No notes for slide. What is Bearer..?? Person A will always get at least Kbps download speed on his LTE phone while for person B there is no guaranteed bit rate and might face extremely bad download speed at times Default bearer represents a PDN connection and exists until UE gets detached from network or UE initiated PDN dis-connectivity explicitly or network force fully trigger release for the default bearer due to policy control.
VoIP, video etc. Some services required a high level of QoS like voice call. Why dont we use dedicated bearer for ims signaling as well? How it is decided to send voip traffic on dedicated bearer? How is dedicated bearer linked to default bearer? Total views 46, On Slideshare 0. From embeds 0. Number of embeds Downloads 1, Shares 0. Comments 0. Likes You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later.
Now customize the name of a clipboard to store your clips. Visibility Others can see my Clipboard. Cancel Save. Dedicated Bearer Setup:. Ref: RFC , 3gpp However, we are facing " attach rejection " issue for the dial used for this test scenario, soo what we need to know is what could be the route cause for this issue and how it can be solved.
Netmanias USA : 36th Ave. All rights reserved. English Korean About Us. HFR, Inc. Comments 4. List of Contributors. Sam Sinniah RK Kumar Very good call flow explanation. Thank you for sharing. Pratikgandhi Ahmed Kassem Thank you for visiting Netmanias! Thanks a lot for clearly explaining each and everything and putting a great effort to prepare a document like this. Please comment on this. Is it any way related to QoS? What is the bandwidth of the default E-RAB bearer for the very first time?
How is it decided? Which bearer can be established during the flightmode? Netmanias USA : 36th Ave. All rights reserved. English Korean About Us. HFR, Inc. Download PDF File.
Table of Contents 1. Closing and References 2. Figure 2. Frededick Netmanias In other words, an EPS bearer is a pipe that carries session s , and hence more than one session can use the same EPS bearer. This is why, when user traffic is delivered through bearers, user IP addresses are not shown, and only the information about the pipe that carries the user traffic, such as DRB ID or GTP tunnel i.
S1 or S5 bearer IP address, is shown. But, once arrived at P-GW or UE , different sessions carried by the bearer are identified and processed individually. Walter Hi, Netmanias Team. Thanks for your good response. One question: About "more than one session can use the same EPS bearer. Is it right? Jack Lin Thanks for the good work from Netmanias team.
Vimal Tewari Hello Sir, First of all Thankyou for such wonderful presentations. Its a delight to study these documents. Spec It is not part of S1ap Message sent to eNB. Please correct me if I am wrong and Thankyou again. Hi Vimal, Thanks for your comment. I agreed with your this point. If you are familiar with S1 - signaling, then you can verify by yourself Thanks, Bred.
Hi Vimal and Bred, Thank you for your comments and clarifications. The error has been corrected on the post and the attached file. RRC Connection Reconfiguration. Thanks again for your kind notice. Hello Sir, Thanks for your prompt response and for making things so clear. Netmanias is one of the best things that has happened to people trying to learn LTE. Thanks again and please keep up the good work. Thank you for the encouragement.
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