zgo-03!05!007 egprs activation per cell fg 20101030

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ZGO-03-05-007 EGPRS Activation Per Cell

Feature Guide


ZTE Confidential Proprietary © 2010 ZTE CORPORATION. All rights reserved. I


Version Date Author Approved By Remarks

V1.00 2010-10-30 Not open to the Third Party

© 2010 ZTE Corporation. All rights reserved.

ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE.

Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.


ZTE Confidential Proprietary © 2010 ZTE CORPORATION. All rights reserved. II

TABLE OF CONTENTS

1 Feature Property ............................................................................................. 1

2 Overview ......................................................................................................... 1

2.1 Feature Introduction .......................................................................................... 1

2.2 Correlation with Other Features ........................................................................ 2

3 Technical Description .................................................................................... 2

4 Parameters and Configurations ..................................................................... 2

4.1 Parameter List .................................................................................................. 2

4.2 Parameter Configurations ................................................................................. 3

5 Related Counters and Alarms ........................................................................ 4

5.1 Related Counters .............................................................................................. 4

5.2 Related Alarms ................................................................................................. 4

6 Engineering Guide .......................................................................................... 4

6.1 Application Scenario ......................................................................................... 4

6.2 Configuration Description.................................................................................. 4

6.3 Network Impacts ............................................................................................... 4

7 Abbreviation .................................................................................................... 5

8 Reference Document ...................................................................................... 5


ZTE Confidential Proprietary © 2010 ZTE CORPORATION. All rights reserved. III

FIGURES

Figure 4-1 Window for EGPRS Activation per Cell ............................................................... 3

TABLES

Table 4-1 Parameter List ...................................................................................................... 2


ZTE Confidential Proprietary © 2010 ZTE CORPORATION. All rights reserved. 1

1 Feature Property

iBSC version: [iBSC V6.20]

BTS version: [unrelated to BTS hardware platform]

Attribute: [Optional function]

NEs involved:

NE name Involved or not Special requirement

MS √

BTS √

BSC √

MSC -

MGW -

SGSN -

GGSN -

HLR -

Dependent function: [None]

Mutual exclusion: [None]

Note: [None]

2 Overview

2.1 Feature Introduction

Every cell under the management of ZXG10 BSS can acquire the authority to activate the

Enhanced Data rates for GSM Evolution (EDGE) service through configuration. Flexible

configuration mechanism enables operators to determine whether to activate EDGE or

retain existing functions based on user demands in every cell.



This cell-based configuration properly utilizes resources and efficiently lowers costs.

2.2 Correlation with Other Features

None.

3 Technical Description

Enhanced General Packet Radio Service (EGPRS) adopts an 8-PSK modulation mode,

which enhances data throughput capability and delivers faster transmission rates for

users.

ZTE BSS is already EGPRS-capable in terms of hardware. It also supports flexible

setting of EGPRS in terms of software. The activation of EGPRS is cell-based, that is, if a

cell is set to “Support EDGE”, all users in this cell can initiate EGPRS. ZTE BSS allocates

radio and ABIS resources based on user requests and cell configurations to support the

high rate data service.

Therefore, operators can activate or deactivate the EGPRS function based on their actual

needs. This realizes more flexible configuration and more appropriate resource

utilization.

4 Parameters and Configurations

4.1 Parameter List

Table 4-1 Parameter List

Full name GPRS service supported

Abbreviation PsSurpport

Description Determine if the cell supports GPRS.



Management

Object Cell

Value Range Don't support GPRS, Support GPRS, Support EDGE

Unit None

Default Don’t support GPRS

4.2 Parameter Configurations

Log in to the configuration management interface.

In the configuration resource tree window, select [OMC → GERAN Subnetwork →

BSC Managed Element → Config Set → BSC Function → BTS Config → BTS ID],

and double-click [Cell ID]. In the displayed [Cell] window, select the [Basic Parameter 1]

tab and set “Support GPRS” to “Support EDGE” to activate the EDGE of the cell, as

shown in Figure 4-1.

Figure 4-1 Window for EGPRS Activation per Cell



5 Related Counters and Alarms

5.1 Related Counters

There are no counters for this function.

5.2 Related Alarms

There are no relevant alarms for this function.

6 Engineering Guide

6.1 Application Scenario

This function is applicable to the places where the activation of EDGE service is required.

6.2 Configuration Description

The precondition for activating this function is that the Gb interface of iBSC is normally

activated.

This function requires the BTS carriers to support EDGE (At present, some old carriers of

V2 BTS do not support EDGE).

6.3 Network Impacts

Impacts on network

The EDGE imposes strict requirements for radio environment and system capacity. The

rate of MCS4 is lower than that of CS4, so forced activation of EDGE may achieve

negative effects. If the current network cannot support EDGE activation in all cells, you



may activate EDGE in some cells to make full use of resources without any impact on

network.

Impacts on NEs

This function has no direct effect on NEs, but after activation of EDGE, more resources

are needed, including PDCHs, ABIS links and PCU modules. In addition, you need to

check whether the original radio environment can meet the new coding requirements.

7 Abbreviation Abbreviations Full Characteristics

ARQ Automatic Repeat Request

BSC Base Station Controller

BTS Base Transceiver Station

EDGE Enhanced Data rates for Global Evolution

GERAN Gsm/Edge Radio Access Network

GSM Global System for Mobile communications

LLC Logical Link Control

MAC Medium Access Control

MS Mobile Station

MSC Mobile Switching Centre

OMC Operation & Maintenance Center

PS Packet Switched

QoS Quality of Service

RLC Radio Link Control

SGSN Serving GPRS Support Node

TBF Temporary Block Flow

8 Reference Document

[None]

zgo-03!05!007 egprs activation per cell fg 20101030

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