User equipment with reduced power consumption operational modes

• US 9,042,279 B2
• Filed: 09/27/2013
• Issued: 05/26/2015
• Est. Priority Date: 02/22/2013
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Fan, Lin, Zhu, Yuan, Han, Seunghee, Davydov, Alexei, Wagner, Elmar
• Primary Examiner(s): Pham, Chi H
• Assistant Examiner(s): CHOWDHURY, FAHMIDA S
• Application Number:
  US14/126,723
• Publication Number:
  US 20140269459A1
• Time in Patent Office: 606 Days
• US Class Current: 370/294
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• CPC Class Codes: H04L 2101/677 Multiple interfaces, e.g. multihomed nodes
• CPC Class Codes: H04L 27/2614 Peak power aspects
• CPC Class Codes: H04L 45/30 Routing of multiclass traffic
• CPC Class Codes: H04L 47/11 Identifying congestion
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion
• CPC Class Codes: H04L 61/2514 between local and global IP addresses
• CPC Class Codes: H04L 61/2525 Translation at a client
• CPC Class Codes: H04L 61/2539 Hiding addresses; Keeping addresses anonymous
• CPC Class Codes: H04L 61/2564 for a higher-layer protocol, e.g. for session initiation protocol [SIP]
• CPC Class Codes: H04L 61/2575 using address mapping retrieval, e.g. simple traversal of user datagram protocol through session traversal utilities for NAT [STUN]
• CPC Class Codes: H04L 61/2592 using tunnelling or encapsulation
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/06 Testing, supervising or monitoring using simulated traffic
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 28/0289 Congestion control load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/12 using signalling between network elements
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 36/30 by measured or perceived connection quality data
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 4/80 : Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 40/02 : Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 40/244 : using a network of reference devices, e.g. beaconing
• CPC Class Codes: H04W 48/08 : Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/14 : using user query or user detection
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/18 : Selecting a network or a communication service
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/028 : switching on or off only a part of the equipment circuit blocks
• CPC Class Codes: H04W 72/02 : Selection of wireless resources by user or terminal
• 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 72/30 : Resource management for broadcast services
• CPC Class Codes: H04W 74/002 : Transmission of channel access control information
• CPC Class Codes: H04W 74/02 : Hybrid access
• CPC Class Codes: H04W 74/04 : Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 74/08 : Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/23 : Manipulation of direct-mode connections
• 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 84/12 : WLAN [Wireless Local Area Networks]
• 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: Y02D 30/70 : in wireless communication networks

Abstract

A user equipment (UE) power-cycles UE transmission modem components to reduce overall UE power consumption. For example, multiple HARQ ACK/NACK feedback bits are aggregated for a predetermined number of consecutive DL subframes, and then the feedback is transmitted in a single dedicated UL subframe so that a transmitter and power amplifier may be temporarily turned off (State 3) to reduce power consumption in the UE.

Claims

1. A user equipment (UE) for communication in a long term evolution (LTE) wireless network, the communication being arranged as a radio frame including multiple subframes, the multiple subframes including a plurality of uplink subframes, the UE comprising:

a power amplifier (PA);

a transmitter to transmit during at least one of the plurality of uplink subframes; and

circuitry configured to;

deactivate the transmitter and the PA in a first portion of the plurality of uplink subframes, the first portion including at least half of the plurality of uplink subframes;

activate the transmitter and the PA to transmit information in a second portion of the plurality of uplink subframes that are different from the first portion; and

aggregate hybrid automatic repeat request (HARQ) acknowledgement and/or negative acknowledgement (ACK/NACK) information for a set of consecutive downlink subframes so as to transmit the aggregate HARQ ACK/NACK information in a predetermined uplink subframe of the second portion of the plurality of uplink subframes,

in which the set of consecutive downlink subframes includes subframes {N, N+1, . . . , N+k−

1}, where N is a subframe index value of the set and where k is a total number of the consecutive downlink subframes among the set.

2. The UE of claim 1, in which the multiple subframes include a plurality of downlink subframes, and in which the information includes multiple aggregate HARQ ACK/NACK information, each one of the multiple aggregate HARQ ACK/NACK information corresponding to a different set of consecutive downlink subframes among the plurality of downlink subframes.

3. The UE of claim 2, in which a power consumption level for transmission of the multiple aggregate HARQ ACK/NACK information in the second portion of the plurality of the uplink subframes is less than that which would be used for multiple transmissions of HARQ ACK/NACK information in each of different ones of individual uplink subframes.

4. The UE of claim 1, in which the predetermined uplink subframe includes a subframe index value of N+k+3.

5. The UE of claim 1, in which the predetermined uplink subframe includes a subframe index value of x, where x satisfies the relationship N+4≦

x<

N+k+3.

6. The UE of claim 1, in which k equals 2.