# US 11,910,413 B2 · Traffic-aware channel state information feedback > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,413 B2 - Document ID: US11910413B2 - Status: Granted - Kind: B2 - Application number: 17/249,404 - Filed: 2021-03-01 - Published: 2021-09-09 - Granted: 2024-02-20 - Earliest claimed: 2020-03-04 - Assignees: QUALCOMM Incorporated - Applicants: Qualcomm Incorporated - Inventors: Jay Kumar Sundararajan; Prashanth Haridas Hande; Wanshi Chen; Yeliz Tokgoz; Naga Bhushan; Wei Yang - Web page: https://patentgrep.com/patent/US11910413B2 ## CPC - H04L 5/0092: {Indication of how the channel is divided} - H04W 72/52: based on load - H04L 1/0003: {by switching between different modulation schemes} - H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)} - H04L 1/0025: {Transmission of mode-switching indication} - H04L 1/0058: {Block-coded modulation} - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 72/542: using measured or perceived quality - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - 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) - H04B: TRANSMISSION ## Abstract Wireless communication devices, systems, and methods relate to selecting transmission parameters that optimize a dimension (e.g., time, frequency, and/or spatial) under a set of constraints. A UE may receive a resource allocation mode indication and a traffic parameter indication from a BS. The resource allocation mode indication informs the UE to optimize along a time dimension, a frequency dimension, and/or a spatial domain. The traffic parameter indication informs the UE what constraints to consider for the transmission parameters. The UE may use this information upon receipt of a reference signal in selecting transmission parameters based on the received reference signal, resource allocation mode indication, and traffic parameter indication. The resource allocation mode may correspond to optimization within a single slot or across multiple slots. Once selected, the UE may transmit the transmission parameters to the BS for use in sending the message to the UE. ## Claims ### Claim 1 A method of wireless communication, comprising: receiving, by a first wireless communications device, a resource allocation mode indication from a second wireless communications device, wherein the resource allocation mode indication identifies a maximum-payload mode, a minimum-resource block mode, a minimum-carrier mode, a minimum-rank mode, a maximum-reliability mode, a maximum-modulation and coding scheme (MCS) mode, or a maximum-spectral efficiency mode; receiving, by the first wireless communications device, a traffic parameter indication from the second wireless communications device that identifies one or more targets to meet in selecting a transmission parameter; selecting, by the first wireless communications device, the transmission parameter based on a reference signal, the resource allocation mode indication, and the traffic parameter indication; and transmitting, by the first wireless communications device, the transmission parameter to the second wireless communications device as part of a channel state feedback message. ### Claim 2 (depends on 1) The method of claim 1, wherein the resource allocation mode indication corresponds to a single time frame comprising a single slot. ### Claim 3 (depends on 2) The method of claim 2, wherein the resource allocation mode indication identifies the maximum-payload mode and the traffic parameter indicator identifies a reliability target, wherein the selecting further comprises: determining, by the first wireless communications device, a rank and modulation and coding scheme as the transmission parameter that maximizes a payload size subject to the reliability target. ### Claim 4 (depends on 2) The method of claim 2, wherein the resource allocation mode indication identifies the minimum-resource block mode and the traffic parameter indicator identifies a payload size target and a reliability target, wherein the selecting further comprises: determining, by the first wireless communications device, a set of resource blocks, a rank, and a modulation and coding scheme as the transmission parameter that minimizes a number of resource blocks selected subject to the payload size target and the reliability target. ### Claim 5 (depends on 2) The method of claim 2, wherein the resource allocation mode indication identifies the minimum-carrier mode and the traffic parameter indicator identifies a payload size target and a reliability target, wherein the selecting further comprises: determining, by the first wireless communications device, a set of component carriers as the transmission parameter that minimizes a number of component carriers selected subject to the payload size target and the reliability target. ### Claim 6 (depends on 2) The method of claim 2, wherein the resource allocation mode indication identifies the minimum-rank mode and the traffic parameter indicator identifies a payload size target and a reliability target, wherein the selecting further comprises: determining, by the first wireless communications device, a rank and modulation and coding scheme as the transmission parameter that minimizes a rank subject to the payload size target and the reliability target. ### Claim 7 (depends on 2) The method of claim 2, wherein the resource allocation mode indication identifies the maximum-reliability mode and the traffic parameter indicator identifies a payload size target, wherein the selecting further comprises: determining, by the first wireless communications device, a set of resource blocks, a rank, and a modulation and coding scheme as the transmission parameter that maximizes a reliability metric, subject to the payload size target. ### Claim 8 (depends on 1) The method of claim 1, wherein the traffic parameter indication identifies a payload size target, the method further comprising: determining, by the first wireless communications device, that transmission according to the payload size target is unobtainable within a single time frame; and transitioning, by the first wireless communications device in response to the determining, to a multi-slot mode, wherein the selecting is based on the multi-slot mode. ### Claim 9 (depends on 1) The method of claim 1, wherein the resource allocation mode indication and the traffic parameter indication are part of a downlink control information message. ### Claim 10 (depends on 1) The method of claim 1, wherein the first wireless communications device comprises a user equipment and the second wireless communications device comprises a base station. ### Claim 11 A method of wireless communication, comprising: transmitting, by a first wireless communications device, a resource allocation mode indication to a second wireless communications device, wherein the resource allocation mode identifies a maximum-payload mode, a minimum-resource block mode, a minimum-carrier mode, a minimum-rank mode, a maximum-reliability mode, a maximum-modulation and coding scheme (MCS) mode, or a maximum-spectral efficiency mode; transmitting, by the first wireless communications device, a traffic parameter indication to the second wireless communications device that identifies one or more targets to meet in selecting a transmission parameter; transmitting, by the first wireless communications device, a reference signal to the second wireless communications device; and receiving, by the first wireless communications device, the transmission parameter based on the reference signal, the resource allocation mode, and the traffic parameter indication, from the second wireless communications device. ### Claim 12 (depends on 11) The method of claim 11, wherein the resource allocation mode indication corresponds to a single time frame comprising a single slot. ### Claim 13 (depends on 12) The method of claim 12, wherein the resource allocation mode indication identifies the maximum-payload mode, the traffic parameter indicator identifies a reliability target, and the transmission parameter comprises a rank and modulation and coding scheme that maximizes a payload size subject to the reliability target. ### Claim 14 (depends on 12) The method of claim 12, wherein the resource allocation mode indication identifies the minimum-resource block mode, the traffic parameter indicator identifies a payload size target and a reliability target, and the transmission parameter comprises a set of resource blocks, a rank, and a modulation and coding scheme that minimizes a number of resource blocks selected subject to the payload size target and the reliability target. ### Claim 15 (depends on 12) The method of claim 12, wherein the resource allocation mode indication identifies the minimum-carrier mode, the traffic parameter indicator identifies a payload size target and a reliability target, and the transmission parameter comprises a set of component carriers as the transmission parameter that minimizes a number of component carriers selected subject to the payload size target and the reliability target. ### Claim 16 (depends on 12) The method of claim 12, wherein the resource allocation mode indication identifies the minimum-rank mode, the traffic parameter indicator identifies a payload size target and a reliability target, and the transmission parameter comprises a rank and modulation and coding scheme that minimizes a rank subject to the payload size target and the reliability target. ### Claim 17 (depends on 12) The method of claim 12, wherein the resource allocation mode indication identifies the maximum-reliability mode, the traffic parameter indicator identifies a payload size target, and the transmission parameter comprises a set of resource blocks, a rank, and a modulation and coding scheme that maximizes a reliability metric, subject to the payload size target. ### Claim 18 (depends on 11) The method of claim 11, wherein the traffic parameter indication identifies a payload size target, and the transmission parameter is further based on a determination that the payload size target is unobtainable within in a single time frame. ### Claim 19 (depends on 18) The method of claim 18, wherein the resource allocation mode indication identifies a minimum-transport block mode, the traffic parameter indicator identifies a payload size target and a reliability target, and the transmission parameter comprises a set of resource blocks, a rank, and a modulation and coding scheme for multiple transport blocks that minimizes a number of transport blocks, subject to the payload size target and the reliability target. ### Claim 20 (depends on 18) The method of claim 18, wherein the resource allocation mode indication identifies a minimum-delay mode, the traffic parameter indicator identifies a payload size target and a payload error rate target, and the transmission parameter comprises a set of resource blocks, a rank, and a modulation and coding scheme for multiple transport blocks that minimizes a number of slots used for transmissions, subject to the payload size target and the payload error rate target. ### Claim 21 (depends on 11) The method of claim 11, wherein the resource allocation mode indication and the traffic parameter indication are part of a downlink control information message. ### Claim 22 (depends on 11) The method of claim 11, wherein the first wireless communications device comprises a base station and the second wireless communications device comprises a user equipment. ### Claim 23 A wireless communications device, comprising: a transceiver configured to: receive a resource allocation mode indication from a second wireless communications device, wherein the resource allocation mode identifies a maximum-payload mode, a minimum-resource block mode, a minimum-carrier mode, a minimum-rank mode, a maximum-reliability mode, a maximum-modulation and coding scheme (MCS) mode, or a maximum-spectral efficiency mode; receive a traffic parameter indication from the second wireless communications device that identifies one or more targets to meet in selecting a transmission parameter; and transmit the transmission parameter to the second wireless communications device as part of a channel state feedback message; and a processor configured to: select the transmission parameter based on a reference signal, the resource allocation mode indication, and the traffic parameter indication. ### Claim 24 (depends on 23) The wireless communications device of claim 23, wherein the resource allocation mode indication corresponds to a single time frame comprising a single slot. ### Claim 25 (depends on 24) The wireless communications device of claim 24, wherein the resource allocation mode indication identifies the maximum-payload mode, the traffic parameter indicator identifies a reliability target, and the processor is configured to select the transmission parameter by: determining a rank and modulation and coding scheme as the transmission parameter that maximizes a payload size subject to the reliability target. ### Claim 26 (depends on 24) The wireless communications device of claim 24, wherein the resource allocation mode indication identifies the minimum-resource block mode, the traffic parameter indicator identifies a payload size target and a reliability target, and the processor is configured to select the transmission parameter by: determining a set of resource blocks, a rank, and a modulation and coding scheme as the transmission parameter that minimizes a number of resource blocks selected subject to the payload size target and the reliability target. ### Claim 27 A wireless communications device, comprising: a processor; and a transceiver configured to: transmit a resource allocation mode indication to a second wireless communications device, wherein the resource allocation mode identifies a maximum-payload mode, a minimum-resource block mode, a minimum-carrier mode, a minimum-rank mode, a maximum-reliability mode, a maximum-modulation and coding scheme (MCS) mode, or a maximum-spectral efficiency mode; transmit a traffic parameter indication to the second wireless communications device that identifies one or more targets to meet in selecting a transmission parameter; transmit a reference signal to the second wireless communications device; and receive the transmission parameter based on the reference signal, the resource allocation mode, and the traffic parameter indication, from the second wireless communications device. ### Claim 28 (depends on 27) The wireless communications device of claim 27, wherein the resource allocation mode indication corresponds to a single time frame comprising a single slot. ### Claim 29 (depends on 28) The wireless communications device of claim 28, wherein the resource allocation mode indication identifies the maximum-payload mode, the traffic parameter indicator identifies a reliability target, and the transmission parameter comprises a rank and modulation and coding scheme that maximizes a payload size subject to the reliability target. ### Claim 30 (depends on 28) The wireless communications device of claim 28, wherein the resource allocation mode indication identifies the minimum-resource block mode, the traffic parameter indicator identifies a payload size target and a reliability target, and the transmission parameter comprises a set of resource blocks, a rank, and a modulation and coding scheme that minimizes a number of resource blocks selected subject to the payload size target and the reliability target.