Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

654 posts

Ultimate Geek
+1 received by user: 52

Topic # 85151 14-Jun-2011 22:08
Send private message


Just an observation I made shortly after the June 13th earthquake, like most people I reached for my 2degrees mobile to check on my loved ones etc, Surprize surprize Network busy, after three tries I changed my data settings to use 2g networks only, then tried calling again, boom straight through, but to their voice mail, then tried again and the call went through, this surprized me as I thought that the call would have been handed from 3g down to the 2g network automatically, Is this not the case? It seems silly I was not able to make the call while on 3g when there was obviously capacity on the 2g network, or was it just a fluke? I was located in opawa area Christchurch.

Create new topic
19282 posts

Uber Geek
+1 received by user: 2600
Inactive user

  Reply # 481226 14-Jun-2011 22:20
Send private message

I am not surprised

No network is designed to carry everyone calling and sending SMS at the same time, Blocking goes sky high when something like the chch EQ happens!

2242 posts

Uber Geek
+1 received by user: 353


  Reply # 481251 14-Jun-2011 23:20
Send private message

johnr: I am not surprised

No network is designed to carry everyone calling and sending SMS at the same time, Blocking goes sky high when something like the chch EQ happens!

John can you please explain how the call capacity works per tower or region? Are there only x number of slots available per cell tower / region , and is this number related to the technology used or the amount of backhaul provisioned to the region / tower?

ie, is the only cure for a huge rush of calls more towers or can more capacity be added by other means? I've heard a bit of talk about this with the upcoming Rugby World Cup and its interesting to see how the different players have chosen to tackle the situation. 


19282 posts

Uber Geek
+1 received by user: 2600
Inactive user

  Reply # 481256 14-Jun-2011 23:34
Send private message

3G does not have time slots like 2G (GSM / TDMA)

All sites are different depending on so many factors! right down to how much spectrum the carrier has, How far the site can see depending on the tilt / height of the panels in relation to the neighboring cell. Higher capacity cell with many TRXs would require more transmission over a cell that is 2+2+2 and then you have to factor in packet switch channels. So much planning / drive testing goes into deploying these things the mind boggles,

I am no expert on this subject, I have done Nokia Systra 2G/3G and know bits here and there. Don't ask me to design / build a mobile network please. I just might pass you some Walkie talkie Radios from Jaycar

10554 posts

Uber Geek
+1 received by user: 1749


  Reply # 481257 14-Jun-2011 23:36
Send private message

I use Telecom Mobile, and I did make calls but that was intermittent, texts got through although one failed, but a resend went through. I did get a text back 5 hours later from a Voda number (not criticising Voda). In these events, anything can happen, but both networks did a great job and worked well.

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

New Zealand's IT industry in 2018 and beyond
Posted 22-Jan-2018 12:50

Introducing your new workplace headache: Gen Z
Posted 22-Jan-2018 12:45

Jucy set to introduce electric campervan fleet
Posted 22-Jan-2018 12:41

Hawaiki cable system will be ready for service in June 2018
Posted 22-Jan-2018 12:32

New Zealand hits peak broadband data
Posted 18-Jan-2018 12:21

Amazon Echo devices coming to New Zealand early February 2018
Posted 18-Jan-2018 10:53

$3.74 million for new electric vehicles in New Zealand
Posted 17-Jan-2018 11:27

Nova 2i: Value, not excitement from Huawei
Posted 17-Jan-2018 09:02

Less news in Facebook News Feed revamp
Posted 15-Jan-2018 13:15

Australian Government contract awarded to Datacom Connect
Posted 11-Jan-2018 08:37

Why New Zealand needs a chief technology officer
Posted 6-Jan-2018 13:59

Amazon release Silk Browser and Firefox for Fire TV
Posted 21-Dec-2017 13:42

New Chief Technology Officer role created
Posted 19-Dec-2017 22:18

All I want for Christmas is a new EV
Posted 19-Dec-2017 19:54

How clever is this: AI will create 2.3 million jobs by 2020
Posted 19-Dec-2017 19:52

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.