Hello Experts,
If anyone can help undertstanding why does HSUPA consume much more Channel elements (CEs) than the HSDPA does?
Thank you in advance..
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Hello Experts,
If anyone can help undertstanding why does HSUPA consume much more Channel elements (CEs) than the HSDPA does?
Thank you in advance..
Hi,
HSDPA is a common channel and as a result CEs are shared among users. essentially, users are multiplexed on a TTI (= 2ms) basis, and as a result the same resources (i.e. CEs) can be shared by everybody
on the other hand, HSUPA is a dedicated channel which also makes use of soft handover. This situation is similar to R99 channels: CEs must be allocated on a dedicated basis for the duration of the HSUPA session, and of course different resources are required on each Node-B participating in the HSUPA active set.
hope this helps
Hi,
But as per my knowledge, the CE consumption for HSDPA will be zeo in case the SRB over HSPA feature was used, correct me If I'm missing anything here..
basically, that is correct.
because HSDPA has shared CE usage, all HSDPA users appear as if they don;t use any CE at all while in HSDPA. and this is the same not only for SRB but everything running over HSDPA
what i want to say here is that the "shared usage" is not caprtured by (for example) DL Credit usage node-b huawei counters, and this counter appears as zero. makes sense?
yeap that is correct
Hi,
The diffenrent is, HSUPA require much CE for high speech dedicated channel with low SF, while HSDPA is only require CE for associated channel, means A-DCH, and R99, these channel with high SF.