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susantem
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susantem,
User Rank: Light Beer
5/17/2019 | 9:39:51 PM
Re: No reference to low latency in China Telecom presentation
It's hard to see anything that domestic operators in China (or elsewhere) are doing as a geo-political/industrial policy threat. It's not as if they are in direct competition with Verizon, Telfonica or NTT. It really doesn't matter if they're a few months behind on commerical 5G eMBB, or a few months ahead on URLL. 
ajwdct1
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ajwdct1,
User Rank: Light Beer
3/21/2019 | 5:20:27 PM
Does 5G Latency include the cloud network?
In some cases it certainly does (e.g. remote surgery in a village from a hospital thousands of kilometers away), but in others it doesn't (any real time critical/ultra low latency IMT 2020 use case).  For the latter, mobile edge networking is urgently needed.  The edge network is likely to be closer to the 5G endpoint than the cloud network point of presence.

References:

http://techblog.comsoc.org/2019/03/15/verizon-and-att-want-to-virtualize-the-5g-network-core-and-use-mobile-edge-computing/

http://techblog.comsoc.org/2019/03/19/china-telecom-to-accelerate-5g-deployment-100-fiber-network-coverage-gigabit-fiber-broadband-deployment/

http://techblog.comsoc.org/2019/02/27/att-tests-5g-and-edge-computing-with-microsoft-azure/
iainmorris
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iainmorris,
User Rank: Blogger
3/20/2019 | 12:18:27 PM
Re: No reference to low latency in China Telecom presentation
I'm not sure if we are disagreeing or just talking about slightly different things. I know from recent discussions with service providers that several big operators in Europe expect only some of the latency improvements to come from investment in new 5G access technologies in the next few years. The key thing for many of them is rearchitecting the network and building a distributed cloud to support the 5G services they want to offer. There is a Light Reading feature that covers this here: https://www.lightreading.com/the-edge/europes-big-telcos-are-getting-edgy-about-5g/d/d-id/750084?

 
ajwdct1
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ajwdct1,
User Rank: Light Beer
3/20/2019 | 12:01:44 PM
Re: No reference to low latency in China Telecom presentation
Let's agree to disagree Iain.  All 5G low latency claims I've read or heard about refer to the 5G access network- not the cloud network which is carrying many different types of traffic.  In my definition, latency should include the 5G access network, 5G mobile packet core and edge network (if any). 

The 5G-IMT2020 radio access network latency objectives, which Ericsson and others often say will faciliate many new applications, are specified in ITU-R M.2410-0: https://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-M.2410-2017-PDF-E.pdf

The minimum requirements for user plane latency are:  4 ms for eMBB and 1 ms for URLLC assuming unloaded conditions (i.e. a single user) for small IP packets (e.g. 0 byte payload + IP header), for both downlink and uplink.

.......................................................................................................................

There is no spec or even target for cloud network latency related to carrying 5G packets. In fact, the cloud network might not be used at all for real time control applications of 5G such as V2V or IoT

 
iainmorris
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iainmorris,
User Rank: Blogger
3/20/2019 | 11:25:41 AM
Re: No reference to low latency in China Telecom presentation
I'm not sure what point you're making. Industry-leading latency in a 5G future could provide an advantage whether it relates to access, core, transport or something else that comes out of a standards group. The article doesn't anywhere tie the stuff about latency to a specific part of 5G standardization activities.
ajwdct1
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ajwdct1,
User Rank: Light Beer
3/20/2019 | 11:18:04 AM
Re: No reference to low latency in China Telecom presentation
Slide 16 describess China Telecom's CLOUD NETWORK & Cloud led network integration (with other subnetworks like 5G Core-yet to be defined/specified).  The company's cloud centric network is "industry leading in latency."  Copy/paste:
 
Cloud-Led Network and Cloud-Network Integration

  • IDC/cloud-centric network + optimized network architecture 
 Industry-leading in latency  
........................................................................................................
  • To support rapid deployment of entirely cloud based 5G 
✓Large bandwidth ✓Low latency  
...........................................................................................................
How they will do entirely "cloud based 5G" is a mystery to me.  However the "industry leading low latency"  claim refers to its cloud network- not 5G access or 5G core network (yet to be defined)
iainmorris
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iainmorris,
User Rank: Blogger
3/20/2019 | 11:13:19 AM
Re: No reference to low latency in China Telecom presentation
It depends on your perspective. If you think 5G is just an evolution of 4G - a nice to have that will speed things up a bit but not make a radical difference on the services or productivity fronts - then I agree there isn't much advantage if China's operators get there before US operators. If, on the other hand, it ushers in a new wave of services, and particularly if those services are of critical value to enterprise customers, it is hard to see how countries like Germany won't lose out if they are slow off the 5G mark. This is exactly why there is such anxiety about Europe's perceived 5G lag.
Duh!
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Duh!,
User Rank: Blogger
3/20/2019 | 10:57:01 AM
Re: No reference to low latency in China Telecom presentation
" To support rapid deployment of entirely cloud based 5G
     ✓Large bandwidth ✓Low latency"

I read that as they're investing in a cloud architecture that will ultimately support eMBB and URLL 5G services. Nothing on that slide that I wouldn't expect from any of leading edge Tier-1s in North America, Europe or Northeast Asia.

It's hard to see anything that domestic operators in China (or elsewhere) are doing as a geo-political/industrial policy threat. It's not as if they are in direct competition with Verizon, Telfonica or NTT. It really doesn't matter if they're a few months behind on commerical 5G eMBB, or a few months ahead on URLL. 

Technology suppliers on the other hand....

 
iainmorris
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iainmorris,
User Rank: Blogger
3/20/2019 | 4:10:36 AM
Re: No reference to low latency in China Telecom presentation
The references to latency, as well as the edge and 5G core, are on slide 16 of the investor presentation.
ajwdct1
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ajwdct1,
User Rank: Light Beer
3/19/2019 | 8:02:26 PM
No reference to low latency in China Telecom presentation
I could not find one reference to low latency in China Telecom's March 19, 2019 presentation: https://www.chinatelecom-h.com/en/ir/presentations/annpre190319.pdf

5G low latency will be defined in 3GPP Release 16- due to be completed in Dec 2019 and then submitted to ITU-R WP 5D for that IMT 2020 use case in 3GPP's IMT 2020 RIT proposal sometime in 2020.

REFERENCE: 

China Telecom to accelerate 5G deployment; 100% Fiber network coverage; Gigabit fiber broadband deployment


http://techblog.comsoc.org/2019/03/19/china-telecom-to-accelerate-5g-deployment-100-fiber-network-coverage-gigabit-fiber-broadband-deployment/

 

 


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