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How does Cingular do A-GPS/e911/Location Based stuff?

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Anonymous
November 18, 2004 12:28:40 AM

Archived from groups: alt.cellular.cingular (More info?)

What technology does Cingular use and have they released a developer's
kit for it? I figured they'd have a java API released (like all the
other vendors), but I cannot find one. There's NO talk on the
Cingular developer's website - I asked there first :-(.

Thanks!

Bret
Anonymous
November 18, 2004 8:06:22 PM

Archived from groups: alt.cellular.cingular (More info?)

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <ef718c89.0411172128.54ddb1b9@posting.google.com> on 17 Nov 2004 21:28:40
-0800, bret.schuhmacher@aspect.com (Bret Schuhmacher) wrote:

>What technology does Cingular use and have they released a developer's
>kit for it? I figured they'd have a java API released (like all the
>other vendors), but I cannot find one. There's NO talk on the
>Cingular developer's website - I asked there first :-(.

<http://www.911dispatch.com/911_file/tech_choices.html&g...;

Phase II Wireless E911 Technology Choices

As of May 2003, here are the methods being used by the largest wireless
carriers to provide Phase II service:

Carrier Network
Technology Phase II Technology Type
T-Mobile GSM E-OTD* network
Nextel iDEN A-GPS handset
Cingular TDMA-GSM E-OTD* network
AT&T Wireless TDMA-GSM E-OTD* network
Verizon CDMA A-GPS/AFLT handset
Sprint CDMA A-GPS/AFLT handset

Both Cingular and AT&T Wireless are phasing out their TDMA networks.

* In Oct. 2002 Cingular and AT&T Wireless notified the FCC that it was
halting E-OTD development because they were uncertaint that
the technique could meet the accuracy requirement by the Commission's
deadline. In March 2003 T-Mobile also told the FCC
it would stop deployment of E-OTD gear. The carriers said they would test
U-TDOA technology to provide Phase II service.

<http://www.phonescoop.com/news/item.php?n=404&gt;

Cingular Switches to U-TDOA for E-911 Positioning

Date Posted: Dec 17, 2002, 12:25 AM Source: Wireless Week

Cingular has decided to switch technologies for meeting the FCC's
E-911 mandate for locating 911 callers. Cingular has told the FCC
that after completing successful field trials involving
TruePosition's network-based U-TDOA technology, it was moving away
from E-OTD, which so far has failed accuracy tests, resulting in
delays and financial penalties. Cingular in October suspended
shipments of E-OTD gear and began testing TruePosition's solution.

<http://www.trueposition.com/news_03.10.03_cingulargsm.p...;

TruePosition and Cingular Sign National Multi-Year Agreement For GSM
Location Solution

TruePosition's U-TDOA Location Solution Provides High Accuracy For
Anyphone, Anywhere

KING OF PRUSSIA, Pa. and ATLANTA, Ga., March 10, 2003

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular&gt;
!