Power saving mode optimizations and related procedures

Patent metadata

Field	Value
Publication number	US-9564958-B2
Application number	US-201414318085-A
Country	US
Kind code	B2
Filing date	Jun 27, 2014
Priority date	Aug 8, 2013
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

Embodiments of an eNodeB and method for Machine Type Communication in a Wireless Network are generally described herein. In some embodiments, a method performed by circuitry of an evolved Node B (eNodeB) can include receiving, by the eNodeB, a notification that a User Equipment (UE) is configured to be used for Machine Type Communication (MTC). The method can include determining whether the UE is in a Radio Resource Control Connected (RRC_Connected) state and determining whether the UE can enter a power saving mode. The method can include configuring the UE to change to an RRC Deep Idle mode, in response to determining that the UE is in the RRC_Connected state and the UE can enter the power saving mode.

First claim

What is claimed is:

1. An evolved Node B (eNodeB) comprising:
processing circuitry and memory configured to:
receive a notification that a User Equipment (UE) is configured to be used for Machine Type Communication (MTC);
in response to receiving the notification that the UE is configured to be used for MTC;
determine whether the UE is in a connected state, wherein the connected state comprises a Radio Resource Control Connected (RRC Connected) state;
determine whether the UE can enter a power saving mode, wherein the power saving mode comprises a Radio Resource Control (RRC) Deep Idle mode; and
send a power savings release message to the UE in response to determining that the UE is in the connected state and the UE can enter the power saving mode, the power savings release message including instructions to the UE to release the connected state and to enter a power saving mode and disable access stratum signaling.

2. The eNodeB of claim 1 , wherein operations to determine whether the UE can enter the power saving mode include, upon expiration of a specified amount of time, operations to configure the UE to change to a Radio Resource Control Idle (RRC_Idle) state, wherein access stratum signaling is enabled while the UE is in the RRC Idle state.

3. The eNodeB of claim 1 , wherein the RRC Deep Idle mode is a configuration in a Radio Resource Control Idle (RRC_Idle) state.

4. The eNodeB of claim 1 , wherein the RRC Deep Idle mode is an RRC Deep Idle state and is separately configured from a Radio Resource Control Idle (RRC_Idle) state.

5. The eNodeB of claim 1 , wherein the power savings release message includes a new non-access stratum signaling message.

6. The eNodeB of claim 1 , wherein the power savings release message includes a Radio Resource Control Connection Release (RRCConnectionRelease) message.

7. The eNodeB of claim 1 , wherein the power savings release message includes a new a Radio Resource Control (RRC) Power Saving Release message.

8. The eNodeB of claim 1 further comprising, operations to configure the UE to change to a Radio Resource Control Idle (RRC_Idle) state.

9. The eNodeB of claim 8 , wherein operations to configure the UE to change to the RRC Idle state occur only if data activity is expected.

10. The eNodeB of claim 1 further comprising, operations to use a timer to determine when to configure the UE to change to a power saving mode.

11. The eNodeB of claim 1 , wherein the operations to receive a notification occur over a wireless communications network comprising a 3rd Generation Partnership Project (3GPP) long term evolution (LTE) network.

12. The eNodeB of claim 1 further comprising, operations to configure the UE to leave the power saving mode upon expiration of a specified amount of time.

13. A method performed by circuitry of an evolved Node B (eNodeB) comprising:
receiving, by the eNodeB, a notification that a User Equipment (UE) is configured to be used for Machine Type Communication (MTC);
in response to receiving the notification that the UE is configured to be used for MTC;
determining whether the UE is in a connected state, wherein the connected state comprises a Radio Resource Control Connected (RRC Connected) state;
determining whether the UE can enter a power saving mode, wherein the power saving mode comprises a Radio Resource Control (RRC) Deep Idle mode; and
send a power savings release message to the UE in response to determining that the UE is in the connected state and the UE can enter the power saving mode, the power savings release message including instructions to the UE to release the connected state and to enter a power saving mode and disable access stratum signaling.

14. The method of claim 13 further comprising, using a timer to determine when to configure the UE to change to an RRC Deep Idle mode.

15. The method of claim 13 , wherein determining whether the UE can enter a power saving mode includes, upon expiration of a specified amount of time, configuring the UE to change to a Radio Resource Control Idle (RRC_Idle) state and enable access stratum signaling.

16. At least one non-transitory machine-readable medium comprising instructions for operation of a computing system, which when executed by a machine, cause the machine to perform operations that:
determine, by the UE, that the UE is configured to be used for Machine Type Communication (MTC);
in response to determining that the UE is configured to be used for MTC;
determine whether the UE is in a Radio Resource Control Connected (RRC_Connected) state;
determine whether the UE can enter a power saving mode; configure the UE to change to an RRC Deep Idle mode and disable access stratum signaling, in response to determining that the UE is in the RRC_Connected state and the UE can enter the power saving mode;
after a period of time, configure the UE to transition to the RRC_Connected state;
determine whether the UE is stationary or has low mobility; and
responsive to a determination that the UE is stationary or has low mobility, select, for connection, a cell to which the UE was connected prior to entering the RRC Deep Idle mode.

17. The at least one non-transitory machine-readable medium of claim 16 further comprising, operations to use a timer to determine when to configure the UE to change to an RRC Deep Idle mode.

18. The at least one non-transitory machine-readable medium of claim 16 , wherein operations to determine whether the UE can enter a power saving mode include, upon expiration of a specified amount of time, operations to configure the UE to change to a Radio Resource Control Idle (RRC_Idle) state and enable access stratum signaling.

19. The at least one non-transitory machine-readable medium of claim 16 , wherein operations to configure the UE to change to an RRC Deep Idle mode include operations to receive a network indication at the UE.

20. User Equipment (UE) comprising:
a transceiver configured to be used for Machine Type Communication (MTC); and
a processor, coupled to the transceiver, arranged to:
determine whether the UE is in a Radio Resource Control Connected (RRC_Connected) state;

determine whether the UE can enter a power saving mode;
configure the UE to change to an RRC Deep Idle mode and disable access stratum signaling, in response to determining that the UE is in the RRC_Connected state and the UE can enter the power saving mode;
after a period of time, configure the UE to transition to the RRC_Connected state;
determine whether the UE is stationary or has low mobility; and
responsive to a determination that the UE is stationary or has low mobility, select, for connection, a cell to which the UE was connected prior to entering the RRC Deep Idle mode.

21. The UE of claim 20 , wherein determine whether the UE can enter a power saving mode includes, upon expiration of a specified amount of time, configure the UE to change to a Radio Resource Control Idle (RRC_Idle) state and enable access stratum signaling.

22. The UE of claim 21 , wherein configure the UE to change to an RRC Deep Idle mode includes receive a network indication at the UE.

Assignees

• Intel Ip Corp

Inventors

• Martinez Tarradell Marta
• Bangolae Sangeetha L
• Jain Puneet

Classifications

• H04W72/541

  using the level of interference · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W4/70

  Services for machine-to-machine communication [M2M] or machine type communication [MTC] · CPC title

• H04B7/0639

  Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection · CPC title

• H04W56/0005

  synchronizing of arrival of multiple uplinks · CPC title