huawei rnp work flow 200403

Radio Network Planning and

Optimization Work Flow

Huawei Technologies Co., Ltd.April 9, 2023

Confidential Information of Huawei. No Spreading without Permission

Huawei RNP Work Flow

Abstract: RNP is a significant job serving to the whole project flow. All the RNP members,

especially the RNP team leader should consider all the aspects of the network and provide

the idea and suggestion during the RF manager’s decision making. At the beginning of

planning or launching, strategy and schedule should be considered and detail discussions

are held with the customer so that the work done can meet the customer expectation.

Teamwork is a way to complete the RNP related work. The team members should understand

and know their roles during the work. All the work can be done based on the working flow

and corresponding templates provided. It is suggested to make use of the provided

template and make some changes accordingly.

HUAWEI RNP WORK FLOW is issued in order to standardize and make the RNP work

smoother. In addition, the RNP flow can give a general idea to the new joint engineer and

improve the team operation flow.

HUAWEI RNP WORK FLOW consists of slides and the corresponding description. It

includes the following processes.

Main Process Sub Process

Pre-Planning Network Pre-Planning

Network Planning

RF Survey

Planning Concept

Practical Planning

Cutover / Launch Cutover / Launch

Optimization

DT Optimization

KPI Optimization

Networking Monitoring

Technical Support

Acceptance Network Acceptance

4/9/2023 Confidential Information of Huawei. No Spreading without Permission

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0. Overall Process

From pre-planning to network acceptance, radio network planning and optimization process includes 5

parts. Planning process includes RF Survey, Planning Concept and Practical Planning; while

optimization process includes Drive Test optimization, KPI optimization, Network Monitoring and

Technical Support.


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1. Pre-Planning

Requirement Analysis

RF engineer analyzes the requirement from the customers. The task could be dimensioning and

simulation, current network evaluation or electromagnetic background measurement.

Network Dimensioning

Network dimensioning is the most general activity in pre-planning phase. Network dimension could be

designed by 3 ways. It may come directly from the customer, or from the designing on map. When

there is current network available, the current network analysis or new site survey will possibly be

committed.

Simulation

Simulation with some planning tools is very helpful for the network dimensioning. It provides a way to

check the accuracy of the planning. During the simulation, the propagation model has to be chosen. It

may be chosen by adopting the model of similar terrain that we have, or getting from model tuning

(CW test).

Network Evaluation

Evaluate the whole network performance. For the wireless part, the evaluation is normally made by

drive test and KPI analysis.


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Electromagnetic Background Test

In order to avoid the possible interference after network implementation, electromagnetic background

test is committed to make sure the frequency source is clear and usable.

Pre-planning Report

Combine all the activities done to a report, and get approval from customers.


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2. Network Planning

Following pre-planning, network planning phase includes three main activities, such as RF Survey,

Planning Concept, and Practical Planning.


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2.1. RF Survey

RF Survey Discussion

The customer will pass the job request to the team leader OR Huawei will propose the site survey plan

to customer. The job requests have to be issued by the customer 2-3 days before the actual site survey

date. The content have to include the site name, coordinate, coordinate projection type and time plan to

finish all the site survey. The team leader have to consider also the method that the customer want the

site survey to be perform since some of the site survey will be done together with the site acquisition

that will slow down the whole site survey progress. In addition, the customer may like to send some

engineers to join the site survey

RF Survey Preparation

The template of RF Survey Preparation Check List can be used to perform the site survey and

customization is performed when required. The engineer has to make sure that the Site Survey Kit is

ready with digital camera, GPS and compass before the site survey is started. The digital map has to be

ready so that the site survey can be performed smoother and easier. The site survey schedule can be

completed with the help of team leader and then obtain the approval from the team leader.

RF Survey

The RF survey is performed in this stage either with engineer from customer or done by Huawei

engineer. For more detailed about the site survey method, please refer to the RF Survey Guideline

document. The information obtained from the site survey is filled into the On-Site RF Survey Report

(XXX Site).

RF Survey Report


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After finished the site survey, RF engineer should fill the information obtained from the site survey into

the RF Survey Report which is perhaps detailed as possible as we can including the photos around the

site location etc, under the request from customer. And after finished all sites survey, RF engineer will

fill the site information into the RF Survey Summary.

Engineering parameter

Through the site survey, RF Engineer obtains the information of each site, so the Site Database needs

to be refreshed exactly. It’s very important to be refreshed uniquely and real time for it is used through

the whole project (including optimization).


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2.2. Network Planning Concept

Cell Name/Cell ID

The cell naming method, Cell ID, CGI and NCC are obtained from the customer. The customer may provide the

cell naming method or the engineer may propose the cell naming method to the customer and get the approval

from the customer.

Frequency/PN Planning

The team leader is responsible to obtain the information includes the total spectrum available, starting and ending

of the ARFCN from the customer. Then, the team leader is responsible to determine the frequency reuse pattern

and the frequency hopping method that going to implemented in the project. This may include the total number of

channels dedicated for BCCH and total number of channels for TCH. In addition, the TCH reuse pattern such as

1X3 or 1X1 reuse pattern is also determined in this stage. The team leader may call for meeting to discuss this

issue internally to find out the most suitable frequency plan that suit the frequency available and then send the final

frequency plan for customer approval. For CDMA and WCDMA planning, there is a general guideline for the

PN/SN planning.

Coverage/Capacity Highlights

In some projects that have high coverage requirements, the site designs have to be determined to ensure the

customer satisfaction. In this stage, the team leader has to get the proper input either from customer or marketing

department. The consideration may include the implementation of dual CDU solution, type of combiner used, type

of high gain antenna and type of feeder used.

This consideration is mainly for dual band network. The engineers have to consider how to absorb and control the

dual-band network traffic. The parameters such as the value of CRO, type of HO ( Layer HO or PBGT HO ), HO

thresholds, other vendors parameters studies and proposal to change other vendor parameters have to be considered

so that the traffic can be distributed more evenly.


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Parameter Planning Consideration

In this stage, the default parameters such as the types of handover that are going to be activated, CRO setting for

traffic sharing, various types of thresholds, for more detailed about the parameters using, please refer to the RNP

Default Parameter setting, (including Dual-band parameter setting) document, have to be determined and then

sent to customer for notification and approval. The default parameters in this stage are not meant to generate the

complete BSC data but more towards letting the customer knows the general picture of the whole network.

All the issues above are combined and a formal report Network Planning Concept has to be delivered to

customer when the design concept is finalized. This planning concept will be used both for Huawei engineer and

the customer to communicate with regional teams if there are. This process also ensures the customer knows well

the planning concept and make the near future work can be performed smoother.

RNP Acceptance Criteria and Method

In this stage, the KPI definition and KPI target have to be set with the input from customer due to different way of

defining the measurement parameters. Huawei engineer may propose the measurement method if there are no

specified requirements given by the customer. And then outputs the RNO Acceptance Criteria document. But the

KPI targets have to be discussed carefully due to the KPI targets are affecting the future workload. The RNO

Acceptance Criteria document is sent to customer for approval when it is finalized with the co-operation from

Huawei marketing.

Practical Planning

The team leader distributes the planning work to RNP engineer. The engineer does the practical

planning such as Frequency/PN planning, Neighbor planning with the Network Planning Concept.


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2.3. Practical Planning

The planning concepts are obtained from the previous stage and will be the conceptual input in this stage.

Frequency/PN and NBR Planning

After the required manpower is obtained, the work is distributed to the engineers to finish the frequency and NBR

planning. The inputs such as

- Sites coordinate and the azimuths can be obtained from the site survey

- Available spectrum and ARFCN, planning concept, hopping method and digital maps can be obtain

based on the input from the site survey stage.

After all the designs are done, tools to check on the single way neighbor, co-channel and adjacent channel is used

to verify the work results produced. The changes are made accordingly and recorded in the Planning Evaluation

Record. This document will be the proof for the verification work done and will sent to Headquarter for recording

purpose.

Proposal Approval

The approvals, Network Planning Proposal and RNP proposal Approval Report, have to be obtained from the

team leader and the team leader is responsible to send the work to customer for approval.

At this stage, the complete cells parameters and cells properties are configured and filled into the RNP Data

Configuration Table. The cells parameters such as HO type, thresholds, frequencies, neighbors and other

parameters are obtained from the documents that planned internally and approved by the customer. The RNP Cell

Data Configuration will be use to generate the database for all the cells that are going to put on service.

After the data is verified, the data that in the RNP Data Configuration Table is sent to the Data Configuration

Center to generate the BSC data (Database) for the network. And after generating the DBF, the Data Configuration

Center will send it to the local RNO engineer and the local BSS engineer.


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ON-Site Check

According to the RNP Default Parameter setting (possibly including Dual-Band parameter setting) document,

the BSC data has to be checked and changes have to be made accordingly due to some default values are different

with what required when generating the BSC data. It is STRONGLY recommended to check all the data again by

RNO and BSS Engineer after all the changes else there maybe problems when doing the optimization that causes

by data configuration.


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3. Cutover / Launch

Site Installation

In this stage, BSS engineer is responsibility for the quality of the site installation. It will affect the network running

quality. The customer should prepare the conditions of site installation before installed.

Site Commissioning

After the sites installed and running, the BSS engineer must do the commissioning test one by one basing on the

BTS Commissioning Test Checklist (for RNO). During the test, the BSS engineer must pay attention to the

installed quality of BTS hardware, antenna and so on. If there is something wrong in it, it should be corrected and

adjusted fast.

Installation Adjustment

If there is something wrong in installation, it must be adjusted at once.

Hardware Adjustment

If there is something wrong in Hardware, it must be changed or adjusted at once

Antenna Adjustment

If there is something wrong in Antenna installation, it must be adjusted at once.

Cutover / Launch

In this stage, the team leader is responsible for determining the launch plan with the PM and customer. It is

suggested to launch the sites per batch basis. The customer input at this time is important also. The site launch on

batch basis will reduce the number of times for cutover and this can make all other RNP work can be managed


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better. At the same time, the team leader has to make sure that the launch schedule is determined by the RF team

leader but not PM only. ALL (RF Team Leader, PM and Customer) parties have to discuss and determine the

launch plan. After this, the cells that launch in this batch are unbarred and the sites are considered on service. Also,

it’s very important for the BSS engineer to do the test one by one basing on the BTS Commissioning Test

Checklist (for RNO) to prove that the site running status is good. At the other side, the traffic statistic is checked

per hour basis for about 2 to 3 hours to verify the successful of the launch process. After that, a short discussion

will be called with customer to conclude whether the launch is success or not.

Monitoring

The on-site BSS/RNP engineer will take the monitor after the successful Cut-over Launch. For example, the daily

traffic statistic report is sent to the customer to show the overall network performance and quality and the drive test

to verify the coverage areas will base on the customer requirements. If there is something wrong in the network,

the Daily Performance Monitoring report will be sent to the team leader and the customer.


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4. Network Optimization

Cutover/Launch (BSC Cutover or Site Launch)

During implementation period, Huawei will begin optimization only when a certain number of continuous sites are

put on service (for example, 90% of the continuous sites are put on service). For the specified optimization project

where there is no site launch at all, the first step is to collect and check site database (engineering parameter table).

DT Optimization / KPI Optimization

DT optimization and KPI optimization are committed at the same time. According to the plan of project, self-

check should be involved to make clear whether the network quality achieve acceptance criterion after X weeks’

optimization. If acceptance criterion has been achieved and the acceptance time has not arrived, the project moves

to Network Monitoring process. Otherwise, analyze the failure reason. If it is because of network optimization,

enhance the optimization devotion. If it is because of other reasons, transfer the problem to local or remote

Technical Support until the criteria are met, or just present the explanation. In the end, the RPO project moves

into network acceptance process.

Network Monitoring / Technical Support

If acceptance can not be done according to the plan because of the reasons other than network optimization, it is

necessary to co-ordinate project team, local office and company support team to stress on tracking and settling the

network problem. So the support what we said here includes optimization team, R&D team and marketing team,

not only optimization technical support team.

Network Acceptance

According to network acceptance criterion and method, confirm the optimization result with customers.


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3.1 DT optimization

DT Preparation

Before DT optimization, the engineer is required to work out the drive test plan such as test purpose, which route

to go, test method, duration to finish the plan, test car, test equipment and etc. DT Preparation Checklist is

helpful to do self-check.

Drive Test

Either the engineer or the sub-contractor performs the drive test. The obtained result will be analysis by the

engineer and 2 reports (Drive Test Analysis Report and Drive Test Report) are generated and sent to team leader

for approval. The appropriate reasons have to given if the continuous 10 samples collected have low signal or bad

quality. The team leader then passes the report to the customer for approval and in the same time show the new

launch network performance to the customer. Please refer to the Optimization and FAT Test Standard for more

information about the Drive Test method. The drive test analysis can be done based on the urgency of the network

situation. If a lot of problems found during drive test, the data have to be sent back ASAP and then correct the

problems accordingly.

DT Data Analysis

When analyzing the drive test data, we have to record the time, position, phenomenon where there is network

problem, specify the reasons and propose possible solutions. DT Data analysis table is applied to every time of

drive test. After DT analysis, estimate whether the result can meet the target requirement. If the result meets the

target, confirm the work with team leader.

Result confirmation

Finish the DT optimization according to DT Data analysis table and DT optimization Bi-weekly report.


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Antenna / Parameter / Configuration adjustment

After drive test, such solutions as antenna adjustment, parameter adjustment or configuration adjustment may be

applied. In order to compare the performance before and after adjustment, engineering parameter table and

engineering parameter table are used.

After all the adjustment, drive test again, resume the circular process of DT optimization until satisfying the drive

test target.


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3.2 KPI optimization

Traffic Statistic Data

In optimization phase, obtain the traffic statistics from OMC every day. Normally the statistics is of previous day.

Network Monitoring

According to the statistics data, find out the abnormal site or cell, for example, no traffic, no handoff, call drop,

etc. The abnormal cell is normally caused by the hardware failure. All these cells are analyzed by the BSC/RNP

engineer and they will start the work to correct it then. The RF engineer also can initiate the BSC engineer to solve

the hardware related issues when some problems about the hardware are found in the system.

Problem analysis / Terms of Solution / Discussion / Solution Implement

During optimization, worst cells are listed out based on the KPI items, and they may be named as problem cell

here. The problem cells are analyzed and the proper changes are proposed to the customer. The proposal may

include how to solve current network problems such as add/relocate TRX, parameters changes and etc. The main

purpose is to improve the total performance of the network. All the more complex solution can also be documented

and sent to RNP support department. At the same time, the product suggestion can also be given to improve

network capability and the efficiency of the work.

After the problem cells proposal and the change request are ready, the discussion with customer is held and the

parameters changes are done after the meeting. It is suggested that the meeting should be held earlier so that the

parameters changes can be perform in the same date after the meeting with the customer. The second suggestion is

try to keep the records of the parameters changes so that the same parameters values won’t be performed again and

again.


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3.3 Network monitoring

Customer complaint / Traffic statistic data

During network monitoring phase, maintenance engineer is keen on customer complaints and traffic statistics.

Daily monitoring

According to the customer complaints and statistics data, find out the abnormal site or cell, for example, no

traffic, no handoff, call drop, etc. The abnormal cell is normally caused by the hardware failure. All these cells are

analyzed by the BSC/RNP engineer and they will start the work to correct it then.

Problem solving / Report

If there is some problem found during monitoring, on-site engineer solves the network problem. During this phase,

it is possible to ask for assistance from local office or headquarter.


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3.4 Technical support

Problem identification & description

When the on-site engineer ask for technical support from specific regions or headquarter, he may fill the Problem

Feedback Form and send to regional / headquarter technical supporter or upload the problem through Huawei

CRMS (Customer Request Management System), and the technical supporter will response those requests.

Regional technical support

There are several regional technical support platforms in AP, CIS, MENA, SA, etc. When the technical support

experts there get the support request, they will deal with problem directly or through CRMS system, and try to

solve the problem with on-site engineer finally.

Technical support of HQ

If some problems can’t be solved at regional technical support platform, they will flow to headquarter technical

support center. Then the technical support experts there will continue to deal with them. Headquarter technical

support team includes experts from R&D, BSS and RNP.

Solution implement / Result confirming

With the assistance from regional or headquarter technical support team, the on-site engineer discuss the solution

with customers and then implement it. If the problem has been solved, notify H&Q technical support to close the

problem. For typical problem or important problem, problem investigation report should be generated to

customers.


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4. Network Acceptance Process

In the process of Planning Concept, the KPI have been defined and agreed with the customer. The formal

document RNP Acceptance Criteria and Method has to be produced and signed both by the marketing

department and the project manager. This document normally is done after the contract is secured.

After the optimization for some time and all the KPI values have passed the target value as defined in the KPI

document, the FAT can be initiated and Network Optimization Report is prepared and sent to the customer to end

the project. The FAT criteria have to be considered in the report that may include the drive test result and the

breakdown of the KPI targets. Then the report is sent to the team leader for approval and then for customer

approval.

Complete optimization

After getting the approval of the optimization, all optimization items finish. Backup the BSC data in the network,

and pigeonhole all project documents to company server according to RNP Document Guideline.


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