OPTIMISATION PROCEDURE FOR ACO & PCO

ACCESS CHANNEL OCCUPANCY

Quick Reference Guide for ACO Did the sector’s ACO exceed the threshold in

Ensure Yes

Optimization

Process B (Capacity Balancing)

Correct Datafill for

last months

all ACH

TOP6 ACO

related Parameters

report? Are the Zone base ACO Thresholds:

Yes

Registrations

Lucent ACO Th = 20%

High?

Yes Prior to R21, Introduce new carrier With R21, activate new access channel

Reference Reports: Lucent:- ACO-PCO Summary-Flux / RFISS

Escalate Issue to next level of

No

It could be due to special event or unplanned event, Keep an eye on occupancy

Process C ( Zone Base Registration Issue)

ACH Recommended Parameter Settings and OM’s

Rel28_Acaramete rs

Rel28_A_PCO

Optimization

Process C

Process C – Zone based Registration Issues

Are the Zone C1 settings correct and zones balanced?

No

C2 Fix data errors, Modify LA’s using Zone boundary tool.

Monitor Stats

ACO Resolved?

Yes Done

No

Zone Based Registration Issues

Yes

Yes

Yes Is the RF energy C3 overshooting across the Zone border?

Yes

C4 Physical optimization to control energy

C5 Is the RF Energy still overshooting?

No Monitor Stats

ACO Resolved? No

No Yes Does the traffic distribution C6 along the border4 allow for a zone change?

C7 Move site to next zone, Modify LA.

Yes Monitor Stats

ACO ? Resolved

Done

No

No C8 Modify tot_zones and Zone timer (Cell2)

Monitor Stats

ACO Resolved? Yes Done

No

C9 Add access channel. Monitor ACO of all access Channels (carr 247-250)

Optimization

Process B - Capacity Balancing

Process B

Are the carriers balanced within 15% of the average carrier load?

Capacity Balancing

No

Yes

Yes

Do all carriers have same footprint and sectors load balanced within 15%?

Modify TCA weights, NL, and IFHO settings

Monitor Stats

Yes

No ACO Resolved?

Done

No Conduct Antenna and Power audits & match the footprints and load.

Check the next step i.e. Zone Based Registration

Monitor Stats

Yes

No ACO Resolved?

Done

PAGING CHANNEL OCCUPANCY

Quick Reference Guide for PCO – Lucent Did the sector’s PCO exceed the threshold in

(Carrier Balancing) – essentially a

if SHAPCAR is enabled in the Yes

Ensure Correct

ensure that the PCO is equally

Data fill for all PCO

last months

impacting

TOP6 PCO

Parameters including

report?

common carrier sanity check to

switch. Implement sub-MSC paging.

distributed among all reasonable carriers on the sector

Paging Channel Overload Controls

PCO Thresholds: Lucent PCO Threshold = 72%

Zone Based Paging & Multiple Paging Channel Analysis Reference Reports: PCO Resolved

Lucent- Monthly Top 6 PCO Report-Falcon / Yes

31 day trending report / RFSM Prospect

Add 2nd Pg. Ch to All sites In LA/switch/ Adj. SW.?

A

?

No No Add 2nd Carrier to LA. Optimize LA.

Activate 2nd paging It could be due to

Channels &

special event

Monitor PCO

DONE

or unplanned event, Keep an eye on occupancy

No Pg. Succ. improved?

Yes DONE

Process A

PCH Recommended Parameter Settings and OM’s

AccCh_PgCh_Parms

Rel28_A_PCO

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

recommended Standardized settings. The second spreadsheet lists OM’s as of Release 29.  Please that each of these parameters are set correctly and ensure all Fax flashes to optimize the PCH related parameters have been implemented.

Reference Reports:

Process A

Page Success Reports: (i) RFISS – Excel Stats Data retrieval – Generic Report.

PCO Resolved ?

Process A

DONE

(ii) Flux (III) RFSM

No

Page Channel Occupancy Reports: (i) RFISS

Implement Sub-MSC paging.

Implement CLAC paging. Add access

Implement ISPAGE2, as needed. Do

channels as needed. Do not degrade

Not Degrade Pg. Success Rate.

(ii) Flux (iii) RFSM

Pg. Success Rate. No

Yes PCO Resolved ?

PCO Resolved ?

DONE

DONE

No

No

Enough Power for 2nd Pg. Ch.?

Optimize Borders. Optimize LA sizes. Optimize paging strategy. Do not

No Add Carrier/s.

degrade Pg. Success rate. Yes Add 2nd Pg. channel. Optimize zones Is the ACO on the zone border

No

and paging strategy. Monitor stats (carr 240-246).

sites < 20% ?

Pg. Success Degraded?

Yes Implement the ACO Resolution Process

A

Yes

No DONE

Second Paging Channel This feature introduces the ability to 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 maintenance window only. 

 MOP: note:

2nd_PgCh_MOP

Deployment of this feature must be closely analyzed and monitored due to potential loss of capacity due to limited forward power availability.

Second Paging Channel: BTSEQP Form View

ACCESS FAILURE REASONS

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