HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Huawei Confidential

Security Level:

Scenario to handle EUL Traffic in various network behaviors

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Objective

This document explains how to handle and monitor

the EUL traffic in two case of network behaviors : Optimal scenario Event scenario

Page 2

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Optimal Scenario In optimal scenario, to keep the EUL traffic in safe

level for the site, we need to decide

eulmaxrotcoverage parameter value. This parameter basically define the ‘difference

between maximum value of ULRSSI value of site has

reached’ and ‘noise level’. To obtain this value, we can fetch the average of

peak ULRSSI values of 4-5 consecutive days for

site. This value give us an idea regarding; what ULRSSI

value site can reach daily. When we take the difference of this value and

noise floor which is -104 we can obtain safe

eulmaxrotcoverage value for the site.Page 3

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Optimize Scenario Recommended parameter valus

eulmaxrotcoverage

sf4AdmUl

sf8AdmUl

featureStateEul2msTtifeat

Equal to difference of

‘average of peak ULRSSI value’ and ‘noise floor(-104)’

4 or 0 8, 6 or 4 ON

Page 4

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Event Scenario We define the event scenario as some special event

areas and some areas getting crowded certain

times in a period (like malls or market areas) The eulmaxrotcoverage parameter calculation is

same but to be in safe mode we need to put 5dB

threshold to that value. Also we have to make sf4AdmUl 0 and sf8AdmUl 2

or 0 to reduce the SF usage by high level R99 users

so we will be having SF available for the EUL users.

Page 5

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Event Scenario Recommended parameter valus

eulmaxrotcoverage

sf4AdmUl sf8AdmUl

featureStateEul2msTtifeat

Equal to 5dB + difference of

‘average of peak ULRSSI value’ and ‘noise floor(-104)’

0 2 or 0 OFF

Page 6

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 7

Incre

asin

g Tra

ffic

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Monitoring

To monitor Eul , we need to monitor: CSSR HSUPA pmNoSchEdchEul

To see the total number of simultaneous scheduled E-DCH users

having a rate > 0 kbits/s.

pmNoAllowedEul To see the number of times that no E-DCH traffic is allowed owing

to uplink interferenc (number of times rot coverage reach the

allowed value by eulmaxrotcoeverage)

pmNoEulDchBalancing To see the traffic balancing between DCH and EUL

Page 8

Thank youwww.huawei.com