Techniques and systems for extended discontinuous reception

Patent metadata

Field	Value
Publication number	US-2016249406-A1
Application number	US-201615141541-A
Country	US
Kind code	A1
Filing date	Apr 28, 2016
Priority date	Jan 17, 2013
Publication date	Aug 25, 2016
Grant date	—

Abstract

Embodiments of techniques and systems for extended discontinuous reception (DRX) are described herein. In some embodiments, a user equipment (UE) configured for extended DRX may include receiver circuitry and paging circuitry. The receiver circuitry may be configured to receive a system frame number from an eNB and receive extension data from the eNB. The paging circuitry may be configured to determine an augmented system frame number based on the system frame number and the extension data, determine a paging frame number based on the extension data, and monitor for paging occasions when the augmented system frame number is equal to the paging frame number. Other embodiments may be described and/or claimed.

First claim

1 .- 25 . (canceled)

26 . A user equipment, comprising:
receiver circuitry to:
receive a system frame number from an eNB, and
receive extension data from the eNB;
paging circuitry to:
determine an augmented system frame number based on the system frame number and the extension data;
determine a paging frame number based on the extension data; and
monitor for paging occasions when the augmented system frame number is equal to the paging frame number.

27 . The user equipment of claim 26 , wherein receive extension data from the eNB comprises receive extension data from the eNB in an information element of a master information block or a system information block.

28 . The user equipment of claim 26 , wherein:
the system frame number comprises a fixed number of bits; the extension data comprises one or more bits; and determine an augmented system frame number based on the system frame number and the extension data comprises concatenate the system frame number and the extension data into a single bit string representative of the augmented system frame number.

29 . The user equipment of claim 26 , wherein:
the extension data comprises a multiplier factor; and determine an augmented system frame number based on the system frame number and the extension data comprises multiplication of the system frame number and the multiplier factor to generate the augmented system frame number.

30 . The user equipment of claim 26 , further comprising:
transmitter circuitry to transmit an indicator representative of a proposed discontinuous reception cycle length to the eNB for use in determining the extension data.

31 . The user equipment of claim 30 , wherein transmit the indicator representative of the proposed discontinuous reception cycle length to the eNB comprises transmit the indicator representative of the proposed discontinuous reception cycle length to a mobility management entity for transmission from the mobility management entity to the eNB.

32 . The user equipment of claim 26 , wherein the paging circuitry is to monitor for paging occasions when the user equipment is in a connected mode, the extension data comprises a multiplier factor; and the paging circuitry is further to:
modify a connected mode discontinuous reception parameter by the multiplier factor, wherein the connected mode discontinuous reception parameter comprises an on duration timer parameter, an inactivity timer parameter, a retransmission timer parameter, a long cycle start offset parameter, or a short cycle timer parameter.

33 . The user equipment of claim 26 , wherein the paging circuitry is further to:
prior to monitoring for paging occasions when the augmented system frame number is equal to the paging frame number, wait for a wake-up indicator from the eNB or from an inactivity period timer; wherein the paging circuitry monitors for paging occasions in response to receiving the indicator.

34 . An eNB comprising:
timer circuitry to: provide a system frame number for transmission to a user equipment in a cell served by the eNB; transmitter circuitry to: transmit the system frame number to the user equipment, and transmit extension data to the user equipment; and
paging circuitry to:
determine when a paging frame number for the user equipment is equal to an augmented system frame number, the augmented system frame number based on the system frame number and the extension data, and
if the paging frame number is equal to an augmented system frame number, and a paging message is queued for transmission to the user equipment, provide the paging message for transmission to the user equipment.

35 . The eNB of claim 34 , further comprising:
receiver circuitry to receive an indicator representative of a proposed discontinuous reception cycle length from the user equipment, wherein the extension data is based on the indicator representative of the proposed discontinuous reception cycle length.

36 . The eNB of claim 35 , wherein the paging circuitry is to:
determine a maximum of the proposed discontinuous reception cycle length and a default discontinuous reception cycle length; and generate the paging frame number for the user equipment based on the determined maximum.

37 . The eNB of claim 35 , wherein the paging circuitry is to:
generate the paging frame number for the user equipment based on the proposed discontinuous reception cycle length.

38 . The eNB of claim 34 , wherein the transmitter circuitry is to transmit the extension data to the user equipment in a master information block or a system information block.

39 . The eNB of claim 34 , further comprising:
receiver circuitry to receive the extension data from a mobile management entity.

40 . The eNB of claim 39 , wherein the receiver circuitry is to receive the extension data from the mobile management entity in an S1 paging message.

41 . The eNB of claim 34 , wherein the transmitter circuitry is to:
transmit an indicator to the user equipment to extend a discontinuous reception cycle length based on the extension data.

42 . One or more non-transitory, computer-readable media having computer readable instructions stored therein which, when executed by one or more processing devices of a user equipment, cause the user equipment to:
receive a system frame number from an eNB; receive extension data from the eNB; determine an augmented system frame number based on the system frame number and the extension data; determine a paging frame number based on the extension data; and monitor for paging occasions when the augmented system frame number is equal to the paging frame number.

43 . The one or more non-transitory, computer-readable media of claim 42 , further having computer readable instructions stored therein which, when executed by the one or more processing devices of the user equipment, cause the user equipment to:
when not monitoring for paging occasions, disable wireless reception.

44 . The one or more non-transitory, computer-readable media of claim 42 , wherein receive extension data from the eNB comprises receive extension data from the eNB in an information element of a master information block or a system information block.

45 . The one or more non-transitory, computer-readable media of claim 42 , wherein:
the system frame number comprises a fixed number of bits; the extension data comprises one or more bits; and determine an augmented system frame number based on the system frame number and the extension data comprises concatenate the system frame number and the extension data into a single bit string representative of the augmented system frame number.

46 . The one or more non-transitory, computer-readable media of claim 42 , wherein:
the extension data comprises a multiplier factor; and determine an augmented system frame number based on the system frame number and the extension data comprises multiply the system frame number and the multiplier factor to generate the augmented system frame number.

47 . The one or more non-transitory, computer-readable media of claim 42 , further having computer readable instructions stored therein which, when executed by the one or more processing devices of the user equipment, cause the user equipment to:
transmit a wake-up indicator representative of a proposed discontinuous reception cycle length to the eNB for use in determining the extension data.

48 . The one or

Assignees

• Intel Ip Corp

Inventors

• Bangolae Sangeetha
• Martinez Tarradell Marta
• Jain Puneet
• Heo Youn Hyoung

Classifications

• H04L5/0076

  Allocation utility-based · CPC title

• H04L5/0035 Primary

  Resource allocation in a cooperative multipoint environment · CPC title

• H04W84/045

  using private Base Stations, e.g. femto Base Stations, home Node B · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04L5/14

  Two-way operation using the same type of signal, i.e. duplex · CPC title