In LTE networks , how we can know that a particular eNB node is overloaded or not ? I mean how to know that there is a requirement of load balancing . Is there any unit or metric to measure load of eNB?
Kindly reply asap.
Thanks Much
In my opinion, the eNB is considered overloaded, once the QoS of UEs starts to deteriorate. Thus the throughput is a good metric to evaluate the overloading of eNBs in LTE/LTE-A networks.
yes this is common for 2G/3G sites as well...when QOS starts degrade the enb or node b can be considered as overloaded.
Thank you all for guidance.
Ibrahim Sir, can u plz guide me the answer in a slight more detail with an example. Please. I mean what is the max .value of throughput of a particular eNB after which it is considered as overloaded and so on......??
Well i don't know how to start Mr. Shilpy Agrawal. Offloading is a kind of handover, but based on QoS and not for example on SINR. So when an eNB is overloaded, some of the users have to be handed over to another eNB or a Femto and so on, and this to release some of the radio resources to maintain the QoS of the rest of the users. So really, its not looked on as the max value of throughput of the eNB. But on how much resources the eNB can assign to the users, and this depends on the BW and the number of users. So to start with, just find the number of resource blocks (RB), and you can give a random QoS requirement for each user (number of RBs) and then see if all users are satisfied, other wise the eNB is congested or overloaded. In this case handover one user and calculate satisfaction rate, is it still below? yes , handover another user, if No stop handing over. That's it. very simple. Hope this helps.
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