Signaling QoS requirements and UE power preference in LTE-A networks

• US 9,420,511 B2
• Filed: 09/17/2013
• Issued: 08/16/2016
• Est. Priority Date: 11/01/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Gupta Hyde, Maruti, Jha, Satish Chandra, Koc, Ali Taha, Vannithamby, Rath
• Primary Examiner(s): Sefcheck, Gregory
• Assistant Examiner(s): Van, Jenkey
• Application Number:
  US14/127,092
• Publication Number:
  US 20150230179A1
• Time in Patent Office: 1,064 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0417 Feedback systems
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04J 11/0023 Interference mitigation or co-ordination direct sequence spread spectrum [DSSS] systems H04B1/7097; frequency hopping H04B1/713; allocation criteria for ingress interference avoidance H04L5/0062; frequency allocation criteria for requirements on out-of-channel emissions H04L5/0066; arrangements for removing intersymbol interference or baseband equalisers H04L25/03006; peak power aspects in multicarrier modulation H04L27/2614; power management H04W52/00; traffic scheduling H04W72/54, H04W72/541
• CPC Class Codes: H04J 3/0614 the synchronising signal being characterised by the amplitude, duration or polarity
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 2101/375 Access point names [APN]
• CPC Class Codes: H04L 5/0046 Determination of how many bits are transmitted on different sub-channels
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 61/3005 Mechanisms for avoiding name conflicts
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04W 16/20 for indoor coverage or short range network deployment
• CPC Class Codes: H04W 16/24 Cell structures
• 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 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0268 : using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 28/04 : Error control
• CPC Class Codes: H04W 28/24 : Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 36/20 : for optimising the interference level
• CPC Class Codes: H04W 4/70 : Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0235 : where the received signal is a power saving command
• CPC Class Codes: H04W 60/04 : using triggered events
• CPC Class Codes: H04W 64/003 : locating network equipment
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/54 : based on quality criteria
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 72/563 : of the wireless resources
• CPC Class Codes: H04W 74/0858 : collision detection
• 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 8/005 : Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 88/16 : Gateway arrangements
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Embodiments for signaling quality of service (QoS) requirements and user equipment (UE) power preference in LTE-A networks are generally described herein. In some embodiments, a power preference indication (PPI) is received at an eNB from a UE to set a power saving preference for the UE. A communication session is established using radio resource control (RRC) messages between the UE and the eNB to identify a preference for QoS configuration for handling traffic provided to the UE by the eNB. The QoS for traffic provided by the eNB to the UE is managed by the eNB based on the identified preference for QoS configuration for handling traffic provided to the UE.

Claims

1. A method for signaling quality of service (QoS) requirements and user equipment (UE) power preference in LTE-A networks, comprising:

receiving, at an evolved nodeB (eNB), a message comprising a power preference indication (PPI) from a UE to set a power saving preference for the UE to execute in a low power consumption configuration when handling data traffic provided by the eNB and a QoS preference when handling data traffic provided by the eNB, the message further comprising;

a PPI field comprising a PPI bit that indicates the PPI and a QoS preference indication bit that indicates the QoS preference, in which the PPI bit takes values that specify between a normal power consumption configuration and the low power consumption configuration and the QoS preference indication bit takes values that specify between a high QoS configuration whose use satisfies a QoS guarantee for the UE and a low QoS configuration whose use provides low QoS for the UE in the low power consumption configuration;

detecting a conflict between the PPI and the QoS preference in which the conflict causes the UE, in observation of the QoS preference, to consume more power than the low power consumption configuration; and

managing, by the eNB, a QoS configuration for data traffic provided by the eNB based on the identified QoS preference such that one of a configuration that is primarily optimized for power saving and a configuration to satisfy the QoS of active traffic is selected to resolve the conflict between the PPI and the QoS preference based on the message.

2. The method of claim 1, wherein the message comprises the QoS preference indication bit added to the PPI field to provide the indication of the QoS preference of the UE, the PPI field consisting of the PPI bit and the QoS preference indication bit.

3. The method of claim 1 wherein an allowable combination of the PPI bit and the QoS preference indication bit comprises the PPI bit being set to a first value for indication to the eNB of a preference by the UE for the normal power configuration and the QoS preference indication bit being set to a first value for indication to the eNB of a preference by the UE for the high QoS configuration to satisfy the QoS guarantee of the UE.

4. The method of claim 1 wherein an allowable combination of the PPI bit and the QoS preference indication bit comprises the PPI bit being set to a second value for indication to the eNB of a preference by the UE for the low power consumption configuration and the QoS preference indication bit being set to a second value for indication to the eNB of a preference by the UE for using the low QoS configuration, wherein the using the low QoS configuration provides low QoS in a power saving configuration when active traffic for the UE is received by the eNB.

5. The method of claim 1, further comprising ignoring, at the eNB, at least one combination of PPI bit and QoS preference indication bit as invalid.

6. The method of claim 1, wherein:

the message is a UEAssistancelnformation message initiated by the UE and received when the UE is in Radio Resource Control (RRC) connected mode.

7. A user equipment (UE), comprising:

memory for storing data;

a transceiver for transmitting data; and

a processor, coupled to the transceiver and memory, the processor arranged to;

send an evolved nodeB (eNB) a message comprising a power preference indication (PPI) bit providing a PPI to set a power saving preference indicating the UE is to execute in a low power consumption configuration when handling data traffic provided by the eNB and a QoS preference when handling data traffic provided by the eNB, the message further comprising;

a PPI field comprising the PPI bit that indicates the PPI and a QoS preference indication bit that indicates the QoS preference, in which the PPI bit takes values that specify between a normal power consumption configuration and the low power consumption configuration and the QoS preference indication bit takes values that specify between a high QoS configuration whose use satisfies a QoS guarantee for the UE and a low QoS configuration whose use provides low QoS for the UE in the low power consumption configuration; and

handling data traffic provided by the eNB based on a QoS configuration selected by the eNB when a conflict is detected between the PPI and the QoS preference, wherein the QoS configuration selected is one of a configuration that is primarily optimized for power saving and a configuration to satisfy the QoS of active traffic.

8. The UE of claim 7, wherein the message comprises the QoS preference indication bit added to the PPI field to provide the indication of the QoS preference, the PPI field consisting of the PPI bit and the added QoS preference indication bit.

9. The UE of claim 8, wherein the processor sets the PPI bit and the QoS preference indication bit to an allowable combination that comprises the PPI bit being set to a first value for indication to the eNB of a preference by the UE for the normal power configuration and the QoS preference indication bit being set to a first value for indication to the eNB of a preference by the UE for the high QoS configuration to satisfy the QoS guarantee of the UE.

10. The UE of claim 8 wherein the processor sets the PPI bit and the QoS preference indication bit to an allowable combination that comprises the PPI bit being set to a second value for indication to the eNB of a preference by the UE for the low power consumption configuration and the QoS preference indication bit being set to a second value for indication to the eNB of a preference by the UE for using the low QoS configuration, wherein the processor uses the low QoS configuration to provides low QoS in a power saving configuration when active traffic for the UE is received by the eNB.

11. The UE of claim 7, wherein the UE is one of:

an intelligent UE in which the processor is further arranged to determine at least one combination of PPI bit and QoS preference indication bit as invalid and avoid transmission of the at least one combination of PPI bit and QoS preference indication bit to the eNB; and

a non-intelligent UE in which the processor is further arranged to transmit the at least one combination of PPI bit and QoS preference indication bit to the eNB.

12. An evolved nodeB (eNB), comprising:

memory for storing data;

a transceiver for transmitting and receiving data; and

a processor, coupled to the transceiver and memory, the processor arranged to;

receive from a user equipment (UE) a message comprising a power preference indication (PPI) to set a power saving preference for the UE to execute in a low power consumption configuration when handling data traffic provided by the eNB and a QoS preference when handling data traffic provided by the eNB, the message further comprising;

a PPI field comprising a PPI bit that indicates the PPI and a QoS preference indication bit that indicates the QoS preference, in which the PPI bit takes values that specify between a normal power consumption configuration and the low power consumption configuration and the QoS preference indication bit takes values that specify between a high QoS configuration whose use satisfies a QoS guarantee for the UE and a low QoS configuration whose use provides low QoS for the UE in the low power consumption configuration, and

detect a conflict between the PPI and the QoS preference in which the conflict causes the UE, in observation of the QoS preference, to cause the UE to consume more power than the low power consumption configuration; and

manage, a QoS configuration for data traffic provided to the UE based on the identified QoS preference such that one of a configuration that is primarily optimized for power saving and a configuration to satisfy the QoS of active traffic is selected to resolve the conflict between the PPI and the QoS preference based on the message.