Silent redial during mobile-originated call

Abstract

Aspects of the present disclosure provide techniques to speed up and improve silent redial success rates in wireless communications. A user equipment (UE) may determine how to attempt retrying a mobile originated (MO) call and procedures for selecting a subsequent system for attempting the call based, at least in part, on a restriction status of the call and a detected failure.

What is claimed is: 
     
         1 . A method for wireless communications, comprising:
 attempting a mobile original call;   receiving a quality of service (QoS) failure message in response to attempting the mobile originated call;   determining that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and   re-attempting the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time.   
     
     
         2 . An apparatus for wireless communications, comprising:
 means for attempting a mobile original call;   means for receiving a quality of service (QoS) failure message in response to attempting the mobile originated call;   means for determining that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and   means for re-attempting the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time.   
     
     
         3 . An apparatus for wireless communications, comprising:
 at least one processor configured to:
 attempt a mobile original call; 
 receive a quality of service (QoS) failure message in response to attempting the mobile originated call; 
 determine that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and 
 re-attempt the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time; and 
   a memory coupled to the at least one processor.   
     
     
         4 . A non-transitory computer-readable medium having code stored thereon, the code executable by one or more processors for:
 attempting a mobile original call;   receiving a quality of service (QoS) failure message in response to attempting the mobile originated call;   determining that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and   
       re-attempting the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time.