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Huawei Airbridge BTS3606A User Manual

Huawei Airbridge BTS3606A
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Technical Manual
Airbridge BTS3606A CDMA Base Station
System Description
Chapter 4 Main Functions
4-1
Chapter 4 Main Functions
The BTS3606A supports the following CDMA2000 1x standards:
l The Um interface supports the TIA/EIA IS-2000 Rel.A standard and is compatible
with the TIA/EIA-95-A/B standard.
l The minimum performance of the BTS3606A satisfies TIA/EIA-97-D
requirements.
The BTS3606A supports the following 1xEV-DO standards:
l The Um interface supports the C.S0024-0 standard.
l The minimum performance of the BTS3606A satisfies C.S0032-0 requirements.
4.1 Power Control and Rate Control
The CDMA system is a self-interference system. Every subscriber is an interference
source to other subscribers. If it is possible to ensure that every MS transmits at the
minimum power it needs, the whole system capacity can reach the maximum.
Therefore, power control directly affects the system capacity and the service quality.
Operating in the CDMA2000 1x system, the BTS3606A adopts power control
mechanism. Power control is classified into forward power control and reverse power
control. Forward power control is used to control the transmit power of the BTS.
Reverse power control aims to control the transmit power of the MS.
Operating in the 1xEV-DO system, the BTS3606A adopts rate control in the forward
direction, and the rate control plus power control in the reverse direction.
I. Forward power control
There are several methods to realize forward power control, depending on the MS
protocol version and the system parameters.
l Power control based on PMRM
When the MS uses the Power Measurement Report Message (PMRM) for power
control, it determines the method and frequency of reporting PMRM according to
the received control message contained in the system parameter message.
l Power control based on EIB
When the MS uses the Erasure Indicator Bit (EIB) for power control, it detects
forward frame quality and sends this information to the BTS using EIB. The BTS
will adjust the transmit power according to the EIB information.
l Forward fast power control
The MS adjusts the BTS power according to the power control bit. The power
control bit can be transmitted at a maximum speed of 800 bps.

Table of Contents

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Huawei Airbridge BTS3606A Specifications

General IconGeneral
BrandHuawei
ModelAirbridge BTS3606A
CategoryAccessories
LanguageEnglish

Summary

Chapter 1 Introduction

1.1 Comparison between CDMA2000 1x and 1xEV-DO

Compares CDMA2000 1x and 1xEV-DO technologies, detailing key differences.

1.2 Huawei CDMA2000 1x / 1xEV-DO Hybrid Network Solution

Introduces the hybrid network architecture comprising Base Station Subsystem/Access Network (BSS/AN) and Core Network (CN).

1.3 Position of BTS3606A

Details the BTS3606A's role and placement within the network and its application context.

Chapter 2 Product Features

2.1 Technical Features

Lists the key technical capabilities and specifications of the BTS3606A equipment.

2.2 Large-scale Coverage

Discusses the BTS3606A's capabilities for wide area coverage, including receiver sensitivity and transmit power.

2.3 Flexible Networking Mode

Explains various networking interfaces, modes, and clock sources supported by the BTS.

2.4 Convenient Operation and Maintenance

Details system monitoring, data configuration, alarm processing, and security management functions.

2.5 Powerful Environment Adaptability

Covers protection against environmental factors, wide operating temperature range, and robust power distribution.

2.6 Easy Upgrade and Expansion

Describes the compatibility design, flexible configuration, and smooth expansion capabilities of the BTS.

2.7 Serial Products for Seamless Coverage

Lists related BTS products that enable seamless coverage across different urban, suburban, and rural areas.

Chapter 3 Product Architecture

3.1 Cabinet Physical Features

Details the physical design, dimensions, and characteristics of the BTS3606A cabinet.

3.2 Cabinet Configuration

Illustrates the internal layout and component placement within the BTS3606A cabinet.

3.3 System Structure

Outlines the main subsystems: baseband, Radio Frequency (RF), power supply, and antenna.

3.4 Physical Interface

Lists and describes the various physical interfaces of the BTS3606A for connectivity.

Chapter 4 Main Functions

4.1 Power Control and Rate Control

Explains how power and rate control mechanisms are implemented for system capacity and service quality.

4.2 Handoff

Details the different types of handoff (soft, softer, virtual soft, hard) for maintaining ongoing conversations.

4.3 Radio Configuration

Describes the radio configurations (RCs) and transmission combinations supported by the BTS.

4.4 Channel Configuration

Classifies and explains the forward and reverse channels for CDMA2000 1x and 1xEV-DO.

4.5 Multi-carrier

Explains the support for multi-carrier technology to increase system capacity.

4.6 Receiving Diversity

Details the function of receiving diversity for enhancing signal reception and quality.

4.7 Cell Breathing

Describes the cell breathing function for adjusting coverage area and balancing system load.

Chapter 5 Reliability Design

5.1 System Reliability

Covers de-rating, component selection, thermal, and EMC design aspects for overall system reliability.

5.2 Hardware Reliability

Details hardware reliability aspects including redundancy, input voltage protection, and fault monitoring.

5.3 Software Reliability

Explains software reliability measures like resource checks, process monitoring, data integrity, and fault isolation.

Chapter 6 Operation and Maintenance System

6.1 Structure of the Operation and Maintenance System

Describes the local and remote maintenance systems, including the Local Maintenance Terminal (LMT) and M2000.

6.2 Operation and Maintenance Function

Covers security management, alarm management, loading, configuration, and equipment management functions.

Chapter 7 Technical Specifications

7.1 Structure and Environment Specifications

Lists cabinet dimensions, weight, power consumption, and ambient environmental specifications.

7.2 Capacity Specifications

Details the maximum sector carrier capacity and subscriber capacity of the BTS.

7.3 Transmitter and Receiver Specifications

Provides detailed transmitter and receiver specifications across different frequency bands (450 MHz, 800 MHz, 1900 MHz).

7.4 Specifications for ODU3601C Cascading

Outlines specifications for connecting and cascading ODU3601C units for expanded coverage.

Chapter 8 Technical Standards

8.1 General Technical Specifications

Lists general technical specifications and standards compliance for the BTS3606A.

8.2 Um Interface

Details Um interface specifications, including physical layer and MAC layer standards.

8.3 Abis Interface

Lists Abis interface specifications, covering physical layer and protocol standards.

8.4 Lightning Protection

Covers compliance with lightning protection standards for equipment safety and surge protection.

8.5 Safety

Lists safety requirements and standards for information technology and electronic equipment operation.

8.6 EMC

Details electromagnetic compatibility (EMC) standards compliance for minimizing interference.

8.7 Environment

Lists environmental requirements and standards for equipment operation, storage, and transportation.

Chapter 9 Abbreviations and Acronyms

9.1 Abbreviations and Acronyms

Provides definitions for abbreviations and acronyms used throughout the technical manual.

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