Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may support multiple radio access technologies (RATs). The UE may communicate using both a Long Term Evolution (LTE) connection for control signaling and a New Radio (NR) connection for data signaling in a non-standalone (NSA) mode. However, if the UE uses a data rate below a threshold, the NR connection may be inefficient. To reduce processing overhead, the UE may fall back to using the LTE connection for data communications. For example, the UE may delay or abort adding an NR connection based on the data rate. In some examples, the UE may transmit a fake report or a fake uplink message to trigger dropping an NR connection. Additionally or alternatively, the UE may indicate a preferred mode of operation to the network indicating a preference for communicating data via an LTE connection.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may support multiple radio access technologies (RATs). The UE may communicate using both a Long Term Evolution (LTE) connection for control signaling and a New Radio (NR) connection for data signaling in a non-standalone (NSA) mode. However, if the UE uses a data rate below a threshold, the NR connection may be inefficient. To reduce processing overhead, the UE may fall back to using the LTE connection for data communications. For example, the UE may delay or abort adding an NR connection based on the data rate. In some examples, the UE may transmit a fake report or a fake uplink message to trigger dropping an NR connection. Additionally or alternatively, the UE may indicate a preferred mode of operation to the network indicating a preference for communicating data via an LTE connection.

Abstract: Embodiments include systems and methods for managing tune-aways in a multi-subscription multi-standby communication device. A device processor may determine whether the multi-subscription multi-standby communication device is conducting an active communication session on a first network. The device processor may determine whether broadcast channel data is received over a broadcast channel of a second network in response to determining the multi-subscription device is conducting the active communication session on the first network. The device processor may calculate a periodicity of the broadcast over the broadcast channel in response to determining that the broadcast channel data is received over the broadcast channel. The device processor may schedule one or more tune-aways to the broadcast channel based on the calculated periodicity of the broadcast of the broadcast, and the device processor may perform the one or more tune-aways from the first network to the broadcast channel of the second network.

Abstract: A method for prioritizing a mobile originated emergency call over mobile terminated call signaling, includes: initiating an emergency call on a first subscription; determining whether a mobile terminated (MT) call is incoming on a second subscription; in response to determining that the MT call is incoming on the second subscription, aborting the MT call signaling; determining whether the first subscription is out of service; and in response to determining that the first subscription is not out of service completing the emergency call on the first subscription.

Abstract: Embodiments described herein relate to apparatuses and methods for a wireless communication device having a first Subscriber Identity Module (SIM) associated with a first subscription and a second SIM associated with a second subscription to manage communications over the first subscription and the second subscription, including, but not limited to, determining valid paging occasions associated with the first subscription, determining a selected paging occasion of the valid paging occasions based on at least one of activities of the second subscription or a sleep period of the first subscription, and receiving a page of the first subscription on the selected paging occasion.

Abstract: Embodiments include systems and methods for managing tune-aways in a multi-subscription multi-standby communication device. A device processor may determine whether the multi-subscription multi-standby communication device is conducting an active communication session on a first network. The device processor may determine whether broadcast channel data is received over a broadcast channel of a second network in response to determining the multi-subscription device is conducting the active communication session on the first network. The device processor may calculate a periodicity of the broadcast over the broadcast channel in response to determining that the broadcast channel data is received over the broadcast channel. The device processor may schedule one or more tune-aways to the broadcast channel based on the calculated periodicity of the broadcast of the broadcast, and the device processor may perform the one or more tune-aways from the first network to the broadcast channel of the second network.

Abstract: Methods and devices are disclosed for enabling improved performance for page decodes on a SIM of a multi-SIM wireless communication device in which a shared radio frequency (RF) resource is used to read system information for a different SIM. After determining that a first SIM is using the shared RF resource to decode SIBs, the wireless device may receive information about an upcoming page decode time for monitoring a paging channel associated with the second SIM. The wireless device may obtain system information block (SIB) scheduling information associated with the first SIM, and may create a RF resource release gap during the system information read period based on the SIB scheduling information and the upcoming page decode time. Control of the RF resource may be released from the modem stack associated within the first SIM, and gained by a modem stack associated with the second SIM during the RF resource release gap.

Abstract: Methods and devices are disclosed for enabling improved performance for page decodes on a SIM of a multi-SIM wireless communication device in which a shared radio frequency (RF) resource is used to read system information for a different SIM. After determining that a first SIM is using the shared RF resource to decode SIBs, the wireless device may receive information about an upcoming page decode time for monitoring a paging channel associated with the second SIM. The wireless device may obtain system information block (SIB) scheduling information associated with the first SIM, and may create a RF resource release gap during the system information read period based on the SIB scheduling information and the upcoming page decode time. Control of the RF resource may be released from the modem stack associated within the first SIM, and gained by a modem stack associated with the second SIM during the RF resource release gap.