RAN13.0 Basic Feature Description

RAN13.0 Basic Feature Description

Issue 1.5

Date 2011-12-09

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2010. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

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The information in this document is subject to change without notice. Every effort has been made in

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Huawei Technologies Co., Ltd.

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Issue 1.5 (2010-06-10) Commercial in Confidence Page 3 of 173

Contents

1 System Improvement ............................................................................................................... 7

1.1 WRFD-000001 System Improvement for RAN5.1...................................................................................... 7



1.4 WRFD-000004 System Improvement for RAN10.0 ................................................................................... 11

1.5 WRFD-000005 System Improvement for RAN11.0 ...................................................................................13




2 Standards Compliance ........................................................................................................... 20

2.1 WRFD-010101 3GPP R9 Specifications....................................................................................................20

2.2 WRFD-010102 Operating Multi-band .......................................................................................................21

2.3 WRFD-010201 FDD Mode .......................................................................................................................22

3 RABs and Services ................................................................................................................. 24

3.1 WRFD-010510 3.4/6.8/13.6/27.2 kbit/s RRC Connection and RAB Assignment ........................................24

3.2 WRFD-010501 Conversational QoS Class ................................................................................................25

3.3 WRFD-010502 Streaming QoS Class ........................................................................................................26

3.4 WRFD-010503 Interactive QoS Class .......................................................................................................27

3.5 WRFD-010504 Background QoS Class .....................................................................................................28

3.6 WRFD-010609 Multiple RAB Introduction Package (PS RAB < 2) ...........................................................30

3.6.2 WRFD-01060901 Combination of Two CS Services (Except for Two AMR Speech Services) ...........30

3.6.3 WRFD-01060902 Combination of One CS Service and One PS Service ...........................................31

3.6.4 WRFD-01060903 Combination of Two CS Services and One PS Service (Except for Two AMR

Speech Services) ......................................................................................................................................32

3.7 WRFD-021104 Emergency Call ................................................................................................................32

4 RAN Architecture & Functions ............................................................................................ 34

4.1 MRFD-210604 2-Way Antenna Receive Diversity ....................................................................................34

4.2 WRFD-010205 Cell Digital Combination and Split ...................................................................................35

4.3 WRFD-010208 Fast Power Congestion Control (FCC) ..............................................................................36

4.4 WRFD-010211 Active TX Chain Gain Calibration ....................................................................................37

4.5 WRFD-010202 UE State in Connected Mode (CELL-DCH, CELL-PCH, URA-PCH, CELL-FACH) .........38

4.6 WRFD-010401 System Information Broadcasting .....................................................................................40



4.7 WRFD-010301 Paging UE in Idle, CELL_PCH, URA_PCH State (Type 1) ...............................................42

4.8 WRFD-010302 Paging UE in CELL_FACH, CELL_DCH State (Type 2) ..................................................43

5 Channel Resource Management........................................................................................... 44

5.1 WRFD-020900 Logical Channel Management ..........................................................................................44

5.2 WRFD-021000 Transport Channel Management .......................................................................................45

5.3 WRFD-022000 Physical Channel Management .........................................................................................47

5.4 WRFD-021101 Dynamic Channel Configuration Control (DCCC) ............................................................53

6 Network Security ................................................................................................................... 55

6.1 WRFD-011401 Integrity Protection ...........................................................................................................55

6.2 WRFD-011402 Encryption .......................................................................................................................55

7 Power Control ......................................................................................................................... 57

7.1 WRFD-020501 Open Loop Power Control ................................................................................................57

7.2 WRFD-020502 Downlink Power Balance .................................................................................................58

7.3 WRFD-020503 Outer Loop Power Control ...............................................................................................59

7.4 WRFD-020504 Inner Loop Power Control ................................................................................................60

8 Cell Management ................................................................................................................... 62

8.1 WRFD-020101 Admission Control ...........................................................................................................62

8.2 WRFD-020102 Load Measurement ...........................................................................................................64

8.3 WRFD-020106 Load Reshuffling..............................................................................................................66

8.4 WRFD-020107 Overload Control .............................................................................................................67

8.5 WRFD-020108 Code Resource Management ............................................................................................68

9 Network Sharing .................................................................................................................... 70

9.1 WRFD-021301 Shared Network Support in Connected Mode ....................................................................70

9.2 MRFD-210104 BSC/RNC Resource Sharing ............................................................................................71

10 Mobility Management ......................................................................................................... 73

10.1 WRFD-020201 Intra Node B Softer Handover ........................................................................................73

10.2 WRFD-020202 Intra RNC Soft Handover ...............................................................................................74

10.3 WRFD-020203 Inter RNC Soft Handover ...............................................................................................75

10.4 WRFD-020301 Intra Frequency Hard Handover ......................................................................................75

10.5 WRFD-010801 Intra RNC Cell Update ...................................................................................................76

10.6 WRFD-010802 Inter RNC Cell Update ...................................................................................................78

10.7 WRFD-010901 Intra RNC URA Update ..................................................................................................78

10.8 WRFD-010902 Inter RNC URA Update ..................................................................................................79

10.9 WRFD-021400 Direct Signaling Connection Re-establishment (DSCR) ..................................................80

11 NodeB Network Structure ................................................................................................... 82

11.1 MRFD-210204 Star Topology .................................................................................................................82

11.2 MRFD-210205 Chain Topology ..............................................................................................................83

11.3 MRFD-210206 Tree Topology ................................................................................................................84

12 Clock ...................................................................................................................................... 86



12.1 MRFD-210501 BTS/NodeB Clock..........................................................................................................86

12.2 MRFD-210502 BSC/RNC Clock ............................................................................................................87

13 ATM Transmission Introduction Package ........................................................................ 90

13.1 WRFD-050301 ATM Transmission Introduction Package ........................................................................90

13.1.2 WRFD-05030101 ATM over E1T1 on Iub Interface........................................................................91

13.1.3 WRFD-05030102 ATM over Channelized STM-1/OC-3 on Iub Interface ........................................92

13.1.4 WRFD-05030103 ATM over Non-channelized STM-1/OC-3c on Iub/Iu/Iur Interface .....................94

13.1.5 WRFD-05030104 Dynamic AAL2 Connections in Iub/IuCS/Iur Interface .......................................95

13.1.6 WRFD-05030105 Permanent AAL5 Connections for Control Plane Traffic .....................................96

13.1.7 WRFD-05030106 Call Admission Based on Used AAL2 Path Bandwidth .......................................97

13.1.8 WRFD-05030107 CBR, rt-VBR, nrt-VBR, UBR ATM QoS Classes ...............................................99

13.1.9 WRFD-05030110 F5 .................................................................................................................... 100

14 IMA Transmission for E1/T1 or Channelized STM-1/OC-3 on Iub Interface ............ 102

14.1 WRFD-050304 IMA Transmission for E1T1 or Channelized STM-1/OC-3 on Iub Interface ................... 102

15 UBR+ATM QoS Class........................................................................................................ 104

15.1 WRFD-050305 UBR+ ATM QoS Class ................................................................................................. 104

16 Link Aggregation ............................................................................................................... 105

16.1 MRFD-210103 Link Aggregation ......................................................................................................... 105

17 System Reliability .............................................................................................................. 107

17.1 WRFD-040100 Flow Control ................................................................................................................ 107

17.2 WRFD-040101 DPU Board Replaced without Service Interruption in RNC ........................................... 108

17.3 MRFD-210101 System Redundancy ..................................................................................................... 110

17.4 MRFD-210102 Operate System Security Management .......................................................................... 111

18 RAN Operation & Maintenance ....................................................................................... 114

18.1 MRFD-210301 Configuration Management .......................................................................................... 114

18.2 MRFD-210302 Performance Management ............................................................................................ 116

18.3 MRFD-210303 Inventory Management ................................................................................................. 119

18.4 MRFD-210304 Faulty Management ...................................................................................................... 122

18.5 MRFD-210305 Security Management ................................................................................................... 125

19 Message Tracing ................................................................................................................. 127

19.1 MRFD-210801 Interface Tracing .......................................................................................................... 127

19.2 MRFD-210802 User Signaling Tracing ................................................................................................. 129

20 Software Management ....................................................................................................... 131

20.1 MRFD-210401 BSC/RNC Software Management ................................................................................. 131

20.2 MRFD-210402 BTS/NodeB Software Management .............................................................................. 133

20.3 MRFD-210310 BTS/NodeB Software Downloading Through USB ....................................................... 135

21 Node B Configuration and Commissioning ................................................................... 136

21.1 WRFD-031100 BOOTP ........................................................................................................................ 136



21.2 WRFD-031101 Node B Self-discovery Based on IP Mode ..................................................................... 137

21.3 WRFD-031102 Node B Remote Self-configuration ............................................................................... 138

21.4 WRFD-031103 Node B Self-test ........................................................................................................... 139

22 License Management ......................................................................................................... 141

22.1 MRFD-210403 License Management .................................................................................................... 141

22.2 WRFD-040300 License Control for Urgency......................................................................................... 143

23 Basic Node B Functions ..................................................................................................... 145

23.1 MRFD-210309 DBS Topology Maintenance ......................................................................................... 145

23.2 WRFD-031000 Intelligently Out of Service ........................................................................................... 147

23.3 WRFD-031200 OCNS .......................................................................................................................... 148

23.4 WRFD-031400 Power off the equipment level by level ......................................................................... 148

23.5 WRFD-031500 Solar Power Device Management ................................................................................. 150

23.6 WRFD-021404 Single IP Address for Node B ....................................................................................... 151

23.7 WRFD-010212 Improved CE Mapping for E-DCH ............................................................................... 152

23.8 WRFD-020406 Intelligent Power Measurement .................................................................................... 153

24 Documentation ................................................................................................................... 154

24.1 MRFD-210701 Documentation ............................................................................................................. 154

25 Node B Antenna System Solution ................................................................................... 157

25.1 MRFD-210601 Connection with TMA (Tower Mounted Amplifier) ....................................................... 157

26 Acronyms and Abbreviations ........................................................................................... 172



1 System Improvement 1.1 WRFD-000001 System Improvement for RAN5.1

Availability

This feature is available from RAN5.1.

Summary

This feature is based on 3GPP R5 with a series of newly introduced RAN products and

functions, which meets a wider range of customer requirements and improves the

performance of the product.

Benefits

The benefits of the system improvements include the following:

Wider product range, including new products and configurations

Improvement in stability and robustness due to improved functions and algorithms

Improved performance, including higher capacity

Enhanced usability, and reduced operating costs

Description

Compatibility with 3GPP Release 5

The UMTS RAN5.1 is based on the 3GPP Release 5, which adds a number of important

functions for RAN and UE. The major new feature is the high speed downlink packet access

(HSDPA), introduced in the 3GPP Release 5. All relevant interfaces are updated according to

the June 2004 version of Release 5, and all essential 3GPP Release 5 CRs since then have

been implemented. The HSDPA Phase 2 is the enhancement of Phase 1, which provides 3.6

Mbit/s per user downlink speed.

The 3GPP TR 25.933 IP transport in the UTRAN is implemented in RAN5.1. RAN5.1 is the

first version to provide the Iub IP transmission. The IP transmission provides new solutions to

the last mile access to the Node B. Thus, it saves the cost of the transmission.

New products and configurations supported

The UMTS RAN5.1 supports the following new products and configurations:



I. RNC

Supporting quakeproof cabinets that are suitable for the scenarios with specific quakeproof

requirements

II. Node B

DBS3800 supports Band 1 (2100 MHz) RRU, 2 carriers 40 W

DBS3800 supports Band II (1900 MHz) RRU, 2 carriers 20 W

DBS3800 supports Band III (1800 M) / IX (Japanese 1800 M) RRU, 2 carriers 20 W

BTS3812E/A supports Band 1 (2100 MHz) new MTRU, 2 carriers 40 W with Doherty PA for

Band I (2100 M)

BTS3812E/A supports Band II (1900 MHz) MTRU, 2 carriers 40 W

BTS3812E/A supports Band III (1800 MHz) MTRU, 2 carriers 40 W

The new transmission interface card NUTI supports the FE ports

The BBU-interconnecting provides smooth expansion for the DBS3800. The network can

support the evolution from 3 x 1 to 3 x 2.

Thus, the WCDMA RAN5.1 enables a larger variety of radio access networks to be deployed.

High efficiency power amplifier supported

The UMTS RAN5.1 introduced the DPD + Doherty power amplifier.

The digital pre-distortion (DPD) is linearity technology which features stability, wider signal

band and ability to process multi-carrier signals. The Doherty technology is used to separately

amplify the average part and the peak part of the input signal and then combine both to

achieve high efficiency.

The efficiency of Huawei DPD + Doherty PA is 33% and above.

For the Node B BTS3812E and BTS3812AE, the output power at the Node B antenna port

can be up to 40 W. DBS3800, the output power at the Node B antenna port can be up to 40 W.

The support provided by two carriers and high output power for one RF module (MTRU or

RRU) facilitates smooth capacity expansion, and no additional RF modules are required when

the single-carrier configuration is upgraded to the dual-carrier configuration

Enhancement

None.

Dependency

None.

1.2 WRFD-000002 System Improvement for RAN6.0

Availability




Summary




Benefits


Wider product ranges, including new products and configurations

Usability enhancements, reducing operating costs

Description



functions for RAN as well as UEs. The major new feature that is introduced in the 3GPP

Release 6 is the high speed uplink packet access (HSUPA). All relevant interfaces are updated

according to the March 2006 version of Release 6.



BTS3812E/AE supports Band V (850 MHz) MTRU, 2 carriers 40 W

BTS3812E/AE supports Band VIII (900 MHz) MTRU, 2 carriers 40 W

DBS3800 supports Band V (850 MHz) RRU, 2 carriers 40 W

DBS3800 supports Band VIII (900 MHz) RRU, 2 carriers 40 W

BTS3812AE, a new outdoor macro Node B, improves the outdoor cabinet compared with

BTS3812A.

Enhancement

None.

Dependency

None.


Availability

This feature is available from RAN 6.1.



Summary


functions, which meets a wider range of customer requirements, improves the performance of

the product, and enhances some features.

Benefits


Wider product range, including new products and configurations

The BSC6810 provides higher capacity and tighter structure.

New features and enhancement.

Description



functions for RAN and UE. The major new feature that is introduced in the 3GPP Release 6 is

the HSUPA. All relevant interfaces are updated according to the March 2006 version of

Release 6.



BSC6810, the new platform RNC based on IP switch for higher capacity with compact

structure.

Clock server, the new equipment to provide synchronization signals for the Node B

A new RRU module RRU3804 is introduced in DBS3800 (2100 MHz). RRU3804 supports

60W TOC with A-Doherty 4 carrier.

DBS3800 supports Band IV (1700 MHz / DL 2100 MHz) RRU, 2 carriers 40 W

900 MHz Same band Antenna Sharing Unit (SASU), Same band Antenna Sharing Adapter

(SASA) provide a solution for the intra-band antenna system shared between the GSM900

and UMTS900

The Node B supports the AISG2.0 protocol.

The RRU3804 is a high output power remote radio unit with four carriers; the output power at

the antenna port is 60W. The RRU optimizes the mechanical layout, the new slim shape leads

to easy deployment. Due to the natural heat dissipation, the RRU without fan improves the

reliability and reduces the maintenance cost.

New features and enhancement supported

IP transmission on the Iu/Iur interface

IP transmission on the Iu/Iur interface is available from RAN6.1, which decreases the

transport cost to a great extent compared with the ATM transport cost.

Iu flex enhancement

The Iu flex enhancement includes enhanced load balancing and load re-distribution. This feature improves the performance and meets the operators load distribution strategy in the Iu flex networking scenario.



RAN sharing phase2

In RAN sharing phase2, the dedicated Iub transmission control is introduced, which refers to

the separated Iub transmission resource management for the operators sharing the RAN. With

this feature, the operators differentiated QoS requirement is guaranteed.

Other new features and enhancement

For details, please refer to the description and enhancement of the following chapters and

Optional Function Description of Huawei UMTS RAN6.1.

Enhancement

None.

Dependency

None.


Availability


Summary




Benefits


New generation Node Bs based on the modular structure and multi-mode platform

enhance the adaptability and the evolution capability. High output power amplifier for

the macro Node B extends the coverage and capacity, saves the number of the sites, and provides better user experience.

Higher throughput by supporting the HSUPA Phase 2, that helps to get faster UL speed

Description

Compatibility with the 3GPP Release 6 (2007-03)


The UMTS RAN10.0 supports the following new boards and configurations in existing

products:

The enhanced base band interface (EBBI) card is used to support the HSUPA Phase2 and

more CEs. It can be co-configured with all other boards in the macro Node Bs BTS3812E,

BTS3812A, and BTS3812AE.



The enhanced baseband optical interface (EBOI) card is used to support the RRU connection

to the macro Node Bs: BTS3812E, BTS3812A, and BTS3812AE. EBOI also supports

HSUPA phase2 and more CEs. It can be co-configured with all other boards in the macro

Node B.

The enhanced uplink process (EULP) card is used to support the HSUPA Phase2 and more

CEs, used in the macro Node Bs: BTS3812, BTS3812A, BTS3812E, and BTS3812AE. The

EULP can be co-configured with other boards in the macro Node B.

The extension base band card (EBBC) is used to support the HSUPA Phase2 and more CEs in

the BBU3806. The EBBC can support hot plugging. With the BBU+EBBC, six cells are

supported.

The BTS3812E/AE supports the WCDMA Radio Frequency Unit (WRFU), a high compact

RF module integrated with MTRU functions and MAFU functions. The WRFU supports 80W

maximum output power and four carriers. With the WRFU, BTS3812E/AE can expand

configuration to support 3 sectors * 6 carriers or 3 sectors * 8carries.

The GTPu is re-arrayed for the unified interface board.

The POUa board of the BSC6810 supports IP over channelized STM-1/OC-3 (CPOS)

Based on the new hardware platform, the UMTS RAN10.0 introduces the new Node B

product portfolio as follows:

Indoor baseband unit BBU3900.

Indoor radio filter unit WRFU. The WRFU provides four carriers and 80-W nominal output

power. Only Band 1 (2100 MHz) WRFU will be released in RAN10.0.

Outdoor remote radio unit RRU3804. The RRU3804 provides four carriers and 60-W nominal

output power. Band 1 (2100 MHz), Band II (1900 MHz), Band IV (1700 MHz / DL 2100

MHz), and Band V (850 MHz) RRU3804 will be released in RAN10.0

Different combinations of the units and auxiliary devices compose the following 3900 series

Node Bs: DBS3900/BTS3900/BTS3900A can support up to 24 cell carriers. They support

Omni directional, 2-sector, 3-sector, or 6-sector configuration. The maximum capacity of the

3900 series Node B is 1536 CEs in the uplink and 1536 CEs in the downlink.

New features and enhancement supported

HSUPA Phase 2

This feature is the enhancement of the HSUPA Phase 1. The main enhancement includes:

Peak rate: 5.76 Mbit/s per user (5.74 Mbit/s (MAC) per user)

2 ms / 10 ms TTI

Max users per cell : 60

UL compress mode (10 ms and 2 ms)

Enhanced fast UL scheduling

SRB over HSUPA, etc.

HSDPA Phase 4

This feature is the enhancement of the HSDPA Phase 3. The main enhancement includes:

F-DPCH



MBMS over HSDPA (PtP)

HS-DPCCH preamble mode

Peak rate: 14.4 Mbit/s per user (13.976 Mbit/s (MAC) per user)

SRB over HSDPA, and so on

HSPA over Iur

VoIP over HSPA (trial)

Enhanced MBMS broadcast

Robust header compression (RoHC)

Multi band HO based on service priority and band

Active queue management (AQM)

IP transmission enhancement

The following new interface ports are supported:

IP over STM-1/OC-3c (POS)

IP over channelized STM-1/OC-3 (CPOS)

Enhancement for the existing port:

Backup between IP over E1 and IP over FE

BFD and ARP checking, etc.

Other new features and enhancement

For details, please refer to the Description and Enhancement in the following chapters and

the Optional Function Description of Huawei UMTS RAN10.0.

Enhancement

None.

Dependency

None.


Availability


Summary


functions, thus meeting the customers requirements in a wider range and improving product performance.



Benefits

HSPA+ Phase 1 provides higher bandwidth and shorter delay:

Provides higher throughput and improves the system capacity greatly. This enables the operator to make more profits.

Provides a higher peak rate for users and a higher speed of data downloading for the UE.

Improves user experience and provides comprehensive functions for operators.

With the optimization of capacity and performance of VoIP over HSPA/HSPA+, this feature

meets the commercial deployment requirement of VoIP and improves the competitiveness of

operators.

The high throughput of the RNC meets operators' requirements for constructing wideband

radio networks based on HSPA and HSPA+. It can also effectively adapt to the fast

development of data services.

Description

RAN11.0 introduces HSPA+ to meet the increasing demand of subscribers for the bandwidth.

HSPA+ provides higher bit rates and shorter delay. RAN11.0 supports HSPA+ Phase 1, e.g.

64QAM, 2 x 2MIMO, and CPC.

RAN11.0 optimizes the capacity and performance of VoIP over HSPA/HSPA+, and provides

comprehensive functions for the commercial deployment of VoIP over HSPA/HSPA+.

In compliance with the 3GPP R7 2008-03, RAN11.0 provides the following new features and

enhancements:

HSPA+ Phase 1:

64QAM (downlink): provides a higher peak rate of 21 Mbit/s and increases the downlink capacity through high order modulation.

2 x 2MIMO: provides a higher peak rate of 28.8 Mbit/s and increases the downlink

capacity through parallel downlink bit streams.

Enhanced layer 2: provides flexible RLC PDU size, as the basis for 64QAM, MIMO, and the enhanced CELL_FACH function.

CPC: reduces user access time, increases the air interface capacity, and lowers UE power consumption (prolongs the battery service life).

Enhanced CELL_FACH: provides a higher peak rate of 1 Mbit/s in CELL_FACH state.

Commercial deployment of VoIP over HSPA/HSPA+: improves the capacity and

performance of VoIP over HSPA/HSPA+, and fully meets the requirement for commercial deployment.

DSAC

Optimized RNC upgrade: shortens the upgrade time and reduces the negative impact on services.

Improved RNC capacity: improves the BSC6810 throughput to 3.91G.

Newly added board: The BTS3812E/AE has a new downlink baseband processing unit,

namely, EDLP. The EDLP provides a downlink processing capacity of six cells, 384 CEs, and DL 64QAM and MIMO of HSPA+.



Enhancement

None.

Dependency

None.


Availability


Summary

This feature is based on new boards in RNC, which meet the customers requirements in a wider range and improve product performance.

Benefits

New boards are introduced in RAN11.1. With these new boards, the operators are benefited

by the merits list below:

The RNC capacity increases. The PS throughput doubles compared to that with legacy

boards.

The operators can use less hardware to reach the capacity requirement. The CAPEX is reduced.

With new boards, the spare hardware number also saved.

Description

RAN11.1 introduces several boards, they are:

SPUb board: charge in control plane service processing

DPUe board: charge in user plane data processing

AOUc: ATM interface board with 4 CSTM-1 exports

UOIc: ATM interface board with 8 STM-1 exports

POUc: IP interface board with 4 STM-1 exports

FG2c: IP interface board with 12 FE or 4 GE exports

GOUc: IP interface board with 4 GE exports

With the new boards, the RNC capacity increases.

Enhancement

None



Dependency

None


Availability


Summary

This feature provides the following functions:

Complies with the 3GPP Release 8 specifications (March 2009).

Adds new hardware to the Node B to meet operators' requirements for capacity expansion and function improvement.

Increases system energy efficiency and supports green energy.

Enhances system maintainability.

Benefits

Operators benefit from the following aspects of this feature:

Complies with the 3GPP Release 8 specifications, improves user experience, and

increases system capacity.

Supports higher uplink rate and larger system capacity by adding new hardware to the Node B.

Increases system energy efficiency, supports green energy, and thus reduces operators' OPEX.

Enhances maintainability and thus reduces operation and maintenance (OM) costs.

Description Complying with the 3GPP Release 8 specifications (March 2009)

The RAN12.0 features are developed in compliance with the 3GPP Release 8

specifications. In 3GPP Release 8, a new series of important functions concerning the

radio access network and UEs are introduced. These features include UL Layer 2

Improvement, DL 64QAM+MIMO, and Dual Cell-HSDPA (DC-HSDPA), which are

supported by Huawei RAN12.0. In addition, all relevant interfaces are updated according to the 3GPP R8 specifications (March 2009).

Adding new hardware to the Node B to meet operators' requirements for capacity

expansion and function improvement

With PS services growing rapidly, the demand for uplink data rates from users increases.

The features such as UL 16QAM, Interference Cancellation (IC), and Frequency Domain

Equalization (FDE) further improve the uplink single user throughput and cell

throughput, and shorten file upload delay for PS users.

The existing baseband boards do not support UL 16QAM, IC, FDE. In this case, the

Node B needs to be configured with the following new baseband boards to meet operators' requirements for capacity expansion and function improvement:



WBBPd for the BBU3900, which is responsible for the enhanced uplink and

downlink channels user plane processing;

EBBCd for the BBU3806, which responsible for the enhanced uplink and downlink channels user plane processing;

EULPd for the BTS3812E/BTS3812AE, which responsible for the enhanced uplink channels user plane processing.

New RF unit: RRU3806 for DBS3800/DBS3900

The more descriptions of these boards can be obtained in Node B product description.

NodeB signaling processing ability enhancement

Penetration rate of smart phone is higher and higher every day, due to the high quality

services provided by the mobile broadband network. Huge quantity of signaling was

brought by the special behavior of smart phone. NodeB signaling processing ability was

enhanced to provide strong support for the operators marketing promotion also provide better experience for the end user in the high load network.

Increasing system energy efficiency and supporting green energy

Currently, energy saving, emission reduction, and green energy become operators' major

concerns. RAN12.0 further optimizes the algorithm of Energy Efficiency Improved and

improves PA efficiency when the system is lightly loaded. In addition, the system

provides the functions of monitoring and managing green energy e.g. solar energy, and

diesel power.

Enhancing system maintainability

Node B hardware self-diagnosis: The boards perform the self-diagnosis function to determine whether the fault on the live network is a board fault.

Optimized software management: In the uplink, different Differentiated Service Code

Point (DSCP) values and Virtual Local Area Network (VLAN) Class of Service (COS)

values can be set for OM services of different characteristics. The VLAN COS values

indicate the priorities of traffic streams. In the downlink, limitation is applied to the

speed of download by FTP and downlink windows are properly arranged so that services are not affected by FTP.

Improved transmission maintainability and testability: Transmission maintainability

and testability are improved for both ATM and IP transport through the support PVC,

CID (for ATM) or UDP (for IP) loopback functions. They are used to identify

transmission link faults accurately. The transport layer implements 24-hour online

testing/counting functions, including measurements of packet loss ratio, delay, and jitter. Users can obtain statistical information only through one command.

Enhancement

None.

Dependency

None.




Availability


Summary

This feature improves the RAN system in the following aspects:

This feature supports the protocols defined in the 3GPP R9, March 2010, and other R9-related new functions.

This feature improves the RNC interface processing capability and interface board

capability.

This feature enhances system maintainability and optimizes troubleshooting and real-time tracing functions.

This feature increases system energy efficiency.

Benefits

This feature supports a number of new functions specified in the 3GPP R9, improves user

experience, and increases system capacity.

With this feature, the RNC improves its interface processing capability and interface board

capability.

This feature enhances system maintainability. It helps quickly trace and locate faults in

interfaces, services, or equipment, and reduce the OPEX for operators.

This feature increases system energy efficiency and also reduces the OPEX for operators.

Description 3GPP R9, March 2010 supported

The UMTS RAN13.0 is developed on the basis of 3GPP R9 protocols, which introduce a

series of radio access network (RAN) and UE-related new functions. The new functions

of the 3GPP R9 include DC-HSDPA+MIMO, among which RAN13.0 supports the

DC-HSDPA+MIMO function. All the RAN-related interfaces are updated in compliance

with the 3GPP R9, March 2010.

RNC processing board capability enhanced

The processing capability of the RNC DPUe board is optimized. The DPUe can support

a throughput of 800 Mbit/s.

Through the introduction of the new switching board, the switching capacity of RNC

platform can reach 480 Gbit/s.

System maintainability enhanced, new troubleshooting and real-time tracing functions provided

The tracing function enables the interface board to capture packets on lines without using

a third-party tool. In RAN12.0, the tracing point is at the terminating point of a protocol,

generally at the processing board of the control plane and user plane. Differently, the



tracing point of RAN13.0 is moved to the interface board where there are nodes that data

streams pass through.

The transmission fault locating function is enhanced, which involves SAAL/SCTP

tracing, fault self-check of VLAN configuration, and automation of BOOTP fault

information collection. The function helps quickly locate transmission problems on the

Iu, Iub, and Iur interfaces.

The access fault locating function is enhanced, which involves cell-level PRACH traffic

measurement and cell-level combined service measurement. The function helps quickly

locate problems in access-related KPIs, such as Sleeping Cell and Low Access Success

Rate.

The function of locating faults in NodeB equipment and peripherals is enhanced, which

involves active reporting of fault logs about the monitoring board of the NodeB and

automatic searching function supported by the monitoring board on the RS485 bus of the

NodeB. The function helps reduce maintenance effort in locating faults in equipment.

System energy efficiency increased

The power management function is optimized to increase power supply efficiency of a

lightly loaded system.

Enhancement

None

Dependency

None



2 Standards Compliance 2.1 WRFD-010101 3GPP R9 Specifications

Availability


Summary

The UTRAN system software of RAN13.0 complies with the 3GPP Release 9 specifications

(March 2010).

Benefits

The compliance with 3GPP Release 9 provides a basis for implementing the new features and

enhanced functions defined in 3GPP Release 9. This also enables the provision of more

high-performance services and thus increases operators' competitive edge.

This feature enables the interconnection with other network elements (NEs) that comply with

3GPP Release 99, Release 4, Release 5, Release 6, Release 7, Release 8, or Release 9, thus

protecting operators' investment.

Description

RAN2.0 complies with 3GPP Release 99/Release 4.

RAN3.0 and RAN5.0 comply with 3GPP Release 99/Release 4/Release 5.

RAN6.0 and RAN6.1 comply with 3GPP Release 99/Release 4/Release 5/Release 6 (March

2006).

RAN10.0 complies with 3GPP Release 99/Release 4/Release 5/Release 6 (March 2007).

RAN11.0 complies with 3GPP Release 99/Release 4/Release 5/Release 6/Release 7 (March

2008).

RAN12.0 complies with 3GPP R99/Release 4/Release 5/Release 6/Release 7/Relase 8 (March

2009).



RAN13.0 complies with 3GPP Release 99/Release 4/Release 5/Release 6/Release 7/Release

8/Release 9 (March 2010). In Release 9 the DC-HSUPA and MIMO+DC-HSDPA features are

available which offer higher data rates for single user in uplink and downlink.

Enhancement

None

Dependency

Dependency on RNC hardware

None

Dependency on NodeB hardware

None

Dependency on other RAN features

None

Dependency on other NEs

For the new features introduced in 3GPP Release 9 and the enhanced features of interfaces,

the core network interfaces and user interfaces also need to be upgraded to ensure compliance

with the protocols.

2.2 WRFD-010102 Operating Multi-band

Availability


Summary

This feature meets the requirement of the operators for use of different frequency bands in

different regions. In addition, the Node B supports the co-cabinet of different frequency bands,

thus saving the deployment cost for the operators and meeting the space requirement.

Benefits

The Node Bs can be deployed widely according to the operators frequency requirement.

The multi-band supported Node B can save the cost of the hardware investment.

Description

The following 3GPP defined UMTS frequency bands are supported.

Operating Band UL Frequencies

UE transmit, Node

B receive

DL frequencies

UE receive, Node B

transmit



Band I (2100M) 19201980 MHz 21102170MHz

Band III/IX (1800M) 17101785 MHz 18051880 MHz

Band II (1900M) 18501910 MHz 19301990MHz

Band V/VI (850M) 824849MHz 869894MHz

Band VIII (900M) 880915 MHz 925960 MHz

Band IV(1.7/2.1G) 17101755 MHz 21102155 MHz

The macro Node Bs provide multi-band co-located in one cabinet. Due to the flexible design

of Huawei Node B architecture, the multi-band only has impact on the RF system. The

baseband modules including power, transmission, and channel cards are shared by different

bands. The operators can use the required frequency segments to save the footprint of the

Node B and improve the baseband usage

The feature is implemented in the Node B and RNC.

Different frequency bands should be configured with different RF modules.

Enhancement

In RAN5.0, the macro Node B supports the 1900M and 1800M frequency bands.

In RAN5.1, the RRU supports the 1900M and 1800M frequency bands.

In RAN6.0, the 850M and 900M frequency bands are supported by the macro Node B and

RRU.

In RAN6.1, the AWS (UL 1700M/DL 2100M) frequency band is supported by the RRU.

The BTS3900/BTS3900A only supports Band1 2100M and 850M in RAN10.0.

Dependency

None.

2.3 WRFD-010201 FDD Mode

Availability


Summary

Huawei RAN supports the FDD mode.

Benefits

This feature defines the mode supported by Huawei RAN.



Description

The 3GPP specification comprises Frequency Division Duplex (FDD) mode and Time

Division Duplex (TDD) mode. FDD mode uses individual frequency band for the uplink and

downlink. TDD mode uses the same frequency band for the uplink and downlink. Huawei

RAN only supports FDD mode.

Enhancement

None.

Dependency


The relevant NEs should comply with the 3GPP specifications in FDD mode.



3 RABs and Services 3.1 WRFD-010510 3.4/6.8/13.6/27.2 kbit/s RRC Connection and RAB Assignment

Availability


Summary

This feature supports the RRC connection/release of different rates and RAB assignment to

meet the QoS requirements for different services.

Benefits

This is an essential feature for the UMTS RAN.

Description

RAN11.0 supports the 3.4/6.8/13.6/27.2 kbit/s RRC connection and Radio Access Bearer

(RAB) assignment. The RNC will map the RRC connection request and the RAB assigned by

the CN according to different QoS requirements.

Mapping of channel types

For RRC connection, the operators can decide which channel type (CCH/DCH) should be configured according to the RRC SETUP REQUEST message.

For RAB assignment, the operators can decide in which cell the RAB should be set up.

Mapping of RAB parameters

The associated transport channel and physical channel parameters are configured based

on the channel types. Huawei RAN provides different sets of configuration parameters

for typical services. These parameters are supported by each typical service. If no service

class matches the feature, choose the most approximate parameters. Moreover, the

operators can add new service classes and configure associated parameters. These

features can fully utilize the services supported by the system.

The PS streaming/interactive/background RAB can also be set up on the HS-DSCH or

E-DCH. These features include the following optional features:

WRFD-010610 HSDPA Introduction Package



WRFD-010612 HSUPA Introduction Package

WRFD-010630 Streaming Traffic Class on HSDPA

WRFD-010632 Streaming Traffic Class on HSUPA

SRB always occupies SF 256 at the rate of 3.4 kbit/s or 6.8 kbit/s. It can increase the signaling

transmission speed and shorten the delay at the rate of 6.8 kbit/s. Therefore, if all the

downlink services of the UE are set up on the HS-DSCH and the SRB is carried on the DCH

in the downlink, the SRB has a rate of 6.8 kbit/s.

Enhancement

RAN3.0 supports RRC connection of 13.6 kbit/s.

RAN6.1 supports RRC connection of 27.2 kbit/s.

RAN11.0 supports RRC connection of 6.8 kbit/s and the retainment of SRB of 6.8 kbit/s.

Dependency

None.

3.2 WRFD-010501 Conversational QoS Class

Availability


It is introduced in 3GPP R99.

Summary

The RNC supports the conversational services of CS and PS domains issued from the CN and

sets up appropriate RABs based on the QoS.

Benefits

The QoS-supported conversational services provide guaranteed QoS for upper-layer services.

Description

QoS classes also refer to traffic classes. The following four QoS classes are defined in 3GPP:

Conversational class

Streaming class

Interactive class

Background class

The main difference between the preceding QoS classes lies in the extent to which the traffic

is delay sensitive. Conversational class is meant for traffic which is very delay sensitive and is

mainly used to carry real time traffic flows. Fundamental characteristics for real time

conversational QoS class include the following:



Preserved time relations (variation) between information entities of the stream.

Conversational pattern (stringent and low delay).

There are conversational class services in both CS and PS domains. The most well known

conversational traffic is speech and video phone services in CS domain and VoIP in PS

domain.

Huawei RAN supports the following conversational services as fundamental features:

CS AMR speech services of 8 rates, including 12.2 kbit/s, 10.2 kbit/s, 7.95 kbit/s, 7.4 kbit/s, 6.7 kbit/s, 5.9 kbit/s, 5.15 kbit/s, and 4.75 kbit/s.

CS transparent data services (conversational class) with 64 kbit/s, 56 kbit/s, 32 kbit/s, and 28.8 kbit/s.

PS bidirectional symmetric speech services at the rates of 64 kbit/s, 42.8 kbit/s, 32 kbit/s,

16 kbit/s, and 8 kbit/s.

Enhancement

None.

Dependency


Both CN and UE should support this service.

3.3 WRFD-010502 Streaming QoS Class

Availability



Summary

The RNC supports the streaming services of CS and PS domains issued from the CN and sets

up appropriate RABs based on the QoS.

Benefits

The QoS-supported steaming services provide guaranteed QoS for upper-layer services.

Description



Streaming class

Interactive class

Background class




is delay sensitive. Streaming class is new to data communication, thus it raises a number of

new requirements in both telecommunication and data communication systems. Streaming

class is characterized by the time relations (variation) between information entities (i.e.

samples, packets) of the stream that should be preserved, although it does not have strict

requirements on transfer delay. Fundamental characteristics of streaming QoS class include

the following:

Preserved time relations (variation) between information entities of the stream:

There are streaming class services in both CS and PS domain. The most well known

streaming traffic is FAX in CS domain and streaming video in PS domain.

Huawei RAN supports the following streaming services as fundamental features:

CS nontransparent data services of 57.6 kbit/s.

PS bidirectional symmetric or asymmetric streaming services at the rates of 384 kbit/s, 256

kbit/s, 144 kbit/s, 128 kbit/s, 64 kbit/s, 32 kbit/s, and 8 kbit/s.

PS unidirectional asymmetric streaming services at the rates of 384 kbit/s, 256 kbit/s, 144

kbit/s, 128 kbit/s, 64 kbit/s, 32 kbit/s, 8 kbit/s.

PS streaming service can also be carried on HSDPA and HSUPA which are optional features

and described in WRFD-010610 HSDPA Service and WRFD-010612 HSUPA Service.

Enhancement

RAN6.0 supports PS 384 kbit/s bidirectional symmetric or asymmetric streaming service.

Dependency



3.4 WRFD-010503 Interactive QoS Class

Availability



Summary

The RNC supports the interactive services of CS and PS domains issued from the CN and sets

up appropriate RABs based on the QoS.

Benefits

The QoS-supported interactive services provide guaranteed QoS for upper-layer services.



Description



Streaming class

Interactive class

Background class


is delay sensitive. Interactive class is another typical data communication scheme that is

characterized by the request response pattern of the end-user. At the message destination,

there is an entity expecting the message (response) within a certain time. Round trip delay

time is therefore one of the key attributes. Another characteristic is that the contents of the

packets are transparently transferred (with low bit error rate). Fundamental characteristics of

Interactive QoS class include the following:

Request response pattern.

Preserve payload content.

Interactive class services apply only to the PS domain. The most well known interactive

traffic is web browsing.

Huawei RAN supports the following interactive services as fundamental features:

PS bidirectional symmetric or asymmetric interactive services at the rates of 384 kbit/s, 256

kbit/s, 144 kbit/s, 128 kbit/s, 64 kbit/s, 32 kbit/s, 16 kbit/s, 8 kbit/s and 0kbit/s.

The higher rates can only be supported on HSDPA and HSUPA which are optional features


Enhancement

RAN3.0 supports UL PS service of 384 kbit/s.

Dependency



3.5 WRFD-010504 Background QoS Class

Availability





Summary

The RNC supports the background services of CS and PS domains issued from the CN and

sets up appropriate RABs based on the QoS.

Benefits

The QoS-supported background services provide guaranteed QoS for upper-layer services.

Description



Streaming class

Interactive class

Background class


is delay sensitive. Background class is one of the typical data communication schemes. It is

characterized by the fact that the destination does not expect the data within a certain time.

The scheme is thus more or less insensitive to the delivery time. Another characteristic is that

the contents of the packets are transparently transferred (with low bit error rate). Fundamental

characteristics of background QoS class include the following:

The destination does not expect the data within a certain time.

The payload content is preserved.

Background class services apply only to the PS domain. The most well known background

traffic is background download or E-mails.

Huawei RAN supports the following background services as fundamental features:

PS bidirectional symmetric or asymmetric background services at the rates of 384 kbit/s, 256

kbit/s, 144 kbit/s, 128 kbit/s, 64 kbit/s, 32 kbit/s, 16 kbit/s, 8 kbit/s and 0kbit/s.

The higher rates can only be supported on HSDPA and HSUPA which are optional features


Enhancement

RAN3.0 supports UL PS service of 384 kbit/s.

Dependency





3.6 WRFD-010609 Multiple RAB Introduction Package (PS RAB < 2)

Availability



Summary

This feature provides multi-service combinations to meet the request for concurrent services.

Benefits

Multi-RAB support capability provides operators with more service solution choices.

Description

Multi-RAB can provide more abundant services simultaneously to the upper layer. In the case

of multi-RAB that has less than two PS RABs, Huawei supports the following specifications:

Combination of two CS services (except for two AMR speech services)

One CS service + one PS service

Two CS services + one PS service (except for two AMR speech services)

In all the preceding combinations, the bit rates of CS and PS services are not limited. That is,

any bit rates of CS and PS services defined in WRFD-010501 Conversational QoS Class,

WRFD-010502 Streaming QoS Class, WRFD-010503 Interactive QoS Class, and

WRFD-010501 Background QoS Class can be selected in the combination.

The PS conversational/streaming/interactive/background services can also be mapped to

HS-DSCH or E-DCH. These features need the support of the optional features WRFD-010610

HSDPA Introduction Package and WRFD-010612 HSUPA Introduction Package.

Enhancement

None.

Dependency


Both CN and UE should support the specifications for multiple RABs.

3.6.2 WRFD-01060901 Combination of Two CS Services (Except for Two AMR Speech Services)

Availability




Summary

Huawei supports combination of two CS services (except for two AMR speech services).

Benefits


Description

Huawei supports combination of two CS services (except for two AMR speech services).

Enhancement

None.

Dependency



3.6.3 WRFD-01060902 Combination of One CS Service and One PS Service

Availability


Summary

Huawei RAN supports the combination of one CS service and one PS service.

Benefits


Description

Huawei RAN supports the combination of one CS service and one PS service.

Enhancement

None.

Dependency





3.6.4 WRFD-01060903 Combination of Two CS Services and One PS Service (Except for Two AMR Speech Services)

Availability


Summary

Huawei RAN supports the combination of two CS services and one PS service (except for

two AMR speech services).

Benefits


Description

Huawei RAN supports the combination of two CS services and one PS service (except for

two AMR speech services).

Enhancement

None.

Dependency



3.7 WRFD-021104 Emergency Call

Availability



Summary

This feature provides the emergency call a higher priority over common calls to ensure that

the emergency call gets preference to access the network.

Benefits

It is an essential feature for UMTS RAN. It enables the emergency call to have a higher

priority over other services in resource allocation.



Description

When an emergency call is triggered, Establishment Cause in the RRC Connection Request message is set to Emergency Call.

Emergency call always has priority over the ordinary calls. When enough resources are not

present in the cell, pre-emptive action is triggered on ordinary calls with lowest priority to

guarantee that the emergency call can access the network and be served.

Enhancement

None.

Dependency

None.



4 RAN Architecture & Functions 4.1 MRFD-210604 2-Way Antenna Receive Diversity

Availability

This feature is available from GBSS6.1 and RAN 2.0.

Summary

This feature is a technique for improving the receive performance of the uplink channels.

Benefits

This feature improves receiver sensitivity and uplink coverage, thus reducing the CAPEX.

Description

With this feature, the same signal is received by two antennas. Then the two ways of signals

on the two antennas are combined after being processed. Thus, the signal attenuation is

reduced.

This feature enhances the RX capability of uplink channels. Huawei MBTS supports both

receive diversity and none receive diversity.

With this feature, the MBTS does not require additional devices and algorithms. Compared

with one-way none receive diversity, this feature requires twice the number of RX channels.

In typical scenarios, the receiver sensitivity can be improved by 2 to 3 dB.

Enhancement

None.

Dependency

Impacts on the hardware of the MBSC

None.

Impacts on the hardware of the MBTS

In receive diversity mode, the Node B should provide sufficient RF channels and

demodulation resources to meet the requirements for the number of antenna diversities.



Dependency on other features of the GBSS/RAN

None.


None.

4.2 WRFD-010205 Cell Digital Combination and Split

Availability


Summary

This feature enables multiple sectors to use the resources in the same cell, thus improving

system spectrum efficiency and resource utilization. The DBS3800 and DBS3900 support this

feature.

Benefits

Compared with the analog combination and split, the digital combination and split can

provide larger capacity and wider coverage without bringing additional noises and signal

losses. In this manner, cell distribution can be adjusted through software to adapt to actual

traffic distribution and changes, thus improving CE resource utilization and operation

benefits.

Description

Cell split means that a cell in the Node B is split into multiple sectors through the digital

combination and split and the sectors can cover multiple areas. Cell split applies to scenarios

such as indoor coverage and high-speed railway or expressway coverage. Based on cell split,

the antennas in different sectors can transmit and receive signals from the same cell. When

expanding the capacity or adjusting the network, you can flexibly configure the mapping

between the RRU and cell through software without changing the hardware. The DBS3800

and DBS3900 support cell split and digital combination and split.

The following figure shows the logical structure of the digital combination and split. The

downlink digital split means that a downlink signal is split into two signals, that is, the

downlink signal from the upper-level RRU or baseband unit is simultaneously sent to the RF

Tx path of the RRU and the lower-level RRU. The uplink digital combination means that two

uplink signals are combined into one signal, that is, the uplink signals from the RF Tx path of

the RRU and the lower-level RRU are combined and then sent to the upper-level RRU or

baseband



unit.

Each RRU or pRRU has an independent antenna that covers different sectors. One cell can be

set for multiple RRUs so that they have the same scrambling code.

This feature is introduced to Huawei pRRU and RRU, and it can be applied to indoor

coverage scenario.

RF modules, RRU 3828 and RRU3829, which are introduced in RAN13.0 can only support

maximum of 4 carriers when they are implemented for Cell Digital Combination and Split.

Enhancement

None.

Dependency

Dependency on Node B hardware

Only DBS3800/DBS3900 support this feature, RRU3801c cannot support this feature.

4.3 WRFD-010208 Fast Power Congestion Control (FCC)

Availability


Summary

Fast power congestion control (FCC) is implemented on the Node B side. This feature aims to

quickly rectify system overload to prevent the output power from exceeding the maximum

power allowed by hardware.

RRU

Combined

RF Tx Path

RF Rx Path

Du

ple

xer

CPRI

Interface

CPRI

Interface

Slave

Uplink

Split

Master

Upper-level RRU or BBU

Lower-level RRU



Benefits

This feature enables full utilization of Power Amplifiers for traffic load, especially for

dynamic power sharing in one carrier between R99 and HSDPA.

Description

FCC is a Node B function that complements the RNC congestion control. The function

supervises the output power per slot that users (all users) demand at the same time, using the

same time scale as the fast power control function.

Huawei provides the DL automatic level control (ALC) function as the method of fast power

congestion control in the Node B, in order to limit the output power and avoid the PA

saturation. The ALC supervises the transmit power in real time. When the input power reaches

or exceeds the predefined threshold, the ALC can increase the TX channel attenuated signals

to keep the output power lower than the threshold, thus avoiding the PA saturation.

The Node B uses the FCC to quickly control the output power, the control Reaction time is

1024chip, which is fast enough to fully prevent saturation of the TX chain or overdriving of

the power amplifier without the need for power margins.

Therefore, cell behavior remains robust at maximum load without running the risk of dropped

cells or modulation inaccuracy. In addition, the RNC congestion and admission thresholds can

be set to higher levels, which increase cell capacity without compromising overall quality of

service.

Enhancement

None.

Dependency

None.

4.4 WRFD-010211 Active TX Chain Gain Calibration

Availability


Summary

This feature enables the monitoring and adjustment of digital channel gains, thus ensuring

stable output power.

Benefits

This feature provides high output power accuracy for the Node B, and reduces the margins

required in network dimensioning. Thus, the entire power can be used for traffic.



Description

The active TX chain gain calibration can increase the accuracy of the downlink transmit

power (for example, the power accuracy of the 3900 series Node B is +/- 0.6 dB), thus

reducing the protection band reserved for power calculation in network planning and

improving the utilization of transmit power.

Performance drift occurs on all RF hardware. An RF part (for example, TRX, PA, RF

connector, or duplexer) has a different gain due to different temperatures, frequencies, and lot

numbers. Such a gain difference leads to a 1.5 dB to 2 dB error in the Node B transmit power.

The active TX chain gain calibration can reduce the changes in analog channel gains caused

by different temperatures, frequencies, and lot numbers, thus ensuring a stable total gain of

links. The active TX chain gain calibration calculates the difference between the downlink

input power and transmit power and then adjusts digital channel gains according to the

transmit power on the analog channel. Gain control is performed in real time, thus ensuring

the accuracy of transmit power.

Enhancement

None.

Dependency

None.

4.5 WRFD-010202 UE State in Connected Mode (CELL-DCH, CELL-PCH, URA-PCH, CELL-FACH)

Availability


Summary

Huawei RAN supports four states of the UE in connected mode: URA_PCH, CELL_PCH,

CELL_FACH, and CELL_DCH. This feature can save radio resources effectively.

Benefits

This feature enables UEs to select associated states according to the QoS requirements. It

increases the utilization of resources and system capacity, and users do not feel the degrade of

network performance. This feature is a mandatory feature of the UMTS RAN.

Description

The 3GPP specifications define four states of the UE in connected mode: CELL_DCH,

CELL_PCH, URA_PCH, and CELL_FACH. Huawei RAN supports these four UE states.

URA_PCH/CELL_PCH



In the URA_PCH/CELL_PCH state, the UE has no available DCCH or DTCH. When

the UE initiates a call or receives a paging message from the core network, it starts the

CELL_UPDATE procedure. It can also use the periodic URA UPDATE or

CELL_UPDATE procedure to maintain the connection with the network. The UE is not

assigned the DCCH or DTCH. Therefore, the UE does not consume radio resources, and no service is available.

CELL_FACH

In the CELL_FACH state, the UE maps the DCCH and DTCH to the common channel

that carries RRC signaling and traffic data. The UE also performs cell reselection

through the Cell Update procedure to camp on an appropriate cell. Different UEs can

share common resources. Therefore, the QoS of some services, for example, transmission delay and bandwidth, cannot be ensured.

CELL_DCH

In the CELL_DCH state, the UE maps the DCCH and DTCH to the dedicated channel

that carries RRC signaling and traffic data. When the cell load increases, the QoS of

services can be ensured because dedicated resources are allocated. When the UE uses the HSDPA or HSUPA services, it stays in the CELL_DCH state.

These four states can change according to the characteristics of services used by the UE. This

process is called channel type switching. For details, see WRFD-021101 Dynamic Channel

Conversion Configuration (DCCC).

For details on the channel type switching in the HS-DSCH state and other states, see

WRFD-01061111 HSDPA State Transition.

RAN12.0 supports the Fast Dormancy procedure of the UE. The process for enabling UEs

whose version are below 3GPP R8 to enter the power saving mode is controlled by the

inactive timer delivered by the network side, which takes a lot of time. Currently, some UEs

of 3GPP Release 8 support the Fast Dormancy function defined in 3GPP TS 25.331 CR3483.

When the UE performs only PS services and the PS data transfer is complete, the UE

immediately sends the RNC the SIGNALLING CONNECTIONI RELEASE INDICATION

message, which carries the cause value "UE Requested PS Data session end." Upon receiving

the message, the RNC releases the RRC connection of the UE and enables the UE to rapidly

enter the power saving mode.

Enhancement

In RAN2.0, the four states and transition algorithm are implemented.

RAN5.0 introduces the HSDPA feature and thus supports UEs in the CELL_DCH (HS-DSCH)

state.

RAN6.0 introduces the HSUPA feature and thus supports UEs in the CELL_DCH (E-DCH)

state.

RAN12.0 supports the Fast Dormancy procedure of the UE.

RAN12.0 introduces FACH congestion control mechanism, this mechanism can reduce the

FACH congestion by switch the UE status directly from CELL_DCH to IDLE or CELL_PCH

to CELL_DCH, CELL_FACH status is not needed during the switch. High priority service

can get a higher priority to access the network during the FACH congestion.

Dependency

Dependency on the RNC hardware



None.

Dependency on the Node B hardware

None.

Dependency on other RAN features

None.


UEs must support associated states.

The Fast Dormancy procedure of the UE must comply with 3GPP TS 25.331 CR3483.

4.6 WRFD-010401 System Information Broadcasting

Availability


Summary

This feature supports system information as stipulated in multiple protocols. Based on the

system information, the network can provide UEs with rich access layer and non access layer

information required for running UEs on the network, and the information that controls UE

behavior.

Benefits

This feature provides UEs with rich access layer and non access layer information required

for running UEs on the network, and the information that controls UE behavior.

Description

System information broadcasting which is required by the UE for its operation in the network

provides UE with the Access Stratum and Non Access Stratum information.

The system information is organized in a tree-type manner. A master information block gives

references and scheduling information to a number of system information blocks in a cell. The

system information blocks contain the actual system information.

Scheduling of system information blocks is performed by the RRC layer in UTRAN. RRC

can automatically calculate the repetition period and position of each SIB segment based on

its importance.

The key information of each SIB Huawei supported is listed in the following table.

System

Information Block

A Content



System

Information Block

A Content

Master information

block

SIB scheduling information

Scheduling block 1 l SIB scheduling information

Scheduling block 2 SIB scheduling information

SIB1 P NAS information and timers used by UE in

connected mode and idle mode

SIB2 URA Id

SIB3 C

l

l

Parameters of cell selection and reselection in idle

mode

Parameters of hierarchical cell in idle mode

SIB4 C

e

l

l

Parameters of cell selection and reselection in

connected mode

Parameters of Hierarchical cell in connected mode

(CCH state)

SIB5 l

l

Parameters of common physical channels for UE in

idle mode(PRACH, AICH, PICH, S-CCPCH)

SIB6 l

l

Parameters of common physical channel in

connected mode

SIB7 l UL interference, dynamical persistence level

SIB11 l Measurement control information in idle mode

SIB12 C Measurement control information in connected mode

SIB18 l PLMN ID of neighboring cells

Enhancement

RAN5.0 supports SIB4, SIB6, and SIB12.

RAN10.0 supports SIB11 bis. SIB11 bis contains cell measurement control information, new

intra-frequency cell information, new inter-frequency information, and new inter-RAT cell

information.



Dependency

None.

4.7 WRFD-010301 Paging UE in Idle, CELL_PCH, URA_PCH State (Type 1)

Availability


Summary

This feature supports paging type 1. UTRAN sends a paging message to the UE in idle,

CELL_PCH, or URA_PCH state through the paging control channel (PCCH).

Benefits

When an UE is in idle, CELL_PCH, or URA_PCH state, UTRAN sends a paging message to

the UE through the PCCH.

Description

Paging type 1 procedure is used to transmit paging information to the selected UEs in idle

mode, CELL_PCH or URA_PCH state using the PCCH. With this feature, upper layers in the

network can:

Trigger UE establishing a RRC signaling connection.

Trigger CELL UPDATE procedure of UE in CELL_PCH or URA_PCH state.

Trigger reading of updated system broadcast of UE in idle mode, CELL_PCH or URA_PCH

state.

Trigger releasing signaling connection of UE in CELL_PCH or URA_PCH state.

Enhancement

None.

Dependency

None.



4.8 WRFD-010302 Paging UE in CELL_FACH, CELL_DCH State (Type 2)

Availability


Summary

This feature supports paging type 2. The network can control the UE in CELL_FACH or

CELL_DCH state through the dedicated control channel (DCCH).

Benefits

The network can control the UE in CELL_FACH or CELL_DCH state which has DCCH with

paging type 2 procedures.

Description

In paging type 2, UTRAN sends a paging message to the UE in CELL_FACH or CELL_DCH

state through the DCH or FACH.

Enhancement

None.

Dependency

None.



5 Channel Resource Management 5.1 WRFD-020900 Logical Channel Management

Availability


Summary

This feature supports multiple logical channels to carry data transfer services offered by

MAC.

Benefits

This feature provides the basis for data transfer and resource management algorithm.

Description

A set of logical channel types are defined for different kinds of data transfer services offered

by MAC. Each logical channel type is defined by what type of information is transferred.

Generally, logical channels are classified into the following two groups:

Control channels (for the transfer of control plane information).

Traffic channels (for the transfer of user plane information).

Control channels are used for the transfer of control plane information. They are as follows:

Broadcast Control Channel (BCCH)

Paging Control Channel (PCCH)

Common Control Channel (CCCH)

Dedicated Control Channel (DCCH)

Traffic channels are used for the transfer of user plane information. They are as follows:

Dedicated Traffic Channel (DTCH)

Common Traffic Channel (CTCH)

MBMS Traffic Channel (MTCH)

Mapping between logical channels and transport channels is as follows:

I. In Uplink,

Documents

RAN13.0 Basic Feature Description