- This topic has 27 replies, 1 voice, and was last updated 4 years, 2 months ago by Ayat.
10th February 2013 at 14:21 #59077pixGuest
no, it’s the contrary : the user only perceives the LLC throughput.
The RLC throughput is completely transparent for the end user.14th February 2013 at 03:01 #59078BryanGuest
Thanks a lot Pix. Now, i’m not confused anymore. For the scenario that ‘Application througput’ is greater than the LLC and RLC throughput, i think, the value decreases due to retransmission — total average result differs from the expected result (Physical > MAC > RLC > LLC > Application).15th February 2013 at 22:16 #59079pixGuest
Physical > MAC > RLC > LLC > Application
that is correct. It can even be refined, roughly, because some throughputs are almost equal :
Physical = MAC = RLC > LLC = Application
pix23rd March 2013 at 16:19 #59080AleksandrGuest
Our 3G network buit on two vendors: ZTE and Huawei.
Average HSDPA throughput in Huawei networks is about 900kbps and average HSDPA Throughput in ZTE networks is about 1700 kbps.
When I checked formulas I found that Huawei formula calculates HSDPA throughput on RLC level and ZTE formula calculates HSDPA throughput on MAC-hs level.
We tried to simulate users behaviour and found that calculation as per Huawei formula is equal to application throughput (the same speed that application was downloaded).
We escalated this issue to Huawei support and as per their reply the problem is due to calculation on RLC level. After upgrade to R14 new counters will be activated and we can calculate throughput on MAC-hs level. They replied that after sofware version upgrade in another operator HSDPA throughput (calculated on MAC-hs level) increased in 2-2.2 time (compare to previous HSDPA throughput calculation on RLC level).
Do you have any ideas why HSDPA throughput calculated on MAC-hs level in 2-2.2 time higher the HSDPA throughput calculated on RLC level.23rd March 2013 at 22:14 #59081DellGuest
we’ve been asked from the management to report throughput and serving bitrate in a cell level. What is the difference between them. Aren’t they the same thing?
Which indicators corresponds to them in NPO? Also, how to calculate average serving bitrate per connection?
Please, if someone can help me!
We are on ALU B11.
Dell4th May 2013 at 09:38 #59082Ajit Kumar GuptaGuest
Plz help me to clear the basic differences between RLC, LLC and Application throughput10th May 2014 at 18:54 #59083rafa RFGuest
as aleksandr said, in a Venezuelan network we have the same phenomena, ZTE throughput is higher than Huawei. Huawei experts says that ZTE calculate it in MAC-hs layer and Huawei in the MAC-d flows, since the MAC-hs has more payload due the headers, signalling and retransmissions, the throughput is higher.please if any of you have more information about it to undestand better the situation will be appriciated.
thank you and best regards.3rd June 2014 at 06:42 #59084ghamizGuest
dear Aleksandr, thought the thread is quite old, can you kindly share the KPI formula for ZTE HSDPA throughput?4th June 2014 at 10:34 #59085AleksandrGuest
C310545121 /(C310545122*0.002)18th September 2014 at 06:35 #59086SilenthillGuest
If utilization of a cell increases from 100%. is it necessary that blocking will occur on these cells.because i got some cases in which utilization is over 100% but still i am getting no TCH blocking.26th January 2015 at 07:17 #59087KhelanGuest
im still not clear about SNDCP Throughput,i want explaination.And when we are checking network throughput which data we should consider SNDCP or LLC or RLC??how can we improve these parameters within a cell.i will be thankful for your reply.20th July 2015 at 07:29 #59088ASIFGuest
how to calculate RSCP values in netnumen ?16th November 2016 at 18:27 #59089AyatGuest
I am confused about number of PDCH
For EDGE dimensionig, you should actually start from the Downlink RLC throughput required by users, on Air interface + the amount of EDGE users. That is your initial assumption. For example, as a EDGE user, I would want to get at least 130kb/s most of the time.
And in average, you can assume there are 1.5 users at the same time in one cell. So you need : 6 or 7 PDCH with a throughput in MCS9, etc etc”
how we calculate i got 4 pdch from my calculation