View Single Post
  #5 (permalink)  
Old 05-16-2009, 08:32 PM
Eric Jacobsen
Guest
 
Posts: n/a
Default Re: bt and wlan modulation and pulse shaping?

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
Reply With Quote