Abstract: Various features related to reducing power consumption by devices during discovery periods D2D communication system, are described. In an aspect, a transmission pattern learning based intelligent monitoring approach is used. In certain configurations, an apparatus, e.g., a UE, may be configured to monitor, during a first set of discovery periods, transmissions of a plurality of different PACs associated with different applications, and identify PACs of interest from the plurality of different PACs. In some configurations, the apparatus maybe further configured to identify, based on the monitoring, transmission patterns of the PACs of interest, and monitor, during a second set of discovery periods, transmissions corresponding to the PACs of interest based on the identified transmission patterns. In some configurations, the PACs of interest monitored during the second set of discovery periods may be a subset of the plurality of different PACs monitored during the first set of discovery periods.

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques allow a user equipment (UE) to conserve power after transitioning from one coverage mode to another coverage mode based on power consumption estimates. The UE may make a determination on whether to modify its current extended discontinuous reception (eDRX) values by either triggering an unscheduled timing update or waiting for a scheduled timing update. For instance, the UE may estimate power consumption based on current eDRX values and the time remaining until a scheduled timing update procedure and compare this estimate to power consumption estimate based on modified eDRX values and the amount of power consumed to perform an unscheduled timing update procedure. Based on the comparison, the UE may update its eDRX values through an unscheduled TAU or through the regularly scheduled TAU procedure.

Abstract: Methods, systems, and devices are described for recovery from a connection disruption of a user equipment (UE) operating in a multi-carrier mode. The UE may establish a first connection with a primary cell and a second connection with a secondary cell while operating in the multi-carrier mode. A determination may be made that a disruption in the connection with the primary cell has occurred, and the UE may perform a connection reestablishment procedure to attempt to reestablish communications. The connection reestablishment routine may prioritize the secondary cell ahead of one or more other cells for attempting to reestablish communications. The prioritization may be based at least in part on the establishment of the second connection in the multi-carrier mode.

Abstract: A mobile device determines that a primary cell (PCell) and a secondary cell (SCell) belong to a same multicast-broadcast single frequency network (MBSFN) area or that the PCell and the SCell can broadcast the same service. The mobile device determines a communication state of the SCell. If the SCell is active, the mobile device compares signal quality on the PCell and the SCell and selects to decode broadcast content on the PCell or the SCell. If the communication state indicating the SCell is deactivated or released, the mobile device switches to decode the broadcast content on the PCell. If the SCell is released and if the mobile device determines that the PCell is also released, then the mobile device switches to decode the broadcast content on the PCell and initiates a neighbor cell search.

Abstract: Methods, systems, and devices are described for recovery from a connection disruption of a user equipment (UE) operating in a multi-carrier mode. The UE may establish a first connection with a primary cell and a second connection with a secondary cell while operating in the multi-carrier mode. A determination may be made that a disruption in the connection with the primary cell has occurred, and the UE may perform a connection reestablishment procedure to attempt to reestablish communications. The connection reestablishment routine may prioritize the secondary cell ahead of one or more other cells for attempting to reestablish communications. The prioritization may be based at least in part on the establishment of the second connection in the multi-carrier mode.