# US 12,015,993 B2 · Dynamic modem partitioning techniques for multiple subscriber identification modules

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- Number: US 12,015,993 B2
- Document ID: US12015993B2
- Status: Granted
- Kind: B2
- Application number: 17/542,327
- Filed: 2021-12-03
- Published: 2023-06-08
- Granted: 2024-06-18
- Earliest claimed: 2021-12-03
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Mutaz Zuhier Afif Shukair; Qingxin Chen; Francis Ming-Meng Ngai; Reza Shahidi; Cheol Hee Park; Bhupesh Manoharlal Umatt
- Web page: https://patentgrep.com/patent/US12015993B2

## CPC

- H04W 60/005: {Multiple registrations, e.g. multihoming}
- H04W 8/183: {Processing at user equipment or user record carrier}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 76/15: Setup of multiple wireless link connections
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A user equipment (UE) may use multiple subscriber identification modules (SIMs) in dual-SIM dual-active (DSDA) communications. The A DSDA UE may support identification of a set of available radio frequency (RF) resources for communications, where the set of available RF resources include multiple RF components (e.g., transmit/receive antennas), RF baseband resources (e.g., processing resources that support processing and decoding of transmissions), or combinations thereof. The set of available resources may be shared between multiple SIMS, and the UE may identify different resource partitions of the set of available resources, with different resource partitions used to provide concurrent communications of both the first SIM and the second SIM based on parameters of each SIM.

## Claims

### Claim 1

A method for wireless communication at a user equipment (UE), comprising:
identifying a set of available resources for communications at the UE that include one or more baseband resources, one or more radio frequency components, or any combinations thereof, wherein the set of available resources are shared between a first subscriber identification module (SIM) and a second SIM;
determining a first resource partition of the set of available resources that includes a first subset of resources for a first communication using the first SIM and a second subset of resources for a second communication using the second SIM, wherein the first communication and the second communication are at least partially concurrent, and wherein the first resource partition is determined based at least in part on a type of service associated with each SIM, one or more communications parameters associated with each SIM, or any combinations thereof; and
transmitting a first indication of supported communication parameters of the first SIM to a first wireless node and a second indication of supported communication parameters of the second SIM to a second wireless node, wherein the first indication is based at least in part on the first subset of resources and the second indication is based at least in part on the second subset of resources, wherein each of the first indication of the supported communication parameters of the first SIM and the second indication of the supported communication parameters of the second SIM comprise one or more of a quantity of supported component carriers, a quantity of supported multiple-input multiple-output layers, a modulation and coding scheme index limit, a modulation scheme limit, or a throughput limit.

### Claim 2 (depends on 1)

The method of claim 1, wherein the one or more baseband resources include at least memory resources and computation resources for baseband processing that are shared between the first SIM and the second SIM.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
communicating with the first wireless node using the first SIM and with the second wireless node using the second SIM in accordance with the first resource partition;
determining, subsequent to the communicating, a second resource partition of the set of available resources that includes a third subset of resources for a third communication using the first SIM and fourth subset of resources for a fourth communication using the second SIM, the second resource partition based at least in part on one or more updates to the type of service associated with each SIM, the one or more communications parameters associated with each SIM, or any combinations thereof; and
transmitting a third indication of supported communication parameters of the first SIM to the first wireless node and a fourth indication of supported communication parameters of the second SIM to the second wireless node, wherein the third indication is based at least in part on the third subset of resources and the fourth indication is based at least in part on the fourth subset of resources.

### Claim 4 (depends on 1)

The method of claim 1, wherein the determining further comprises:
determining the first resource partition based at least in part on portions of the set of available resources that are compatible with communications of the first SIM and the second SIM, one or more power limits associated with the first SIM and the second SIM, one or more frequency bands used for communications of the first SIM and the second SIM, or any combinations thereof.

### Claim 5 (depends on 1)

The method of claim 1, wherein the determining further comprises:
determining the first resource partition based at least in part on a service priority of a highest priority service of each of the first SIM and the second SIM, an amount of data to be transferred for each of the first SIM and the second SIM, channel conditions associated with each of the first SIM and the second SIM, or any combinations thereof.

### Claim 6 (depends on 1)

The method of claim 1, wherein the first indication is transmitted in a first measurement report to the first wireless node and the second indication is transmitted in a second measurement report to the second wireless node, and wherein each of the first measurement report and the second measurement report provide one or more parameter measurements that generate wireless resource grants for each SIM that are in accordance with the first resource partition.

### Claim 7 (depends on 1)

The method of claim 1, wherein the first wireless node is a first serving cell of a first wireless communications system or a first access point of a first wireless local area network, and the second wireless node is a second serving cell of a second wireless communications system or a second access point of a second wireless local area network.

### Claim 8 (depends on 1)

The method of claim 1, wherein the determining is performed at a SIM arbitration function of the UE based at least in part on a requested data rate associated with each SIM and the set of available resources.

### Claim 9 (depends on 1)

The method of claim 1, wherein the first resource partition is further determined based at least in part on a location of one or more transmit antennas in the set of available resources, a number of receive antennas in the set of available resources, a number of transmit antennas in the set of available resources, a set of band combinations associated with each of the first SIM and the second SIM, or any combinations thereof.

### Claim 10 (depends on 1)

The method of claim 1, wherein the one or more baseband resources include one or more of a number of uplink component carriers that are supported by the UE for uplink carrier aggregation across both the first SIM and the second SIM, a number of downlink component carriers that are supported by the UE for downlink carrier aggregation across both the first SIM and the second SIM, a number of multiple-input multiple-output (MIMO) layers supported by the UE across both the first SIM and the second SIM, a maximum modulation order and coding rate supported by the UE across both the first SIM and the second SIM, a maximum throughput limit supported by the UE across both the first SIM and the second SIM, or any combinations thereof.

### Claim 11 (depends on 1)

The method of claim 1, wherein the first resource partition is further determined based at least in part on one or more of a combined power limit for communications across both the first SIM and the second SIM for a time period, a specific absorption rate (SAR) limit for communications of one or both the first SIM or the second SIM for the time period, a maximum permissible exposure (MPE) limit for communications for one or both the first SIM or the second SIM for the time period, or any combinations thereof.

### Claim 12 (depends on 1)

The method of claim 1, wherein the first resource partition is further determined based at least in part on a first set of frequency bands associated with communications of the first SIM, a second set of frequency bands associated with communications of the second SIM, a frequency range of one or more of the first set of frequency bands or the second set of frequency bands, or any combinations thereof.

### Claim 13 (depends on 1)

The method of claim 1, wherein the first resource partition is further determined based at least in part on one or more types of service associated with communications of the first SIM and the second SIM, wherein the one or more types of service include data services or voice services, and wherein data services are associated with different resources than voice services.

### Claim 14 (depends on 13)

The method of claim 13, wherein the first resource partition is further determined based at least in part on an amount of data in an uplink buffer of each of the SIM and the second SIM, a target data throughput associated with each of the first SIM and the second SIM, a priority associated with the one or more types of service associated with communications of the first SIM and the second SIM, or any combinations thereof.

### Claim 15 (depends on 1)

The method of claim 1, wherein the first resource partition is further determined based at least in part on one or more channel conditions associated with each of the first SIM and the second SIM, a network capability associated with each of the first SIM and the second SIM, or any combinations thereof.

### Claim 16 (depends on 1)

The method of claim 1, further comprising:
determining, for the first SIM based at least in part on the first resource partition, the first indication that provides one or more of a first number of supported component carriers (CCs), a first number of supported multiple-input multiple-output (MIMO) layers, a first modulation and coding scheme (MCS) limit, a first throughput limit, or any combinations thereof; and
determining, for the second SIM based at least in part on the first resource partition, the second indication that provides one or more of a second number of supported CCs, a second number of supported MIMO layers, a second MCS limit, a second throughput limit, or any combinations thereof.

### Claim 17 (depends on 1)

The method of claim 1, wherein the first indication includes one or more of a channel quality indicator (CQI) or a rank indicator (RI) for the first SIM, and wherein a reported CQI value or RI value is adjusted based at least in part on the first resource partition.

### Claim 18 (depends on 1)

The method of claim 1, wherein the transmitting further comprises:
transmitting UE assisted information (UAI) to one or more of the first wireless node or the second wireless node to adapt communications parameters in accordance with the first resource partition.

### Claim 19 (depends on 1)

The method of claim 1, wherein one or more connected mode or idle mode measurements of the first SIM are increased or decreased to adapt communications parameters of the first SIM in accordance with the first resource partition, and wherein corresponding measurements of the second SIM are adjusted in accordance with the measurements of the first SIM to achieve the first resource partition.

### Claim 20 (depends on 1)

The method of claim 1, further comprising:
selecting, for communications associated with the first SIM, a different serving wireless node based at least in part on the first resource partition; and
transmitting a request to the first wireless node to switch communications associated with the first SIM from the first wireless node to the different serving wireless node.

### Claim 21

A user equipment (UE) for wireless communication, comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to:
identify a set of available resources for communications at the UE that include one or more baseband resources, one or more radio frequency components, or any combinations thereof, wherein the set of available resources are shared between a first subscriber identification module (SIM) and a second SIM;
determine a first resource partition of the set of available resources that includes a first subset of resources for a first communication using the first SIM and a second subset of resources for a second communication using the second SIM, wherein the first communication and the second communication are at least partially concurrent, and wherein the first resource partition is determined based at least in part on a type of service associated with each SIM, one or more communications parameters associated with each SIM, or any combinations thereof; and
transmit a first indication of supported communication parameters of the first SIM to a first wireless node and a second indication of supported communication parameters of the second SIM to a second wireless node, wherein the first indication is based at least in part on the first subset of resources and the second indication is based at least in part on the second subset of resources, wherein each of the first indication of the supported communication parameters of the first SIM and the second indication of the supported communication parameters of the second SIM comprise one or more of a quantity of supported component carriers, a quantity of supported multiple-input multiple-output layers, a modulation and coding scheme index limit, a modulation scheme limit, or a throughput limit.

### Claim 22 (depends on 21)

The UE of claim 21, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:
communicate with the first wireless node using the first SIM and with the second wireless node using the second SIM in accordance with the first resource partition;
determine, subsequent to the communicating, a second resource partition of the set of available resources that includes a third subset of resources for a third communication using the first SIM and fourth subset of resources for a fourth communication using the second SIM, the second resource partition based at least in part on one or more updates to the type of service associated with each SIM, the one or more communications parameters associated with each SIM, or any combinations thereof; and
transmit a third indication of supported communication parameters of the first SIM to the first wireless node and a fourth indication of supported communication parameters of the second SIM to the second wireless node, wherein the third indication is based at least in part on the third subset of resources and the fourth indication is based at least in part on the fourth subset of resources.

### Claim 23 (depends on 21)

The UE of claim 21, wherein to determine the first resource partition, the one or more processors are individually or collectively operable to execute the code to cause the UE to:
determine the first resource partition based at least in part on portions of the set of available resources that are compatible with communications of the first SIM and the second SIM, one or more power limits associated with the first SIM and the second SIM, one or more frequency bands used for communications of the first SIM and the second SIM, or any combinations thereof.

### Claim 24 (depends on 21)

The UE of claim 21, wherein to determine the first resource partition, the one or more processors are individually or collectively operable to execute the code to cause the UE to:
determine the first resource partition based at least in part on a service priority of a highest priority service of each of the first SIM and the second SIM, an amount of data to be transferred for each of the first SIM and the second SIM, channel conditions associated with each of the first SIM and the second SIM, or any combinations thereof.

### Claim 25 (depends on 21)

The UE of claim 21, wherein the first indication is transmitted in a first measurement report to the first wireless node and the second indication is transmitted in a second measurement report to the second wireless node, and wherein each of the first measurement report and the second measurement report provide one or more parameter measurements that generate wireless resource grants for each SIM that are in accordance with the first resource partition.

### Claim 26

A user equipment (UE) for wireless communication, comprising:
means for identifying a set of available resources for communications at the UE that include one or more baseband resources, one or more radio frequency components, or any combinations thereof, wherein the set of available resources are shared between a first subscriber identification module (SIM) and a second SIM;
means for determining a first resource partition of the set of available resources that includes a first subset of resources for a first communication using the first SIM and a second subset of resources for a second communication using the second SIM, wherein the first communication and the second communication are at least partially concurrent and wherein the first resource partition is determined based at least in part on a type of service associated with each SIM, one or more communications parameters associated with each SIM, or any combinations thereof; and
means for transmitting a first indication of supported communication parameters of the first SIM to a first wireless node and a second indication of supported communication parameters of the second SIM to a second wireless node, wherein the first indication is based at least in part on the first subset of resources and the second indication is based at least in part on the second subset of resources, wherein each of the first indication of the supported communication parameters of the first SIM and the second indication of the supported communication parameters of the second SIM comprise one or more of a quantity of supported component carriers, a quantity of supported multiple-input multiple-output layers, a modulation and coding scheme index limit, a modulation scheme limit, or a throughput limit.

### Claim 27 (depends on 26)

The UE of claim 26, further comprising:
means for communicating with the first wireless node using the first SIM and with the second wireless node using the second SIM in accordance with the first resource partition;
means for determining, subsequent to the communicating, a second resource partition of the set of available resources that includes a third subset of resources for a third communication using the first SIM and fourth subset of resources for a fourth communication using the second SIM, the second resource partition based at least in part on one or more updates to the type of service associated with each SIM, the one or more communications parameters associated with each SIM, or any combinations thereof; and
means for transmitting a third indication of supported communication parameters of the first SIM to the first wireless node and a fourth indication of supported communication parameters of the second SIM to the second wireless node, wherein the third indication is based at least in part on the third subset of resources and the fourth indication is based at least in part on the fourth subset of resources.

### Claim 28 (depends on 26)

The UE of claim 26, wherein the means for the determining further comprise:
means for determining the first resource partition based at least in part on portions of the set of available resources that are compatible with communications of the first SIM and the second SIM, one or more power limits associated with the first SIM and the second SIM, one or more frequency bands used for communications of the first SIM and the second SIM, or any combinations thereof.

### Claim 29

A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to:
identify a set of available resources for communications at a user equipment (UE) that include one or more baseband resources, one or more radio frequency components, or any combinations thereof, wherein the set of available resources are shared between a first subscriber identification module (SIM) and a second SIM;
determine a first resource partition of the set of available resources that includes a first subset of resources for a first communication using the first SIM and a second subset of resources for a second communication using the second SIM, wherein the first communication and the second communication are at least partially concurrent, and wherein the first resource partition is determined based at least in part on a type of service associated with each SIM, one or more communications parameters associated with each SIM, or any combinations thereof; and
transmit a first indication of supported communication parameters of the first SIM to a first wireless node and a second indication of supported communication parameters of the second SIM to a second wireless node, wherein the first indication is based at least in part on the first subset of resources and the second indication is based at least in part on the second subset of resources, wherein each of the first indication of the supported communication parameters of the first SIM and the second indication of the supported communication parameters of the second SIM comprise one or more of a quantity of supported component carriers, a quantity of supported multiple-input multiple-output layers, a modulation and coding scheme index limit, a modulation scheme limit, or a throughput limit.

### Claim 30 (depends on 29)

The non-transitory computer-readable medium of claim 29, wherein the instructions are further executable by the one or more processors to:
communicate with the first wireless node using the first SIM and with the second wireless node using the second SIM in accordance with the first resource partition;
determine, subsequent to the communicating, a second resource partition of the set of available resources that includes a third subset of resources for a third communication using the first SIM and fourth subset of resources for a fourth communication using the second SIM, the second resource partition based at least in part on one or more updates to the type of service associated with each SIM, the one or more communications parameters associated with each SIM, or any combinations thereof; and
transmit a third indication of supported communication parameters of the first SIM to the first wireless node and a fourth indication of supported communication parameters of the second SIM to the second wireless node, wherein the third indication is based at least in part on the third subset of resources and the fourth indication is based at least in part on the fourth subset of resources.