I would like to know technical answer on how many no of Active Subs are possible to be served by one 1eNodeB or single sector..
As we know each sector can have 100 RB on 0.5ms slot..!!!
An eNB may be supporting many more active users (in RRC Connected state) than it has available resource blocks; users would have to wait to be scheduled for transmissions. From a practical perspective, the number of supported users on an eNB is determined by the vendor's implementation, and may be limited by memory, processing power, number of active bearers, and so on. You could probably expect to see around 100 active users per cell before the eNB starts blocking.
you can estimate the subscriber number N _Sub can be calculated as .
for your example . 100 RB means bandwidth 20 MHz..
IN THIS case you must know :
The Cell Capacity : is the average data rates Since only some of the subscribers are downloading data simultaneously.
the Overbooking Factor: also called contention ratio is applied here which indicates the number of users sharing the same data capacity at the same time. It is an experience-based value and usually set to 20.
Busy Hour (BH) is the hour during a 24-hour time frame that has the greatest number of calls .
50% is set as the default value and it can be changed by the operator.
To the required user data rate : according to 3GPP ,Release 8, five terminal categories
to calculate the maximum downlink subscriber number in a three-sector cell,
with the cell capacity 35 Mbps and the Terminal Category 1 chosen,
is ((35 x 50% ) /3* (10/20)) =105 users