# US 11,444,720 B2 · Wireless device transmit and receive capability in sidelink control information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,720 B2 - Document ID: US11444720B2 - Status: Granted - Kind: B2 - Application number: 16/843,804 - Filed: 2020-04-08 - Published: 2021-10-14 - Granted: 2022-09-13 - Earliest claimed: 2020-04-08 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Peer Berger; Shay Landis; Lior Uziel - Web page: https://patentgrep.com/patent/US11444720B2 ## CPC - H04L 1/0003: {by switching between different modulation schemes} - H04W 72/02: Selection of wireless resources by user or terminal - H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)} - H04L 1/0025: {Transmission of mode-switching indication} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04W 72/51: based on terminal or device properties - 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 Methods, systems, and devices for wireless communications are described. One or more UEs communicating over sidelink may indicate transmit and receive categories to other UEs. A first UE may receive, in a sidelink communication message, an indication of a receive category of a second wireless device. The first UE may then transmit a shared sidelink channel message to the second wireless device based on the receive category of the second wireless device. In another case, a first UE may receive, in a sidelink communication message, an indication of a transmit category of a second wireless device. The first wireless device may then compare the transmit category of the second wireless device with a receive category of the first wireless device. The first wireless device may determine whether to decode a shared sidelink channel message from the second UE based on the comparing. ## Claims ### Claim 1 A method for wireless communication at a first wireless device, comprising: receiving, in a sidelink communication message, an indication of a receive category of a second wireless device, the receive category indicating a receive parameter associated with a type or format of wireless communications capable of being received at the second wireless device; determining a segmentation, a modulation and coding scheme, and a resource block configuration of wireless communications capable of being received at the second wireless device based at least in part on the receive category and an algorithm, wherein the algorithm is based at least in part on a throughput calculation, a latency calculation, or a combination thereof; and transmitting a shared sidelink channel message to the second wireless device based at least in part on the receive category of the second wireless device, the segmentation, the modulation and coding scheme, and the resource block configuration. ### Claim 2 (depends on 1) The method of claim 1, wherein determining the segmentation, the modulation and coding scheme, and the resource block configuration comprises: determining the modulation and coding scheme and the resource block configuration that do not exceed the receive category of the second wireless device. ### Claim 3 (depends on 1) The method of claim 1, wherein the sidelink communication message comprises a physical sidelink control channel message. ### Claim 4 (depends on 3) The method of claim 3, wherein the sidelink communication message comprises a sidelink control information message. ### Claim 5 (depends on 1) The method of claim 1, wherein the receive parameter comprises a number of bits that the second wireless device is capable of receiving within a transmission time interval, wherein the number of bits is a number of sidelink shared channel transport block bits or a number of bits of a sidelink shared channel transport block. ### Claim 6 (depends on 1) The method of claim 1, wherein the receive parameter comprises a number of supported soft channel bits. ### Claim 7 (depends on 1) The method of claim 1, wherein the sidelink communication message comprises a broadcast message. ### Claim 8 A method for wireless communications at a first wireless device, comprising: receiving, in a sidelink communication message, an indication of a transmit category of a second wireless device, the transmit category indicating a transmit parameter of the second wireless device, wherein the transmit category indicates a variable transmit category based at least in part on a communication configuration, wherein the first wireless device is associated with a first radio access technology and a second radio access technology, and wherein the variable transmit category comprises a first transmit category associated with the first radio access technology and a second transmit category associated with the second radio access technology; determining, based at least in part on the indication, that the transmit parameter of the second wireless device is greater than a receive parameter of the first wireless device, wherein the receive parameter is based at least in part on a receive category of the first wireless device; receiving a shared sidelink channel message; and determining to refrain from decoding the shared sidelink channel message based at least in part on determining that the transmit parameter of the second wireless device is greater than the receive parameter of the first wireless device. ### Claim 9 (depends on 8) The method of claim 8, wherein the sidelink communication message comprises a physical sidelink control channel message. ### Claim 10 (depends on 9) The method of claim 9, wherein the sidelink communication message comprises a sidelink control information message. ### Claim 11 (depends on 8) The method of claim 8, wherein the receive parameter is a number of bits that the second wireless device is capable of receiving within a transmission time interval. ### Claim 12 (depends on 11) The method of claim 11, wherein the number of bits that the first wireless device is capable of receiving within a transmission time interval comprises a number of sidelink shared channel transport block bits the first wireless device is capable of receiving within a transmission time interval or a number of bits of a sidelink shared channel transport block the first wireless device is capable of receiving within a transmission time interval. ### Claim 13 (depends on 8) The method of claim 8, wherein the transmit parameter is a number of bits that the first wireless device is capable of transmitting within a transmission time interval. ### Claim 14 (depends on 13) The method of claim 13, wherein the number of bits is a number of transport block bits. ### Claim 15 (depends on 13) The method of claim 13, wherein the number of bits that the second wireless device is capable of transmitting within a transmission time interval comprises a number of sidelink shared channel transport block bits the second wireless device is capable of transmitting within a transmission time interval or a number of bits of a sidelink shared channel transport block the second wireless device is capable of transmitting within a transmission time interval. ### Claim 16 (depends on 8) The method of claim 8, wherein the receive parameter comprises a number of supported soft channel bits. ### Claim 17 (depends on 8) The method of claim 8, wherein the transmit parameter comprises a number of supported layers for spatial multiplexing by the second wireless device. ### Claim 18 (depends on 8) The method of claim 8, wherein the sidelink communication message comprises a broadcast message. ### Claim 19 A method for wireless communications at a first wireless device, comprising: receiving, in a sidelink communication message, an indication of a transmit category of a second wireless device, the transmit category indicating a transmit parameter of the second wireless device, wherein the transmit category indicates a variable transmit category based at least in part on a communication configuration, wherein the first wireless device is associated with a first radio access technology and a second radio access technology, and wherein the variable transmit category comprises a first transmit category associated with the first radio access technology and a second transmit category associated with the second radio access technology; determining, based at least in part on the indication, that the transmit parameter of the second wireless device is lower than or equal to a receive parameter of the first wireless device, wherein the receive parameter is based at least in part on a receive category of the first wireless device; receiving a shared sidelink channel message; and determining to decode the shared sidelink channel message based at least in part on determining that the transmit parameter of the second wireless device is lower than or equal to the receive parameter of the first wireless device. ### Claim 20 (depends on 19) The method of claim 19, wherein the receive parameter is a number of bits that the first wireless device is capable of receiving within a transmission time interval. ### Claim 21 (depends on 20) The method of claim 20, wherein the number of bits is a number of transport block bits. ### Claim 22 (depends on 20) The method of claim 20, wherein the number of bits that the first wireless device is capable of receiving within a transmission time interval comprises a number of sidelink shared channel transport block bits the first wireless device is capable of receiving within a transmission time interval or a number of bits of a sidelink shared channel transport block the first wireless device is capable of receiving within a transmission time interval. ### Claim 23 (depends on 22) The method of claim 22, further comprising: determining to decode the shared sidelink channel message based at least in part on the number of sidelink shared channel transport block bits the first wireless device is capable of receiving within a transmission time interval and the number of bits of a sidelink shared channel transport block the first wireless device is capable of receiving within a transmission time interval. ### Claim 24 (depends on 19) The method of claim 19, wherein the transmit parameter is a number of bits that the second wireless device is capable of transmitting within a transmission time interval. ### Claim 25 (depends on 24) The method of claim 24, wherein the number of bits that the second wireless device is capable of transmitting within a transmission time interval comprises a number of sidelink shared channel transport block bits the second wireless device is capable of transmitting within a transmission time interval or a number of bits of a sidelink shared channel transport block the second wireless device is capable of transmitting within a transmission time interval. ### Claim 26 (depends on 19) The method of claim 19, further comprising: decoding the shared sidelink channel message; and performing a reference signal power exclusion process or determining a code rate limit, or a combination thereof, based at least in part on the decoding. ### Claim 27 An apparatus for wireless communication at a first wireless device, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive, in a sidelink communication message, an indication of a receive category of a second wireless device, the receive category indicating a receive parameter associated with a type or format of wireless communications capable of being received at the second wireless device; determining a segmentation, a modulation and coding scheme, and a resource block configuration of wireless communications capable of being received at the second wireless device based at least in part on the receive category and an algorithm, wherein the algorithm is based at least in part on a throughput calculation, a latency calculation, or a combination thereof; and transmit a shared sidelink channel message to the second wireless device based at least in part on the receive category of the second wireless device, the segmentation, the modulation and coding scheme, and the resource block configuration.