Abstract: Various embodiments provide methods, devices, and non-transitory processor-readable storage media for reducing subscription reacquisition times in single radio long term evolution (SRLTE) communication devices. In various embodiments, a processor of the SRLTE communication device may calculate an expected pilot slew error in response to a radio frequency (RF) resource of the SRLTE communication device becoming available to a first subscription following a declared system loss of the first subscription. The processor may determine a dynamic search window size based at least in part on the expected pilot slew error. The processor may find a pilot signal using the dynamic search window size. Using the pilot signal determined in this manner the processor may reacquire a network associated with the first subscription.

Abstract: A stationary access terminal, such as a stationary remote sensor, capable of wireless communication with a network is provided. The access terminal obtains sector information associated with a wireless network node by establishing a communication link with the network node. The access terminal then stores the sector information in non-volatile memory, and later retrieves the sector information from the memory, for example, after a subsequent boot up or wake up event. The stored sector information is used by the access terminal to establish a subsequent communication link with the network node, and may include at least one of channel, band, and pseudo-random number sequence information. The access terminal may also store overhead messages received from the network node in the non-volatile memory. The stored overhead messages may later be retrieved to establish system operating parameters of the network node after the subsequent boot up or wake up event.

Abstract: The various embodiments include methods and apparatuses for avoiding interference scenarios during concurrent communication of dual-technology wireless communication devices. Interference scenarios may be avoided by predicatively determining the potential for interference between the channels of multiple communications on the dual-technology wireless communication devices. For a pending communication, a predicative calculation may be made to determine whether the channel of the pending communication and the channel of an active communication may interfere with each other. If so, the communication with a lower priority may switch to the highest powered channel that does not interfere with the higher priority communication. Once the interference condition expires, and the lower priority communication persists, its channel may switch to a higher power channel that will not cause interference with any active or pending communications.

Abstract: The various embodiments include methods and apparatuses for avoiding interference scenarios during concurrent communication of dual-technology wireless communication devices. Interference scenarios may be avoided by predicatively determining the potential for interference between the channels of multiple communications on the dual-technology wireless communication devices. For a pending communication, a predicative calculation may be made to determine whether the channel of the pending communication and the channel of an active communication may interfere with each other. If so, the communication with a lower priority may switch to the highest powered channel that does not interfere with the higher priority communication. Once the interference condition expires, and the lower priority communication persists, its channel may switch to a higher power channel that will not cause interference with any active or pending communications.

Abstract: Access terminals are adapted to facilitate power conservation by selectively powering down one or more hardware block when processing a general page message (GPM) received in slotted idle mode. An access terminal may include a processor core, a de-interleaver, a decoder and a firmware block. The firmware block may be adapted to enable the processor core to sleep while the firmware block collects samples of a received transmission and extracts symbols from the collected samples. The firmware block may further power ON the de-interleaver to de-interleave the extracted symbols, and the decoder to decode the de-interleaved symbols. Other aspects, embodiments, and features are also included.

Abstract: An apparatus, a method, and a computer program are disclosed, which can enable a wireless user equipment (UE) to reduce or avoid system losses, such as decode failures and the unavailability of page messages, which might otherwise result in a poor user experience. By way of example and not limitation, a UE may be configured to switch from a low-sensitivity receiver to a high-sensitivity receiver, or to a receive diversity configuration, when operating under poor channel conditions.

Abstract: An apparatus, a method, and a computer program are disclosed, which can enable a wireless user equipment (UE) to reduce or avoid system losses, such as decode failures and the unavailability of page messages, which might otherwise result in a poor user experience. By way of example and not limitation, a UE may be configured to switch from a low-sensitivity receiver to a high-sensitivity receiver, or to a receive diversity configuration, when operating under poor channel conditions.

Abstract: Aspects of the present disclosure are directed to an apparatus and methods capable of pre-correcting reacquisition slew of pilot signal timing when a mobile device operates in a slotted mode or discontinuous reception (DRX) mode. In one aspect, a mobile device is operated in slotted mode. The mobile device wakes up to perform a pilot reacquisition corresponding to a slotted mode and detects a slew of a pilot timing relative to a pilot reference timing. The mobile device adjusts a subsequent pilot reference timing by an amount corresponding to the detected slew, to be utilized during a subsequent wake-up cycle. The mobile device returns to a sleep state to wait for the subsequent wake-up cycle. Other aspects, embodiments, and features are also claimed and described.

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: Aspects of the present disclosure are directed to an apparatus and methods capable of pre-correcting reacquisition slew of pilot signal timing when a mobile device operates in a slotted mode or discontinuous reception (DRX) mode. In one aspect, a mobile device is operated in slotted mode. The mobile device wakes up to perform a pilot reacquisition corresponding to a slotted mode and detects a slew of a pilot timing relative to a pilot reference timing. The mobile device adjusts a subsequent pilot reference timing by an amount corresponding to the detected slew, to be utilized during a subsequent wake-up cycle. The mobile device returns to a sleep state to wait for the subsequent wake-up cycle. Other aspects, embodiments, and features are also claimed and described.

Abstract: Aspects of the present disclosure provide methods and apparatuses for improved throughput for network subscriptions in multi-SIM, multi-standby wireless devices by altering a tune away frequency to another network subscription based on throughput level or communication link parameters. For example, the present application provides a method of tune away in a wireless system, which includes initiating a data session via a first subscription in a multi-subscriber identity module, multi-standby user equipment, determining that a data rate associated with the data session is less than a threshold data rate value, establishing a modified tune away frequency based on the determining, and tuning a radio resource away to a second subscription based on the modified tune away frequency. Through such operation, throughput on an active subscription in such user equipment can be dynamically maximized.

Abstract: Access terminals are adapted to facilitate power conservation by selectively powering down one or more hardware block when processing a general page message (GPM) received in slotted idle mode. An access terminal may include a processor core, a de-interleaver, a decoder and a firmware block. The firmware block may be adapted to enable the processor core to sleep while the firmware block collects samples of a received transmission and extracts symbols from the collected samples. The firmware block may further power ON the de-interleaver to de-interleave the extracted symbols, and the decoder to decode the de-interleaved symbols. Other aspects, embodiments, and features are also included.

Abstract: A stationary access terminal, such as a stationary remote sensor, capable of wireless communication with a network is provided. The access terminal obtains sector information associated with a wireless network node by establishing a communication link with the network node. The access terminal then stores the sector information in non-volatile memory, and later retrieves the sector information from the memory, for example, after a subsequent boot up or wake up event. The stored sector information is used by the access terminal to establish a subsequent communication link with the network node, and may include at least one of channel, band, and pseudo-random number sequence information. The access terminal may also store overhead messages received from the network node in the non-volatile memory. The stored overhead messages may later be retrieved to establish system operating parameters of the network node after the subsequent boot up or wake up event.

Abstract: Aspects of the present disclosure provide methods and apparatuses for improved throughput for network subscriptions in multi-SIM, multi-standby wireless devices by altering a tune away frequency to another network subscription based on throughput level or communication link parameters. For example, the present application provides a method of tune away in a wireless system, which includes initiating a data session via a first subscription in a multi-subscriber identity module, multi-standby user equipment, determining that a data rate associated with the data session is less than a threshold data rate value, establishing a modified tune away frequency based on the determining, and tuning a radio resource away to a second subscription based on the modified tune away frequency. Through such operation, throughput on an active subscription in such user equipment can be dynamically maximized.

Abstract: Apparatus and methods of communicating with multiple subscriptions at a wireless device include tuning away from an active call of a first subscription during a tune away mode to communicate using a second subscription. The apparatus and methods further include performing a first tune away procedure using the second subscription during the tune away mode. Additionally, the apparatus and methods include determining whether one or more additional tune away procedures are to be performed during the tune away mode using the second subscription subsequent to the performing of the first tune away procedure. Moreover, the apparatus and methods include determining to limit performance of the one or more additional tune away procedures and ending the tune away mode and tuning back to using the first subscription for the active call based on the determination to limit the performance of the one or more additional tune away procedures.

Abstract: Systems, methods, and computer program products for dynamically selecting cell search parameters by a mobile device are discussed. In one aspect, a mobile device first acquires a first radio access network (RAN) cell using a first search window associated with the first RAN cell, and then determines to acquire a second RAN cell operating at least in part in the same region as the first RAN cell. The mobile device then selects a second search window for acquiring the second RAN cell. Particularly, mobile device determines if a pilot spacing parameter for the second RAN cell is known. If the pilot spacing parameter is known, the mobile device computes the second search window as a function of the pilot spacing parameter. If the pilot spacing parameter is unknown, the mobile device selects a default value for the second search window. Other aspects, embodiments, and features are also claimed and described.