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



200 posts

Master Geek
+1 received by user: 1

Trusted

Topic # 31782 30-Mar-2009 15:58 Send private message

Is GPRS (2.5G?) service automatically available from every Vodafone NZ cell-site that provides 2G service?

I understand GPRS uses similar channel technology as 2G voice/data albeit using eg 2/4 slots at once? The coverage maps seem to indicate that GPRS has the same coverage provided as 2G voice/data, but is it as simple as that? 

I would like to know whether I can get Internet access via GPRS from every site that has 2G voice coverage.

Create new topic
3001 posts

Uber Geek

Trusted

  Reply # 204225 30-Mar-2009 16:04 Send private message

Both Vodafone and Telecom have nationwide "2G" packet data networks on every site that supports Voice.

Bear in mind that data will not always work in super-fringe areas due to packet-loss and propagation timeslot issues.

Both Telecom and Vodafone are promising nationwide 3G data to the full extent of their voice networks by June 2009. UMTS 850MHz  (Telecom) and UMTS 900MHz (Vodafone) which should provide excellent high speed coverage,



200 posts

Master Geek
+1 received by user: 1

Trusted

  Reply # 204232 30-Mar-2009 16:17 Send private message

Thanks paradoxsm. "Super-fringe" point noted.

16344 posts

Uber Geek
+1 received by user: 1331

Trusted
Vodafone NZ

  Reply # 204238 30-Mar-2009 16:36 Send private message

Some sites have extended cell 2 time slots one voice call 70k coverage (approx)

GPRS will not work on extended cell when over 35k from serving Cell

IE Out the back of Waiheke coverage is from Port Jackson this is more than 35k from the serving cell so no GPRS

John





777 posts

Ultimate Geek
+1 received by user: 1

Subscriber

  Reply # 204277 30-Mar-2009 18:59 Send private message

johnr: Some sites have extended cell 2 time slots one voice call 70k coverage (approx)

GPRS will not work on extended cell when over 35k from serving Cell

IE Out the back of Waiheke coverage is from Port Jackson this is more than 35k from the serving cell so no GPRS

John




Hi John, are these extended range sites mostly used for marine coverage? Are there any inland. Cheers Andrew 



200 posts

Master Geek
+1 received by user: 1

Trusted

  Reply # 204294 30-Mar-2009 20:30 Send private message

johnr: ... GPRS will not work on extended cell when over 35k from serving Cell ...


Thanks John. I'm quite prepared to drive nearer to a tower to obtain a reasonable signal - just I don't want to have to try to find a Wi-fi point in the countryside.

16344 posts

Uber Geek
+1 received by user: 1331

Trusted
Vodafone NZ

  Reply # 204298 30-Mar-2009 20:38 Send private message

andrewcnz:
johnr: Some sites have extended cell 2 time slots one voice call 70k coverage (approx)

GPRS will not work on extended cell when over 35k from serving Cell

IE Out the back of Waiheke coverage is from Port Jackson this is more than 35k from the serving cell so no GPRS

John






Hi John, are these extended range sites mostly used for marine coverage? Are there any inland. Cheers Andrew 


Not many inland at all very few use extended cell on the Vodafone NZ network

John




3652 posts

Uber Geek
+1 received by user: 920

Trusted
Subscriber

  Reply # 205512 6-Apr-2009 11:56 Send private message

johnr: Some sites have extended cell 2 time slots one voice call 70k coverage (approx)

GPRS will not work on extended cell when over 35k from serving Cell

IE Out the back of Waiheke coverage is from Port Jackson this is more than 35k from the serving cell so no GPRS

John


Once this site is 3G 900 - what kind of distance could be expected? I.E. all things being perfect, the weather, antenna very high on boat mast etc etc. Is there an actual technical limit - like the 35/70km for GSM?





Chorus has spent $1.4 billion on making their ADSL broadband network faster. Why not spend a couple of hundred to make sure you are getting the most out of your connection?
Geekzone special price: $150* for master splitter install, normally $200+ through your ISP. Auckland and Waikato areas.
*Travel charges may apply. Additional costs may apply for complex installs.
I install - Naked DSL, DSL Master Splitters, VoIP, RBI Rural Broadband. Also a dealer for WorldxChange.
Need help in Auckland or Waikato? Click my email button, or email me direct: [my user name] at geekzonemail dot com

2423 posts

Uber Geek
+1 received by user: 24


  Reply # 205558 6-Apr-2009 15:45 Send private message

Personally, I wouldn't think there would be a limit as such. From my understanding, its like HAM radio or PRS. You can get a lot further, but there is a minimum distance.

I think the figures that have been quoted are just averages, but they could be capable of more depending on atmospheric conditions  (please feel to correct me if im wrong, though)




This is a signature.



19532 posts

Uber Geek
+1 received by user: 1360

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 205590 6-Apr-2009 17:08 Send private message

Aaroona: Personally, I wouldn't think there would be a limit as such. From my understanding, its like HAM radio or PRS. You can get a lot further, but there is a minimum distance.

I think the figures that have been quoted are just averages, but they could be capable of more depending on atmospheric conditions  (please feel to correct me if im wrong, though)


GSM has a maximum range of 35km. This is a technical limitation due to the timing requirements for a TDMA based network. Halving the timeslots (and capacity of the site) means this can be doubled.

WCDMA doesn't really have a maximum range. It's not a fixed number and will change depending on the network load and the SNR of the area you are in. Both CDMA and WCDMA suffer from cell breathing which means the coverage areas will "breath" changing dynamically depending on network loads.

Telstra have a large number of Next G sites in Australia with up to 200km range. You won't get this sort of range however with a regular handset, it's typically fixed cellular units with yagi high gain antennas.




2423 posts

Uber Geek
+1 received by user: 24


  Reply # 205594 6-Apr-2009 17:24 Send private message

sbiddle:
Aaroona: Personally, I wouldn't think there would be a limit as such. From my understanding, its like HAM radio or PRS. You can get a lot further, but there is a minimum distance.

I think the figures that have been quoted are just averages, but they could be capable of more depending on atmospheric conditions  (please feel to correct me if im wrong, though)


GSM has a maximum range of 35km. This is a technical limitation due to the timing requirements for a TDMA based network. Halving the timeslots (and capacity of the site) means this can be doubled.

WCDMA doesn't really have a maximum range. It's not a fixed number and will change depending on the network load and the SNR of the area you are in. Both CDMA and WCDMA suffer from cell breathing which means the coverage areas will "breath" changing dynamically depending on network loads.

Telstra have a large number of Next G sites in Australia with up to 200km range. You won't get this sort of range however with a regular handset, it's typically fixed cellular units with yagi high gain antennas.






Thanks for that, I stand corrected. Good bit of reading, actually!




This is a signature.



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 »

Trending now »
Hot discussions in our forums right now:

Moment of Truth?
Created by BarTender, last reply by joker97 on 20-Sep-2014 11:54 (405 replies)
Pages... 25 26 27


Festival of Democracy
Created by gzt, last reply by Geektastic on 21-Sep-2014 23:11 (117 replies)
Pages... 6 7 8


Mr. Key to extradite Kim Dotcom?
Created by TimA, last reply by SaltyNZ on 18-Sep-2014 09:20 (126 replies)
Pages... 7 8 9


Predict E(l)ection 2014 & win
Created by nakedmolerat, last reply by Kyanar on 22-Sep-2014 00:43 (77 replies)
Pages... 4 5 6


IOS8 - Network Load
Created by FireEngine, last reply by raytaylor on 20-Sep-2014 16:55 (45 replies)
Pages... 2 3


Computer Lounge's Zen Radical
Created by JayADee, last reply by JayADee on 19-Sep-2014 14:51 (15 replies)

Maybe some politicians should go back to school?
Created by jarledb, last reply by DarthKermit on 18-Sep-2014 18:27 (31 replies)
Pages... 2 3


Will My VDSL gets better?
Created by coconuts, last reply by Saranis on 21-Sep-2014 11:54 (29 replies)
Pages... 2



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.