# US 11,452,107 B2 · Low overhead component carrier selection for multi-component carrier communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,452,107 B2 - Document ID: US11452107B2 - Status: Granted - Kind: B2 - Application number: 16/891,560 - Filed: 2020-06-03 - Published: 2021-01-28 - Granted: 2022-09-20 - Earliest claimed: 2019-07-22 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Yan Zhou; Tao Luo; Xiaoxia Zhang; Hamed Pezeshki; Konstantinos Dimou; Rajat Prakash; Vinay Joseph; Sony Akkarakaran; Kazuki Takeda - Web page: https://patentgrep.com/patent/US11452107B2 ## CPC - H04W 72/53: based on regulatory allocation policies - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0096: {Indication of changes in allocation} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04L 1/1896: {ARQ related signaling} - 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, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling configuring the UE with a plurality of component carriers (CCs) for communicating with a base station and a semi-persistent resource allocation of a resource for each CC of the plurality of CCs. The UE may identify an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each CC of the plurality of CCs. The UE may communicate a data transmission via at least a subset of the plurality of CCs based at least in part on the availability indicator. ## Claims ### Claim 1 A method for wireless communications by a user equipment (UE), comprising: receiving control signaling configuring the UE with a plurality of component carriers for communicating with a network device and a semi-persistent resource allocation of a resource for each component carrier of the plurality of component carriers; identifying an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and communicating a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator. ### Claim 2 (depends on 1) The method of claim 1, wherein the time window begins at an end of a transmission identifying the availability indicator. ### Claim 3 (depends on 1) The method of claim 1, wherein identifying the availability indicator comprises: receiving downlink control information comprising the availability indicator. ### Claim 4 (depends on 1) The method of claim 1, wherein identifying the availability indicator comprises: receiving the availability indicator as a bit map that indicates the availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers. ### Claim 5 (depends on 1) The method of claim 1, wherein identifying the availability indicator comprises: receiving the availability indicator that indicates the resource is unavailable for a first component carrier of the plurality of component carriers and that indicates the resource is available for a second component carrier of the plurality of component carriers. ### Claim 6 (depends on 1) The method of claim 1, wherein identifying the availability indicator comprises: receiving the availability indicator via a single component carrier of the plurality of component carriers. ### Claim 7 (depends on 1) The method of claim 1, wherein identifying the availability indicator comprises: receiving the availability indicator via two or more component carriers of the plurality of component carriers. ### Claim 8 (depends on 1) The method of claim 1, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for an uplink transmission. ### Claim 9 (depends on 1) The method of claim 1, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for a downlink transmission. ### Claim 10 (depends on 1) The method of claim 1, wherein identifying the availability indicator comprises: determining that a retransmission is scheduled on a first component carrier of the plurality of component carriers, wherein the availability indicator is identified to indicate that the resource is available for communicating the data transmission via the first component carrier based at least in part on determining that the retransmission is scheduled on the first component carrier. ### Claim 11 (depends on 10) The method of claim 10, wherein determining that the retransmission is scheduled comprises: determining that the retransmission is scheduled based at least in part on at least one of a scrambling of downlink control information by a configured scheduling radio network temporary identifier, a toggling state of a new data indicator, a scheduling of a hybrid automatic repeat request process identifier, or any combination thereof. ### Claim 12 (depends on 10) The method of claim 10, wherein at least one parameter of the semi-persistent resource allocation is updated by a corresponding parameter indicated in downlink control information that schedules the retransmission. ### Claim 13 (depends on 12) The method of claim 12, wherein the at least one parameter comprises a number of resource blocks. ### Claim 14 (depends on 1) The method of claim 1, wherein identifying the availability indicator comprises: determining a retransmission is not scheduled for a first component carrier of the plurality of component carriers, wherein the availability indicator is identified to indicate that the resource is not available for communicating the data transmission via the first component carrier based at least in part on determining that the retransmission is not scheduled. ### Claim 15 (depends on 1) The method of claim 1, wherein each time interval comprises a subframe. ### Claim 16 (depends on 1) The method of claim 1, wherein the availability indicator indicates a respective number of time intervals within the time window for each component carrier of the plurality of component carriers. ### Claim 17 (depends on 1) The method of claim 1, further comprising: identifying a default availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers; and communicating, after the time window, a second data transmission via at least a second subset of the plurality of component carriers based at least in part on the default availability. ### Claim 18 (depends on 17) The method of claim 17, further comprising: receiving second control signaling indicating the default availability, wherein identifying the default availability is based at least in part on the control signaling. ### Claim 19 A method for wireless communications by a network device, comprising: transmitting control signaling configuring a user equipment (UE) with a plurality of component carriers for communicating with the network device and a semi-persistent resource allocation of a resource; transmitting an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and communicating a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator. ### Claim 20 (depends on 19) The method of claim 19, wherein the time window begins at an end of transmission of the availability indicator. ### Claim 21 (depends on 19) The method of claim 19, wherein transmitting the availability indicator comprises: transmitting downlink control information comprising the availability indicator. ### Claim 22 (depends on 19) The method of claim 19, wherein transmitting the availability indicator comprises: transmitting the availability indicator as a bit map that indicates the availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers. ### Claim 23 (depends on 19) The method of claim 19, wherein transmitting the availability indicator comprises: transmitting the availability indicator that indicates the resource is unavailable for a first component carrier of the plurality of component carriers and that indicates the resource is available for a second component carrier of the plurality of component carriers. ### Claim 24 (depends on 19) The method of claim 19, wherein transmitting the availability indicator comprises: transmitting the availability indicator via a single component carrier of the plurality of component carriers. ### Claim 25 (depends on 19) The method of claim 19, wherein transmitting the availability indicator comprises: transmitting the availability indicator via two or more component carriers of the plurality of component carriers. ### Claim 26 (depends on 19) The method of claim 19, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for an uplink transmission. ### Claim 27 (depends on 19) The method of claim 19, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for a downlink transmission. ### Claim 28 (depends on 19) The method of claim 19, further comprising: transmitting downlink control information that updates at least one parameter of the semi-persistent resource allocation. ### Claim 29 (depends on 19) The method of claim 19, further comprising: transmitting downlink control information that schedules a retransmission of the data transmission. ### Claim 30 An apparatus for wireless communications by a user equipment (UE), 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 control signaling configuring the UE with a plurality of component carriers for communicating with a network device and a semi-persistent resource allocation of a resource for each component carrier of the plurality of component carriers; identify an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and communicate a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator. ### Claim 31 (depends on 30) The apparatus of claim 30, wherein the time window begins at an end of a transmission identifying the availability indicator. ### Claim 32 (depends on 30) The apparatus of claim 30, wherein the instructions to identify the availability indicator are executable by the processor to cause the apparatus to: receive downlink control information comprising the availability indicator. ### Claim 33 (depends on 30) The apparatus of claim 30, wherein the instructions to identify the availability indicator are executable by the processor to cause the apparatus to: receive the availability indicator as a bit map that indicates the availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers. ### Claim 34 (depends on 30) The apparatus of claim 30, wherein the instructions to identify the availability indicator are executable by the processor to cause the apparatus to: receive the availability indicator that indicates the resource is unavailable for a first component carrier of the plurality of component carriers and that indicates the resource is available for a second component carrier of the plurality of component carriers. ### Claim 35 (depends on 30) The apparatus of claim 30, wherein the instructions to identify the availability indicator are executable by the processor to cause the apparatus to: receive the availability indicator via a single component carrier of the plurality of component carriers. ### Claim 36 (depends on 30) The apparatus of claim 30, wherein the instructions to identify the availability indicator are executable by the processor to cause the apparatus to: receive the availability indicator via two or more component carriers of the plurality of component carriers. ### Claim 37 (depends on 30) The apparatus of claim 30, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for an uplink transmission. ### Claim 38 (depends on 30) The apparatus of claim 30, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for a downlink transmission. ### Claim 39 (depends on 30) The apparatus of claim 30, wherein the instructions to identify the availability indicator are executable by the processor to cause the apparatus to: determine that a retransmission is scheduled on a first component carrier of the plurality of component carriers, wherein the availability indicator is identified to indicate that the resource is available for communicating the data transmission via the first component carrier based at least in part on determining that the retransmission is scheduled on the first component carrier. ### Claim 40 (depends on 39) The apparatus of claim 39, wherein the instructions to determine that the retransmission is scheduled are executable by the processor to cause the apparatus to: determine that the retransmission is scheduled based at least in part on at least one of a scrambling of downlink control information by a configured scheduling radio network temporary identifier, a toggling state of a new data indicator, a scheduling of a hybrid automatic repeat request process identifier, or any combination thereof. ### Claim 41 (depends on 39) The apparatus of claim 39, wherein at least one parameter of the semi-persistent resource allocation is updated by a corresponding parameter indicated in downlink control information that schedules the retransmission. ### Claim 42 (depends on 41) The apparatus of claim 41, wherein the at least one parameter comprises a number of resource blocks. ### Claim 43 (depends on 30) The apparatus of claim 30, wherein the instructions to identify the availability indicator are executable by the processor to cause the apparatus to: determine a retransmission is not scheduled for a first component carrier of the plurality of component carriers, wherein the availability indicator is identified to indicate that the resource is not available for communicating the data transmission via the first component carrier based at least in part on determining that the retransmission is not scheduled. ### Claim 44 An apparatus for wireless communications by a network 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: transmit control signaling configuring a user equipment (UE) with a plurality of component carriers for communicating with the network device and a semi-persistent resource allocation of a resource; transmit an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and communicate a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator. ### Claim 45 (depends on 44) The apparatus of claim 44, wherein the time window begins at an end of transmission of the availability indicator. ### Claim 46 (depends on 44) The apparatus of claim 44, wherein the instructions to transmit the availability indicator are executable by the processor to cause the apparatus to: transmit downlink control information comprising the availability indicator. ### Claim 47 (depends on 44) The apparatus of claim 44, wherein the instructions to transmit the availability indicator are executable by the processor to cause the apparatus to: transmit the availability indicator as a bit map that indicates the availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers. ### Claim 48 (depends on 44) The apparatus of claim 44, wherein the instructions to transmit the availability indicator are executable by the processor to cause the apparatus to: transmit the availability indicator that indicates the resource is unavailable for a first component carrier of the plurality of component carriers and that indicates the resource is available for a second component carrier of the plurality of component carriers. ### Claim 49 (depends on 44) The apparatus of claim 44, wherein the instructions to transmit the availability indicator are executable by the processor to cause the apparatus to: transmit the availability indicator via a single component carrier of the plurality of component carriers. ### Claim 50 (depends on 44) The apparatus of claim 44, wherein the instructions to transmit the availability indicator are executable by the processor to cause the apparatus to: transmit the availability indicator via two or more component carriers of the plurality of component carriers. ### Claim 51 (depends on 44) The apparatus of claim 44, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for an uplink transmission. ### Claim 52 (depends on 44) The apparatus of claim 44, wherein the semi-persistent resource allocation comprises resources configured for a configured grant for a downlink transmission. ### Claim 53 (depends on 44) The apparatus of claim 44, wherein the instructions are further executable by the processor to cause the apparatus to: transmit downlink control information that updates at least one parameter of semi-persistent resource allocation. ### Claim 54 (depends on 44) The apparatus of claim 44, wherein the instructions are further executable by the processor to cause the apparatus to: transmit downlink control information that schedules a retransmission of the data transmission. ### Claim 55 An apparatus for wireless communications by a user equipment (UE), comprising: means for receiving control signaling configuring the UE with a plurality of component carriers for communicating with a network device and a semi-persistent resource allocation of a resource for each component carrier of the plurality of component carriers; means for identifying an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and means for communicating a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator. ### Claim 56 An apparatus for wireless communications by a network device, comprising: means for transmitting control signaling configuring a user equipment (UE) with a plurality of component carriers for communicating with the network device and a semi-persistent resource allocation of a resource; means for transmitting an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and means for communicating a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator. ### Claim 57 A non-transitory computer-readable medium storing code for wireless communications by a user equipment (UE), the code comprising instructions executable by a processor to: receive control signaling configuring the UE with a plurality of component carriers for communicating with a network device and a semi-persistent resource allocation of a resource for each component carrier of the plurality of component carriers; identify an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and communicate a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator. ### Claim 58 A non-transitory computer-readable medium storing code for wireless communications by a network device, the code comprising instructions executable by a processor to: transmit control signaling configuring a user equipment (UE) with a plurality of component carriers for communicating with the network device and a semi-persistent resource allocation of a resource; transmit an availability indicator that indicates availability of the resource of the semi-persistent resource allocation on each component carrier of the plurality of component carriers, wherein the availability indicator indicates a number of time intervals within a time window for which the availability indicator is valid; and communicate a data transmission via at least a subset of the plurality of component carriers based at least in part on the availability indicator.