3
3G Standard organizations
http:// www.ccsa.org.cn http:// www.3gpp.orgGeneral Assembly
Council
Network and Switching Technical Committee (TC3)
Transport and Access NetworkTechnical Committee (TC6)
IP and Multimedia Technical Committee (TC1)
Network ManagementTechnical Committee (TC7)
Communication Power SupplyTechnical Committee (TC4)
Network and Information SecurityTechnical Committee (TC8)
Sub Committee
Secretariat
General Office
Technology Department
Planning and Development Department
Standardization-Promoting Department
External Committee Department
Advisory Committee
Wireless CommunicationTechnical Committee (TC5)
Mobile Internet Protocol Special Group (TC2)
5
TD-SCDMA Evolution Path 3GPP
LCR TDD( R4)
LCR TDD( R5)
LCR TDD(R6)
CCSA
Multi-carrier
TD-SCDMA Stage I
( R4 2003/03)
N Frequency Bands Cell
TD-SCDMAStage II( R5) TD-SOFDMA
MC-CDMA TDD
TD-SCDMAStage III
( R6/R7)
Current status Short Term Evolution Long Term Evolution
OFDMA TDD
SC-FDMA /OFDMA TDD
LTE TDD
LCR TDD(R7)
2005 2007
6
Industry Standards issued by CCSA
一、《 2GHz TD-SCDMA 数字蜂窝移动通信网 无线接入网络设备技术要求 》 YD/T 1365-2006 二、《 2GHz TD-SCDMA 数字蜂窝移动通信网 无线接入网络设备测试方法 》 YD/T 1366-2006 三、《 2GHz TD-SCDMA 数字蜂窝移动通信网 终端设备技术要求 》 YD/T 1367-2006 四、《 2GHz TD-SCDMA 数字蜂窝移动通信网 终端设备测试方法 第一部分:基本功能、业务和性能测试》 YD/T 1368.1-2006 五、《 2GHz TD-SCDMA 数字蜂窝移动通信网 终端设备测试方法 第二部分:网络兼容性测试》 YD/T 1368.2-2006 六、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第一部分:总则 》 YD/T 1369.1-2006 七、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第二部分:层一 》 YD/T 1369.2-2006 八、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第三部分:信令传输 》 YD/T 1369.3-2006 九、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第四部分: NBAP 信令 》 YD/T 1369.4-2006 十、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第五部分:公共传输信道数据流的数据传输和传输信令》 YD/T 1369.5-2006 十一、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第六部分:公共传输信道数据流的用户平面协议 》 YD/T 1369.6-2006 十二、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第七部分:专用传输信道数据流的数据传输和传输信令》 YD/T 1369.7-2006
十三、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口技术要求 第八部分:专用传输信道数据流的用户平面协议 》 YD/T 1369.8-2006 十四、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Iub 接口测试方法 》 YD/T 1370-2006 十五、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口物理层技术要求 第一部分:总则 》 YD/T 1371.1-2006 十六、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口物理层技术要求 第二部分:物理信道和传输信道到物理信道的映射》 YD/T 1371.2-2006
十七、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口物理层技术要求 第三部分:复用和信道编码 》 YD/T 1371.3-2006 十八、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口物理层技术要求 第四部分:扩频和调制 》 YD/T 1371.4-2006 十九、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口物理层技术要求 第五部分:物理层过程 》 YD/T 1371.5-2006 二十、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口物理层技术要求 第六部分:物理层测量 》 YD/T 1371.6-2006 二十一、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口层 2 技术要求 第一部分: MAC 协议 》 YD/T 1372.1-2006 二十二、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口层 2 技术要求 第二部分: RLC 协议 》 YD/T 1372.2-2006 二十三、《 2GHz TD-SCDMA 数字蜂窝移动通信网 Uu 接口 RRC 层技术要求 》 YD/T 1373-2006
CCSA TD-SCDMA Standard’s present status
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TD-SCDMA Short-term Evolution —— N-Frequency Cell Solution
Overcome the following problems in multiple-cell solution for improving capacity in TD-SCDMA: – The difficulties in cell search
– The complexity in UE measurements
– The problem in handover
– System inefficiency
Implementation of N-frequency cell– Multiple frequency bands are configured in one cell
– A master frequency band is configured
– DwPTS and P-CCPCH are only configured for master band
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N-frequency cell + HSDPA Multi-carrier HSDPA
HSDPA
N-frequency cell– Multiple frequency bands are configured for one logical cell
– Facilitate to multiple frequency bands combining for HSDPA
Multi-carrier HSDPA is a combination of N-frequency cell and HSDPA– Higher peak data rate ( N*2.8Mb/s )– More suitable for packet services
TD-SCDMA Short Term Evolution —— MC-HSDPA
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HARQ Process(1~8)
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Carrier #1 Physical
Layer
HARQ Process(1~8)
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HARQ Process(1~8)
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Carrier #2 Physical
Layer
Carrier #3 Physical
Layer
Channel Coding Channel Coding Channel Coding
3GPP HSDPA channel coding
3GPP HSDPA channel coding
3GPP HSDPA channel coding
Carrier #1 Carrier #2 Carrier #3
HS-DSCHHS-SCCH HS-SICH
Priority Queue Distribution Priority Queue Distribution
Priority Queue
Priority Queue
Priority Queue
Priority Queue
Scheduling/Priority Handling
MAC-hs
HARQ Entity
MAC-d flows
HS-DSCHHS-SCCH HS-SICH HS-DSCHHS-SCCH HS-SICH
Multi-Carrier HSDPA Architecture
TD-SCDMA Short Term Evolution —— MC-HSDPA
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Principles on multi-carrier HSDPA Standardization
Air interface shall keep compatible with N-frequency cell solution in CCSA TD-SCDMA stage I;
– Physical layer: channel structure of HS-SCCH and HS-SICH is same to that for single-carrier HSDPA system ;
– MAC layer: segmentation/combining.
– UE Capability: adding UE multi-carrier HSDPA capability indicator in corresponding field.
The multi-carrier HSDPA is based on 3GPP R5 HSDPA, but the changes are limited to the minimum.
TD-SCDMA Short Term Evolution —— MC-HSDPA
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TD-SCDMA Short Term Evolution —— MBMS
TDD MBMS Technology
MBMS( Multimedia Broadcast and Multicast Services) is an unidirectional point to multipoint bearer service in which data is transmitted from a single source entity to multiple recipients.
MBMS is basically a new broadcast and multicast radio bearer technology; it can provide high speed downlink, non-voice services for multiple users simultaneously and regardless of user location and radio conditions in full area coverage.
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Traditional non–MBMS results in radio resource bottlenecks by point-to-point transmission method
MBMS removes radio resource bottlenecks by point-to-multipoint transmission method
MBMS can efficiently utilize radio resource at air interface
MBMS can perform lower prices due to the saving in network resources
TD-SCDMA Short Term Evolution —— MBMS
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TDD MBMS architecture
MBMS architecture comprises four blocks: User Equipment (UE), UTRAN (UMTS Terrestrial Radio Access Network, Core Network (including GGSN and SGSN) and new blocks- Broadcast Multicast - Service Centre (BM-SC)
MBMS architecture enables the efficient usage of radio-network and core-network resources, with an emphasis on radio interface efficiency
TD-SCDMA Short Term Evolution —— MBMS
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TDD MBMS channels
– MICH (MBMS notification Indicator Channel)– MCCH (MBMS point-to-multipoint Control Channel– MTCH (MBMS point-to-multipoint Traffic Channel)– MSCH (MBMS point-to-multipoint Scheduling Channel)
TD-SCDMA Short Term Evolution —— MBMS
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MBMS Feature over TDD Technology
-Simulcast Combining with timeslot reused
TD-SCDMA can use selective combing and soft coming, and it can also use simulcast combining through timeslot reused technology on its special frame structure
The complexity of UE will be increased due to combining of multiple radio links simultaneously in UE. But, in TD-SCDMA, it can be avoided by combining macro-diversity with timeslot reused
Timeslot reused can increase further throughput gains on the basis of selective combining and soft combining
TD-SCDMA Short Term Evolution —— MBMS
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Service requirement
HSUPA TDDFaster
retransmission
Efficient scheduling
Higher Modulation
Higher Date rate in uplink Higher network efficiency Higher spectra efficiencyLower latency
FTP upload,Multimedia, Video- clips,email, telematicsGaming,video streaming
TD-SCDMA Short-term Evolution —— HSUPA
System requirement
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TD-SCDMA HSUPA key technology - Efficient Scheduling
With Node B-based Packet Scheduling, two main improves:– Cell throughput is increased by means of faster adaption to
interference variation and finer control of the total received uplink power.
– User performance is improved by means of more frequently reallocation of radio resource to NRT users
TD-SCDMA Short-term Evolution —— HSUPA
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TD-SCDMA HSUPA key technology - Faster retransmission
80ms
TD-SCDMA Short-term Evolution —— HSUPA
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TD-SCDMA HSUPA key technology - Faster retransmission
Faster retransmission– Reaches maximum achievable cell throughput by means of
faster retransmission of erroneously received data frame to reduce the number of RLC retransmission, since physical channel can be operated with higher BLER for same overall performance under this condition, which results to an increase in spectra efficiency.
TD-SCDMA Short-term Evolution —— HSUPA
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TD-SCDMA HSUPA key technology - Higher order modulation
• Higher order modulation improve spectrum efficiency in good propagation condition.
Qk
Ik
Qk
Ik
QPSK
8PSK
16QAM
TD-SCDMA Short-term Evolution —— HSUPA
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TD-SCDMA HSUPA’s latest progress In March, 2006, at the TSG RAN meeting #31, a new work item proposal (“Proposed Work Item on 1.28 Mcps TDD Enhanced Uplink “) was approved. ZTE takes part in this WI with other companies.
The WI includes the following sub WIs: 1.28 Mcps TDD Enhanced Uplink: Physical Layer 1.28 Mcps TDD Enhanced Uplink: Layer 2 and 3 Protocol Aspects 1.28 Mcps TDD Enhanced Uplink: UTRAN Iub/Iur Protocol Aspects 1.28 Mcps TDD Enhanced Uplink: RF Radio Transmission/ Reception, System Performance Requirements and Conformance Testing
TD-SCDMA Short-term Evolution —— HSUPA
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3GPP Long-term Evolution —— Target
Significantly increased peak data rate e.g. 100 Mbps (downlink) and 50 Mbps (uplink)
Increase “cell edge bitrate” whilst maintaining same site locations as deployed today
Significantly improved spectrum efficiency ( e.g. 2-4 x Rel6) Possibility for a Radio-access network latency (user-plane UE – RNC (or
corresponding node above Node B) - UE) below 10 ms Significantly reduced C-plane latency (e.g. including the possibility to
exchange user-plane data starting from camped-state with a transition time of less than 100 ms (excluding downlink paging delay))
Scaleable bandwidth 5, 10, 20 and possibly 15 MHz [1.25,] 2.5 MHz: to allow flexibility in narrow spectral allocations where
the system may be deployed Support for inter-working with existing 3G systems and non-3GPP specified
systems
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3GPP Long-term Evolution —— Target
Further enhanced MBMS Reduced CAPEX and OPEX including backhaul Cost effective migration from Rel-6 UTRA radio interface and
architecture Reasonable system and terminal complexity, cost, and power
consumption. Support of further enhanced IMS and core network Backwards compatibility is highly desirable, but the trade off versus
performance and/or capability enhancements should be carefully considered.
Efficient support of the various types of services, especially from the PS domain (e.g. Voice over IP, Presence)
System should be optimized for low mobile speed but also support high mobile speed
Operation in paired and unpaired spectrum should not be precluded Possibility for simplified co-existence between operators in adjacent
bands as well as cross-border co-existence
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Circuit
Circuit
Pa
cket
Pa
cket
Wirele
ss Access
Wirele
ss Access
Mo
bile
Netw
ork
Mo
bile
Netw
ork
Services Network
Transport, Switch and Access
SCPService management layer
App Server
Control layer
Switch layer
Access layer
Softswitch Softswitch
GERANGERANUMTSUMTS WLANWLAN
LTE
IP
EnterpriseASP
Horizontal Network
3GPP Long-term Evolution —— Network Architecture
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3GPP Long-term Evolution —— Fundamental technology
OFDM ( Orthogonal Frequency Division Multiplexing ) 信道分成若干正交子信道,高速数据信号转换成并行的低速子数据流,调制到每个子信道上进行传输,从而降低符号间干扰。
MIMO ( Multiple Input Multiple Output ) 利用多天线来抑制信道衰落,在不增加带宽和天线发送功率的情况下,提高信道容量及频谱利用率。
MC ( Multi-Carrier ) 通过多载波的捆绑,来提高信道的传输速率。
TS2
TS0
TS0
TS0
TS1
TS4
TS4
TS4
TS5
TS5
TS5
TS6
TS6
TS6
Carri er 1
Carri er 2
Carri er 3
Group 1
Carri er 10
Carri er 11
Carri er 12
Group 4
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DwPTS GP UpPTS UpLi nkSl ot
DownLi nkSl ot
TS3
TS3
TS3
TS2
TS0
TS0
TS0
TS1
TS4
TS4
TS4
TS5
TS5
TS5
TS6
TS6
TS6
TS3
TS3
TS3
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3GPP Long-term Evolution —— Development Status
The requirement of LTE (TR25.913) is approved at 3GPP TSG RAN #28 meeting in 2005.6
Now 3GPP TSG RAN is working on the TR25.912 (Feasibility Study for EUTRA and EUTRAN)
– WG1 : Physical layer aspects (TR25.814)
– WG2 : Radio interface protocol aspects (TR25.813)
– WG3 : Radio access architecture and interfaces (TR R3.018)
– WG4 : Radio performance and protocol aspects
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3GPP Long-term Evolution —— Development Status
TR25.913 V7.2.0Requirements for EUTRA and UTRAN
TR25.912 V0.0.4 [RP-060168]Feasibility Study for EUTRA and EUTRAN
WG1 WG2
TR25.814 V1.2.0Physical layer aspects for EUTRA(RP-060201)Editor: NTT DoCoMo
TR25.813 V0.5.1EUTRA and EUTRAN Radio interface protocol aspects(RP-060176)Editor: Nokia, LG, NEC, Motorola, Samsung
WG3
TR R3.018 V0.2.0EUTRA and EUTRAN Radio Access Architecture and InterfacesEditor: Vodafone, Ericsson
WG4
SI TR: NTT DoCoMoBase Station: EricssonTerminal: MotorolaRRM: NokiaRF System Scenarios:
Siemens
WG specific TRs
Outcome
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3GPP Long-term Evolution —— ZTE’s participation
ZTE begins to attend 3GPP LTE standard work from 2005.5
ZTE is covering WG1/WG2/WG3 now
ZTE had already submitted many contributions to 3GPP RAN WG1/WG2/WG3
ZTE is devoted to LTE key technology study
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3GPP Long-term Evolution —— ZTE’s contribution
Frame structure and parameter adjustment– The proposal of CP length (R1-051358) is adopted in TR25.814
Power de-grating– The proposal of UL PAPR reduction (R1-051008) is adopted in TR25.814
Cell search Intra-Node B Synchronization and UL timing control Pilot design Scheduling Channel Multiplexing Link adaptation Random access Channel coding MIMO Macro diversity