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Simply Be tter W ir eless. Proposals for LTE Operation In Unlicensed Spectrum - Dave Wright Advanced Technologist Ruckus Wireless -- -

Proposals for Lte Operation in Unlicensed Spectrum

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proplsal for lte operation in ulicensed spectrum

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  • Simply Better W ireless.

    Proposals for LTE Operation In Unlicensed Spectrum

    -

    Dave Wright Advanced Technologist Ruckus Wireless

    - - -

  • 0 Wi~Fi has seen unprecedented succes.s 0 Simple integration - over 10 Billion Wi-Fi enabled devices => Widespread adoption across virtually every market segment 0 Massive scale with .-v$140B/year economic impact in US

    0 LTE is jumping into 5 GHz spectrum 0 LTE-U, LAA-LTE, LWA

    Fair sharing is the future

    '.""'age 2

    \ \ \

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  • Uni n d et m F'air Access is critical to protecting Wi~F' i users and services

    0 Listen before talk (LBT) is not supported in pre-standard LTE-U proposals CSAT is an optional best effort technique

    0 LBT must be mandatory to ensure fair sharing for L E-' &_A ~ Wi-Fi community will lobby for LBT as part of 3GPP standard

    0 LWA utilizes 802.11 CSMIA/CA for medium access

    ;'aqe 3 ~RUCl

  • L TE-U and LAA-L TE

    \ \ LTE \ \

    PHY'MAC \ \ L. eel \ \ icens \. '

    UE 9aOC)or11na: CecnM .

    A.99~11(1:1\ SOttt LTE l> Lll.A. Rx ;lulu:c rit}

    LTE PHY1MAC Unlicen!>e

    d

    What are they? Require a licensed band 'anchor'

    ,. Unlicensed for opportunistic data boost linked to Small Cell architectures Initially downlink only, uplink to follow

    LTEU w/o LBT, CSATtype access (prestandard) , LAA w LBT (Rei 13 proposed standard)

    What are the expected benefits? ,, Native Integration to Mobile Core , Improvements in user experience ,. No additional spectrum cost

  • LTE in Unlicensed Spectrum using 802.11 u Based on PDCP splitting/combining capabilities in LTE

    eNB and UE modem 0 eNB and AP enhanced to support "X2-like" interface

    for bot h control and data plane forwarding 0 AP also provides Unlicensed Environment informat ion

    to eNB as t raffic balancing metric 0 AP encapsulates LTE PDCP datagrams in 802.11 MAC

    f rames for t ransmission over t he air 0 Wi-Fi coexistence via 802.ll(CSMA/CA?) 0 3GPP Release 13 Study Item

    Paqe 5

    "X2 like'~ LTE eNB

    ' '\. LTE ' PHY/MAC',

    UE Supporting: Dual

    ' '

    1 WiFi AP ,' or WLC

    1' , 802.11

    ,' PHViMAC

    Connectivity PDCP

    Aggregation RUCl

  • LTE Duty Cycle 5 GHz E-UTRA ( e.19. CSAT) 3.5 GIHz?

    LTE LBT 5 GHz E-UTRA (specifics TBO) 3.5 GIHz?

    802.11 802.11 5 GHz (CSMA-CA?) 2.4 GHz*

    None

    3GPP {Rei 13 SI)

    3GPP {Rei 13 SI)

    Common

    Downlink (S,DL)

    Rei 1 3 Downlink Future +Uplink

    Downlink and Uplink

    LTE-U Capable eNB

    LAA Capable eNB.

    Wi-Fi AP with LWA

    arac eri ties o A Licensed Spectrum 'iAnchor'' o Unlicensed/Licensed integration is

    at the RAN! stan,dard EPC interlaces

  • u Ii

    Nov: Initial L TE in Unlicensed Spectrum Proposal

    Page 7

    d

    .laMHJirl Series of liai,sons between IEEE and 3GPP on LAA-LTE

    Jan: 1 s1 3GPP Workshop 3GPP Approves LWA on L TE in Un licensed Study 1 em (Release 13/ )~C:,~t~un'::l 3GPP Workshop FCC opens LTE -on L TE in Unlicensed IJ/LA.A Public lice or Filings -.r..

    3GPP Expected t o ~]F.1ffi>p Approves LAA Jun: 3GPP E~pected lo finalize Release 13 (wi th LAA

    St udy Item ~:Release 13 .~ approve LAA Work Item and LWA) T LAAL: E

    ...

    LWA

    2014 .A I

    .. LTEU Dec: LTE-U Forum announced

    11t1e:..iairc V and ors and Operators plan L TE-U Trials

    ~RUCl

  • ru 0 Spectrum Sharing highly favored by regulatory agencies 0 Sharing regimes can provide:,

    0 Access Flexibility: e.g. 3.5 GHz Incumbent, priority, and general authorized => Frequency Flexibility: e.g. Priority access to 10 MHz paired in various areas 0 Time Flexibility: e.g. Long-term, short-term, or on-demand

    0 Sharing regimes require careful coordination 0 3.5 GHz is a high priority for shared access, dense deployments

    I

  • A a s rces

    0 Biog series at www.theruckusroom.net

    0 Recent Webinars: 0 Dan Rabinovitsj with Qualcomm

    http://www. f iercewi re less .corn/off er/apri I ?sou rce=I isti ng 0 Dave Wright with Cablelabs

    http://www. wbal'l1iance. com/events/webi nars/ruckus-wi reless-and-wlba-webi nar-2/

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