Huawei Railway Backbone OTN Solution Backbone OTN Universal Transport Network National Backbone OTN

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  • Huawei Railway Backbone OTN Solution

  • Challenges to Existing Railway Backbone Networks ◆ Railways are going both digital and wireless. Smart management, HD video surveillance,

    Wi-Fi connections, and wireless transmission services are becoming increasingly important to railway systems. Railway backbone networks face huge challenges.

    Railway Bureau Backbone OTN

    Universal Transport Network

    National Backbone OTN

    Railway Corporation

    n*100G

    n*10G

    40G/10G 40G/10G

    n*10G

    Station LSP/PW

    ODUk/VC/λ

    Wavelength Dispatch Center

    U2000

    High Reliability and Security • Ensure security by physically isolating mission-critical services that are related to the security of railway systems. • Ensure high reliability by enabling networks to prevent multiple points of failure.

    Ultra-High Bandwidth • Meet the requirements of increased distances and sites and new services, such as video, Wi-Fi, wireless, and HD video surveillance.

    10G λ

    40G λ

    100G λ

    400G λ

    1T/2T λ

    RTU

    Telephone

    GSM-R

    OA

    Video Conference

    CCTV

    Smart OAM • Smart health monitoring and tuning • Fast fault diagnosis

    SLA Meter

    User A Video Stream

    24H History Report Service 2 4 6 8 10 12 14 16 18 20 22 24

    Delay Jitter Packet Loss

    Tra�c

  • Huawei Railway Backbone OTN Solution 100G coherent communication provides ultra-high bandwidth.

    Wavelengths and channels are physically isolated to avoid interference and improve security.

    Beyond 100G • 6000 km • Reliable

    No Tx-DSP: 100G pulse width > 10G

    With Tx-DSP: 100G pulse width ≈ 10G

    Tx-DSP Pre-Shaping

    Launch power = 10G

    RZ Modulation &

    Bit Interleaving -4 -2 0 2 4 6 8 10 120 1

    2

    3

    4

    Q P

    en al

    ty (d

    B )

    NRZ aligned RZ aligned NRZ interleaved RZ interleaved

    Industry QPSK: Guard band > 100 GHZ

    Huawei QPSK: Guard band

    ≈ 0

    Enhanced QPSK

    Guard Band

    Advanced FEC

    Algorithm N-bit quantization, 100G NCG > 11.8 dB

    5.4 5.6 5.8 6 6.2 6.4 10

    LDPC-CC(10032,4,24): LDA I = 12

    LDPC-BC(18360,4,24): LDA I = 12 max

    max

    B it

    E rr

    or R

    at e

    -15

    10-2

    10-3

    10-4

    10-6

    10-7

    10-8

    10-9

    10-10

    10-11

    10-12

    10-13

    10-14

    10-5

    Q (dB)

    0.3 dB improve from LDPC to BICC

    *BICC: Block Interleave Convolution Code

    72-hour High & Low Temperature Cycling Veri�cation

    One Cycle 12-hour

    Three Cycles

    5℃/min

    +25℃

    +50℃

    -10℃ 12-hour

    Partner with the Best Quality

    Supplier

    MS-OTN 10G/100G

    ODU2

    ODU2

    ODU0

    ODU1STM-N

    VCTelephone

    Wireless

    TDCS/CTC

    LTE TMIS

    VS VC

    Development Transport

    PIS

    Marketing Internet

    Communication

    VC

    VC

    ODU0

    ODU0

    ODU0

    ODU0

    ODU0

    All support 1588v2

    Total BW: 101.5–107.5G

  • OTN ensures high network reliability by providing multiple types of protection to prevent multiple points of failure.

    1

    2

    3

    4

    5

    Equipment 1+1 protection

    Client 1+1 protection

    ODUk SNCP protection

    Intra1+1 protection

    Optical line 1+1 protection

    Server

    FC/GE/10GE

    Server

    FC/GE/10GE

    Server

    FC/GE/10GE

    Server

    FC/GE/10GE

    Server

    FC/GE/10GE

    OLP

    OTU-1 #1

    OTU-2 #2

    OLP/DCP

    OTU-1

    OTU-2

    T O A

    NS2

    NS2

    OTU

    OTU OLP

    The U2000 can monitor management and commissioning services, simplifying O&M.

    OSNR, Power, BER

    Online monitor

    Fast diagnosis

    Automatic optimization

    Online Optical Doctor

    Online test

    High- precision

    Optimal path

    Online Latency Measurement

    E2E latency

    xx km

    Online test

    Online veri�cation

    Fast diagnosis

    Online Fiber Doctor

    OSC board (w/i eOTDR)

  • Product Family OSN 8800 T16 | OSN 8800 T32 | OSN 8800 T64

    OSN 8800 T16 OSN 8800 T32 OSN 8800 T64

    16 32 64Service Slots

    Maximum Line Rate

    900 × 498 × 295 900 × 498 × 580 450 × 498 × 295Dimensions(H x W x D)(mm)

    ODUk (k=0, 1, 2, 2e, 3, 4, �ex)

    200G

    1.6T ODUk 3.2T ODUk 6.4T ODUkOTN

    Packet

    TDM

    ODUk

    800G

    640G VC-4 20G VC-3/VC-12

    1.6T

    1.28T VC-4 80G VC-3/VC-12

    -

    1.28T VC-4 80G VC-3/VC-12

    Electrical Switching Capability

    OSN 9800 U16 | OSN 9800 U32 | OSN 9800 U64

    OSN 9800 U16 OSN 9800 U32 OSN 9800 U64

    14 32 64Service Slots

    1900 × 498 × 295 2200 × 600 × 600847 × 442 × 295Dimensions(H x W x D)(mm)

    ODUk (k=0, 1, 2, 2e, 3, 4, �ex)

    400GMaximum Line Rate

    5.6T ODUk 12.8T ODUk 25.6T ODUkOTN

    Packet

    TDM

    ODUk

    2.8T

    1.12T VC-4 80G VC-3/VC-12

    6.4T

    2.56T VC-4 80G VC-3/VC-12

    12.8T

    5.12T VC-4 80G VC-3/VC-12

    Electrical Switching Capability

  • 2 8 5 (h )

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