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4G Mobile Network & Applications
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4G Mobile Network & Applications

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I use this presentation for opening 4G Mobile Technology seminar sessions. Usually it will be continued with 1 other presentation on LTE, 1 on WiMAX II, and 1 on applications.

I use this presentation for opening 4G Mobile Technology seminar sessions. Usually it will be continued with 1 other presentation on LTE, 1 on WiMAX II, and 1 on applications.

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  • Very simple but effective presentation.

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  • 1. 4G Mobile Technologies
    An IEEE Comsoc Indonesia Chapter Lecture
  • 2. @kuncoro
  • 3. Mobile Communications
  • 4. Critical Factors for Wireless Development
  • 5. Web 2.0
  • 6. Growth of Advanced Mobile Devices
  • 7. Data Rate Requirements
    100
    INTERACTIVITY
    4G
    10
    EVDO
    STREAMING
    HSPA
    EVDO
    1
    EVDO
    MULTIMEDIA
    Peak data rate transmission (Mb/s)
    W-CDMA
    0.1
    MESSAGE
    CDMA-1X
    EDGE
    CDMA-2000
    0.01
    GPRS
    GSM
    0.001
  • 8. Data Rate vs Mobility
    Fast
    LTE
    4G
    Medium
    Mobile
    WiMAX
    Slow
    3G
    2010
    Fixed WiMAX
    Movable
    WLAN
    Hiperlan /2
    Stationary
    2000
    0.1
    1
    10
    100
  • 9. 4G Mobile Technology
  • 10. GSM
    UMTS WCDMA
    GPRS
    EDGE
    HSDPA
    HSUPA
    EVDO EVDV
    IS-95
    CDMA
    1x
    WiMAX
  • 11.
  • 12. 4G Objectives
  • 13. 4G Approaches
  • 14. All-IP Network
  • 15. Application
    Network
    API
    Services
    Mobility Mgmt
    Resource Mgmt
    QoS Mgmt
    Convergence Sublayer
    2G
    3G
    WiMAX
    4G
    Physical
    Layered NGMN Architecture
  • 16. Multiparty Conferencing
    Resource Sharing
    Virtual Collaboration
    Broadcasting
    Games
    ….
    Application
    Service
    SIP Applications Server
    Parlay / OSA
    ….
    SIP
    Diameter
    Session
    Control
    I-CSCF
    P-CSCF
    HSS
    S-CSCF
    MGCF
    SIP
    H.248
    MGW
    Access
    PSTN
    WiFi/WiMAX
    GPRS
    UMTS
  • 17. AS
    S-CSCF
    HSS
    P-CSCF
    IMS
    IMS
    Lain
    I-CSCF
    GGSN
    IMS
    Lain
    IMS, Internet Multimedia Subsystem
    CSCF, Call Session Control Function
    (Serving, Proxy, Interrogating)
    GGSN, Gateway GPRS Support Node
    SGSN, Serving GPRS Support Node
    UTRAN, UMTS Terrestrial Radio Access Network
    UMTS, Universal Mobile Telecom System
    HSS, Home Subscriber Server
    SGSN
    RNC
    UTRAN
    IMS
  • 18. AAA
    PDG
    S-CSCF
    HSS
    WiMAX CSN
    P-CSCF
    IMS
    I-CSCF
    GGSN
    IMS
    Lain
    SGSN
    SFM
    SFA
    WiMAX ASN
    RNC
    IP ROUTER
    UTRAN
    ASN
    Lain
  • 19. BGCF
    MGCF
    BGCF
    MGCF
    3GPP2
    PDF
    MGW
    MGW
    3GPP
    S-CSCF
    MRFC
    P-CSCF
    S-CSCF
    MRFC
    P-CSCF
    MS
    UE
    AS
    MRFP
    I-CSCF
    AAA
    AS
    MRFP
    HSS
    I-CSCF
    Data base
    SLF
    Position Server
    PDE
  • 20. IMS: Enhanced
    Voice
    Charging Function
    Subscriber Profile Function
    SIP
    Video Phone
    CFCS
    Signalling Function
    Application Policy Function
    SIP
    HTTP
    RTSP
    RTSP signal proxy
    Video Streaming
    RTSP
    HTTP signal proxy
    HTTP
    TV
    QoS Policy & Media Function
    Media Transfer Function
    RTP
    HTTP
    Web
  • 21. IPv6 Support
  • 22. Cognitive Radio
  • 23. Cognitive radio (CR), also related to software-defined radio (SDR), is a type of Radio in which communication systems are aware of their environment and internal state and can make decisions about their radio operating behavior based on that information and predefined objectives.
    Cognitive Radio
  • 24. DSA & CR
  • 25. IEEE 1900 is a suite to support cognitive radio (CR), dynamic spectrum access (DSA), and coexistence.
    Previous standards s.a. WiFi (802.11), Zigbee (802.15.4), and WiMAX (802.16) have included certain level of CR.
    CR will be related to dynamic spectrum access (DSA), which is the real-time adjustment of Spectrum Utilization in response to changing circumstances and objectives.
    The most interesting aspect is coexistence: resource selection to determine the type of wireless/mobile access.
    IEEE 1900
  • 26. SCC41 Working Groups
  • 27. Network Management
    Metropolitan
    Short-Range
    Cellular
    Network reconfiguration management
    WiMAX
    WiMAX II
    (806.16m)
    WiFi
    (802.11g)
    WiFi NG
    (802.11m)
    3G
    4G
    DSA-enabled
    Radios
    IEEE
    P1900.4
    P1900.4
    Terminal
    P1900.4
    Terminal
    Legacy
    terminal
    Terminal reconfiguration management
    Terminal reconfiguration management
    Multiplatform Portability
  • 28. Access Scheme
  • 29. New access schemes like Orthogonal FDMA (OFDMA), Single Carrier FDMA (SC-FDMA), Interleaved FDMA and Multi-carrier CDMA (MC-CDMA) are gaining more importance for the next generation systems.
    WiMAX: OFDMA
    LTE: OFDMA (downlink), IFDMA (uplink)
    The other important advantage of the above is that they require less complexity for equalization at the receiver. This is an added advantage especially in the MIMO environments since the spatial multiplexing transmission of MIMO systems inherently requires high complexity equalization at the receiver.
    In addition to improvements in these multiplexing systems, improved modulation techniques are being used. Whereas earlier standards largely used PSK, more efficient systems such as 64QAM are being proposed for use with the LTE
    Access Scheme
  • 30. Orthogonal frequency-division multiplexing
    FDM in which sub-channels overlap without interfering
    OFDM
    Single Carrier Transmission
    (WCDMA etc)
    5 MHz
    Subcarriers
    Orthogonal Frequency
    Division Multiplexing
    e.g. 5 MHz
  • 31. Adaptable to severe channel conditions without complex equalization.
    Robust against narrow-band co-channel interference.
    Robust against intersymbol interference (ISI) and fading caused by multipath propagation.
    High spectral efficiency.
    Efficient implementation using FFT
    Low sensitivity to time synchronization errors.
    Facilitates Single Frequency Networks (SFNs), i.e. transmitter macrodiversity.
    OFDM Advantages
  • 32. TDMA/FDMA operation = OFDMA
    Frequency sub-channels are composed of multiple, non-adjacent carriers
    OFDMA: Combining TDMA and FDMA
  • 33. Multipath – The Challenge
  • 34. OFDM modulates in parallel multiple narrow band sub-carriers
    Multipath duration becomes short relative to symbol duration
    Pilot and guard sub-carriers are also inserted
    Multipath – The Solution
  • 35. The sub-carriers are converted by IFFT to a time domain signal
    A guard interval (cyclic prefix) is added to collect multipath
    A long guard interval (GI) reduces efficiency but enhances multipath handling capability
    Multipath – The Solution
  • 36. Narrowband Interference Rejection
    Easy to Avoid/Reject Narrowband Dominant Interference .
    Less Interfered Part of the Carrier Can Still Be Used .
    Interference Rejection/Avoidance
  • 37. Using shaping on the signal peaks
    Limiting the PAPR to a constant value by vector reduction
    PAPR Reduction
  • 38. Rectangular Spectrum Shape (Brick Wall)
    Small Frequency Guard band
    Spectrum Properties
  • 39. Spectrum Properties
  • 40. In OFDM, channel impairment are solved in the same way Group Delays are solved, by Channel estimation
    Group Delay
  • 41. Phase Noise Effects
    Phase Noise Effect on S.C
    Phase Noise Effect on OFDM
  • 42. Duplexing
    FDD
    duplex
    separation
    t
    f
    TDD
    guard period
    t
    f
  • 43. FDD (Frequency Division Duplexing) uses one frequency for the downlink, and a second frequency for the uplink.
    TDD (Time Division Duplexing) uses the same frequency for the downlink and the uplink.
    In both configuration the access method is OFDMA/TDMA .
    Duplexing (cont’d)
  • 44. Spatial Multiplexing
  • 45. Multiple antenna technologies are emerging to achieve high rate, high reliability, and long range communications.
    Spatial multiplexing gained importance for its bandwidth conservation and power efficiency. It involves deploying multiple antennas at the transmitter and at the receiver. Independent streams can then be transmitted simultaneously from all the antennas. This increases the data rate into multiple folds with the number equal to minimum of the number of transmit and receive antennas. This is called MIMO (as a branch of intelligent antenna).
    Spatial Multiplexing
  • 46. MIMO System
    Tx
    Rx
    y=Hx+n
  • 47. MIMI Schemes
  • 48. MIMO Techniques Comparison
  • 49. MIMO Capabilities
  • 50. Adaptive MIMO
  • 51. Space Time Coding
    A space–time code (STC) is a method employed to improve the reliability of data transmission in wireless communication systems using multiple transmit antennas. STCs rely on transmitting multiple, redundant copies of a data stream to the receiver in the hope that at least some of them may survive the physical path between transmission and reception in a good enough state to allow reliable decoding.
  • 52. Space Time Coding
    IFFT
    Filter
    DAC
    RF
    Tx Diversity Encoder
    IFFT Input Packing
    Subcarrier Modulation
    IFFT
    Filter
    DAC
    RF
    Diversity Combiner
    Sub channel Demod
    Decoder
    RF
    ADC
    Filter
    FFT
  • 53. Schedules & Candidates
  • 54. ITU 4G Schedule
  • 55.
  • 56.
  • 57. LTE & WiMAX II Terminologies
  • 58. Context-AwareMobile Applications
  • 59. Location (micro)
    Geo location
    Available network
    User activity
    Features on device
    Speed & direction
    Favourite places
    Battery power
    QoC
  • 60. User-Context
    User:
    Admin
    Service
    Networks
    Personalised
    Services
  • 64. User layer
    (anywhere, anytime)
    Personal
    Service
    Platform
    User experience management
    Service
    Discovery
    Service
    Composition
    Pervasiveness
    Context Management
    Conventional
    Service
    Platform
    e-Services
    2G
    3G
    LTE
    WiMAX
    Network access
  • 65. Thank You
  • 66. Kuncoro Wastuwibowo