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- 09-16-2003, 11:01 PM #1Andrew ShepherdGuest
For the vast majority of the group, this may be of very limited
utility, interest, or understanding. But I know that there are at
least a few regulars out there who might appreciate this. After much
toil & trouble, including more Boolean IF operands than I care to
mention, I have authored an Excel spreadsheet algorithm that
synthesizes the CDMA mobile channel selection hash function according
to MIN & number of deployed channels in the network CDMA channel list.
Please take a look...
http://people.ku.edu/~cinema/wireless/hash_function.xls
Andrew
--
Andrew Shepherd
[email protected]
[email protected]
http://www.ku.edu/home/cinema/
› See More: CDMA hash function posted
- 09-17-2003, 04:37 AM #2SprintposterGuest
Re: CDMA hash function posted
Whats the purpose of that? To hack into cell calls?
- 09-17-2003, 07:59 AM #3Guest
Re: CDMA hash function posted
On 17 Sep 2003 10:37:04 GMT, [email protected] (Sprintposter)
wrote:
>Whats the purpose of that? To hack into cell calls?
No, it's to calculate which carrier frequency in a multi-carrier cell
you'll get initially assigned to (assuming that some carriers aren't
reserved for cdma2000 subscribers only).
- 09-17-2003, 09:45 AM #4PHil_RealGuest
Re: CDMA hash function posted
In article <[email protected]>,
[email protected] wrote:
> On 17 Sep 2003 10:37:04 GMT, [email protected] (Sprintposter)
> wrote:
>
> >Whats the purpose of that? To hack into cell calls?
>
> No, it's to calculate which carrier frequency in a multi-carrier cell
> you'll get initially assigned to (assuming that some carriers aren't
> reserved for cdma2000 subscribers only).
And one needs that info because?
- 09-17-2003, 06:36 PM #5skrubolGuest
Re: CDMA hash function posted
From his disclaimer, most likely if you had use for the info, you'd
know.
--
Posted at SprintUsers.com - Your place for everything Sprint PCS
Free wireless access @ www.SprintUsers.com/wap
- 09-18-2003, 12:59 AM #6MseaGuest
Re: CDMA hash function posted
Andrew Shepherd wrote:
> For the vast majority of the group, this may be of very limited
> utility, interest, or understanding. But I know that there are at
> least a few regulars out there who might appreciate this. After much
> toil & trouble, including more Boolean IF operands than I care to
> mention, I have authored an Excel spreadsheet algorithm that
> synthesizes the CDMA mobile channel selection hash function according
> to MIN & number of deployed channels in the network CDMA channel list.
How about according to ESN?
FYI, I hope you didn't toil too terribly much....there are other Excel
spreadsheets floating around on the Internet that do the same
calculation. Of course, the other ones I've seen effectively hide the
calculations... so yours is more educational I suppose.
- 09-18-2003, 03:59 AM #7SprintposterGuest
Re: CDMA hash function posted
> From his disclaimer, most likely
> if you had use for the info, you'd know.
Hacking into cell phone calls.
- 09-18-2003, 07:39 AM #8Guest
Re: CDMA hash function posted
On 18 Sep 2003 09:59:22 GMT, [email protected] (Sprintposter)
wrote:
>> From his disclaimer, most likely
>> if you had use for the info, you'd know.
>
>Hacking into cell phone calls.
Nope.
- 09-18-2003, 08:52 AM #9HopperGuest
Re: CDMA hash function posted
"Msea" <[email protected]> wrote in message
news:BJcab.376666$Oz4.157244@rwcrnsc54...
> How about according to ESN?
> FYI, I hope you didn't toil too terribly much....there are other Excel
> spreadsheets floating around on the Internet that do the same
> calculation. Of course, the other ones I've seen effectively hide the
> calculations... so yours is more educational I suppose.
There is the possibility of it being an academic exercise as well.
- 09-18-2003, 08:53 AM #10PHil_RealGuest
Re: CDMA hash function posted
In article <dFjab.500007$o%2.221793@sccrnsc02>,
"Hopper" <[email protected]> wrote:
>
> There is the possibility of it being an academic exercise as well.
Nice try.
- 09-18-2003, 08:54 AM #11PHil_RealGuest
Re: CDMA hash function posted
In article <[email protected]>,
[email protected] wrote:
> On 18 Sep 2003 09:59:22 GMT, [email protected] (Sprintposter)
> wrote:
>
> >> From his disclaimer, most likely
> >> if you had use for the info, you'd know.
> >
> >Hacking into cell phone calls.
>
> Nope.
yup
- 09-18-2003, 01:17 PM #12Andrew ShepherdGuest
Re: CDMA hash function posted
PHil_Real <[email protected]> wrote in message news:<[email protected]>...
> In article <[email protected]>,
> [email protected] wrote:
>
> > On 17 Sep 2003 10:37:04 GMT, [email protected] (Sprintposter)
> > wrote:
> >
> > >Whats the purpose of that? To hack into cell calls?
> >
> > No, it's to calculate which carrier frequency in a multi-carrier cell
> > you'll get initially assigned to (assuming that some carriers aren't
> > reserved for cdma2000 subscribers only).
>
> And one needs that info because?
One does not *need* that info.
If one can simply be content as a passive user, one who is completely
oblivious to the underlying functions that enable the success of
wireless communications, one who is thoroughly flummoxed when one's
wireless link fails for any reason, for whom wireless is apathetically
expected to be an omnipresent & transparent utility like running
water, for whom wireless is just "a phone," one does not *need* that
info.
Or one can elect to be an active user, one who curiously &
auto-didactically pursues greater understanding of the myriad
technologies that make wireless communications possible, one who is
equally appreciative of the knowledge gained when a wireless link
transparently succeeds or spectacularly fails, for whom wireless
represents a philosophy of learning in general. One may still not
*need* that info. But one can certainly *appreciate* the
enlightenment.
Thus, one can choose to be smarter & better informed than his/her
wireless phone & wireless network. Or one can choose not to. I
simply provide a resource for the former. The choice is yours...
Andrew
--
Andrew Shepherd
[email protected]
[email protected]
http://www.ku.edu/home/cinema/
- 09-18-2003, 01:31 PM #13Andrew ShepherdGuest
Re: CDMA hash function posted
PHil_Real <[email protected]> wrote in message news:<[email protected]>...
> In article <[email protected]>,
> [email protected] wrote:
>
> > On 18 Sep 2003 09:59:22 GMT, [email protected] (Sprintposter)
> > wrote:
> >
> > >> From his disclaimer, most likely
> > >> if you had use for the info, you'd know.
> > >
> > >Hacking into cell phone calls.
> >
> > Nope.
>
> yup
An emphatic nope. Straight from the horse's mouth. Directly from the
author of the IS-95 hash function emulator in question.
To reiterate the function of my Excel algorithm, and I could not have
expressed it myself more accurately or succinctly than did Craig Paul:
"...it's to calculate which carrier frequency in a multi-carrier cell
you'll get initially assigned to (assuming that some carriers aren't
reserved for cdma2000 subscribers only)."
PHil_Real, for someone who claims not to understand the utility or
intent of my exceedingly benign resource, you certainly seem to be
repeatedly asserting "definitive" answers.
Andrew
--
Andrew Shepherd
[email protected]
[email protected]
http://www.ku.edu/home/cinema/
- 09-18-2003, 01:52 PM #14P.Guest
Re: CDMA hash function posted
In article <[email protected]>,
[email protected] (Andrew Shepherd) wrote:
> PHil_Real <[email protected]> wrote in message
> news:<[email protected]>...
> > In article <[email protected]>,
> > [email protected] wrote:
> >
> > > On 18 Sep 2003 09:59:22 GMT, [email protected] (Sprintposter)
> > > wrote:
> > >
> > > >> From his disclaimer, most likely
> > > >> if you had use for the info, you'd know.
> > > >
> > > >Hacking into cell phone calls.
> > >
> > > Nope.
> >
> > yup
>
> An emphatic nope. Straight from the horse's mouth. Directly from the
> author of the IS-95 hash function emulator in question.
>
> To reiterate the function of my Excel algorithm, and I could not have
> expressed it myself more accurately or succinctly than did Craig Paul:
>
> "...it's to calculate which carrier frequency in a multi-carrier cell
> you'll get initially assigned to (assuming that some carriers aren't
> reserved for cdma2000 subscribers only)."
AGAIN. You need to know an exact frequency because?
To hack into phone calls.
- 09-18-2003, 01:53 PM #15P.Guest
Re: CDMA hash function posted
In article <[email protected]>,
[email protected] (Andrew Shepherd) wrote:
> PHil_Real <[email protected]> wrote in message
> news:<[email protected]>...
> > In article <[email protected]>,
> > [email protected] wrote:
> >
> > > On 17 Sep 2003 10:37:04 GMT, [email protected] (Sprintposter)
> > > wrote:
> > >
> > > >Whats the purpose of that? To hack into cell calls?
> > >
> > > No, it's to calculate which carrier frequency in a multi-carrier cell
> > > you'll get initially assigned to (assuming that some carriers aren't
> > > reserved for cdma2000 subscribers only).
> >
> > And one needs that info because?
>
> One does not *need* that info.
>
> If one can simply be content as a passive user, one who is completely
> oblivious to the underlying functions that enable the success of
> wireless communications, one who is thoroughly flummoxed when one's
> wireless link fails for any reason, for whom wireless is apathetically
> expected to be an omnipresent & transparent utility like running
> water, for whom wireless is just "a phone," one does not *need* that
> info.
>
> Or one can elect to be an active user, one who curiously &
> auto-didactically pursues greater understanding of the myriad
> technologies that make wireless communications possible, one who is
> equally appreciative of the knowledge gained when a wireless link
> transparently succeeds or spectacularly fails, for whom wireless
> represents a philosophy of learning in general. One may still not
> *need* that info. But one can certainly *appreciate* the
> enlightenment.
>
> Thus, one can choose to be smarter & better informed than his/her
> wireless phone & wireless network. Or one can choose not to. I
> simply provide a resource for the former. The choice is yours...
Translation: you need to know the exact frequency to hack into cell
phone calls.
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