`1111111111111111 11111 111111111111111 lll111111111111111
`I
`IIIII IIIII IIIII IIIII
`
`US009832726B2
`
`(IO) Patent No.: US 9,832,726 B2
`
`c12) United States Patent
`
`(45)Date of Patent:*Nov. 28, 2017
`
`
`Yavuz et al.
`
`(54)SYSTEMS AND METHODS FOR BLOCKING
`EXCESSIVE TRANSMITTER MESSAGE
`SIGNALING
`
`(56)
`
`
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`9,445,364 B2 9/2016 Yavuz et al.
`
`
`(71)Applicant: Telefonaktiebolaget LM Ericsson
`
`
`
`
`2012/0252442 Al* 10/2012 Fu . H04W 24/10
`
`
`(publ), Stockholm (SE)
`455/426.1
`(Continued)
`
`(72) Inventors: Emre Yavuz, Stockholm (SE); Stefan
`
`
`
`
`Wiinstedt, Lulea (SE); Henning
`
`Wiemann, Aachen (DE)
`
`FOREIGN PATENT DOCUMENTS
`
`EP
`
`
`(73) Assignee: Telefonaktiebolaget LM Ericsson
`EP
`
`
`(publ), Stockholm (SE)
`
`
`
`2056540 Al 5/2009
`
`2061192 Al 5/2009
`(Continued)
`
`( *) Notice: Subject to any disclaimer, the term ofthis
`
`
`
`
`
`
`
`patent is extended or adjusted under 35
`
`U.S.C. 154(b) by O days.
`Alcatel-Lucent, et al., "Rl-125169: Correction on 'Power prefer­
`
`
`
`
`
`
`
`
`ence indication,"' Change Request 36.331, Version 11.1.0, 3rd
`
`
`
`This patent is subject to a terminal dis­
`
`
`
`
`Generation Partnership Project (3GPP), TSG-RAN WG2 Meeting
`claimer.
`
`
`
`#79bis, Oct. 8-12, 2012, 7 pages, Bratislava, Slovakia.
`
`OTHER PUBLICATIONS
`
`(21)Appl. No.: 15/235,734
`
`(Continued)
`
`
`
`(22)Filed:Aug. 12, 2016
`
`(65)
`
`
`
`Prior Publication Data
`
`Primary Examiner - Iqbal Zaidi
`
`
`
`
`
`(74)Attorney, Agent, or Firm - Withrow & Terranova,
`PLLC
`
`
`
`US 2016/0353377 Al Dec. 1, 2016
`
`
`
`Related U.S. Application Data
`
`ABSTRACT
`
`(51)
`Int. Cl.
`G0SC 17100
`
`(2006.01)
`
`H04W52/02 (2009.01)
`(Continued)
`
`(57)
`
`The present disclosure relates to transmitting assistance
`
`
`
`
`
`
`information from a first node to a second node. In one
`
`
`
`
`(63) Continuation of application No. 13/896,801, filed on
`
`
`
`embodiment, a first node includes a wireless transmitter and
`
`May 17, 2013, now Pat. No. 9,445,364.
`
`
`a wireless receiver. In response to transmitting a preference
`(Continued)
`
`
`indicator for a first confito a second node via the gu ration
`
`
`
`
`
`wireless transmitter or receiving a reconfiguration request
`
`
`
`associated with the preference indicator for the first con­
`
`
`
`
`figu ration, the first node starts a timer set to a value that
`
`
`
`defines an amount of time before the first node is permitted
`
`
`
`
`to transmit a preference indicator for a second configuration
`(52)
`U.S. Cl.
`
`
`to the second node. The first node then blocks transmission
`CPC ......... H04W 5210216 (2013.01); H04L 69/28
`
`
`
`
`
`
`
`of the preference indicator for the second configuration to
`
`
`(2013.01); H04W 5210209 (2013.01);
`
`
`the second node until the timer has expired. In this manner,
`(Continued)
`
`
`
`
`excessive signaling of preference indicators from the first
`(58)
`
`
`Field of Classification Search
`node to the second node is avoided.
`
`CPC ................................................. H04W 52/0216
`
`22 Claims, 8 Drawing Sheets
`(Continued)
`
`IPR2022-00462
`Apple EX1001 Page 1
`
`

`

`US 9,832,726 B2
`
`Page 2
`
`
`
`
`
`Related U.S. Application Data
`
`Partnership Project (3GPP), Technical Specification 25.331, Version
`
`
`
`
`
`
`11.5.0, Mar. 2013, 2,079 pages.
`
`
`(60)Provisional application No. 61/678,791, filed on Aug.
`Ericsson et al., "Tdoc Rl-125604: Discussion on the Existence and
`
`
`
`
`
`
`
`
`Operation of the PPI Prohibit Timer," 3rd Generation Partnership
`2, 2012.
`
`
`
`Project (3GPP), TSG-RAN WG2 #80, Nov. 12-16, 2012, 3 pages,
`
`New Orleans, Louisiana.
`Holma, Harri et al., "Chapter 15: HSPA Evolution," WCDMA for
`
`
`
`
`
`UMTS: HSPA Evolution and LTE, Fifth Edition, Dec. 7, 2010, pp.
`H04L 29106
`
`431-454, John Wiley & Sons, Ltd.
`(52)U.S. Cl.
`
`
`
`Nokia Corporation, "Rl-122512: Surmnary of email discussion
`CPC ....... H04W 761046 (2013.01); H04W 761048
`
`
`
`
`
`[77bis#25] LTE/EDDA: Assistance information," 3rd Generation
`
`
`
`
`Partnership Project (3GPP), TSG-RAN WG2 Meeting #78, May
`
`(2013.01); Y02B 60/50 (2013.01)
`
`
`
`21-25, 2012, 21 pages, Prague, Czech Republic.
`
`( 58)Field of Classification Search
`
`
`
`
`Research in Motion UK Limited, "R2-121609: A Framework for
`
`
`
`
`USPC .................. 370/370, 235-311; 455/455, 418
`
`Management of Backgr ound Traffic UEs," TSG-RAN WG2 Meet­
`
`
`
`
`See application file for complete search history.
`
`
`
`ing #77bis, Mar. 26-30, 2012, 4 pages, Jeju, South Korea.
`
`
`
`Non-Final Office Action for U.S. Appl. No. 13/896,801, dated Sep.
`
`18, 2015, 13 pages.
`
`2016, 13 pages.
`Advisory Action and AFCP 2.0 Decision for U.S. Appl. No.
`
`
`
`
`13/896,801, mailed Apr. 11, 2016, 4 pages.
`
`
`
`Notice of Allowance for U.S. Appl. No. 13/896,801, dated May 6,
`2016, 8 pages.
`
`
`
`
`
`
`
`2015-524897, dated Apr. 5, 2016, 5 pages.
`
`
`
`
`
`
`2015-7005521, dated Nov. 10, 2015, 12 pages.
`
`
`
`International Search Report and Written Opinion for PCT/IB2013/
`
`H04W 76/046
`
`056331, dated Dec. 18, 2013, 18 pages.
`International Preliminary Report on Patentability for International
`
`
`
`
`
`
`Patent Application No. PCT/IB2013/056331, dated Nov. 17, 2014,
`15 pages.
`
`
`20, 2016, 14 pages.
`
`
`
`
`
`7005521, dated Sep. 8, 2016, 3 pages.
`
`
`
`
`
`705572, dated Sep. 30, 2016, 5 pages.
`
`
`
`Author Unknown, "3rd Generation Partnership Project; Technical
`
`
`
`
`dated Jul. 14, 2016, 16 pages.
`
`
`
`Specification Group Radio Access Network; Radio Resource Con­
`*cited by examiner
`
`
`
`
`trol (RRC); Protocol Specification (Release 11 )," 3rd Generation
`
`2706794 A2 3/2014
`
`EP
`
`GB WO 2011060998 Al * 5/2011
`
`KR 1020110110857 A 10/2011
`KR
`
`1020120052410 A 5/2012
`RU
`2335852 C2 10/2008
`RU
`2433571 C2 11/2011
`WO
`0217573 Al 2/2002
`WO
`2011102771 Al 8/2011
`WO
`
`2012099387 A3 7/2012
`WO
`
`2014049198 Al 4/2014
`
`(51)Int. Cl.
`H04W 76104(2009.01)
`
`(2006.01)
`
`(56)
`
`
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`Final Office Action for U.S. Appl. No. 13/896,801, dated Feb. 25,
`
`2012/0307700 Al
`
`12/2012 Nordberg et al.
`
`2013/0336258 Al
`12/2013 Young et al.
`
`2014/00367 50 Al
`2/2014 Yavuz et al.
`
`2016/0219508 Al
`7/2016 Yavuz et al.
`
`FOREIGN PATENT DOCUMENTS
`
`Notice of Reasons for Rejection for Japanese Patent Application No.
`
`Notice of Preliminary Rejection for Korean Patent Application No.
`
`Non-Final Office Action for U.S. Appl. No. 15/090,277, dated Oct.
`
`Notice of Allowance for Korean Patent Application No. 2015-
`
`OTHER PUBLICATIONS
`
`
`
`First Examination Report for New Zealand Patent Application No.
`
`Official Action for Russian Patent Application No. 2015107042,
`
`IPR2022-00462
`Apple EX1001 Page 2
`
`

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`IPR2022-00462
`Apple EX1001 Page 3
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`
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`IPR2022-00462
`Apple EX1001 Page 4
`
`

`

`
`
`U.S. Patent Nov. 28, 2017 Sheet 3 of 8 US 9,832,726 B2
`
`IPR2022-00462
`Apple EX1001 Page 5
`
`

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`IPR2022-00462
`Apple EX1001 Page 6
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`
`IPR2022-00462
`Apple EX1001 Page 7
`
`

`

`
`U.S. Patent Nov. 28, 2017
`Sheet 6 of 8
`
`US 9,832,726 B2
`
`START
`
`NO
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`NO
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`YES
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`ER PREFERE
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`TION REQUES
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`
`FIG. 6
`
`IPR2022-00462
`Apple EX1001 Page 8
`
`

`

`
`U.S. Patent Nov. 28, 2017
`
`Sheet 7 of 8 US 9,832,726 B2
`
`START
`
`YES
`
`L.. 6008
`: START TIMER WITH VALUE 1
`START TIMER WITH VALUE
`
`FOR SWITCHING TO POWER
`
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`
`
`TO INDICATOR FOR NORMAL
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`
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`
`INFORMATION
`
`FIG. 7
`
`IPR2022-00462
`Apple EX1001 Page 9
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`

`

`
`U.S. Patent Nov. 28, 2017 Sheet 8 of 8
`
`US 9,832,726 B2
`
`WO
`26
`
`RADIO SUBSYSTEM
`28
`
`DD
`DD
`
`PROCESSING SUBSYSTEM
`
`34
`
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`
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`24
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`
`42
`
`FIG. 9
`
`IPR2022-00462
`Apple EX1001 Page 10
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`

`

`
`
`US 9,832,726 B2
`
`1
`
`
`
`SYSTEMS AND METHODS FOR BLOCKING
`
`
`
`2
`
`power when the UE remains in CONNECTED mode. There
`
`
`for the DRX is a wide range sets available of configu ration
`
`
`
`
`parameters which can be utilized for different types of
`
`
`services, e.g., Voice over Internet Protocol (VoIP), gaming,
`
`
`
`RELATED APPLICATIONS 5 web browsing, and video telephony. DRX configuration is
`
`
`set by a base station, or eNodeB ( eNB). However, there may
`
`
`
`This application is a Continuation of U.S. patent appli­
`
`
`
`be scenarios in which the UE has information that is not
`
`
`
`cation Ser. No. 13/896,801, filed May 17, 2013, now U.S.
`
`
`
`available at the base station that may be beneficial when
`Pat. No. 9,445,364, which claims the benefit of provisional
`
`
`
`
`
`setting the DRX for the UE. As such, there is configu ration
`
`
`
`patent application Ser. No. 61/678,791, filed Aug. 2, 2012, 10
`
`
`
`
`a need for systems and methods for signaling such infor­
`
`the disclosures of which are hereby incorporated herein by
`
`
`mation from the UE to the base station.
`reference in their entirety.
`
`
`
`EXCESSIVE TRANSMITTER MESSAGE
`
`SIGNALING
`
`FIELD OF THE DISCLOSURE
`
`SUMMARY
`
`BACKGROUND
`
`15
`The present disclosure relates to transmitting assistance
`
`
`
`
`
`
`
`The present disclosure relates to signaling of assistance
`
`
`information from a first node to a second node. In particular,
`
`
`
`information from a wireless transmitter to a wireless
`
`
`
`
`systems and methods are disclosed for transmitting assis­
`receiver and more specifically relates to blocking excessive
`
`
`
`
`
`
`tance information from a first node to a second node while
`signaling of assistance information from a wireless trans­
`
`
`
`
`In one embodiment, a first 20 avoiding excessive sign aling.
`
`
`
`mitter to a wireless receiver.
`
`node includes a wireless transmitter and a wireless receiver.
`
`
`In response to transmitting a preference indicator for a first
`configu ration to a second node via the wireless transmitter or
`
`
`
`
`
`receiving a reconfiguration request associated with the pref-
`
`
`
`There are many scenarios in which a wireless device may
`
`
`
`25 erence indicator for the first configuration, the first node
`
`
`
`
`frequently send messages to another wireless device to
`
`
`starts a timer set to a value that defines an amount of time
`
`
`
`
`indicate a changing preference for a particular configu ration
`
`
`
`before the first node is permitted to transmit a preference
`
`
`
`
`for a connection between the wireless devices. One such
`
`
`
`indicator for a second configuration to the second node. The
`
`
`
`
`scenario is within the context of a work item on enhance­
`
`
`
`
`
`first node then blocks transmission of the preference indi-
`
`
`ments for Diverse Data Applications (eDDA) in 3rd Gen­
`
`
`
`
`
`
`eration Partnership Project (3GPP) Radio Access Network 30 cator for the second configuration to the second node until
`
`
`
`
`
`(RAN) Work Group 2 (WG2), which is referred to as 3GPP the timer has expired. In this manner, excessive signaling of
`RAN2.
`
`
`
`preference indicators from the first node to the second node
`is avoided.
`
`
`
`Efficient power consumption is one of the important
`In one embodiment, the first node is a wireless device
`
`
`
`
`
`characteristics of a wireless device ( e.g., a User Equipment
`
`
`
`
`communications network, 35 configu red to operate in a cellular
`
`
`
`
`(UE), which is sometimes referred to as a user element) in
`
`
`
`
`
`a cellular communications network. In today's
`
`
`and the second node is a base station of digital world, the cellular com-
`
`
`
`munications network. Still further, in one embodiment, the
`
`wireless devices tend to be always "connected" to the
`
`
`
`preference indicator for the first configuration is a preference
`
`
`
`
`cellular communications network especially due to the
`
`
`
`indicator for a normal power configuration, and the prefer­
`
`
`
`
`popularity of social networking applications. These appli­
`
`
`ence indicator for the second configuration is a preference
`
`
`
`cations are usually delay-tolerant as opposed to other appli-40
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`indicator for a power efficient configuration.
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`cations, such as video telephony or web browsing, that have
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`In one embodiment, a wireless device configured to
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`traffic with delay-sensitive characteristics. Social network-
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`operate in a cellular communications network operates to
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`ing applications generate intermittent packet transmissions
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`initiate an assistance information procedure and perform the
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`that are usually small in size yet invoke procedures which
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`assistance information procedure to determine whether to
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`prompt relatively high energy consumption. Hence, social
`45
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`block or initiate transmission of assistance information
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`networking applications may cause an inconvenient user
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`including a preference indicator for a desired power con­
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`experience due to the need to frequently recharge the battery
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`communications of the cellular figu ration to a base station
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`of the wireless device (i.e., more than once per day).
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`network. In one embodiment, performing the assistance
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`3GPP has been developing the specifications on the
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`information procedure includes determining whether the
`Evolved Universal Terrestrial Radio Access Network
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`50
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`preference indicator for the desired power configuration is
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`(E-UTRAN), which includes Long Term Evolution (LTE)
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`different than a most recent preference indicator transmitted
`concepts. In RAN2, a Work Item (WI) on eDDA has been
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`by the wireless device to the base station. If so, the wireless
`created in LTE Release 11 (Rel-11) to identify and specify
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`device determines whether a timer has expired. In one
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`mechanisms that can enhance the ability of LTE to handle
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`embodiment, the timer is set to a value that defines an
`diverse traffic profiles such as those of social networking
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`55
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`amount of time that must expire before transmission of the
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`applications. The objective of this WI is to identify improve­
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`assistance information including the preference indicator for
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`ments that can increase the network efficiency, extend UE
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`the desired power configuration and is started in response to
`and enhance battery lifetime, reduce sign aling overhead,
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`transmitting the most recent preference indicator to the base
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`user experience and system performance under such traffic
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`60 station. If the timer has not expired, the wireless device
`loads.
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`One of the
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`blocks focus areas is to change the UE behavior to transmission of the assistance information including
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`reduce the power consumption
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`the preference of the UE when possible. In indicator for the desired power configuration.
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`previous releases of the
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`If the timer has expired, the wireless LTE specifications, timers were device initiates trans­
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`introduced to enable switching from
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`mission of CONNEC TED to IDLE the assistance information including the prefer-
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`mode once the timers expire and when there is no data to 65 ence indicator for the desired power configuration.
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`send. Further, a Discontinuous Reception (DRX) mode was Those skilled in the art will appreciate the scope of the
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`introduced for LTE in 3GPP standards to conserve battery present disclosure and realize additional aspects thereof after
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`IPR2022-00462
`Apple EX1001 Page 11
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`

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`US 9,832,726 B2
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`3
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`4
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`BRIEF DESCRIPTION OF THE DRAWING
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`FIGURES
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`reading the following detailed description of the preferred
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`mitter and a wireless receiver to signal a change in a
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`preference of the first node related to a wireless connection
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`embodiments in association with the accompanying drawing
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`between the first and second nodes. However, frequently
`figures.
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`transmitting information containing the preference(s) of the
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`5 first node to the second node may cause excessive signaling
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`in a corresponding wireless network. It is beneficial or, in
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`some cases, necessary to avoid such excessive signaling in
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`order for the wireless network to utilize its resources more
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`The accompanying drawing figures incorporated in and
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`efficiently and thus provide a better service experience to its
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`forming a part of this specification illustrate several aspects
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`10 users. Thus, as discussed below in detail, embodiments
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`of the disclosure, and together with the description serve to
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`disclosed herein provide mechanisms by which preference
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`explain the principles of the disclosure.
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`information, or any other type of assistance information, can
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`FIG. 1 illustrates the operation of a node including a
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`be communicated from the first node to the second node
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`wireless transmitter and a wireless receiver to avoid exces­
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`while avoiding excessive sign aling.
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`sive signaling of assistance information to a second node
`One particular wireless network in which excessive sig­
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`according to one embodiment of the present disclosure;
`15
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`naling of assistance information may occur is in cellular
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`FIG. 2 illustrates the operation of a node including a
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`communications networks operating according to the Long
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`wireless transmitter and a wireless receiver to avoid exces­
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`Term Evolution (LTE) Release 11 (Rel-11) and subsequent
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`sive signaling of assistance information to a second node
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`specifications. More specifically, the extension of wireless
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`according to another embodiment of the present disclosure;
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`device, or User Equipment or User Element (UE), battery
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`FIG. 3 illustrates a base station of a cellular communica-
`20
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`lifetime is considered to be a challenge in the Evolved
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`tions network and a wireless device, wherein the wireless
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`Universal Terrestrial Radio Access Network (E-UTRAN)
`device operates to avoid excessive signaling of assistance
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`consisting ofLTE and System Architecture Evolution (SAE)
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`information to the base station according to one embodiment
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`concepts. Enhanced Discontinuous Reception (DRX) mode
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`of the present disclosure;
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`rd Generation Partnership Project
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`25 is introduced for LTE in 3
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`FIG. 4 illustrates the operation of the wireless device of
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`(3GPP) standards to conserve battery power when the wire­
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`FIG. 3 to avoid excessive signaling of assistance informa­
`less device is in CONNECTED mode. There are a wide
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`tion to the base station according to one embodiment of the
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`range of configu ration sets available for the DRX param-
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`present disclosure;
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`eters, which can serve for different types of services, e.g.,
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`FIG. 5 illustrates the operation of the wireless device of
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`gaming, web browsing, and video telephony. DRX configu­
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`FIG. 3 to avoid excessive signaling of assistance informa-30
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`ration is normally set by a base station, or eNodeB (eNB).
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`tion to the base station via an assistance information proce­
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`However, there may be scenarios in which the wireless
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`dure according to one embodiment of the present disclosure;
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`device has information that is not available at the base
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`FIG. 6 is a flow chart that illustrates the assistance
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`station. For example, the wireless device may have infor-
`information procedure of FIG. 5 according to one embodi­
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`35 mation that indicates that a user of the wireless device
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`ment of the present disclosure;
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`prefers delay-tolerant operation for a longer battery life. This
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`FIG. 7 is a flow chart that illustrates a transmission
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`information could assist the base station in deciding which
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`process initiated by the assistance information procedure of
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`DRX configuration to use for the wireless device. Therefore,
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`FIG. 6 according to one embodiment of the present disclo­
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`such information, hereafter referred to as assistance infor-
`sure;
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`40 mation, is considered useful to the base station. Notably, as
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`FIG. 8 is a block diagram of the wireless device of FIG.
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`used herein, "assistance information" is any information
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`3 according to one embodiment of the present disclosure;
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`known to a first node that that is considered useful to a
`and
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`second node. In one preferred embodiment, assistance infor­
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`FIG. 9 is a block diagram of the base station of FIG. 3
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`mation is information that is indicative of a preference for
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`according to one embodiment of the present disclosure.
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`45 DRX settings that indicates a wireless device's, or UE's,
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`willingness for delay-sensitive or delay-tolerant operation
`and thus its power preference.
`While the transmission of assistance information, such as
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`The embodiments set forth below represent the necessary
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`a power preference, from a first node to a second node is
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`information to enable those skilled in the art to practice the
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`50 considered beneficial for enhancing a battery lifetime of the
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`embodiments and illustrate the best mode of practicing the
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`first node, the inventors have found that excessive signaling
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`embodiments. Upon reading the following description in
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`of assistance information may occur due to frequent change
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`light of the accompanying drawing figures, those skilled in
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`of preferences if triggering is left to the first node for
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`the art will understand the concepts of the disclosure and
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`implementation and no mechanism is provided to block
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`will recognize applications of these concepts not particularly
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`Excessive information. 55 excessive assistance sign aling of
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`addressed herein. It should be understood that these con­
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`signaling may result not only in an increase in power
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`cepts and applications fall within the scope of the disclosure
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`consumption at the first node but also in poor service quality
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`and the accompanying claims.
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`The present disclosure relates
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`for other to transmitting assistance nodes in the cellular communications network due
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`information from a first node to a second node. In particular, to signaling overload in the second node. As such, there is
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`systems and methods are disclosed for transmitting assis-60 a need for mechanisms to avoid such excessive sign aling in
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`tance information from a first node to a second node while order to be able to benefit from the battery lifetime gain
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`avoiding excessive signaling. Before discussing embodi­resulting from the signaling of the assistance information to
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`ments of the present disclosure, a brief discussion of one the base station. At the same time, it is also important to
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`problem addressed by the embodiments disclosed herein is allow the first node to indicate to the second node that its
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`beneficial. In many scenarios, it may be beneficial for a first preference has changed in a timely manner, which is par­
`65
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`node having a wireless transmitter and a wireless receiver to ticularly important when the first node starts using delay­
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`send information to a second node having a wireless trans-sensitive services or applications.
`
`DETAILED DESCRIPTION
`
`IPR2022-00462
`Apple EX1001 Page 12
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`

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`US 9,832,726 B2
`
`5
`6
`Notably, transmissions of assistance information may be
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`(preference indicator 1) to the node 12 via the wireless
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`limited using a timer similar to the network configured timer
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`transmitter 14 of the node 10 (step 1000). The first configu­
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`(T323) in Wideband Code Division Multiple Access
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`ration is a first configuration (e.g., a normal power configu-
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`(WCDMA) cellular communications networks. A mecha­
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`ration) for a wireless connection between the nodes 10 and
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`nism has been specified for WCDMA in 3GPP Technical 5
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`12.While not illustrated, the node 12 utilizes the preference
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`Specification (TS) 25.331 that requires the expiration of a
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`indicator from the node 10 to decide whether to reconfigu re
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`receiver configured timer before releasing the signaling
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`the wireless connection. Note, however, that the node 12
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`connection rather than just releasing the sign aling connec­
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`does not necessarily reconfigure the wireless connection in
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`tion when the wireless device desires. In WCDMA, this
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`response to reception of the preference indicator. The deci­
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`timer is configurable by the cellular communications net-10
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`sion of the node 12 may be made based on additional factors.
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`work and is available in the system broadcast. Once the
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`In response to transmitting the preference indicator for the
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`timer expires, the wireless device can send a signaling
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`timer first configu ration to the node 12, the node 10 starts a
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`connection release indication message.
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`that is set to a value that defines an amount of time that must
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`In WDCMA, all preference indicator messages to be sent
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`expire before the node 10 is permitted to transmit a prefer­
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`ence indicator for a second configuration (preference indi­
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`by the wireless device, regardless of their sensitivity to 15
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`cator 2) to the node 12 (step 1002). The second configuration
`delay, must wait for the same amount of time to expire.
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`is a second configuration (e.g., a power efficient configura­
`However, the inventors have found that some preference
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`tion) for the wireless connection between the nodes 10 and
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`indicators may be associated with delay-sensitive operations
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`12.The value to which the timer is set can vary depending
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`and therefore need to be transmitted sooner than other
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`In general, the value for particular implementation. 20 on the preference indicators. For instance, in LTE, a DRX power
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`the timer may be any value greater than or equal to zero.
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`preference indicator for a normal, or default, power con­
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`However, in one preferred embodiment, the value to which
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`figuration may be delay sensitive (i.e., intolerant to delay)
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`the timer is set is inversely related to a delay sensitivity of
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`whereas a DRX power preference indicator for a power
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`operations associated with the second configuration. In other
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`efficient configuration may be delay insensitive (i.e., tolerant
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`to delay). Thus, switching
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`25 words, from a delay tolerant (i.e., power in one preferred embodiment, the value to which the
`
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`efficient) operation
`
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`timer is to a delay sensitive operation should be set is a function of the preference indicator for which
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`prioritized compared to switching
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`the node 10 is to block transmission from a delay sensitive until the timer has
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`operation to a delay tolerant operation.
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`expired. As such, as discussed As an example, if the second configuration is a
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`power efficient configuration associated with operations
`below, embodiments of the present disclosure avoid exces­
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`which are delay insensitive ( or delay tolerant), then the value
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`sive signaling utilizing a timer that can be set to different
`30
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`to which the timer is set may be large (i.e., larger than a
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`values depending on the content of the assistance informa­
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`value that would be used for a normal power configu ration).
`tion to be transmitted.
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`As one particular example, the value for the timer for the
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`In this regard, FIG. 1 illustrates the operation of a node 10
`
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`preference indicator for the second configuration where the
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`to sign al assistance information to a node 12 in a manner that
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`second configu ration is associated with delay insensitive
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`avoids excessive signaling according to one embodiment of 35
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`operations may be tens or hundreds of seconds.
`
`
`the present disclosure. The node 10 includes a wireless
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`Once the timer is started, the node 10 then blocks trans-
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`transmitter (TX) 14 and a wireless receiver (RX) 16. L ike­
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`mission of the preference indicator for the second configu­
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`wise, the node 12 includes a wireless transmitter 18 and a
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`ration to the node 12 until the timer started in step 1002 has
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`wireless receiver 20. As discussed below, in one embodi­
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`expired (step 1004). More specifically, events at the node 10
`
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`ment, the node 10 is a wireless device ( e.g., a UE) in a 40
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`can trigger an attempt to transmit the preference indicator
`
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`cellular communications network, and the node 12 is a base
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`
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`for the second configuration. For example, if the second
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`station of the cellular communications network. However,
`
`
`a user of the configu ration is a power efficient configuration,
`
`
`
`the nodes 10 and 12 are not limited thereto. Rather, the nodes
`
`
`node 10 may place the node 10 in a power efficient mode. In
`
`
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`10 and 12 are any type of devices in any type of wireless
`
`
`response, the node 10 may attempt to transmit the preference
`
`
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`network in which transmission of assistance information
`45
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`wire-indicator for the power efficient configu ration for the
`
`
`from the node 10 to the node 12 is beneficial. Again, the
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`
`
`less connection to the node 12. If the timer started in step
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`assistance information is generally any information known
`
`
`1002 has not expired, the node 10 blocks transmission of the
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`to the node 10 that is beneficial to the node 12. In one
`
`
`
`
`
`preference indicator for the power efficient configuration. In
`
`
`embodiment, the assistance information is information
`
`
`
`this manner, excessive signaling of preference indicators
`
`
`
`known to the node 10 that is beneficial to the node 12 when 50
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`
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`from the node 10 to the node 12 is prevented. At some point,
`
`
`
`
`configuring a wireless connection between the nodes 10 and
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`
`
`after the timer has expired, the node 10 transmits the
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`12.Still further, in one particular embodiment, the assistance
`
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`preference indicator for the second configuration to the node
`information is or includes a preference indicator for a power
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`12 via the wireless transmi