Power management based on handover status
摘要
說明書
In one approach, the controller may determine or detect 512 that a MO/MT call has started on WLAN (e.g., using WLAN interface 208). In one approach, in response to determining that the MO/MT call has started on WLAN (“Yes” in step 512), the controller may activate 514 the modem and can acquire a suitable cell (or target cell site or target base station; e.g., base station 110) without registration. For example, the controller may use a paging or control channel to send an attach message to the target base station on the cellular network, thereby indicating the presence of the UE. In response to determining that the MO/MT call has not started on WLAN (“No” in step 512), the controller may maintain 516 the cellular modem in a power-save mode.
In one approach, the controller may determine 516 whether IMS PDN or internet is to be handed over to the cellular network. In some embodiments, the controller may determine whether the MO/MT call has ended, and in response to determining that the call has not ended, can determine that the IMS PDN or internet is to be handed over to the cellular network. On the other hand, in response to determining that the call has ended, the controller may determine that the IMS PDN or internet is not to be handed over to the cellular network (“No” in step 516), and can maintain a pre-registration state (e.g., maintaining the state of step 514).
