Spectrum Allocation in India :What ????

Hello Mr Pix,

Thanks for your reply. So, what I can say is that if suppose as of now Hutch has been give 2X8Mhz by Govt, as your example & that gives it a limitation in terms of setting up more Sites with maximum TRXs per sector. So, now it would need to get more share , let us say 2X6 Mhz more but thne this comes to be 2X14 mHz for Hutch only. But we have only 2X25 MHz channels only as per GSM specs . Now if just 2X25 Mhz is to be divided anmongts so many operators obviously not many operators would be having sufficeint spectrum. Is there any plans to increase the overall available spectrum of 2X25 MHz ?

Also I have some more queries :

01. Whatever spectrum is allocated to Hutch , say 2X8 MHz then the same is to eb used by Hutch in all Circles or it can be different circle wise ?

02. We alos hear about Defence being told to vacate some spectrum. Are they also using out of the GSM 2X25 Mhz spectrum only ? If not, then how does tehir vacating affect the GSM spectrum avauialbility .

Please excuse me for being naive but I told you that I am a Core Network Person & I really do not know mcuh about Access side.

Please help me on these .
Anybody else also having some good inputs on this topic is requested to please share that .

Regards,

Ashok

Ashok,

I’ll try to help you as much as you need, your questions can help others as well. But one thing first : Don’t call me mister, i’m neither that old, nor that formal 🙂

2×25 MHz is not enough as soon as you have more than 2 operators ! What is the solution… use another frequency band. That is the reason why another band, in the 1800 MHz, can be used.
cf. en.wikipedia.org/wiki/GSM_frequency_ranges
2×75 MHz are available. Plenty enough for 5 or 6 operators.

For your other questions, Navdeep gave you the answers already.
The government can decide to allocate certain frequencies to operator A in one region, and the same frequencies to another operator B in another region. It all depends on your government choices. They can do whatever they want.

Regards,

Hi,
for allocating frequency band let us take the example of up link.
Avalable range is 890-915.
Govt can allocate like this:
Airtel:900-905
Bsnl:910-915
Hutch: 1800-1805(1800MHz Band)

Please, i would like to know little bit about the basic knowledge of frequency reuse in gsm

there is a limited amount of frequencies. In GSM for instance, there are only 124 channels.

Each operator can receive 40 channels for instance.

In this situation, it means that 40 TRX can be activated “on air” without risks of interference. But if you want to cover a whole country, you need much more than 40 TRX’s ! Therefore you need to reuse your 40 frequencies available : several TRX’s must use identical frequencies. And in order to avoid interference, you must ensure that two TRX’s with same frequencies will not overlap their coverage, because that would generate interference.

The goal of frequency planning is to perform the best mapping of frequencies, that is, to find the best reuse pattern.

Hello Sir,

As i want to Know about the total working of the BTS,mainly the call routine when dialed or received.From ur previous messages i had to know about the allocation of the band.So from that please explain me about the 2X25 MHz band,means what this 2 and 25 means for.
I am curiosly waiting for the reply.