Redirection of a session initiation protocol invite

    公开(公告)号:US10142432B2

    公开(公告)日:2018-11-27

    申请号:US15427829

    申请日:2017-02-08

    Abstract: Methods, systems, and devices for wireless communication are described for redirection of a session initiation protocol (SIP) INVITE. A multi-subscriber identification module user equipment (multi-SIM UE) may intelligently determine when to redirect a SIP INVITE message to control on which of multiple networks a communication session is established. The multi-SIM UE may receive a SIP INVITE from a first user equipment (UE) requesting to establish a SIP session on a first network, the SIP INVITE including a first network address of the multi-SIM UE that is associated with a first SIM of the multi-SIM UE. The multi-SIM UE may, based at least in part on determining that a redirection criterion is satisfied, transmit a SIP redirection response including a second network address of the multi-SIM UE on a second network that is associated with a second SIM of the multi-SIM UE.

    Dynamic timing update techniques for wireless devices

    公开(公告)号:US09936453B1

    公开(公告)日:2018-04-03

    申请号:US15657829

    申请日:2017-07-24

    CPC classification number: H04W52/0216 H04W76/28 H04W88/06

    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.

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