Patent ID: 9565715
Date: 2017-02-07
CPC Classifications: H04B,H04L,H04W

Claim:
1. A wireless communications device, comprising: a Radio Frequency (RF) module; and a Baseband chip configured to initiate a mobile originated (MO) call through the RF module from the wireless communications device with a first subscriber identity card when the RF module is occupied by performing a background packet switched (PS) data service with a second subscriber identity card, arbitrate a first protocol stack handler to suspend or terminate the background PS data service associated with the second subscriber identity card in response to initiating the MO call associated with the first subscriber identity card, and arbitrate a second protocol stack handler to make the MO call associated with the first subscriber identity card when the background PS data service associated with the second subscriber identity card is suspended or terminated, wherein the Baseband chip further determines whether the MO call has a higher priority than the background PS data service, prior to arbitrating the first protocol stack handler to suspend or terminate the background PS data service, and the arbitration of the first protocol stack handler to suspend or terminate the background PS data service is performed when the MO call has a higher priority than the PS data service; and wherein the Baseband chip further arbitrates the second protocol stack handler to regain service for the first subscriber identity card subsequent to the arbitrating the first protocol stack handler to suspend or terminate the background PS data service and prior to arbitrating the second protocol stack handler to make the MO call.