Abstract:
Embodiments include systems and methods for managing a tune away from a first network to a second network in a multi-subscription multi-standby communication device during an ongoing voice communication session on the first network. A device processor determine a timing of voice frames received from the first network. The device processor may perform a tune away to the second network at the beginning of a voice frame on the first network. In various embodiments, the device processor may use may use different tune-away patterns to reduce the impact of performing the tune away on the ongoing voice communication session.
Abstract:
Embodiments include systems and methods for managing tune away in a multi-subscription communication device. A processor of a multi-subscription communication device may determine a first throughput of a first carrier signal and a second throughput of a second carrier signal. The processor may perform a tune-away procedure to a carrier signal having a lower throughput from among the first carrier signal and the second carrier signal.
Abstract:
Embodiments include systems and methods for managing tune-way in a multi-subscription communication device. A processor of a multi-subscription communication device may determine a first signal strength of a first cell signal and a second signal strength of a second cell signal. The processor may perform a tune-away procedure to a weaker of the first cell signal and the second cell signal. Embodiments may include determining signal strengths of each component carrier of the first cell signal and the second cell signal.
Abstract:
Methods, systems and devices are provided for managing quad SIM functionality on a mobile device. The method includes maintaining a first subscription and a second subscription active in slotted idle states on a first RF chain on the mobile device. The first subscription being associated with a first SIM and the second subscription being associated with a second SIM. The method also includes maintaining a third subscription and a fourth subscription active in slotted idle states on a second RF chain on the mobile device. The third subscription being associated with a third SIM and the fourth subscription being associated with a fourth SIM. In the slotted idle states the first, second, third and fourth subscriptions are able to monitor pages in respective paging channel slots. Further, the method includes switching the third subscription to the first RF chain in response to the fourth subscription entering a dedicated traffic state.
Abstract:
Methods and apparatus for wireless communication are provided. In one aspect, an apparatus for wireless communication comprises a transmitter configured to transmit data at a first frequency on a first radio access technology. The apparatus comprises a receiver configured to receive data at the first frequency on the first radio access technology. The apparatus comprises a processor configured to tune the transmitter to the first frequency associated with the first radio access technology. The processor is configured to tune the receiver from the first frequency to a second frequency associated with a second radio access technology while the transmitter remains tuned to the first frequency associated with the first radio access technology. The processor is further configured erase data to be transmitted for the first radio access technology from at least one transmission channel slot when the first frequency and the second frequency satisfy a predetermined combination of frequencies.
Abstract:
Various embodiments include methods implemented on a mobile communication device for sharing network information among subscriptions when a first subscription is in a data communication session and a second subscription is in an idle mode. The methods may include determining whether the first subscription and the second subscription share a network operator and are camped on a same base station. If so, the first subscription may receive network information from the base station and store the network information in a shared memory of the mobile communication device that can be accessed by the second subscription. The second subscription may then perform some idle mode operations using the network information stored in the shared memory.
Abstract:
Various embodiments implemented on a mobile communication device provide methods for skipping power measurements of frequency bands included in a list of frequency bands received from a first subscription's network to conserve power and to increase the likelihood of avoiding a coexistence event between a first subscription and a second subscription. Specifically, a processor of the mobile communication device may order the list of frequency bands such that non-interfering frequency bands are ordered before interfering frequency bands. The processor may then take power measurements of frequency bands in the list, in order, until the processor determines that a power measurement has satisfied a minimum power threshold. In response to such a determination, the device processor may report the power measurement that satisfies the minimum power threshold to the first subscription's network and may not take any more power measurements of the remaining frequency bands in the list.
Abstract:
Aspects of the present disclosure relate to a multimode user equipment (UE) that when suffering a power crunch, can intelligently reselect to another RAT to extend the battery life of the UE. The reselected RAT has a lower specified maximum transmit power relative to the currently attached RAT. Therefore, the UE may reduce its battery drain to extend its service time per charge when a call is made utilizing the reselected RAT. The UE intelligently selects the RAT that will likely consume less uplink transmit power to communicate with a base station in order to conserve battery power in a poor coverage area, when the UE is experiencing a power crunch condition.
Abstract:
Methods and apparatus for wireless communication are provided. In one aspect, an apparatus for wireless communication comprises a transmitter configured to transmit data at a first frequency on a first radio access technology. The apparatus comprises a receiver configured to receive data at the first frequency on the first radio access technology. The apparatus comprises a processor configured to tune the transmitter to the first frequency associated with the first radio access technology. The processor is configured to tune the receiver from the first frequency to a second frequency associated with a second radio access technology while the transmitter remains tuned to the first frequency associated with the first radio access technology. The processor is further configured erase data to be transmitted for the first radio access technology from at least one transmission channel slot when the first frequency and the second frequency satisfy a predetermined combination of frequencies.
Abstract:
Methods, systems, and devices are described for system acquisition at a mobile device. A scan list including a plurality of entries may be stored at the mobile device. Each entry may include at least one connection parameter for connecting to a cellular system associated with the entry. A connection may be established with a target cellular system at the mobile device. A connection time with the target cellular system may be measured at the mobile device. A time-based entry including at least one connection parameter for the target cellular system may be added to the scan list based at least in part on the measured connection time with the target cellular system. Other aspects, embodiments, and features are also claimed and described.