Power saving mode optimizations and related procedures

• US 9,564,958 B2
• Filed: 06/27/2014
• Issued: 02/07/2017
• Est. Priority Date: 08/08/2013
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Martinez Tarradell, Marta, Bangolae, Sangeetha L., Jain, Puneet
• Primary Examiner(s): Acolatse, Kodzovi
• Application Number:
  US14/318,085
• Publication Number:
  US 20150043403A1
• Time in Patent Office: 956 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: E04G 23/0218 Increasing or restoring the load-bearing capacity of building construction elements E04G23/0203 and E04G23/0266 take precedence
• CPC Class Codes: E04H 9/025 Structures with concrete columns
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04B 7/0639 Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0058 Allocation criteria
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/0069 in case of dual connectivity, e.g. decoupled uplink/downlink
• CPC Class Codes: H04W 36/08 Reselecting an access point
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/322 by location data
• CPC Class Codes: H04W 4/023 : using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/70 : Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/12 : using downlink control channel
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/0206 : in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 52/0209 : in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0219 : where the power saving management affects multiple terminals
• CPC Class Codes: H04W 56/0005 : synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 64/006 : with additional information processing, e.g. for direction or speed determination
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 74/0833 : Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 8/02 : Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
• CPC Class Codes: H04W 8/24 : Transfer of terminal data
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/04 : adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

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.

Claims

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.