aco & pco ion procedure

8/6/2019 ACO & PCO ion Procedure

1/14

OPTIMISATION PROCEDURE FOR ACO & PCO


2/14

ACCESS CHANNEL OCCUPANCY


3/14

Quick Reference Guide for ACO

Reference Reports:

Lucent:- ACO-PCO Summary-Flux / RFISS

Did the sectors

ACO exceed

the threshold in

last months

TOP6 ACO

report?

ACO Thresholds:

Lucent ACO Th = 20%

Yes

It could be due to

special event

or unplanned event,

Keep an eye on occupancy

No

Ensure

Correct Datafill for

all ACH

related Parameters

Process B (Capacity Balancing)

Are the Zone

base

Registrations

High?

Process C ( Zone Base Registration Issue)Yes

Optimization

Yes

Escalate Issue to next level of Support

Prior to R21, Introduce new carrier

With R21, activate new access channel


4/14

ACH Recommended Parameter Settings and OMs

Rel28_AccParameters

Rel28_ACP_PCO


5/14

NoPhysical

optimization

to control

energy

Yes

Is the

RF energy

overshooting

across the

Zone border?

Process C Zone based

Registration Issues

Are the Zone

settings correct andzones balanced?

No C2 Fix data errors,

Modify LAs usingZone boundary tool.

Yes

C1

Monitor

Stats

ACO

Resolved?

Yes

Done

No

Monitor

StatsACO

Resolved? Done

C4

Optimization

Modify tot_zones and

Zone timer (Cell2)

C3Yes Is the

RF Energy still

overshooting?

C5

Monitor

Stats

Does the

traffic distribution

along the border4 allow

for a zone change?

C8

C6

Yes

ACO

Resolved?

Yes

No

No

Move site tonext zone,

Modify LA.

C7

Monitor

Stats

ACO

Resolved?

Done

Yes

No

Add access channel.

Monitor ACO of all access

Channels (cpcarr 247-250)

C9

Yes

No

No

Process C

Zone BasedRegistrationIssues


6/14

Process B

Do all carriers have

same footprint and

sectors loadbalanced within

15%?

Process B - Capacity

Balancing

Are the carriers

balanced within 15%of the average carrier

load?

No

Modify TCA weights, NL,

and IFHO settings

Yes

Conduct Antenna and

Power audits & matchthe footprints and load.

No

Monitor

Stats

ACO Resolved?

Yes

Done

No

Monitor

Stats

ACO Resolved?

Yes

Done

Optimization

Check the next step i.e.Zone Based Registration

No

Yes

CapacityBalancing


7/14

PAGING CHANNEL OCCUPANCY


8/14

Quick Reference Guide for PCO Lucent

Reference Reports:

Lucent- Monthly Top 6 PCO Report-Falcon /

31 day trending report / RFSM

Prospect

Did the sectors

PCO exceed

the threshold in

last months

TOP6 PCO

report?

PCO Thresholds:

Lucent PCO Threshold = 72%

Yes

(Carrier Balancing) essentially a

common carrier sanity check to

ensure that the PCO is equally

distributed among all reasonable

carriers on the sector

PCO

Resolved

?

No

It could be due to

special event

or unplanned event,

Keep an eye on occupancy

No

Ensure Correct

Data fill for all PCO

impacting

Parameters including

Paging Channel

Overload Controls

Verify if SHAPCAR is enabled in the

switch. Implement sub-MSC paging.

Zone Based Paging & Multiple Paging Channel Analysis

Process A

Yes

Activate 2nd

paging

Channels &

Monitor PCO

Pg. Succ.

improved?

Yes

No

DONE

A

DONE

Add 2nd Pg.

Ch to All sites

In LA/switch/

Adj. SW.?

Add 2nd Carrier

to LA. Optimize LA.


9/14

PCH Recommended Parameter Settings and OMs

Attached is the list of all Paging Channel related parameters and the PSP

recommended Standardized settings. The second spreadsheet lists OMs as

of Release 29.

Please verify that each of these parameters are set correctly and ensure

all Fax flashes to optimize the PCH related parameters have been

implemented.

A ccCh_ PgCh_Par ms Rel28_A CP_P CO


10/14

Process A

Process A

Implement Sub-MSC paging.

Implement ISPAGE2, as needed. Do

Not Degrade Pg. Success Rate.

Is the ACO on

the zone border

sites < 20% ?

Yes

No

Implement the ACO Resolution Process

Reference Reports:

Page Success Reports:

(i) RFISS Excel Stats Data retrieval

Generic Report.

(ii) Flux

(III) RFSM

Page Channel Occupancy Reports:

(i)RFISS

(ii) Flux

(iii) RFSM

PCO

Resolved ?

Optimize Borders. Optimize LA sizes.

Optimize paging strategy. Do not

degrade Pg. Success rate.

PCO

Resolved ?

Implement CLAC paging. Add access

channels as needed. Do not degrade

Pg. Success Rate.

PCO

Resolved ?DONE

DONE

DONE

Add 2nd Pg. channel. Optimize zones

and paging strategy. Monitor stats

(cpcarr 240-246).

No

No

Enough

Power for 2nd

Pg. Ch.?

Add Carrier/s.

Pg. Success

Degraded?DONE

No

No

No

No

A

Yes

Yes

Yes


11/14

Second Paging Channel This feature introduces the ability to support up to 2 Paging

Channels per carrier-sector. Each Paging Channel can accommodate up to six

additional access channels Changing the number of Paging Channels is recommended

to be performed during the maintenancewindow only.

MOP:

note: Deployment of this feature must be closely analyzed

and monitored due to potential loss of capacity due

to limited forward power availability.

2nd_PgCh_MOP


12/14

Second Paging Channel: BTSEQP Form View


13/14

ACCESS FAILURE REASONS


14/14

THANK YOU

aco & pco ion procedure

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