FPGA Central

Hi all,

I am working on the coexistence study between BT and WLAN. Anyone know
where are the spec on modulation and pulse shaping for BT and 802.11 a, b
g WLAN?


cfy30

On May 16, 10:49*am, "cfy30" <cf...@yahoo.com> wrote:
> Hi all,
>
> I am working on the coexistence study between BT and WLAN. Anyone knows
> where are the spec on modulation and pulse shaping for BT and 802.11 a, b,
> g WLAN?
>
> cfy30

I don't know what BT is but for 802.11 standards, you can either read
about
it on good ole wikipedia or read the actual standards. If you don't
know yet,
they are available for free.

http://en.wikipedia.org/wiki/802.11
http://ieee802.org/11/

On Sat, 16 May 2009 08:03:27 -0700 (PDT), julius <juliusk@gmail.com>
wrote:

>On May 16, 10:49*am, "cfy30" <cf...@yahoo.com> wrote:
>> Hi all,
>>
>> I am working on the coexistence study between BT and WLAN. Anyone knows
>> where are the spec on modulation and pulse shaping for BT and 802.11 a, b,
>> g WLAN?
>>
>> cfy30
>
>I don't know what BT is but for 802.11 standards, you can either read
>about
>it on good ole wikipedia or read the actual standards. If you don't
>know yet,
>they are available for free.
>
>http://en.wikipedia.org/wiki/802.11
>http://ieee802.org/11/

Or here:

http://standards.ieee.org/getieee802/portfolio.html

BT is 802.15.

The waveforms aren't even close to compatible, so the general means of
sensing each other for avoidance is just energy detection. Since the
ISM band is unlicensed energy detection is more general, anyway, since
an interferer may be a cordless phone or any other device compliant to
the ISM rules.

Eric Jacobsen
Minister of Algorithms
Abineau Communications
http://www.ericjacobsen.org

Blog: http://www.dsprelated.com/blogs-1/hf/Eric_Jacobsen.php

Thanks julius and Eric.

Let me explain a bit more, what I am looking for are the specs on th
modulator and pulse shaping filter for the two standards. Are there spec
describing the modulation and pulse shaping requirement? Like in WCDMA
3GPP TS 25.101 describe the pulse shaping filter and 3GPP TS 25.21
describe the modulator? If anyone can point me directly to the specs, it i
greatly appreciated.


cfy30


>On Sat, 16 May 2009 08:03:27 -0700 (PDT), julius <juliusk@gmail.com>
>wrote:
>
>>On May 16, 10:49�am, "cfy30" <cf...@yahoo.com> wrote:
>>> Hi all,
>>>
>>> I am working on the coexistence study between BT and WLAN. Anyon
knows
>>> where are the spec on modulation and pulse shaping for BT and 802.1
a, b,
>>> g WLAN?
>>>
>>> cfy30
>>
>>I don't know what BT is but for 802.11 standards, you can either read
>>about
>>it on good ole wikipedia or read the actual standards. If you don't
>>know yet,
>>they are available for free.
>>
>>http://en.wikipedia.org/wiki/802.11
>>http://ieee802.org/11/
>
>Or here:
>
>http://standards.ieee.org/getieee802/portfolio.html
>
>BT is 802.15.
>
>The waveforms aren't even close to compatible, so the general means of
>sensing each other for avoidance is just energy detection. Since the
>ISM band is unlicensed energy detection is more general, anyway, since
>an interferer may be a cordless phone or any other device compliant to
>the ISM rules.
>
>Eric Jacobsen
>Minister of Algorithms
>Abineau Communications
>http://www.ericjacobsen.org
>
>Blog: http://www.dsprelated.com/blogs-1/hf/Eric_Jacobsen.php
>

The links Julius and I provided will take you to the standard
documents that describe the air interface.

On Sat, 16 May 2009 13:09:16 -0500, "cfy30" <cfy30@yahoo.com> wrote:

>Thanks julius and Eric.
>
>Let me explain a bit more, what I am looking for are the specs on the
>modulator and pulse shaping filter for the two standards. Are there specs
>describing the modulation and pulse shaping requirement? Like in WCDMA,
>3GPP TS 25.101 describe the pulse shaping filter and 3GPP TS 25.213
>describe the modulator? If anyone can point me directly to the specs, it is
>greatly appreciated.
>
>
>cfy30
>
>
>>On Sat, 16 May 2009 08:03:27 -0700 (PDT), julius <juliusk@gmail.com>
>>wrote:
>>
>>>On May 16, 10:49�am, "cfy30" <cf...@yahoo.com> wrote:
>>>> Hi all,
>>>>
>>>> I am working on the coexistence study between BT and WLAN. Anyone
>knows
>>>> where are the spec on modulation and pulse shaping for BT and 802.11
>a, b,
>>>> g WLAN?
>>>>
>>>> cfy30
>>>
>>>I don't know what BT is but for 802.11 standards, you can either read
>>>about
>>>it on good ole wikipedia or read the actual standards. If you don't
>>>know yet,
>>>they are available for free.
>>>
>>>http://en.wikipedia.org/wiki/802.11
>>>http://ieee802.org/11/
>>
>>Or here:
>>
>>http://standards.ieee.org/getieee802/portfolio.html
>>
>>BT is 802.15.
>>
>>The waveforms aren't even close to compatible, so the general means of
>>sensing each other for avoidance is just energy detection. Since the
>>ISM band is unlicensed energy detection is more general, anyway, since
>>an interferer may be a cordless phone or any other device compliant to
>>the ISM rules.
>>
>>Eric Jacobsen
>>Minister of Algorithms
>>Abineau Communications
>>http://www.ericjacobsen.org
>>
>>Blog: http://www.dsprelated.com/blogs-1/hf/Eric_Jacobsen.php
>>
Eric Jacobsen
Minister of Algorithms
Abineau Communications
http://www.ericjacobsen.org

Blog: http://www.dsprelated.com/blogs-1/hf/Eric_Jacobsen.php