Web Planning Tower Base Transceiver Station Collective Mobile Telecommunications in Merauke City Based On Geographic Information Systems Using Mapinfo For The Next 10 Years

. The purpose of this study is to develop a master plan for mapping joint cellular telecommunication BTS towers in accordance with the Regulation of the Minister of Communication and Information Number : 02/Per/M.Kominfo/03/2008 regarding the use of towers together. The method used to collect and process data and analyze the distribution zone using MapInfo software. The data collection was an existing BTS towers and population which calculating and find the need of towers in the future by calculating the number of residents, users, traffic, then processed to calculate the number of BTS and shared towers and through coverage the possible distribution zones of the towers described through MapInfo are determined. The results obtained are a master plan containing predictions of the need for BTS towers in 2029 as many as 43 BTS with each tower occupied by a maximum of 3 providers so as to minimize the occurrence of tower forests and an overview of the pattern regarding the distribution of shared towers using the MapInfo software.


Introduction
Telecommunications technology continues to develop due to its role in being able to reach long distances globally. This telecommunication really helps people to communicate with each other regardless of how far apart they are. The greater the needs of this community will increasingly encourage the development of telecommunications technology that occurs, which of course cannot be separated from the industry. The telecommunications industry, which is seen as the backbone of the modern digital world, is required to continuously make progress in the evolution of the telecommunications network system, because the network is the main key to technology in order to remain in touch with each other so that it is necessary to improve facilities that support the quality of the telecommunications network system, such as towers. telecommunication.
Telecommunications towers including BTS (Base Transceiver Station) are the main infrastructure for users to access the network [1].
The population (human) will continue to increase. This population rate has resulted in more and more cellular phone users or subscribers, thus increasing the density of telecommunication traffic. As a result, communication needs are also increasing which has an impact on increasing the need for telecommunication * Corresponding author:roberto@unmus.ac.id towers in Indonesia to support the quality of cellular networks, including in Merauke City. Based on the results of a survey conducted at the Communications and Information Technology Office, the existing Telecommunication BTS towers in Merauke City until 2019 reached 60 towers with 3 providers including Telkomsel, XL Axiata and Indosat Ooredoo. Each provider has a different number of BTS that have been spread across the city of Merauke. The 60 BTS towers belonging to various companies to the government serve 100,021 people spread over 123.11 km2 [2]. The distribution of this tower is carried out by reviewing user needs, so it must be remembered that the population rate will continue to increase so that new cellular telecommunications BTS towers will continue to be needed.
The construction of telecommunication towers needs to pay attention to several things including the availability of land, buildings and air space. In the Regulation of the Minister of Communication and Information Number: 02/Per/M.Kominfo/03/2008 concerning Guidelines for the Development and Use of Shared Telecommunication Towers, it has been explained that the obligation to use towers together with due regard to the continuous growth of the telecommunications industry so that the cellular telecommunication BTS towers that are built must comply with the stipulated requirements in order to avoid the occurrence of telecommunication tower forests, as well as to minimize the potential for security conflicts in the community. In addition, it is also necessary to pay attention to public health and environmental aesthetics, due to long-term telecommunications towers [3]. Based on the problems above, it is also seen that the condition of the cellular telecommunications BTS towers in Merauke City which are still being built are separated between providers. Meanwhile, on the other hand, it can also minimize the negative impacts that will disturb the community. GSM technology is a technology that is widely applied in mobile communications, one of which is mobile phones. This technology is digital. GSM technology works by utilizing microwaves and the process of sending this technology is divided by time [4]. GSM architecture in general can be seen in Figure 1. Because without a SIM, MS can only be used on emergency traffic lines. b) Base Station subsystem (BSs) which has the function of being in charge of each connected BTS radio so that it controls the work of the BTS and handles call handovers between cells controlled by the BSC. In addition to the BSC, there is also a Base Transceiver Station (BTS) which functions to handle the interface or direct connection with the MS and also functions as a signal sender and receiver. c) Network and Switching subsystem that functions as a call process controller and is responsible for the functions of components related to customers. This stage consists of MSC (Mobile Switching Controller), HLR (Home Location Register), and VLR (Visitor Location Register). MSC is the core of the GSM network that functions as network interconnection. HLR serves as a permanent database for all data from customers. For VLR, it functions as a temporary customer information database. In addition, there is also an AuC (Authentication Center (AuC) which functions to confirm the user's identity and keeps call secrets and EIR (Equipment Identity Register) which functions as an MS database. d) Network Management subsystem, namely the Operation and Support System is a subsystem of the GSM network that functions as a control center including fault management, configuration management, and inventory management [5].

Telecommunications Tower
Shared telecommunication tower is a term for the provisions of regulations for the construction of towers and the joint use of telecommunication towers based on government regulations. With this, the government intends to minimize as well as make the best use of the land space for the construction of the tower. Even so, this must also take into account the stability of the growth of the telecommunications industry. Based on the place of establishment, towers include two types, namely towers built on the ground (green field) and towers built on top of buildings (roof top) [3]. Meanwhile, based on its structure, the telecommunication BTS tower is divided into 3, namely [4].

Calculation Data in Supporting Needs
Geographical Information System or often referred to as Geospatial Information System is an information system used to compile, store, revise and analyze data and attributes that refer to the location or position of objects E3S Web of Conferences 328, 0 (2021) ICST 2021 on earth [7]. This means that data or information that refers to the location or position of objects on earth is termed spatial data or information, while attributes describe the characteristics of the spatial data. More specifically, the components of spatial data include geographic position / location, attribute data, spatial relationships and time.
The calculation support is divided into several categories, which can be explained as follows:

a) Traffic Capacity
The amount of traffic is measured in units of time where the value of the traffic of the channel is obtained from the length of time it has been occupied by the channel. One of the purposes of the traffic calculation is to determine the network performance and the quality of service of the telecommunications network, The traffic capacity can be calculated by the call average [8]: And the traffic volume can be determined by: So that the traffic intensity is obtained by: Where,

B = Number of BTS needs T = Total traffic of all cellular subscribers (Erlang) A = Capacity of one BTS (Erlang)
The number of tower requirements can be obtained by the formula as following:

d) Number of Mobile Users
P=x % xPt (9) Where: P = Cellular teledensity x = Percentage of mobile phone users e) MapsInfo MapInfo is a Geographic Information System (GIS)based software that has a function for managing maps in the form of spatial data or in the form of excel data, based data and the like with a user friendly display that makes it easy for users. Software has the ability to combine and display a single map with data from various sources, formats, and projections [6].

Methods
There are several stages of research procedures carried out in this study, namely research data collection methods, Data Processing Methods and Modeling Methods for Telecommunication BTS Tower Structure Design.
The research data collection method consists of: 1. Study of literature 2. Observation 3. Secondary data collection.
Then the following stages apply data processing methods which include:

System Analysis
System analysis is divided into two categories, namely the current system and the proposed system. In a running system, this process can describe the work system that is currently being implemented by the company to build towers. The following is a running system analysis of the tower construction process.

Prediction of Population Growth
This population prediction is to estimate the population in 2029. The following is an example of calculating growth predictions in Rimba Jaya Village:  Muli** - Kamahedoga** -----Total / ̅ 88.755 102.040 10 1.43 115.363 *) The total population in the kelurahan is still the combined population data before the division. **) Villages resulting from the division of the Rimba Jaya village. So that the population data and the results of calculations in these kelurahan are still counted in the kelurahan before the division.

a) Predict the Number of Cell Phone Users
With cellular teledensity in Merauke city of 66.19%, the number of cellular phone users can be calculated using the formula with the example in Rimba Jaya Village as follows: Muli** --10 Kamundu** --11 Kamahedoga** --Total 115.362 76.358 *) The total population in the kelurahan is still the combined population data before the division. **) Villages resulting from the division of the Rimba Jaya village. So that the population data and the results of calculations in these kelurahan are still counted in the kelurahan before the division.

b) Existing Tower Condition
From the calculation of the predicted population in 2029 and the number of cellular phone users in 2029, the need for telecommunication towers can be obtained by calculating and mapping the traffic capacity of existing towers to obtain the number of BTS and new telecommunication towers so that the location of the new tower site can be positioned accordingly, with the existing tower zone 2019. The existing telecommunication BTS (Base Transceiver Station) tower is a tower that has existed before in Merauke City. With an area of 123.11 km2, there are 60 existing Telecommunication BTS towers spread across the city of Merauke until 2019. This data was obtained from the Communications and Information Office in the form of the number of BTS towers, the location of the BTS tower coordinates and the height of the BTS tower.

Conclusion
Based on the results of data processing obtained by predicting the population in 2029, the prediction of the number of users, the prediction of the total traffic generated, the prediction of the number of BTS needed and the number of towers needed, the following conclusions can be drawn 1. In Merauke City there are 60 existing towers each with each tower being operated by 1 operator. 2. From the results of data analysis and data processing that has been carried out, it is found that the number of towers with the determination of the use of shared towers is a maximum of 1 tower operated by 3 operators with a tower capacity of 3 BTS as many as 14 towers with a total BTS of 43 BTS capable of serving 76,358 cellular users with a total traffic of 2,386 Erlang.