SYSTEMS, METHODS, AND DEVICES FOR ENHANCED POWER SAVING FOR MOBILE TERMINATED COMMUNICATION

1 . An apparatus of a user equipment (UE) comprising:

a data storage device configured to store data indicating an idle time length corresponding to an idle mode and a power saving time length corresponding to a power saving mode; and

baseband circuitry operably coupled to the data storage device and configured to:

operate in an enhanced power saving mode (ePSM) comprising:

the idle mode, during which the UE is available to receive transmissions; and

the power saving mode, during which the UE is unavailable to receive transmissions; and

transition directly from the idle mode to the power saving mode, and directly from the power saving mode to the idle mode in a cyclic manner during the ePSM based on the idle time length and the power saving time length.

2 . The apparatus of claim 1 , wherein the baseband circuitry is configured to enter the ePSM responsive to a release of a radio resource control (RRC) connection between the UE and a node of a cellular data network.

3 . The apparatus of claim 1 , wherein the ePSM starts with the idle mode and then transitions to the power saving mode.

4 . The apparatus of claim 1 , wherein a beginning of each period of the ePSM is locked to an absolute clock reference such that the beginning of each period is an integer multiple of a sum of the idle time length and the power saving time length from the absolute clock reference.

5 . The apparatus of claim 4 , wherein the absolute clock reference comprises a universal coordinated time (UTC).

6 . The apparatus of claim 4 , wherein the absolute clock reference comprises a global positioning system (GPS) time.

7 . The apparatus of claim 1 , wherein the ePSM is not locked to an absolute clock reference.

8 . The apparatus of claim 7 , wherein the ePSM is configured to enter a cycle of the ePSM immediately upon release of a radio resource control (RRC) connection.

9 . An apparatus of a user equipment (UE) comprising:

wireless communication circuitry configured to enable the UE to communicate via a cellular data network; and

processing circuitry operably coupled to the wireless communication circuitry and configured to cause the wireless communication circuitry to operate in an enhanced power saving mode (ePSM) during which the wireless communication circuitry cycles back and forth between an idle mode and a power saving mode, wherein:

during the idle mode the wireless communication circuitry is available to receive transmissions;

during the power saving mode the communication circuitry is unavailable to receive transmissions; and

transitions between the idle mode and the power saving mode occur without signaling with the cellular data network.

10 . The apparatus of claim 9 , wherein the wireless communication circuitry is configured to send a request to use the ePSM to a mobility management entity (MME) of the cellular data network.

11 . The apparatus of claim 10 , wherein the request includes a tracking area update (TAU) request.

12 . The apparatus of claim 10 , wherein the request comprises an attach request.

13 . The apparatus of claim 9 , wherein an idle time period of the idle mode and a power saving time period of the power saving mode are specified in a message received from a mobility management entity (MME) of the cellular data network.

14 . The apparatus of claim 13 , wherein the message received from the MME comprises a tracking area update (TAU) accept message.

15 . The apparatus of claim 13 , wherein the message received from the MME comprises an attach accept message.

16 . The apparatus of claim 9 , wherein communication circuitry is only available to receive text message transmissions during the idle mode.

17 . A cellular communication device comprising:

a battery; and

a baseband processor operably coupled to the battery and configured to:

draw sufficient power from the battery to receive and process transmissions from a cellular data network during an idle mode;

draw insufficient power from the battery to receive and process transmissions from the cellular data network during a power saving mode; and

transition directly from the idle mode to the power saving mode, and directly from the power saving mode to the idle mode in a cyclic manner without communicating with the cellular data network during an enhanced power saving mode (ePSM).

18 . The cellular communication device of claim 17 , wherein the cellular communication device includes a cellular telephone device.

19 . The cellular communication device of claim 17 , wherein the cellular communication device includes a machine-type-communication (MTC) device.

20 . The cellular communication device of claim 17 , wherein the baseband processor includes:

a request component configured to format a request to enter the ePSM;

a decode component configured to decode a message from the cellular data network indicating that the cellular communication device has permission to enter the ePSM;

a cycle component configured to determine an idle time corresponding to the idle mode and a power saving time corresponding to the power saving mode; and

a power mode component configured to cycle the between the idle mode and the power saving mode based on the idle time and the power saving time.