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Member
Reputation: 50
Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
Dear experts,
Could you please explain Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
BR,
Fahmi
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2015-02-05 11:44 PM
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Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
Originally Posted by
fahmi
Dear experts,
Could you please explain Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
BR,
Fahmi
Hi,
Actually, It is not required for this purpose !
Cheers
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Member
Reputation: 50
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
Originally Posted by
electron
Hi,
Actually, It is not required for this purpose !
Cheers
Hi,
I think with TTI 2ms we reach 2.6 M and with SRBoH to 5.7.
Otherwise why SRBoH ?
BR
Fahmi
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Member
Reputation: 95
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
you need SRB over HSPA to free dedicated Signalling channels and by this you can achieve 2SF2+2SF4
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VIP Member
Reputation: 1249
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
Hi, For HSUPA 5.76 Mb, only you need support tti with 2 ms. , and 2SF2 + 2SF4.
http://www.sharetechnote.com/html/Ha...goryTable.html
And for SRB over HSPA or F-DPCH, you have to support HSDPA and HSUPA (with TTI 2ms or 10ms)
http://www.sharetechnote.com/html/Ha...TS_F_DPCH.html
W./
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Post Thanks - 1 Thanks
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Member
Reputation: 50
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
Originally Posted by
william.dg08
And to have 2SF2 + 2SF4 you need SRBoHSPA. So HSUPA 5.76M need SRBoHSPA
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VIP Member
Reputation: 1851
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
The answer to your question lies in 3GPP TS 25.213 table 0.
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Member
Reputation: 113
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
If you dont use the SRB over HSUPA, the signaling will be over DCH.
And this DCH signaling will use a code to transfer such channel in this way you will block the code tree, so you cant use 2SF2+2SF4 anymore. So to achieve 5.7Mbps you must deploy SRBoHSUPA.
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Post Thanks - 3 Thanks
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Senior Member
Reputation: 491
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
I'm confused, some consultants recommend SRB over HSUPA
other recommend over HSPA
Could you please share good document for R16
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Senior Member
Reputation: 722
Re: Why does HSUPA5.76M need RNC supports SRBoverHSPA ?
Hi.
SRB over HSDPA is not mandatory, but as friend rfsupp says, in order to save codes it could be highly recommended, but from my point of view, this only is applicable to thoses cases you have codes issues.
Regards.
Nyquist
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