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How SMS is sent in WCDMA?
Hi experts,
How SMS is sent in 3G? On which channel?
How i receive SMS while i am on CS or PS RAB ?
Any document ? Because i didn't find some useful link/document for understanding.
Thanks for the support!
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Thanks!
Pass: optimizer
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2013-03-27 06:26 PM
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Re: How SMS is sent in WCDMA?
Hi.
It is transferred over the SDCCH. However, if the UE is in connected mode, it will use the FACCH instead of SDCCH.
You can read more in 3GPP TS 23.040, Technical realization of the Short Message Service.
Regards
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Senior Member
Reputation: 313
Re: How SMS is sent in WCDMA?
Originally Posted by
khurrambilal01
Hi experts,
How SMS is sent in 3G? On which channel?
How i receive SMS while i am on CS or PS RAB ?
Any document ? Because i didn't find some useful link/document for understanding.
Thanks for the support!
Hi,
Check this thread.
http://www.finetopix.com/showthread....S-flow-in-UMTS
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Re: How SMS is sent in WCDMA?
Originally Posted by
Nyquist
Hi.
It is transferred over the SDCCH. However, if the UE is in connected mode, it will use the FACCH instead of SDCCH.
You can read more in 3GPP TS 23.040, Technical realization of the Short Message Service.
Regards
Thanks Nyquist; But my query was related to UMTS not GSM
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Thanks!
Pass: optimizer
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VIP Member
Reputation: 1849
Re: How SMS is sent in WCDMA?
It is transferred using the SRB (Signalling Radio Bearer). The SRB can co-exist with DRB (data radio bearer) so you can receive SMS while having a CS RAB or PS RAB or both. Which channels are used depends on the RRC state the UE is in. If in CELL_DCH the SRB is mapped on the DCH, if in CELL_FACH then FACH/RACH.
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Member
Reputation: 140
Re: How SMS is sent in WCDMA?
Simple and straight:
RACH/FACH in case on only SMS.
otherwise as said below.
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Re: How SMS is sent in WCDMA?
What is way incase of Multi RAB?
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