235985018 Carrier Aggregation

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    Copyright© ANRITSU

    Carl Anderson

    Sr. Business Development Manager

    Carrier Aggregation

    July 2014

    Mobile Devices Solutions

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    Topics

    2

    • The Case for Carrier Aggregation

    • Carrier Aggregation: Concepts, Drivers & Roadmap

    • Network Deployment Options

    • Overview of Carrier Aggregation in LTE-A

    • Testing of Carrier Aggregation  –  Anritsu Solutions for LTE Carrier Aggregation

    • Conclusions and Q&A

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    The Case for

    Carrier Aggregation Mobile Devices Solutions

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    Mob ile Data Usage

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    • Huge growth is predicted

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    Spectrum Congest ion

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    • Technology is reaching the limits of spectral efficiency (bps/Hz)

    • Ever increasing user demand (applications) requires more bandwidth

    • Few areas with large contiguous blocks of spectrum

     – Mainly at frequencies greater than 3GHz

    •  Available “prime” spectrum is fragmented in small blocks

    US Spectrum Allocation 300 MHz to 3 GHz

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    Carrier Aggregation:

    Concepts, Drivers & Roadmap Mobile Devices Solutions

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    Carr ier Aggregat ion (CA) Concepts

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    • Increasing RF and Baseband chipset integration opens the possibility to receive and transmit on more than one carrier simultaneously

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    CA Drivers

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    • Intra-band Contiguous

    aggregation driven by >5 MHz 3G licenses and spectrum becoming

    available from WRC07

     – Scale to wider bandwidths while still supporting existing UEs

    on a single CC • Inter-band aggregation driven by

    existing licenses, mergers and

    acquisitions, and digital dividend

     – Piece together spectrum to

    compete with carriers having

    contiguous spectrum

    Multi-Carrier UE

    North American

    Licensed Spectrum

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    CA Roadmap for LTE

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    1 4 20

    MHz

    300 Mbps

    4x4MIMO

    4Layers

    Release 8

    1 4 20

    MHz

    75 Mbps

    SISO/SIMO

    1Layer

    Release 8

       D    O    W   N

       L   I    N    K

       U    P    L   I    N    K

    1 4 40

    MHz

    600 Mbps

    4x4MIMO

    4Layers

    Release 10

    1 4 40

    MHz

    300 Mbps

    2x2MIMO

    2Layers

    Release 10

    1 4 100

    MHz

    3000 Mbps

    8x8MIMO

    8Layers

    Release 12+

    1 4 100

    MHz

    1500 Mbps

    4x4MIMO 4Layers

    Release 12+

    1 4 40

    MHz

    1200 Mbps

    8x8MIMO

    8Layers

    Release 11

    1 4 40

    MHz

    600 Mbps

    4x4MIMO 4Layers

    Release 11

    Note: Likely Peak Performance Indicated

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    RFT-103 Carrier

     Aggregation

    WI-162 E-UTRA Carrier

     Aggregation

    Ind us try and Cert if icat ion Trends for CA

    Trial/Planning: 30

    Certification Start 2014Certification Started

    Commercial Carriers Deploying/Pre-

    Commercial

    …& 3 more in

    Kuwait and

    Saudi Arabia

    http://www.globalcertificationforum.org/?view=featured http://www.ptcrb.com/index.cfm?tab=Home

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    Network Deployment

    Options Mobile Devices Solutions

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    Netwo rk Deployment Opt ion s

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    Identical Coverage

    Intra-band Contiguous CCs

    Diverse Coverage

    • Using wideband transceiver in the eNB • Improve coverage at sector edges

    f 1 

    f 2 

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    Netwo rk Deployment Opt ion s (cont inued)

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    Remote Radio Heads

    Inter-band Non-Contiguous CCs

    CA in a Heterogeneous Network

    f 1 

    f 2 

    • High frequency carrier used to provide hot-

    spots of greater capacity

    • Pico-cells / femto-cells used to offload the

    macro-cell

    • Intra-cell interference coordination used to

    increase capacity

    Note: Conceptual only. Distributed antennas not currently supported by 3GPP

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    Carrier Aggregation

    in LTE-A Mobile Devices Solutions

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    CA Band No tat ion and Rel. 11 Implementat ions

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    • Format for CA Band Notation

    Intra-Band

    Contiguous

    Intra-Band

    Non-Contiguous

    Inter-Band

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    CA Band No tat ion and Rel. 11 Implementat ions

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    • Rel. 10 and 11 Examples

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    CA UE Bandw idth Classes

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    Channel bandwidth BW Channel

     [MHz]  1.4  3 5  10  15  20 

    Transmission bandwidth configuration  N  RB

      6 15 25 50 75 100

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    CA Band /Bandw idth Class Combinat ion s

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    • Format for CA Band/Bandwidth Class Notation

    Inter-BandIntra-Band

    Contiguous

    Intra-Band

    Non-Contiguous

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    CA Band /Bandw idth Class Combinat ion s

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    • Rel. 10 and 11 Band/Bandwidth Combinations

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    3 Carrier CA

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    • 3GPP RAN 4 is working on 3 Carrier Combinations as well as

    FDD+TDD for Release 12

    • The work needs to move to RAN5 and be finalized before test cases

    for these features are known

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    LTE-A CA Overv iew

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    • Uses R8/9 backward-compatible carriers as the basic building blocks

    • Signaling supports aggregation of up to 5 CCs in both UL and DL • One CC acts as the anchor (Primary) for mobility, others (Secondaries)

    are added/released through signaling on Primary

    • Supports Intra-band contiguous, non-contiguous, and Inter-band

    • Supports use of Remote Radio

    Heads and Relay Nodes

    • Supports both symmetric and

    asymmetric aggregations

    Note: Although signaling supports up to 5 CCs, 3GPP Releases support specific configurations 

    Release 10: In DL max 2 DL inter or intra-band contiguous or non-contiguous CCs,

    In UL max 2 intra-band contiguous CCs

    Release 11: In DL same as Rel10,

    In UL max 2 intra-band contiguous or non-contiguous CCs

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    Changes from LTE to LTE-A

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    • Introduction of PDSCH-only downlink

     – Cross-carrier scheduling with Carrier Identifier Field (CIF) in PDCCH

    • Measurements

     – New event A6 added for Scell change

    • DRX

     –  Added capability for S-Cell

    activation/deactivation • BSR

     – New BSR table added to support

    higher data rates

    PCC – Primary Component Carrier

    SCC – Secondary Component Carrier

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    LTE-A Upper Layers

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    • NAS

     – No impact; only uses

    P-Cell

    • RRC

     – New signaling for

    management of SCC

     – New measurement

    control

    • PDCP/RLC

     – Same architecture but

    need to handle higherdata throughputs

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    LTE Catego ries

    24

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    Carr ier

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