Claim 14 (depends on 11) The wireless transmit and receive unit of claim 11, wherein the processor is further configured to: determine that a power needed to transmit the first subset of uplink control information bits on the physical uplink control channel and transmit the second subset of uplink control information bits on the physical uplink shared channel is greater than a maximum power threshold; and scale down at least one of a PUCCH power level and a PUSCH power level. ### Claim 15 (depends on 11) The wireless transmit and receive unit of claim 11, wherein the processor is further configured to select the physical uplink shared channel from a plurality of physical uplink shared channels. ### Claim 16 (depends on 15) The wireless transmit and receive unit of claim 15, wherein the processor is configured to select the physical uplink shared channel from the plurality of physical uplink shared channels based on an uplink control information payload size. ### Claim 17 (depends on 15) The wireless transmit and receive unit of claim 15, wherein the processor is configured to select the physical uplink shared channel from the plurality of physical uplink shared channels based on a relationship between an uplink control information payload size and at least one of a physical uplink shared channel data payload size and a physical uplink shared channel carrying capacity. ### Claim 18 (depends on 15) The wireless transmit and receive unit of claim 15, wherein the processor is configured to select the physical uplink shared channel from the plurality of physical uplink shared channels based on whether one of the plurality of physical uplink shared channels is on a primary uplink component carrier. ### Claim 19 (depends on 11) The wireless transmit and receive unit of claim 11, wherein the processor configured to determine that the uplink control information meets the criteria comprises the processor configured to determine that a number of downlink component carriers is one and that the uplink control information comprises at least one of each of a channel quality indicator bit, a precoding matrix indicator bit, and a rank indicator bit. ### Claim 20 (depends on 11) The wireless transmit and receive unit of claim 11, wherein the processor is further configured to: determine that the uplink control information comprises periodic report data and aperiodic report data; and discard the periodic report data.