Methods for transmitting mobile originated requests by mobile station with subscriber identity cards and systems utilizing the same

Abstract

A method for transmitting mobile originated request by a mobile station with a first subscriber identity card and a second subscriber identity card, executed by a processor, is provided. A subscriber identity card is determined from the first subscriber identity card and the second subscriber identity card. A first mobile originated request is sent to a called party via the determined subscriber identity card. A second mobile originated request is sent to the called party via the subscriber identity card other than the determined subscriber identity card when the first mobile originated request has failed.

1 . A method for transmitting mobile originated request by a mobile station with a first subscriber identity card and a second subscriber identity card, performed by a processor of the mobile station, comprising:
 determining a subscriber identity card from the first subscriber identity card and the second subscriber identity card;   sending a first mobile originated request to a called party via the determined subscriber identity card; and   sending a second mobile originated request to the called party via the subscriber identity card other than the determined subscriber identity card when the first mobile originated request has failed.   
   
   
       2 . The method as claimed in  claim 1 , wherein the step of sending the second mobile originated request further comprises:
 obtaining a failure cause when the first mobile originated request has failed;   determining whether a retry process is required according to the failure cause; and   sending the second mobile originated request via the other subscriber identity card when the retry process is required.   
   
   
       3 . The method as claimed in  claim 2 , wherein the step of sending the second mobile originated request further comprises:
 entering an idle mode when no retry process is required.   
   
   
       4 . The method as claimed in  claim 2 , wherein no retry process is required when the failure cause is caused by the called party. 
   
   
       5 . The method as claimed in  claim 1 , further comprising:
 handling a voice or data communication between the mobile station and the called party when the first mobile originated request has succeeded.   
   
   
       6 . The method as claimed in  claim 1 , wherein the second mobile originated request is automatically sent to the called party via the subscriber identity card other than the determined subscriber identity card when the first mobile originated request has failed. 
   
   
       7 . The method as claimed in  claim 1 , further comprising obtaining a signal indicating whether a retry process is required from a man-machine interface (MMI), wherein the second mobile originated request is sent to the called party via the subscriber identity card other than the determined subscriber identity card when the first mobile originated request has failed and the obtained signal indicating the retry process is required. 
   
   
       8 . A method for transmitting mobile originated request by a mobile station with a first subscriber identity card and a second subscriber identity card, performed by a processor of the mobile station, comprising:
 determining a subscriber identity card from the first subscriber identity card and the second subscriber identity card;   sending a first mobile originated request to a called party through a cell camped on with the determined subscriber identity card;   obtaining a failure cause when the first mobile originated request has failed;   determining whether a retry process is required when the failure cause indicates that the failure is not caused by the called party; and   sending a second mobile originated request to the called party through the same cell or a different cell camped on with the subscriber identity card other than the determined subscriber identity card during the retry process.   
   
   
       9 . The method as claimed in  claim 8 , wherein the failure cause indicates that a single radio frequency module and a single Baseband of the mobile station are occupied by another subscriber identity card other than the determined subscriber identity card. 
   
   
       10 . The method as claimed in  claim 8 , wherein the failure cause indicates that LAPDm or Radio Resource (RR) connection between the mobile station and a Base Station System (BSS) for the determined subscriber identity card is unestablished. 
   
   
       11 . The method as claimed in  claim 8 , wherein the failure cause indicates that Mobility Management (MM) connection is not be successfully set up because the first mobile originated request is not be supported or granted by an Mobile Switching Center (MSC). 
   
   
       12 . The method as claimed in  claim 8 , wherein the failure cause indicates that Radio Resource Control (RRC) connection between the mobile station and a node-B for the determined subscriber identity card is unestablished. 
   
   
       13 . The method as claimed in  claim 8 , wherein the failure cause indicates that Mobility Management (MM) connection is not be successfully set up because the first mobile originated request is not supported or granted by a UMTS Terrestrial Radio Access Network (UTRAN) or a radio network controller (RNC). 
   
   
       14 . The method as claimed in  claim 8 , wherein the failure cause indicates that the determined subscriber identity card is rejected to issue the first mobile originated request. 
   
   
       15 . A system for transmitting mobile originated request, comprising:
 a first subscriber identity card camping on a cell;   a second subscriber identity card camping on the same cell or a different cell;   a processor determining a subscriber identity card from the first subscriber identity card and the second subscriber identity card, sending a first mobile originated request to a called party via the determined subscriber identity card, and sending a second mobile originated request via the subscriber identity card other than the determined subscriber identity card when the first mobile originated request has failed.   
   
   
       16 . The system as claimed in  claim 15 , wherein the second mobile originated request is sent via the subscriber identity card other than the determined subscriber identity card automatically or manually when the first mobile originated request has failed. 
   
   
       17 . The system as claimed in  claim 15 , wherein whether the second mobile originated request is sent via the subscriber identity card other than the determined subscriber identity card automatically or manually is pre-configured. 
   
   
       18 . The system as claimed in  claim 15 , wherein the processor obtains a failure cause when the first mobile originated request has failed. 
   
   
       19 . The system as claimed in  claim 18 , wherein the processor determines whether a retry process is required according to the failure cause, and sends the second mobile originated request through the other subscriber identity card during the retry process. 
   
   
       20 . The system as claimed in  claim 19 , wherein the retry process proceeds to enter an idle mode when the failure cause is caused by the called party. 
   
   
       21 . The system as claimed in  claim 15 , wherein the processor handles a voice or data communication with the called party when the first mobile originated request has succeeded.