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.




285 posts

Ultimate Geek
+1 received by user: 5

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,



285 posts

Ultimate Geek
+1 received by user: 5

Trusted

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

Thanks paradoxsm. "Super-fringe" point noted.

 
 
 
 


19282 posts

Uber Geek
+1 received by user: 2600
Inactive user


  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


875 posts

Ultimate Geek
+1 received by user: 25

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 







285 posts

Ultimate Geek
+1 received by user: 5

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.

19282 posts

Uber Geek
+1 received by user: 2600
Inactive user


  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

5052 posts

Uber Geek
+1 received by user: 2085

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 xDSL broadband network faster. If your still stuck on ADSL or VDSL, why not spend from $150 on a master filter install to make sure you are getting the most out of your connection?
I install - Naked DSL, DSL Master Splitters, VoIP, data cabling and general computer support for home and small business.
Rural Broadband RBI installer for Ultimate Broadband and Full Flavour

 

Need help in Auckland, Waikato or BoP? Click my email button, or email me direct: [my user name] at geekzonemail dot com


2838 posts

Uber Geek
+1 received by user: 73


  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)





25591 posts

Uber Geek
+1 received by user: 5366

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.




2838 posts

Uber Geek
+1 received by user: 73


  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!





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 Ministry of Education chooses Unisys for cloud-based education resourcing management system
Posted 22-Nov-2017 22:00


Business analytics software powers profits for NZ wine producers
Posted 22-Nov-2017 21:52


Pyrios strikes up alliance with Microsoft integrator UC Logiq
Posted 22-Nov-2017 21:51


The New Zealand IT services ecosystem - it's all digital down here
Posted 22-Nov-2017 21:49


Volvo to supply tens of thousands of autonomous drive compatible cars to Uber
Posted 22-Nov-2017 21:46


From small to medium and beyond: Navigating the ERP battlefield
Posted 21-Nov-2017 21:12


Business owners: ERP software selection starts (and finishes) with you
Posted 21-Nov-2017 21:11


Why I'm not an early adopter
Posted 21-Nov-2017 10:39


Netatmo launches smart home products in New Zealand
Posted 20-Nov-2017 20:06


Huawei Mate 10: Punchy, long battery life, artificial intelligence
Posted 20-Nov-2017 16:30


Propel launch Disney Star Wars Laser Battle Drones
Posted 19-Nov-2017 21:26


UFB killer app: Speed
Posted 17-Nov-2017 17:01


The case for RSS — MacSparky
Posted 13-Nov-2017 14:35


WordPress and Indieweb: Take control of your online presence — 6:30 GridAKL Nov 30
Posted 11-Nov-2017 13:43


Chorus reveals technology upgrade for schools, students
Posted 10-Nov-2017 10:28



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.