as captioned

應該間間都有.

但係唔見有任何一間carrier有呢項增值服務既?
理應係要收費的, 真奇怪~

Is there any evidence that this service is already set default for all of its customer?

I meant the AGPS service by using the carrier's base-stations to position,
not those to download the satellite's tracks via HSDPA or GRPS althought this is another way that AGPS can help, but AGPS of this kind has no relation to the carrier.

[ 本帖最後由 yalphak 於 2010-4-30 10:47 編輯 ]

我都留意左好耐, 應該冇一間有提供

C Hing,
I've tried using ASUS P835 with CSL (APN:cslp2) or 3HK (APN:ipc.
three.com.hk) using google map, after download the AGPS tracking
data, the position mark was moving along with the MTR stations
during my travel on the MTR coach from Choi Hung to ShamShuiPo.
Of course the accuracy was poor, but I know it was travelling
along the MTR route (not track).
Hope this could help.

Thanks for your sharing C-Hing.

Would that because some stations of kung tong lines are outdoor and the position is actually received from the satellite?

Also, download the tracking data is nothing to do with getting the base-stations' position.

Any folks will make a test or evidence in further?

[ 本帖最後由 yalphak 於 2010-4-30 19:32 編輯 ]

了解不少，學到不少。呵呵。

我都唔知道有什麼服務~~香港有好多間~

服務都好~AGPS~都算OK~