SSS Online NEWS
Number 2 -- May 25, 1998
Whats New at SSS and in the World of SS, RF and Wireless
[SSS Online Buzzes with Activity]
[What is BlueTooth?]
[Wireless LANS and Things]
[SSS Online NEWS -- Issue #1]
SSS is proud to bring you our Second SSS NEWS Page!
SSS Online Buzzes with Activity
Our Online Store is now Open!
There have been plenty of changes here at SSS Online in the
last month. We are continuing to try to improve our "look and feel" and
simplifiy your navigation around our site. We also are deeply involved with
a nearly complete re-vamp of our online advertising.
Our earlier "deal" with EDTN to "broker" online advertising for us did
not work out quite as well as planned. It seems that they had a major
personnel change near the top of their WEB advertising group that caused
a lot of ripples! Suffice it to say we are re-examining our working relationship
and are in the process of pulling down their ads from most pages of our
magazine.
Other things going on here include the continual addition of new content
and new / updated links to our pages. Last month alone we removed over 400
out-dated or useless links from our site. Linkbot 3.0 is a great help in this
activity, by the way! In the content area, we restored several earlier HTML
pages that are linked within our pages, that somehow, inadvertantly had gotten
deleted.
SSS has recently opened our online store. This "store" features several
interesting and useful "products." At this store you can purchase our "SSS
Online CD ROM," buy small amounts of RF/SS' consulting time and charge
your online SSS advertising. Please see our SSS
Online Store Page for more information.
The accomplishment of this Online purchasing ability and the ability to
take credit cards online, has been one of of our goals for a long, long time.
We have mentioned here several times that we wanted to be able to offer
our consulting services for credit card sale, so that many of you could
take advantage of our expertize and experience with a quick and easy,
purchase order-less (and without any messy contracts) -- now you can!
Spread Spectrum Scene Online magazine will continue to add
features and interesting / useful articles on our high tech subject area for
your viewing pleasure. We will also continue to add free software and FTP
files that are noteworthy and useful to a majority of our audience. If you have
any suggestions, criticisms or compaints, please don't hesitate to send us an email
(contact us here) or
leave a Comment if you would like to share your
thoughts, suggestions or ideas with us on how to improve SSS Online and thus
serve you better!
What is BlueTooth? -- I think this is a WINNER!
THE LATEST INDUSTRY NEWS IS: Ericsson, IBM, Intel, Nokia and Toshiba form
New Hardware / Software / Protocol Standards SIG
Industry leaders Ericsson, IBM, Intel, Nokia and Toshiba today unveiled their vision to
revolutionise wireless connectivity for personal and business mobile devices. Enabling seamless voice and data
transmission via wireless, short-range radio, this new technology will allow users to connect a wide range of devices easily
and quickly, without the need for cables, expanding communications capabilities for mobile computers, mobile phones and
other mobile devices.
The open specification for this innovative technology, is code-named "Bluetooth." It is being developed through the combined
contributions of the members of the Bluetooth Special Interest Group (SIG). The SIG was formed in early 1998 as a result of
the global commitment of the five founding companies.
By working together closely, the five companies have combined their individual
specialist expertise to create "Bluetooth." Ericsson contributed the
basic radio technology expertise; Toshiba and IBM are developing a common specification for
integrating "Bluetooth" technology into mobile devices; Intel is contributing
its advanced chip and software expertise and Nokia, contributes expertise in radio
technology and mobile handset software.
Other companies are being invited to support the core technology on a royalty-free
basis to ensure that "Bluetooth" can be implemented in many different devices.
Companies who have joined the Bluetooth program and committed to include the
technology in products include Motorola, Qualcomm, 3COM Palm, VLSI and Lucent
(see appendix I for additional company names).
"Bluetooth" utilises a short-range radio link to exchange information,
enabling effortless wireless connectivity between mobile phones, mobile PCs,
handheld computers and other peripherals. The radio will operate on the globally
available 2.45GHz ISM, allowing international travellers to use "Bluetooth"
-enabled equipment worldwide. The new initiative is modelled after other successful
industry standards such as PCI and AGP to deliver products that interoperate.
"Bluetooth" benefits
"Bluetooth" will eliminate the need for business travellers to purchase
or carry numerous, often proprietary cables by allowing
multiple devices to communicate with each other through a single port. Enabled
devices will not need to remain within line-of-sight, and can maintain an
uninterrupted connection when in motion, or even when placed in a pocket or briefcase.
"Bluetooth" technology will offer new ways in which a user can use personal
mobile devices, both for professional and personal use:
Users will be alerted to, and can respond to, incoming e-mail via their mobile phone, even while their mobile PC remains
in its carrying case. When the PC receives an e-mail message, an alert will sound on the mobile phone. It is then
possible to browse incoming e-mails immediately, reading the contents on the display of the mobile phone.
Users will be able to access the Internet via a completely wireless connection routed either through a mobile phone, or a
wired connection such as the PSTN, an ISDN line, or LAN.
Users will be able to send an 'instant postcard' by cordlessly connecting a camera to a mobile phone or any wire-bound
connection. Users could add comments to their snapshots using a mobile phone or mobile PC, and send them instantly
to recipients anywhere in the world.
Industry Adoption
"Bluetooth" technology adoption is expected to be widespread throughout the computer and telecommunications industry.
The move to implement "Bluetooth" is expected to grow the market for personal mobile devices.
Manufacturers will additionally benefit from the ability to replace multiple
connection ports with a single "Bluetooth" port, gaining potential
economies at production level. The group has defined favourable adoption terms,
including royalty-free availability of the specification.
To promote open access to the "Bluetooth" concept and communicate news
about its development in the future, the SIG today launched a website at:
www.bluetooth.com
Bluetooth Technology Highlights
- Based upon a small, high performance integrated
radio transceiver, each of which is allocated a unique 48-bit address
derived from the IEEE 802 standard.
- Operate in the unrestricted 2.45GHz ISM 'free band',
which is available globally although slight variation of location and width of band apply
- Range set at 10m to optimize for target market of mobile and business user
- Gross data rate 1Mbit/s, with second generation plans to increase to 2 Mbit/s
- One-to-one connections allow maximum data
transfer rate of 721 kbits/s (3 voice channels)
- Uses packet switching protocol based on
frequency hop scheme with 1600 hops/s to enable high performance in noisy radio
environments. The entire available frequency spectrum is used with 79 hops of
1Mhz bandwidth, analogous to the IEEE 802.11 standard
- Low power consumption drawing only
0.3mA in standby mode enables maximum performance longevity for battery
powered devices. During data transfer the maximum current drain is 30mA.
However during pauses or at lower data rates the drain will be lower
Technical Specifications
Receiver |
|
RX sensitivity |
-70dBm |
IP 3 |
-16dBm |
CP 1 dB |
-26dBm |
Double-sided IF bandwidth |
1.0MHz |
C/I co-channel (0.1% BER) |
11dB |
C/I 1MHz (0.1% BER) |
-8dB |
C/I 2MHz (0.1% BER) |
-40dB |
C/I AWGN (0.1% BER) |
18dB |
In-band image rejection |
20dB |
|
|
Transmitter |
|
TX power: |
|
|
0dBm |
|
-30 - +20dBm |
Modulation index (no ISI) |
0.28-0.35 |
TX carrier offset |
<75kHz |
Adjacent channel power |
(1MHz) -20dBm |
Out of band spuriouses |
50dB |
Power control requirements: optional range |
-30 - +20dB |
|
|
Frequency Sources |
|
Symbol timing accuracy |
20ppm |
L 500kHz |
-89dBc/Hz |
L 2MHz |
-121dBc/Hz |
Channel-switching time |
220µs |
TX/RX turnaround time |
220µs |
|
|
General |
|
Antenna diversity |
NA |
Operating environment when applicable |
IEEE802.11 |
|
|
SSS Online Comments and Thoughts / Suggestions
Well these "Big Guys" have finally done it -- they actually came up with a VERY GOOD IDEA!
I think this concept and the level of detailed thought put into it will result in a WINNER!
I sincerely wish this group Good Luck and I look forward to joining your SIG and
contributing in any way we can to your success!
Wireless LANS and Things -- Will a Real Market Ever Emerge?
ARTICLE COMING SOON!
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