Abstract: Embodiments include systems and methods for managing inter-radio access technology (IRAT) procedure concurrency between subscriptions on a multi-subscription multi-active communication device. A device processor may identify a higher-priority subscription and a lower-priority subscription on the multi-subscription multi-active communication device. The device processor may determine whether an IRAT procedure on the lower-priority subscription will overlap in time with an IRAT procedure on the higher-priority subscription. The device processor may calculate a deferral time period for the lower-priority subscription in response to determining that the IRAT procedure on the lower-priority subscription will overlap in time with the IRAT procedure on the higher-priority subscription.

Abstract: Methods and devices are disclosed for enabling improved scheduling of non-time bounded tasks across multiple subscriptions of a multi-subscription wireless communication device. A processor of the wireless communication device may determine whether the frequency utilized by a radio access technology (RAT) of a first subscription interferes with one or more frequencies utilized by RATs of other subscriptions. In response to determining that two or more of the subscriptions are non-interfering (i.e., RAT frequencies do not interfere) the processor may co-mingle non-time bounded tasks with time bounded tasks of the same subscription to produce consolidated task blocks. The task blocks may be temporal chunks of an execution queue in which tasks are scheduled continuously without interim idle periods. The processor may execute the first task block of each execution queue concurrently across subscriptions to reduce the amount of time that only a portion of the subscriptions are active or dormant.

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: 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: A throttling mechanism for downlink transmission control is disclosed, in which, in one aspect, a downlink low data-rate transmission may be received at a user equipment (UE). The UE may then measure a performance metric indicating performance of the downlink low data-rate transmission. The UE controls the downlink low data-rate transmission by dynamically adjusting the number of receiving antennas in use in response to comparison results of the performance metric and a threshold value.

Abstract: A method for performing tune away in a wireless communication device includes: tuning away the wireless communication device from a first communication network for a first tune away period to receive a first page burst from a second communication network, and during the first tune away period sequentially tuning to a plurality of neighbor cells of the second communication network and performing signal quality measurements on signals received from each of the plurality of neighbor cells.

Abstract: Methods and apparatus for wireless communication are provided. In one aspect, an apparatus for wireless communication comprises a processor configured to determine a time when the plurality of page bursts for the first radio access technology (RAT) will be received. The processor further configured to allocate a portion of time between page bursts for use by a second RAT.

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 provide methods implemented by a processor executing on a mobile communication device (e.g., a multi-SIM-multi-active communication device) to opportunistically schedule a victim subscription's power monitoring activities to occur during periods in which the aggressor subscription is already scheduled not to transmit, thereby reducing the amount of time the aggressor subscription must perform Tx blanking to accommodate the victim subscription's idle-standby-mode operations. Specifically, the victim subscription's monitoring activities may be scheduled to occur while the aggressor subscription is operating in a compressed mode. As a result, the overall throughput/performance of an aggressor subscription is improved as the aggressor experiences relatively fewer blanked transmissions without affecting the victim subscription's ability to perform power-monitoring operations.

Abstract: A mobile communication device, includes: a radio frequency (RF) receive chain; a control unit configured to tune the RF receive chain to receive signals from one of a first radio access technology (RAT) and a second RAT different from the first RAT; and a first signal modification unit configured to modify the signals received from the first RAT. The control unit is further configured to suspend operation of the first signal modification unit when the RF receive chain is tuned to receive signals on the second RAT.

Abstract: In overview, the various embodiments describe methods for configuring a nodeB to recognize tuneaway events and to operate in a manner that mitigates the adverse effects of user equipment (UE) tuneaways on network capacity. In the various embodiments, the nodeB may detect that a UE is periodically tuning away based on the periodic, characteristic nature of the drops in the UE's signal strength. When the nodeB recognizes that a UE is performing periodic tuneaways, the nodeB may implement various resource management strategies while the UE is in a tuneaway gap to minimize the impact of the UE's tuneaway gaps and may resume normal resource management operations when the UE is not in a tuneaway gap. Thus, the various embodiments enable the nodeB to determine and manage the effects of a UE's tuneaway gaps, thereby increasing network capacity, optimizing power management, and enhancing the overall user experience.

Abstract: A method for wireless communication is described. The method includes receiving a burst that includes controlled sequence symbols transmitted in a guard period. The controlled sequence symbols include the last predetermined number symbols of a training sequence. The burst is demodulated based on the controlled sequence symbols. Other aspects, embodiments, and features are also claimed and described.

Abstract: A method and apparatus of wireless communication are configured to capture, at a user equipment, one or more adjacent Universal Mobile Telecommunication System Terrestrial Radio Access Absolute Radio Frequency Channel Numbers (UARFCNs), extract a useful wide band signal from the one or more adjacent UARFCNs, perform a PSCH search on the useful wide band signal to obtain a composite PSCH signal, and reject the one or more UARFCNs where no peaks greater than a noise threshold are detected in the composite PSCH signal.

Abstract: A method for performing tune away in a wireless communication device includes: tuning away the wireless communication device from a first communication network for a first tune away period to receive a first page burst from a second communication network, and during the first tune away period sequentially tuning to a plurality of neighbor cells of the second communication network and performing signal quality measurements on signals received from each of the plurality of neighbor cells.

Abstract: Apparatus and methods for wireless communication in a wireless communication network include initiating a high speed downlink packet access (HSDPA) call to a user equipment (UE), applying a synchronization channel interference cancellation (SCHIC) algorithm to the HSDPA call, calculating synchronization channel (SCH) interference based on the application of the SCHICH algorithm to the HSDPA call, and eliminating the SCH interference from the HSDPA call.

Abstract: Methods and apparatus for wireless communication, in a mobile device, that includes receiving a signal from a network and obtaining pruned autocorrelation for specific channel delays of the received signal. Aspects of the methods and apparatus include determining pruned autocorrelation properties of the received signal. Aspects of the methods and apparatus also include comparing the pruned autocorrelation properties of the received signal against a reference threshold. Aspects of the methods and apparatus also include verifying that the received signal is a valid signal for WCMDA processing.

Abstract: Certain aspects of the present disclosure relate to a method and apparatus for improving connected mode search (e.g., by UE having at least two RF chains). According to aspects, the UE may dynamically configure based, at least in part, on at least one measured signal quality parameter, one of the first or second RF chains to perform a search procedure while the other RF chain communicates with the network. According to aspects, the UE may coordinate a search procedure during compressed mode gaps using both RF chains when a measured at least one signal quality parameter passes a first threshold for both RF chains, wherein a set of one or more carriers searched by the first RF chain is different than a set of one or more carriers searched by the second RF chain.

Abstract: In overview, the various embodiments describe methods for configuring a nodeB to recognize tuneaway events and to operate in a manner that mitigates the adverse effects of user equipment (UE) tuneaways on network capacity. In the various embodiments, the nodeB may detect that a UE is periodically tuning away based on the periodic, characteristic nature of the drops in the UE's signal strength. When the nodeB recognizes that a UE is performing periodic tuneaways, the nodeB may implement various resource management strategies while the UE is in a tuneaway gap to minimize the impact of the UE's tuneaway gaps and may resume normal resource management operations when the UE is not in a tuneaway gap. Thus, the various embodiments enable the nodeB to determine and manage the effects of a UE's tuneaway gaps, thereby increasing network capacity, optimizing power management, and enhancing the overall user experience.

Abstract: A method for wireless communication is described. The method includes receiving a burst that includes controlled sequence symbols transmitted in a guard period. The controlled sequence symbols include the last predetermined number symbols of a training sequence. The burst is demodulated based on the controlled sequence symbols. Other aspects, embodiments, and features are also claimed and described.

Abstract: Methods and apparatus for wireless communication in a wireless communication network that includes receiving a synchronization channel (SCH) signal (including a primary synchronization channel (PSCH) signal, a secondary synchronization channel (SSCH) signal, and a primary scrambling code (PCH) signal) and a part of a common pilot channel (CPICH) signal in the same portion of the slot of the frame. The aspects include determining and summing the PSCH signal, SSCH signal, and PCH signal corresponding to the portion of the slot of the frame. The aspects also include de-spreading the pilot symbol over the portion of the slot of the frame based on the summed PSCH signal, the SSCH signal, and the PCH signal and estimating an estimated pilot symbol for the portion of the slot of the frame, where the estimated pilot symbol is a sum of the de-spread PSCH signal, de-spread SSCH signal, and de-spread PCH signal.