Switching discontinuous reception parameters

• US 9,386,571 B2
• Filed: 03/18/2013
• Issued: 07/05/2016
• Est. Priority Date: 03/16/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Martinez Tarradell, Marta, Bangolae, Sangeetha L., Fong, Mo-Han, Koc, Ali T., Jha, Satish C.
• Primary Examiner(s): Phillips, Hassan
• Assistant Examiner(s): George, Ayanah
• Application Number:
  US13/845,278
• Publication Number:
  US 20130265928A1
• Time in Patent Office: 1,205 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04J 11/0073 Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
• CPC Class Codes: H04L 1/0033 arrangements specific to the transmitter
• CPC Class Codes: H04L 1/0077 Cooperative coding
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1635 Cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1877 for semi-reliable protocols, e.g. for less sensitive applications like streaming video buffer level management for video bitstream control arrangements H04N21/44004
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/189 Transmission or retransmission of more than one copy of a message
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 12/2854 Wide area networks, e.g. public data networks
• CPC Class Codes: H04L 47/283 in response to processing delays, e.g. caused by jitter or round trip time [RTT]
• CPC Class Codes: H04L 47/6275 based on priority
• CPC Class Codes: H04L 5/001 : the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 : Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 : Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0073 : Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/14 : Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1438 : Negotiation of transmission parameters prior to communication modified according to link quality H04L1/0001
• CPC Class Codes: H04L 5/1446 : of transmission speed
• CPC Class Codes: H04L 5/1469 : using time-sharing
• CPC Class Codes: H04L 65/75 : Media network packet handling
• CPC Class Codes: H04L 65/752 : adapting media to network capabilities
• CPC Class Codes: H04L 65/756 : adapting media to device capabilities
• CPC Class Codes: H04L 67/02 : based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/568 : Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04N 21/25841 : involving the geographical location of the client retrieval from the Internet by querying based on geographical locations G06F16/9537; arrangements for identifying locations of receiving stations in broadcast systems H04H60/51; location of the user terminal in data switching networks H04L67/52; services making use of the location of users or terminals in wireless networks H04W4/02; locating users or terminals in wireless networks H04W64/00
• CPC Class Codes: H04N 21/41407 : embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/6405 : Multicasting data broadcast and multicast in packet switching networks H04L12/18
• CPC Class Codes: H04N 21/6408 : Unicasting
• CPC Class Codes: H04W 16/04 : Traffic adaptive resource partitioning
• CPC Class Codes: H04W 24/00 : Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/0236 : radio quality, e.g. interference, losses or delay
• 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 28/0278 : using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• CPC Class Codes: H04W 4/06 : Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 52/02 : Power saving arrangements in wired systems H04L12/12; signaling of mobile application services, e.g. low battery notifications H04W4/20
• 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 52/0229 : where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0235 : where the received signal is a power saving command
• CPC Class Codes: H04W 52/143 : Downlink power control
• CPC Class Codes: H04W 52/243 : taking into account interferences
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/12 : Wireless traffic scheduling
• CPC Class Codes: H04W 72/1268 : of uplink data flows
• CPC Class Codes: H04W 72/1273 : of downlink data flows
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• 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 72/27 : between access points
• CPC Class Codes: H04W 72/51 : based on terminal or device properties
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 72/569 : of the traffic information
• CPC Class Codes: H04W 74/085 : collision avoidance
• 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: Y02D 30/70 : in wireless communication networks

Abstract

In accordance with some embodiments, a new discontinuous reception (DRX) parameter change may be received in user equipment while the user equipment is using an existing DRX parameter. The user equipment continues to use the existing parameter and determines when a new discontinuous reception cycle is starting. The change to the next discontinuous reception parameter is implemented in the new discontinuous reception cycle. In some embodiments by having an agreed upon time to implement the change to the new parameter, signaling between an enhanced node B and user equipment may be reduced. Signaling overhead is a serious impediment to achieving high efficiency in wireless communications.

Claims

1. A method comprising:

in response to detection of a battery constraint indicator, deciding what user assistance information to send to a base station based on a user equipment quality of experience requirements, user equipment power capabilities, and user equipment power consumption rates;

providing the battery constraint indicator from the user equipment to the base station including a bit that is set or not set to indicate whether the user equipment has a power restriction;

receiving, from the base station, a new discontinuous reception (DRX) parameter in a user equipment while the user equipment is using an existing parameter, said new discontinuous reception parameter selected in part based on said bit;

continuing to use the existing parameter after receiving the new parameter until a prearranged point; and

thereafter switching to the new parameter; and

after sending or receiving data, restarting an existing DRX Inactivity Timer, and when this timer expires, going into a DRX cycle using the existing parameter, and then the next time the cycle is entered, using the new parameter, and identifying a current state using the new parameter.

2. The method of claim 1 including:

determining when a new discontinuous reception cycle is starting; and

implementing a change to the new discontinuous reception parameter in the new discontinuous reception cycle.

3. The method of claim 1 including changing a discontinuous reception parameter without signaling a time for the parameter change.

4. The method of claim 1 including providing user equipment assistance to an enhanced node B.

5. The method of claim 4 including receiving the new discontinuous reception parameter from the enhanced node B in response to the user equipment assistance.

6. The method of claim 1 including automatically switching to the new parameter after a time delay.

7. The method of claim 6 including automatically switching to the new parameter after a preset time delay after an RRCConnectionReconfiguration message.

8. One or more non-transitory computer readable media storing instructions to cause a processor in a wireless device to perform a sequence comprising:

in response to detection of a battery constraint indicator, deciding what user assistance information to send to a base station based on a user equipment quality of experience requirements, user equipment power capabilities, and user equipment power consumption rates;

providing the battery constraint indicator from the user equipment to the base station including a bit that is set or not set to indicate whether the user equipment has a power restriction;

receiving, from the base station, a new discontinuous reception parameter (DRX) in a user equipment while the user equipment is using an existing parameter, said new discontinuous reception parameter selected in part based on said bit;

continuing to use the existing parameter after receiving the new parameter until a prearranged point;

thereafter switching to the new parameter; and

after sending or receiving data, restarting an existing DRX Inactivity Timer, and when this timer expires, going into a DRX cycle using the existing parameter, and then the next time the cycle is entered, using the new parameter, and identifying a current state using the new parameter.

9. The media of claim 8 further storing instructions to perform a sequence including:

determining when a new discontinuous reception cycle is starting; and

implementing a change to the new discontinuous reception parameter in the new discontinuous reception cycle.

10. The media of claim 8 further storing instructions to perform a sequence including changing a discontinuous reception parameter without signaling a time for the parameter change.

11. The media of claim 8 further storing instructions to perform a sequence including providing user equipment assistance to an enhanced node B.

12. The media of claim 11 further storing instructions to perform a sequence including receiving the new discontinuous reception parameter from the enhanced node B in response to the user equipment assistance.

13. The media of claim 8 further storing instructions to perform a sequence including automatically switching to the new parameter after a time delay.

14. The media of claim 13 further storing instructions to perform a sequence including automatically switching to the new parameter after a preset time delay after an RRCConnectionReconfiguration message.

15. An apparatus comprising:

a receiver to detect a battery constraint indicator, decide what user assistance information to send to a base station based on a user equipment quality of experience requirements, user equipment power capabilities, and user equipment power consumption rates, provide the battery constraint indicator from the user equipment to the base station including a bit that is set or not set to indicate whether the user equipment has a power restriction, receive a new discontinuous reception (DRX) parameter from the base station while the apparatus is using an existing

parameter, and to continue to use the existing parameter until a pre-arranged point, and to thereafter switch to the new parameter, said new discontinuous reception parameter selected in part based on said bit; and

a processor coupled to said receiver; and

said processor to send or receive data, restart an existing DRX Inactivity Timer, and when this timer expires, go into a DRX cycle using the existing parameter, and then the next time the cycle is entered, use the new parameter, and identify a current state using the new parameter.

16. The apparatus of claim 15, said processor to determine when a new discontinuous reception cycle is starting, and implement a change to the new discontinuous reception parameter in the new discontinuous reception cycle.

17. The apparatus of claim 15, said processor to change a discontinuous reception parameter without signaling a time for the parameter change.

18. The apparatus of claim 15, said processor to provide user equipment assistance to an enhanced node B.

19. The apparatus of claim 18, said processor to receive the new discontinuous reception parameter from the enhanced node B in response to the user equipment assistance.

20. The apparatus of claim 15, said processor to automatically switch to the new parameter after a time delay.

21. The apparatus of claim 20, said processor to automatically switch to the new parameter after a preset time delay after an RRCConnectionReconfiguration message.

22. The apparatus of claim 15 wherein said apparatus is a long term evolution user equipment.