Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

1 tmo18023 umts overview

2,051 views

Published on

Published in: Technology, Business
  • Be the first to comment

1 tmo18023 umts overview

  1. 1. Advanced Wireless Networks UMTS Overview 9300 W-CDMA UA06 UMTS Overview TMO18023 Edition 1
  2. 2. 1 From 2G to 3G 1.1 2G Limitations / 3G Requirements
  3. 3. 1.1 2G Limitations / 3G Requirements 1.1.1 What Are the 2G Limitations? 2G limitations C U SOON SMS => Lack of compatibility <ul><ul><li>Rate 9.6kbps </li></ul></ul>Waste of radio resource (before GPRS) Not adapted for new services such as video streaming Large number of 2G systems
  4. 4. 1.1 2G Limitations / 3G Requirements 1.1.2 What Are the 3G Requirements? 3G requirements <ul><li>Worldwide roaming </li></ul><ul><li>Single system for the following environments: </li></ul><ul><ul><li>cellular </li></ul></ul><ul><ul><li>satellite </li></ul></ul><ul><ul><li>office </li></ul></ul><ul><ul><li>residential </li></ul></ul><ul><ul><li>High speed: </li></ul></ul><ul><ul><li>144-384kbps: full coverage and mobility </li></ul></ul><ul><ul><li>2Mbps: Limited coverage and mobility </li></ul></ul>Better spectrum efficiency Flexibility to introduce new services
  5. 5. 1 From 2G to 3G 1.2 2G-to-3G Evolution
  6. 6. 1.2 2G-to-3G Evolution 1.2.1 Evolution of the Radio Access Network 2G RAN <ul><li>BSS GSM </li></ul><ul><li>Up to 160kbps </li></ul><ul><li>Internet services </li></ul>R’97/98/99 (GSM) <ul><li>BSS EDGE </li></ul><ul><li>Up to 384kbps </li></ul><ul><li>Internet services </li></ul>R’99 (GSM) Radio technique FDMA + TDMA E-GPRS GPRS 3G RAN <ul><li>GERAN EDGE </li></ul><ul><li>Up to 384kbps </li></ul><ul><li>Multimedia </li></ul><ul><li>VoIP </li></ul>R5 (3GPP) EDGE CDMA <ul><li>UTRAN UMTS </li></ul><ul><li>Up to 384kbps </li></ul><ul><li>Multimedia </li></ul><ul><li>AMR voice </li></ul>R99’/R3/R4 (3GPP) UMTS <ul><li>UTRAN 3G/HSDPA </li></ul><ul><li>Up to 10Mbps DL </li></ul><ul><li>Multimedia </li></ul><ul><li>AMR voice then VoIP </li></ul>HSDPA R5 (3GPP) R6 (3GPP) <ul><li>UTRAN 3G/HSUPA </li></ul><ul><li>Typical: 2 Mbps UL </li></ul><ul><li>Multimedia </li></ul><ul><li>VoIP </li></ul>HSUPA
  7. 7. 1.2 2G-to-3G Evolution 1.2.2 General Packet Radio Service (GPRS) BSS with PCU (GSM + GPRS) VMSC/VLR CS GMSC BSS POTS PS SGSN GPRS backbone i GGSN IP network HLR
  8. 8. 1.2 2G-to-3G Evolution 1.2.3 Enhanced Data Rates for GSM Evolution (EDGE) New radio modulation 2 generations GERAN 3G Insertion in UMTS solutions Up to 384kbps E-GPRS 2.5G Evolution of GSM radio part
  9. 9. 1.2 2G-to-3G Evolution 1.2.4 GSM EDGE Radio Access Network (GERAN) BSC GSM GSM EDGE GSM EDGE GSM EDGE BSC Iu Iu UMTS core network (All IP)
  10. 10. 1 From 2G to 3G 1.3 IMT-2000
  11. 11. 1.3 IMT-2000 1.3.1 3G Standardization Bodies 3G.IP <ul><li>3GPP </li></ul><ul><li>Members: E TSI (Europe), T1 (USA), TTA (Korea), ARIB/TTC (Japan), CWTS (PRC) </li></ul><ul><li>Goal: Global specifications for UMTS networks </li></ul><ul><li>3GPP2 </li></ul><ul><li>Members: TIA (USA), TTA (Korea), ARIB/TTC (Japan), CWTS (PRC) </li></ul><ul><li>Goal: Global specifications for CDMA2000 networks </li></ul><ul><li>3G.IP </li></ul><ul><li>Members: AT&T Wireless (USA), BT (UK), Omnitel (Italy), etc. </li></ul><ul><li>Goal: Specifications of an all-IP core network standard </li></ul>
  12. 12. 1.3 IMT-2000 1.3.2 Radio and Core Network Subsystems 4 radio accesses 2 core networks ANSI-41 GSM MAP FDD-DS IMT-TC UMTS UMTS TDD IMT-DS FDD-MC CDMA 2000 IMT-MC EDGE TDMA IMT-SC
  13. 13. 1.3 IMT-2000 1.3.3 Subsystems Distribution UMTS Western Europe: GSM (100%) China: GSM (95%) CDMA (13%) Japan: PDC (65%) CDMA (35%) US & Canada: GSM (12%) CDMA (52%) TDMA (36%) Rest of the World: GSM (41%) CDMA (35%) TDMA (24%) CDMA 2000 CDMA 2000 CDMA 2000 CDMA 2000 EDGE EDGE EDGE EDGE EDGE EDGE UMTS UMTS UMTS UMTS UMTS UMTS 1999 Market Share: GSM 65 % CDMA 14 % TDMA 12 % PDC 9 % IMT-2000 UMTS CDMA 2000 EDGE
  14. 14. 1 From 2G to 3G 1.4 3GPP
  15. 15. 1.4 3GPP 1.4.1 Radio Access Ranges Satellite Zone 4: Global Macro-cell Zone 3: Suburban Micro-cell Zone 2: Urban Zone 1: In-Building Pico-cell UMTS/TDD or HSDPA/HSUPA UMTS/FDD EDGE MSS
  16. 16. 2 Services and Applications
  17. 17. 2 Services and Applications 2.1 User Equipment
  18. 18. 2.1 User Equipment 2.1.1 Description User Equipment (UE) Cu Mobile Equipment (ME) Hello world 1 2 3 6 9 5 8 7 4 0 * # UMTS UICC USIM 2 GSM access SIM USIM 1 UMTS Node B GSM BTS Hello world 1 2 3 6 9 5 8 7 4 0 * # GSM
  19. 19. 2.1 User Equipment 2.1.2 Some Characteristics no, A-GPS, OTDOA Location 32kbps to 2048kbps Transmission rate class 1 to 4 (GSM and/or UMTS) Supported classmarks 1 to 4 (radio transmission power) Power class 2100, 1900MHz Frequency band FDD or TDD Radio technology 768kbps 384kbps 128kbps 64kbps 32kbps Down 2048kbps 768kbps 384kbps 128kbps 64kbps 32kbps UP Transmission rate class 0.126W 0.25W 0.5W 2W 4 3 2 1 Power class Tx and Rx on GSM and UMTS Plus simultaneous transmission TYPE 4 Rx on GSM and UMTS Plus simultaneous reception TYPE 3 Automatic switch Measurements on other network TYPE 2 Manual Switch No measurement on other network TYPE 1 Supported classmark
  20. 20. 2.1 User Equipment 2.1.3 How to Access Services? <ul><li>Strong consumer expectation for mobile multimedia </li></ul><ul><li>Excellent tool for vertical market applications </li></ul><ul><li>Operator / Manufacturer Flagship product (NTT DoCoMo) </li></ul>distributed integrated Probably 2 in 1
  21. 21. 2 Services and Applications 2.2 Types of Services
  22. 22. 2.2 Types of Services 2.2.1 Applications Always-on applications User Equipment = always-on device User Equipment = information device User Equipment = store Media applications Purchasing: Merchant M-Commerce applications Infotainment: Service Provider Communicating: Users/Machines Hello world 1 2 3 6 9 5 8 7 4 0 * #
  23. 23. 2.2 Types of Services 2.2.2 QoS Classes <ul><li>AMR speech service </li></ul><ul><li>Video telephony (IETF multimedia architecture): </li></ul><ul><ul><li>CS: H.324 </li></ul></ul><ul><ul><li>PS: H.323 </li></ul></ul><ul><li>E-mail delivery </li></ul><ul><li>SMS </li></ul><ul><li>Etc. </li></ul><ul><li>Location-based services </li></ul><ul><li>Computer games </li></ul>streaming interactive background conversational Traffic Class Data integrity sensitive - + Delay sensitive - + Video on demand      
  24. 24. 3 UMTS Architecture
  25. 25. Objectives <ul><li>Objectives: </li></ul><ul><li>To be able to describe the functional architecture of the UMTS network. </li></ul><ul><li>Content: </li></ul><ul><li>3.1 UTRAN </li></ul><ul><li>3.2 Core Network </li></ul><ul><li>3.3 Protocols on Iu </li></ul>
  26. 26. 3 UMTS Architecture 3.1 UTRAN
  27. 27. 3.1 UTRAN 3.1.1 The UTRAN in the UMTS Architecture UMTS PLMN Iu PSTN IP network UTRAN Core network UE Hello world 1 2 3 6 9 5 8 7 4 0 * # Uu
  28. 28. 3.1 UTRAN 3.1.2 Functions UTRAN functions Radio resource management and control Mobility procedures Transfer of data, ciphering / deciphering Broadcast / Multicast Overall system access control
  29. 29. 3.1 UTRAN 3.1.3 Architecture Serving Core network RNS RNS Node B 1 Iu Iu Iub Iub Iub Node B 2 Node B 3 Uu UE Hello world 1 2 3 6 9 5 8 7 4 0 * # Iur RNC 1 RNC 2
  30. 30. 3 UMTS Architecture 3.2 Core Network
  31. 31. 3.2 Core Network 3.2.1 Functions Core Network functions Management of user location information Control of network features and services Communication with RANs and other CNs Transfer mechanisms (switching and transmission) for signaling and user data
  32. 32. 3.2 Core Network 3.2.2 3GPP R'99/R3 Architecture CS domain PSTN PS domain IP network UTRAN Iu-CS Iu-PS Gn Gi D Gc C Gr MAP ISUP SS7 network GTP IP network GGSN SGSN Gs HLR MSC/VLR GMSC
  33. 33. 3.2 Core Network 3.2.3 3GPP R4 Architecture BICC PS domain Iu-PS IP network SGSN GGSN UTRAN HLR Iu-CS PSTN MSC/VLR MSC/VLR User data Signaling MSC server & VLR CS-MGW GMSC server CS-MGW IP, ATM BSS Edge A, Gb,
  34. 34. 3.2 Core Network 3.2.4 3GPP R5 Architecture Iu-CS CS-domain IMS PS domain Iu-PS IP network PSTN UTRAN BSS Edge BSS Edge GERAN HSS
  35. 35. 3.2 Core Network 3.2.5 3GPP R5 Architecture: IMS IMS PS domain Iu PS SGSN GGSN UTRAN GERAN IP network Other PLMN PSTN HSS MGCF IM-MGW SIP CSCF BGCF
  36. 36. 4 UMTS Basic Principles
  37. 37. Objectives <ul><li>Objectives: </li></ul><ul><li>To be able to describe the UMTS and CDMA basic principles. </li></ul><ul><li>Content: </li></ul><ul><li>4.1 CDMA Principles </li></ul><ul><li>4.2 Radio Resources: Frequency, Time, Power/Code </li></ul><ul><li>4.3 Radio Resource Management </li></ul>
  38. 38. 4 UMTS Basic Principles 4.1 CDMA Principles
  39. 39. 4.1 CDMA Principles 4.1.1 Multiple Access Technique FDMA TDMA CDMA User1 User2 User3 User1 User2 User3 User1 User2 User3 Time Frequency Power Time Frequency Power Time Frequency Power / Code
  40. 40. 4.1 CDMA Principles 4.1.2 CDMA Characteristics <ul><li>The entire bandwidth is used by each user at the same time: </li></ul><ul><li>Intra-cell interference. </li></ul><ul><li>User orthogonality is achieved by codes. </li></ul><ul><li>1 frequency on all the cells, so the entire bandwidth is used in each cell: </li></ul><ul><li>Inter-cell interference. </li></ul><ul><li>Cell orthogonality is achieved by codes. </li></ul>
  41. 41. 4.1 CDMA Principles 4.1.3 CDMA Modes FDD mode Code and frequency orthogonality Downlink Uplink f1 f2 5-MHz channel 5-MHz channel TDD mode Code and time orthogonality Uplink & Downlink 15 TSs . . . . . . Hello world 1 2 3 6 9 5 8 7 4 0 * # Hello world 1 2 3 6 9 5 8 7 4 0 * # Hello world 1 2 3 6 9 5 8 7 4 0 * # Hello world 1 2 3 6 9 5 8 7 4 0 * #
  42. 42. 4.1 CDMA Principles 4.1.4 CDMA Frequency Range FDD mode Wide CDMA paired bands (2 x 60MHz) TDD mode TD/CDMA (Time Division) unpaired bands (35MHz) 1900 1980 2010 2025 1920 TDD TDD FDD UL FDD DL MSS UL MSS DL 2170 2200 2110
  43. 43. 4.1 CDMA Principles 4.1.5 UMTS 900/850MHz <ul><li>Site count reduction </li></ul><ul><li>Better in-building penetration gain </li></ul><ul><li>GSM site reuse </li></ul>More coverage Better indoor penetration <ul><li>Our R&D Driver of UMTS 900Hz Specifications at 3GPP </li></ul><ul><li>UMTS/HSDPA + 900/850MHz = Winning Combination </li></ul>
  44. 44. 4.1 CDMA Principles 4.1.6 HSDPA: What For? <ul><li>HSDPA Standardized by 3GPP R5 </li></ul><ul><li>HSDPA is designed to: </li></ul><ul><li>Increase the Downlink data throughput over the air interface (theoretical peak user bit rate = 14.4Mbps). </li></ul><ul><li>Provide instantaneous high data rates in the PS domain (e.g., Internet browsing, video on demand). </li></ul><ul><li>HSDPA could be deployed in both FDD and TDD modes. </li></ul>DL UL
  45. 45. 4.1 CDMA Principles 4.1.7 HSDPA: Better Use of Resources HSDPA 3G with a High Speed DL Shared Channel Classical 3G with Dedicated Channel A shared channel is much more efficient than a dedicated channel to carry bursty packet traffic .
  46. 46. 4.1 CDMA Principles 4.1.8 HSUPA: What For? <ul><li>HSUPA Standardized by 3GPP R6 </li></ul><ul><li>HSUPA standardized by 3GPP R6 is designed to increase the Uplink data throughput over the air interface (theoretical peak user bit rate = 5.7Mbps). </li></ul>3GPP Release 6 Throughput & Capacity HSUPA Uplink Dedicated Channels High Throughputs R99 = 384 kbps UL Cat. 5 UE: 2 Mbps UL Cat. 6 UE: 5.7 Mbps UL
  47. 47. 4 UMTS Basic Principles 4.2 Radio Resources: Frequency, Time, Power/Code
  48. 48. 4.2 Radio Resources: Frequency, Time, Power/Code 4.2.1 Definition SAME E-TACTIC Channelization Code Scrambling Code S: Signal level N: Noise level f Power N 0 Spread Signal S’ S chip 0 1 0011 0010 Channelization code example: Spreading factor = 4 UE1 0 1 1011 1010 UE2 1 Spreading - CATS EAT MICE n Chips n Chips 2 Scrambling S T A C - E E A T M I C f Power S bit N 0 SIR S
  49. 49. 4.2 Radio Resources: Frequency, Time, Power/Code 4.2.2 Multiple Access A B Noise! Channelization Bit chips scrambling Mixed chips modulation UE1 UE2 Node B
  50. 50. 4.2 Radio Resources: Frequency, Time, Power/Code 4.2.3 FDD and TDD Modes Characteristics Up to 2Mbps Up to 2Mbps Bearer capability Convolutional, Turbo Convolutional, Turbo Channel coding scheme 16 to 1 (UL and DL) <ul><li>DL: 512 to 4 </li></ul><ul><li>UL: 256 to 4 </li></ul>Spreading factor Multi-slot, multi-code Variable spreading factor, multi-code Multi-rate/variable-rate scheme Synchronization needed Not Needed Inter-BS synchronization 15 15 Slots per frame 10ms 10ms Frame length 3.84Mcps 3.84Mcps Chip rate Nominal 5MHz Nominal 5MHz Bandwidth <ul><li>UL:1900-1920MHz </li></ul><ul><li>DL: optional 2010-2025MHz </li></ul><ul><li>UL: 1920-1980MHz </li></ul><ul><li>DL: 2110-2170MHz </li></ul>Frequency bands Time division Frequency division Duplex scheme TDMA with CDMA in time slots Direct-Sequence CDMA Multiple access scheme TDD FDD
  51. 51. 4 UMTS Basic Principles 4.3 Radio Resource Management
  52. 52. 4.3 Radio Resource Management 4.3.1 Soft Handover (1/2) Core network Iu Iu Iub Iub RNC1 RNC2 Node B2 Node B3 drift serving Iur
  53. 53. 4.3 Radio Resource Management 4.3.2 Soft Handover (2/2) Core network Iub Iub Iu Iub Iur Iu Iub Node B1 Node B2 Node B3 Node B4 RNC1 RNC2 1 2 3 4 S D 5 D S 6 S
  54. 54. 4.3 Radio Resource Management 4.3.3 Power Control (1/2) <ul><li>Power Control Issue </li></ul><ul><li>Near-far effect in uplink </li></ul><ul><li>Minimize the interference level </li></ul>Node B Hello world 1 2 3 6 9 5 8 7 4 0 * #
  55. 55. 4.3 Radio Resource Management 4.3.4 Power Control (2/2) SIR > SIR target ? Open loop Closed loop Outer loop Inner lo op Tx power estimation SIR target adjustment Node B Node B SIR > SIR target ? TPC command RNC SIR target Hello world 1 2 3 6 9 5 8 7 4 0 * #
  56. 56. 4.3 Radio Resource Management 4.3.5 Radio Resources <ul><li>Concentric Coverage : The coverage is determined by the uplink interference level. </li></ul><ul><li>Soft capacity : The capacity is determined by the downlink interference level and the code orthogonality. </li></ul><ul><li>Load of the cell : trade-off capacity/coverage ( breathing cells). </li></ul>
  57. 57. End of Module UMTS Overv iew
  58. 58. QuizMaker
  59. 59. Appendix
  60. 60. Standards: Series 21 to 23 <ul><ul><li>21-Series: Requirements Specifications </li></ul></ul><ul><ul><li>These specifications are often transient and contain requirements leading to other specifications. They may become obsolete when technical solutions have been fully specified. They could then, e.g., be replaced by reports describing the performance of the system. They could be deleted without replacement or be kept for historical reasons but turned into background material. When found necessary and appropriate, the transient or permanent nature of a requirement specification may be expressed in its scope. </li></ul></ul><ul><ul><li>2 2-Series: Service Aspects </li></ul></ul><ul><ul><li>Specifications in this series specify services, service features, building blocks or platforms for services (a service feature or service building block may provide certain generic functionality for the composition of a service, including the control by the user; a platform may comprise a single or more network elements, e.g. UIM, mobile terminal, auxiliary system to the core network etc.). Stage-1 aspecs that are felt appropriate belong to this series. Reports defining services which can be realized by generic building blocks etc. also belong to this series. </li></ul></ul><ul><ul><li>2 3-Series: Technical Realization </li></ul></ul><ul><ul><li>This series mainly contains stage-2 specifications (or specifications of a similar nature describing interworking over several interfaces, the behavior in unexceptional cases, etc.). </li></ul></ul>
  61. 61. Standards: Series 24 to 26 <ul><ul><li>24-Series: Signaling Protocols (UE - CN Network) </li></ul></ul><ul><ul><li>This series contains the detailed and bit-exact stage-3 specifications of protocols between Mobile Station/User Equipment and the Core Network. </li></ul></ul><ul><ul><li>2 5-Series: UTRA Aspect </li></ul></ul><ul><ul><li>25.100-series: UTRA radio performance aspects (radio performance of UTRAN). </li></ul></ul><ul><ul><li>25.200-series: UTRA radio aspects ((physical) layer 1 of UTRA). </li></ul></ul><ul><ul><li>25.300-series: UTRA radio interface architecture, layer 2 and layer 3 aspects (layer 2/3 of the UMTS radio). </li></ul></ul><ul><ul><li>25.400-series: UTRA network aspects (Iub, Iur and Iu interfaces within UTRAN). </li></ul></ul><ul><ul><li>2 6-Series </li></ul></ul><ul><ul><li>Speech codecs and other codecs (video, etc.). </li></ul></ul>
  62. 62. Standards: Series 27 to 31 <ul><li>27-Series: Data </li></ul><ul><li>Functions needed to support data applications. </li></ul><ul><li>29-Series: Signaling Protocols (NSS) </li></ul><ul><li>This series contains the detailed and bit-exact stage-3 specifications of protocols within the Core Network. </li></ul><ul><li>30-Series: Program Management </li></ul><ul><li>This series contains the 3GPP 3rd Generation Mobile System, project plans / project work program and standalone documents for major work items. </li></ul><ul><li>31-Series: UIM </li></ul><ul><li>This series specifies the User Identity Module (UIM) and the interfaces between UIM and other entities. </li></ul>
  63. 63. Standards: Series 32 to 35 <ul><li>32-Series: Operation and Maintenance </li></ul><ul><li>This series defines the application of TMN for the 3GPP 3rd Generation Mobile System and other functions for operation, administration and maintenance of a 3rd Generation Mobile System network. </li></ul><ul><li>33-Series: Security Aspects </li></ul><ul><li>This series contains specifications of security functions. </li></ul><ul><li>34-Series: Test </li></ul><ul><li>This series contains test specifications. </li></ul><ul><li>35-Series: Algorithms </li></ul><ul><li>This series contains the specifications of encryption algorithms for confidentiality and authentication, etc. </li></ul>
  64. 64. Answer the Questions
  65. 65. Module Summary
  66. 66. Discussion or Question
  67. 67. Self-assessment on the Objectives <ul><li>Please be reminded to fill in the form Self-Assessment on the Objectives for this module </li></ul><ul><li>The form can be found in the first part of this course documentation </li></ul>
  68. 68. References

×