Well I thought I will be able to write about VoLTE and Network deployment but I figured out that I am still not ready for that. It is going to take some more reading and understanding from my side. So I decided to go ahead and get inside the building!!
Yes , this month the focus is going to be In-Building Solutions, DAS and some more cool words!! :)
Most importantly I am not an iBwave expert or IBS/DAS expert. I liked this area so I started reading and understanding more.
There are a very few (actually very very few) books available on this topic. So I am still finding out as much as I can.
Here is the list of topics I intend to cover this month.
1. Need and Importance of IBS
2. Introduction to DAS
3. Designing Indoor DAS
4. Tools
5. Optimization
6. Noise/Traffic/LinkBudget
1. Need and Importance of IBS : First and foremost, why IBS ? Before implementing any new technology or concept, the "WHY" part is essential. Is it necessary to answer questions like , profits/total number of users/kind of data traffic/current coverage due to Macro etc. Why not have macro coverage (sometimes from multiple sites), what would be my cost benefits , quality etc. Then comes the futuristic plans, is there enough scope for expansion for new services and more operators.These and lot more questions need to be carefully answered even before one starts designing any DAS system.
2. Introduction to DAS : DAS- Distributed Antenna System. What exactly is this? According to wikipedia, " is a network of spatially separated antenna nodes connected to a common source via a transport medium that provides wireless service within a geographic area or structure." There are three types of DAS,
Active DAS, Passive DAS, Hybrid DAS.
a. Active DAS : Active DAS has the ability to automatically compensate for the losses of the cables interconnecting the components in the system by using internal calibrating signals and amplifiers. It does not matter what the distance between the antenna and the base station, all antennas in an active DAS will have the same performance
b. Passive DAS : Passive DAS in opposite to the Active system does not compensate for losses due to cables or components. Hence it is used in smaller buildings.
c. Hybrid DAS : As the name suggests, its a combination of both!!
I want to go through details of all these three types of systems, there components, power levels, Uplink/Downlink performance and more.. Lets do it next month.
3. Designing Indoor DAS : This is the most important and interesting part. I want to elaborate this section.
The first and foremost step here is the need of installing DAS at a particular location. There are multiple factors affecting this decision. Next step would be from the financial side , the investment/returns etc.. Third step would be RF planning. Many tools are available for this (iBwave, Ekahau, Airmagnet and so on ) ..Site surveys , initial design need to be done in this phase of the project. Elevators, handoffs , spillage (isolation of DAS) also need to be considered while designing the system. Whether the system is single/multi operator also needs to be taken into account while designing. This month is just introduction to DAS, we will get into details of everything as we go forward.
I can go on , but then the post will be too long.As I said, it is just introduction , we will get into all the details soon.
Yes , this month the focus is going to be In-Building Solutions, DAS and some more cool words!! :)
Most importantly I am not an iBwave expert or IBS/DAS expert. I liked this area so I started reading and understanding more.
There are a very few (actually very very few) books available on this topic. So I am still finding out as much as I can.
Here is the list of topics I intend to cover this month.
1. Need and Importance of IBS
2. Introduction to DAS
3. Designing Indoor DAS
4. Tools
5. Optimization
6. Noise/Traffic/LinkBudget
1. Need and Importance of IBS : First and foremost, why IBS ? Before implementing any new technology or concept, the "WHY" part is essential. Is it necessary to answer questions like , profits/total number of users/kind of data traffic/current coverage due to Macro etc. Why not have macro coverage (sometimes from multiple sites), what would be my cost benefits , quality etc. Then comes the futuristic plans, is there enough scope for expansion for new services and more operators.These and lot more questions need to be carefully answered even before one starts designing any DAS system.
2. Introduction to DAS : DAS- Distributed Antenna System. What exactly is this? According to wikipedia, " is a network of spatially separated antenna nodes connected to a common source via a transport medium that provides wireless service within a geographic area or structure." There are three types of DAS,
Active DAS, Passive DAS, Hybrid DAS.
a. Active DAS : Active DAS has the ability to automatically compensate for the losses of the cables interconnecting the components in the system by using internal calibrating signals and amplifiers. It does not matter what the distance between the antenna and the base station, all antennas in an active DAS will have the same performance
b. Passive DAS : Passive DAS in opposite to the Active system does not compensate for losses due to cables or components. Hence it is used in smaller buildings.
c. Hybrid DAS : As the name suggests, its a combination of both!!
I want to go through details of all these three types of systems, there components, power levels, Uplink/Downlink performance and more.. Lets do it next month.
3. Designing Indoor DAS : This is the most important and interesting part. I want to elaborate this section.
The first and foremost step here is the need of installing DAS at a particular location. There are multiple factors affecting this decision. Next step would be from the financial side , the investment/returns etc.. Third step would be RF planning. Many tools are available for this (iBwave, Ekahau, Airmagnet and so on ) ..Site surveys , initial design need to be done in this phase of the project. Elevators, handoffs , spillage (isolation of DAS) also need to be considered while designing the system. Whether the system is single/multi operator also needs to be taken into account while designing. This month is just introduction to DAS, we will get into details of everything as we go forward.
I can go on , but then the post will be too long.As I said, it is just introduction , we will get into all the details soon.
