# US 12,015,579 B2 · Techniques for enhancing user equipment performance for multiple subscriber identification module operation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,579 B2 - Document ID: US12015579B2 - Status: Granted - Kind: B2 - Application number: 17/579,231 - Filed: 2022-01-19 - Published: 2022-07-28 - Granted: 2024-06-18 - Earliest claimed: 2021-01-25 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Sachin Jain; Rizwan Saudagar Mohammed; Bhupesh Manoharlal Umatt; Reza Shahidi - Web page: https://patentgrep.com/patent/US12015579B2 ## CPC - H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands} - H04W 72/02: Selection of wireless resources by user or terminal - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0041: {Frequency-non-contiguous} - H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority} - H04W 8/20: Transfer of user or subscriber data - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/56: based on priority criteria - H04W 8/183: {Processing at user equipment or user record carrier} - H04W 72/542: using measured or perceived quality - H04W 72/563: of the wireless resources - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - 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 communication at a user equipment (UE) are described. The UE may identify a first set of bands associated with a first subscription and a second set of bands associated with a second subscription. The UE may determine that at least a first band from the first set of bands and at least a second band from the second set of bands share a same set of radio frequency (RF) front-end resources. The UE may then refrain from communicating on a third band from the first set of bands while communicating on a remaining set of bands, where the third band may be associated with a secondary component carrier (SCC) of a multi-carrier communications scheme. Refraining from communicating on the third band may be based on the first and second bands sharing the RF front-end resources and the third band being associated with the SCC. ## Claims ### Claim 1 A method for wireless communication at a user equipment (UE), comprising: identifying a first set of bands associated with a first subscription; identifying a second set of bands associated with a second subscription different from the first subscription; determining that a first band from the first set of bands and a second band from the second set of bands share a set of radio frequency front-end resources; refraining from communicating on a third band from the first set of bands, the third band being associated with a secondary component carrier of a multi-carrier communications scheme, wherein refraining from communicating on the third band is based at least in part on determining that the first band and the second band share the set of radio frequency front-end resources and the third band being associated with the secondary component carrier; and communicating on a remaining set of bands from the first set of bands and the second set of bands based at least in part on refraining from communicating on the third band. ### Claim 2 (depends on 1) The method of claim 1, further comprising: determining that the third band is configured as the secondary component carrier; and determining an absence of control signaling activating the third band associated with the secondary component carrier, wherein refraining from communicating on the third band comprises dropping the third band based at least in part on the absence of the control signaling activating the third band associated with the secondary component carrier. ### Claim 3 (depends on 1) The method of claim 1, further comprising: receiving, from a base station, control signaling activating the third band associated with the secondary component carrier; and determining that the third band associated with the secondary component carrier and is activated based at least in part on receiving the control signaling. ### Claim 4 (depends on 3) The method of claim 3, wherein refraining from communicating on the third band comprises: dropping the third band associated with the secondary component carrier based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources and the third band being activated. ### Claim 5 (depends on 4) The method of claim 4, wherein refraining from communicating on the third band comprises: reporting a compensated measurement on the third band associated with the secondary component carrier based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources and the third band being activated, wherein the third band is dropped based at least in part on the reported compensated measurement. ### Claim 6 (depends on 4) The method of claim 4, further comprising: identifying a number of resource grants associated with the secondary component carrier based at least in part on the third band being activated, wherein the third band is dropped based at least in part on the identified number of resource grants associated with the secondary component carrier. ### Claim 7 (depends on 1) The method of claim 1, further comprising: deprioritizing the third band from the first set of bands based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources. ### Claim 8 (depends on 7) The method of claim 7, wherein deprioritizing the third band comprises: reporting a compensated measurement on the third band from the first set of bands based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources. ### Claim 9 (depends on 7) The method of claim 7, wherein deprioritizing the third band comprises: refraining from reporting a measurement on the third band from the first set of bands based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources. ### Claim 10 (depends on 1) The method of claim 1, wherein communicating on the remaining set of bands from the first set of bands comprises: simultaneously communicating on the remaining set of bands for the first subscription and the second set of bands for the second subscription based at least in part on refraining from communicating on the third band associated with the secondary component carrier. ### Claim 11 (depends on 1) The method of claim 1, wherein determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources comprises: determining that a combination of at least the first band, the second band, and the third band is associated with a full tune-away operation from the first subscription. ### Claim 12 A method for wireless communication at a user equipment (UE), comprising: identifying a first set of bands associated with a first subscription; identifying a second set of bands associated with a second subscription different from the first subscription; determining that a first band from the first set of bands and a second band from the second set of bands share a set of radio frequency front-end resources; and transmitting, to a base station, a capability report excluding the first band and a third band from the first set of bands based at least in part on determining that the first band and the second band share the set of radio frequency front-end resources, the third band being associated with a secondary component carrier of a multi-carrier communications scheme. ### Claim 13 (depends on 12) The method of claim 12, further comprising: identifying a plurality of combinations of bands from the first set of bands and the second set of bands for communicating with the base station, wherein a combination of the first band and the second band is included in the plurality of combinations. ### Claim 14 (depends on 13) The method of claim 13, wherein transmitting the capability report comprises: transmitting the capability report including a remaining number of combinations of the plurality of combinations of bands from the first set of bands and the second set of bands. ### Claim 15 (depends on 12) The method of claim 12, further comprising: refraining from communicating on the third band based at least in part on transmitting the capability report excluding the first band and the third band. ### Claim 16 An apparatus for wireless communication at 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: identify a first set of bands associated with a first subscription; identify a second set of bands associated with a second subscription different from the first subscription; determine that a first band from the first set of bands and a second band from the second set of bands share a set of radio frequency front-end resources; refrain from communicating on a third band from the first set of bands, the third band being associated with a secondary component carrier of a multi-carrier communications scheme, wherein refraining from communicating on the third band is based at least in part on determining that the first band and the second band share the set of radio frequency front-end resources and the third band being associated with the secondary component carrier; and communicate on a remaining set of bands from the first set of bands and the second set of bands based at least in part on refraining from communicating on the third band. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the instructions are further executable by the processor to cause the apparatus to: determine that the third band is configured as the secondary component carrier; and determine an absence of control signaling activating the third band associated with the secondary component carrier, wherein refraining from communicating on the third band comprises dropping the third band based at least in part on the absence of the control signaling activating the third band associated with the secondary component carrier. ### Claim 18 (depends on 16) The apparatus of claim 16, wherein the instructions are further executable by the processor to cause the apparatus to: receive, from a base station, control signaling activating the third band associated with the secondary component carrier; and determine that the third band associated with the secondary component carrier and is activated based at least in part on receiving the control signaling. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the instructions to refrain from communicating on the third band are executable by the processor to cause the apparatus to: drop the third band associated with the secondary component carrier based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources and the third band being activated. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the instructions to refrain from communicating on the third band are executable by the processor to cause the apparatus to: report a compensated measurement on the third band associated with the secondary component carrier based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources and the third band being activated, wherein the third band is dropped based at least in part on the reported compensated measurement. ### Claim 21 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: identify a number of resource grants associated with the secondary component carrier based at least in part on the third band being activated, wherein the third band is dropped based at least in part on the identified number of resource grants associated with the secondary component carrier. ### Claim 22 (depends on 16) The apparatus of claim 16, wherein the instructions are further executable by the processor to cause the apparatus to: deprioritize the third band from the first set of bands based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the instructions to deprioritize the third band are executable by the processor to cause the apparatus to: report a compensated measurement on the third band from the first set of bands based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources. ### Claim 24 (depends on 22) The apparatus of claim 22, wherein the instructions to deprioritize the third band are executable by the processor to cause the apparatus to: refrain from reporting a measurement on the third band from the first set of bands based at least in part on determining that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources. ### Claim 25 (depends on 16) The apparatus of claim 16, wherein the instructions for communicating on the remaining set of bands from the first set of bands are further executable by the processor to cause the apparatus to: simultaneously communicate on the remaining set of bands for the first subscription and the second set of bands for the second subscription based at least in part on refraining from communicating on the third band associated with the secondary component carrier. ### Claim 26 (depends on 16) The apparatus of claim 16, wherein the instructions to determine that the first band from the first set of bands and the second band from the second set of bands share the set of radio frequency front-end resources are executable by the processor to cause the apparatus to: determine that a combination of at least the first band, the second band, and the third band is associated with a full tune-away operation from the first subscription. ### Claim 27 An apparatus for wireless communication at 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: identify a first set of bands associated with a first subscription; identify a second set of bands associated with a second subscription different from the first subscription; determine that a first band from the first set of bands and a second band from the second set of bands share a set of radio frequency front-end resources; and transmit, to a base station, a capability report excluding the first band and a third band from the first set of bands based at least in part on determining that the first band and the second band share the set of radio frequency front-end resources, the third band being associated with a secondary component carrier of a multi-carrier communications scheme. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein the instructions are further executable by the processor to cause the apparatus to: identify a plurality of combinations of bands from the first set of bands and the second set of bands for communicating with the base station, wherein a combination of the first band and the second band is included in the plurality of combinations. ### Claim 29 (depends on 28) The apparatus of claim 28, wherein the instructions to transmit the capability report are executable by the processor to cause the apparatus to: transmit the capability report including a remaining number of combinations of the plurality of combinations of bands from the first set of bands and the second set of bands. ### Claim 30 (depends on 27) The apparatus of claim 27, wherein the instructions are further executable by the processor to cause the apparatus to: refrain from communicating on the third band based at least in part on transmitting the capability report excluding the first band and the third band.