Abstract: Various embodiments implemented on a multi-subscription-capable communication device (e.g., a mobile communication device capable of supporting more than one wireless subscription) enable a data connection for a blanked subscription to be kept alive during transmit (Tx) blanking by ensuring at least one Packet Data Traffic Channel (PDTCH) transmission is sent to the network before the network's counter for PDTCH transmissions expires.

Abstract: Various embodiments provide systems and methods for recovering from a stall on a mobile communication device. A mobile communication device may receive a data block from a network through a communications channel, where the data block has a block sequence number. The mobile communication may determine whether the block sequence number of the data block is within a receive window and increment a stall counter when the block sequence number is outside of the receive window. The mobile communication device may perform an abnormal release from the communications channel when the stall counter reaches a threshold.

Abstract: In a multi-subscription wireless communication device with a shared radio frequency (RF) resource supports an active data communication on a first network of a first SIM by performing tune-aways to support a subscription on a second SIM. After a tune-away of the shared RF to the second network, the wireless communication device may identify scheduled packet downlink acknowledgment/non-acknowledgment (ACK/NACK) message transmissions on the modem stack associated with the first SIM. The wireless communication device may determine whether a next scheduled packet downlink ACK/NACK (PDAN) message transmission to the first network is missed, and if so, increment a PDAN failure counter on the modem stack associated with the first SIM. If the value of the PDAN failure counter on the modem stack associated with the first SIM is equal to a preset threshold, the wireless communication device may force the shared RF resource to tune back to the first network.

Abstract: Various embodiments provide systems and methods for recovering from a stall on a mobile communication device. A mobile communication device may receive a data block from a network through a communications channel, where the data block has a block sequence number. The mobile communication may determine whether the block sequence number of the data block is within a receive window and increment a stall counter when the block sequence number is outside of the receive window. The mobile communication device may perform an abnormal release from the communications channel when the stall counter reaches a threshold.

Abstract: Various embodiments implemented on a multi-subscription-capable communication device (e.g., a mobile communication device capable of supporting more than one wireless subscription) enable a data connection for a blanked subscription to be kept alive during transmit (Tx) blanking by ensuring at least one Packet Data Traffic Channel (PDTCH) transmission is sent to the network before the network's counter for PDTCH transmissions expires.

Abstract: A method includes: determining a first protocol data unit (PDU) priority for a first PDU and a second PDU priority for a second PDU; tagging the first PDU with the first PDU priority and the second PDU with the second PDU priority; determining to transmit one of the first PDU and the second PDU based at least in part on the first PDU priority and the second PDU priority; and transmitting a one of the first PDU and the second PDU having a higher PDU priority.

Abstract: Access terminals are adapted to receive and transmit data during one or more frames in a multiframe. Power measurements for a neighboring cell can be scheduled during one or more frames not intended for power measurements. In some examples, the one or more frames not intended for power measurements can include an Idle frame and/or a Packet Timing Advance Control Channel (PTCCH) frame in a 52-frame multiframe structure, as well as an Idle frame and/or a Slow Associated Control Channel (SACCH) frame in a 26-frame multiframe structure. Some access terminals may be adapted for facilitating multiple subscriptions, and may operate at least substantially simultaneously in a Connected mode subscription and an Idle mode subscription. In such instances, a neighboring cell for which power measurements are performed may be associated with the Connected mode subscription and/or the Idle mode subscription. Other aspects, embodiments, and features are also claimed and described.

Abstract: Devices, systems, articles of manufacture, and methods scheduling subscription procedures on a wireless communication device are described. According to some embodiments, the wireless communication device communicates with a first subscription. The wireless communication device can perform a concurrent burst-level tune-away procedure with a second subscription. The wireless communication device also returns to communication with the first subscription. The tune-away procedure enables a communication device to interact with multiple subscriptions (e.g., multiple SIM-based subscriptions). Other aspects, embodiments, and features are also claimed and described.

Abstract: A method for performing cell reselection by a wireless communication device is described. The method includes monitoring one or more neighbor cells of a same radio access technology as a serving cell while camped on the serving cell. The method also includes determining that reselection criteria is met for a target cell. The method further includes starting a reselection timer for the target cell. The method additionally includes determining whether to perform reselection to the target cell based on a target cell signal to noise ratio (SNR) and a serving cell SNR.

Abstract: Wireless communications devices are adapted to perform retransmissions of data blocks. A wireless communications device can be adapted to transmit a plurality of data blocks to a receiving device. When the plurality of data blocks are transmitted, the wireless communications device can initiate a block timer associated with a round trip time for communications between the wireless communications device and the receiving device. When, prior to expiration of the block timer, a transmission is received with an indication that at least one data block was not successfully received, the wireless communications device can retransmit the unsuccessful data block. On retransmission, the block timer is restarted. If another transmission is received prior to expiration of the restarted block timer, the wireless communications device can ignore any indication of unsuccessful receipt associated with the retransmitted data block. Other aspects, embodiments, and features are also claimed and described.

Abstract: Apparatus and methods are disclosed to provide for a multi-SIM wireless user equipment configured for block-level, or slot-level tune-away operations enabling simultaneous communication with a plurality of channels. The first and second channels may correspond to different RANs, each of which the user equipment may subscribe to as corresponding to information in a plurality of SIMs at the user equipment. In other examples, the first and second channels may correspond to different cells within a single RAN. In either case, the tune-away operations disclosed provide for reduced data loss at the first channel and in some examples improved communication performance at the second channel. Other aspects, embodiments, and features are also claimed and described.

Abstract: Access terminals are adapted to facilitate data block decoding, where a header may be decoded while a data payload is not decoded. According to one example, an access terminal can convey information from an upper layer of a protocol stack to a physical layer of the protocol stack. The conveyed information can be adapted to cause the physical layer to bypass decoding a data payload for one or more received data blocks. On receipt of a data block, a header of the received data block can be decoded at the physical layer without decoding a data payload for the received data block. Other aspects, embodiments, and features are also included.

Abstract: Access terminals are adapted to employing a modulation and coding scheme for a data block in various circumstances. For instance, an access terminal may determine that there is a conflict with at least some transmission timeslots of a radio block on which a data block is to be transmitted. In response to the determined conflict, the access terminal can employ a modulation and coding scheme for the data block. In some instances, the modulation and coding scheme may be changed from a previously selected scheme in response to the conflict. In other instances, the modulation and coding scheme may be initially selected in response to the conflict. With the modulation and coding scheme employed, some of the RF bursts of the data block can be transmitted during transmission timeslots of the radio block that are not conflicted. Other aspects, embodiments, and features are also claimed and described.

Abstract: Devices, systems, articles of manufacture, and methods scheduling subscription procedures on a wireless communication device are described. According to some embodiments, a channel condition metric is obtained by the wireless communication device. The wireless communication device determines a number of uplink bursts to be transmitted at a non-reduced transmit power level based on the channel condition metric. The determined number uplink bursts are transmitted at the non-reduced transmit power level. Other aspects, embodiments, and features are also claimed and described.

Abstract: Wireless communications devices are adapted to perform retransmissions of data blocks. A wireless communications device can be adapted to transmit a plurality of data blocks to a receiving device. When the plurality of data blocks are transmitted, the wireless communications device can initiate a block timer associated with a round trip time for communications between the wireless communications device and the receiving device. When, prior to expiration of the block timer, a transmission is received with an indication that at least one data block was not successfully received, the wireless communications device can retransmit the unsuccessful data block. On retransmission, the block timer is restarted. If another transmission is received prior to expiration of the restarted block timer, the wireless communications device can ignore any indication of unsuccessful receipt associated with the retransmitted data block. Other aspects, embodiments, and features are also claimed and described.

Abstract: Apparatus and methods are disclosed to provide for a multi-SIM wireless user equipment configured for block-level, or slot-level tune-away operations enabling simultaneous communication with a plurality of channels. The first and second channels may correspond to different RANs, each of which the user equipment may subscribe to as corresponding to information in a plurality of SIMs at the user equipment. In other examples, the first and second channels may correspond to different cells within a single RAN. In either case, the tune-away operations disclosed provide for reduced data loss at the first channel and in some examples improved communication performance at the second channel. Other aspects, embodiments, and features are also claimed and described.

Abstract: Devices, systems, articles of manufacture, and methods scheduling subscription procedures on a wireless communication device are described. According to some embodiments, the wireless communication device communicates with a first subscription. The wireless communication device can perform a concurrent burst-level tune-away procedure with a second subscription. The wireless communication device also returns to communication with the first subscription. The tune-away procedure enables a communication device to interact with multiple subscriptions (e.g., multiple SIM-based subscriptions). Other aspects, embodiments, and features are also claimed and described.

Abstract: Access terminals are adapted to receive and transmit data during one or more frames in a multiframe. Power measurements for a neighboring cell can be scheduled during one or more frames not intended for power measurements. In some examples, the one or more frames not intended for power measurements can include an Idle frame and/or a Packet Timing Advance Control Channel (PTCCH) frame in a 52-frame multiframe structure, as well as an Idle frame and/or a Slow Associated Control Channel (SACCH) frame in a 26-frame multiframe structure. Some access terminals may be adapted for facilitating multiple subscriptions, and may operate at least substantially simultaneously in a Connected mode subscription and an Idle mode subscription. In such instances, a neighboring cell for which power measurements are performed may be associated with the Connected mode subscription and/or the Idle mode subscription. Other aspects, embodiments, and features are also claimed and described.

Abstract: Access terminals are adapted to employing a modulation and coding scheme for a data block in various circumstances. For instance, an access terminal may determine that there is a conflict with at least some transmission timeslots of a radio block on which a data block is to be transmitted. In response to the determined conflict, the access terminal can employ a modulation and coding scheme for the data block. In some instances, the modulation and coding scheme may be changed from a previously selected scheme in response to the conflict. In other instances, the modulation and coding scheme may be initially selected in response to the conflict. With the modulation and coding scheme employed, some of the RF bursts of the data block can be transmitted during transmission timeslots of the radio block that are not conflicted. Other aspects, embodiments, and features are also claimed and described.