Transcript March 2001 doc.: IEEE 802.15-01/185r0 IEEE 802.15.1 WPAN™ “Standardization” of Bluetooth™ Tom Siep Member Group Technical Staff Texas Instruments WPAN is a trademark of the IEEE Bluetooth is.

March 2001
doc.: IEEE 802.15-01/185r0
IEEE 802.15.1 WPAN™
“Standardization” of Bluetooth™
Tom Siep
Member Group Technical Staff
Texas Instruments
WPAN is a trademark of the IEEE
Bluetooth is a trademark Telefonaktiebolaget L M Ericsson, Sweden
Submission
Slide 1
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Overview
• 802.15.1 Status
• Creating the Draft Standard
– Architecture of WPANs
– WPANs vs. WLANs
– 802.15.1 LLC SAPs
– SDL
• Future IEEE/Bluetooth collaboration
Submission
Slide 2
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Project 802.15.1 Status
• Presented to Working Group and then IEEE 802
Executive Committee September00
• Delayed for Bluetooth V1.1 publication
• Confirmation Letter Ballot started 9Feb01, ended
11Mar01: PASSED, 46/4/1 or 92% affirmation
• Comment Resolution at March01 IEEE meeting in
Hilton Head, SC.: all comments processed
• Next step: editing; 10 day confirmation ballot
~2April01
• LAN/MAN 802.15 Sponsor Ballot(s) during the
Summer or Fall
• RevCom will submit Final Draft Std for approval
upon successful completion of the Sponsor Ballot
Submission
Slide 3
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
The Process of Creating an IEEE Standard
Project
Authorization
Establish
Criteria for
Standard
Perpare
Draft for
Circulation
Make
Changes to
Obtain WG
Appoval
WG
Letter
Ballot
WG
Reviews
Returned
Ballots
Yes
Yes
WG
Confirmation
Letter Ballot
Resolvable
Negatives?
No
Technical
Changes?
No
Sponsor
Ballot
New
Negative No
Votes?
Proceed to
Standards Board
Approval
Yes
You are here
Submission
Slide 4
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Bluetooth Specification (SIG version)
Applications
Other
TCS
RFCOMM
SDP
Data
L2CAP
Audio
Link Manager
Baseband
RF
Submission
Slide 5
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Bluetooth Specification (IEEE version)
Submission
Slide 6
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
IEEE Project 802 Standards
x.400 and X.500 Email
Transport Control Protocol (TCP)
Internet Protocol (IP)
Hardware
Software
Submission
Slide 7
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
More Detail of IEEE P802 Structure
1) Logical Link Control
SAP
LLC
4) Medium Access
Control
Management
SAP
MAC
MAC Mgmt
SAP
SAP
2) Medium Access Control
Station
Mgmt
SAP
PHY Mgmt
PHY
SAP
3) PHYsical Layer
5) PHYsical Layer Management
Service Access Points
Submission
Slide 8
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
How Does That Relate to Bluetooth?
Submission
Slide 9
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Constructing the Draft
802.15.1
7
PHYsical Layer
1
7
Overview
Radio
2
Medium Access Control
4
Acronyms
5
General
Description
8
Submission
Timers
E
Baseband
9
PICS
Proforma
MAC
Formal
Definition
B
Link
Manager
Protocol
Optional
Paging
Scheme
F
Test Mode
10
L2CAP
H
6
WPAN
Architecture
Generic
Access
Profile
A
8, 9, 10, 11
Definitions
Service
Access
Points
C
D
References
3
11
11
Bibliography
HCI
Slide 10
G
Config.
MSCs
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
WPAN Architecture
• Wireless personal area networks are different than
WLANs in several functional areas:
– Control of the media
– Range
– Power
– Number of participants
– Ownership of devices
– Nature of devices
– Lifetime of network
– Relative cost
• These differences are a result of the topological
differences between the two types
Submission
Slide 11
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Topologies: Stars, Rings, Trees
WPANs
Token Ring
WLANs
Submission
Slide 12
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
WLANs verses WPANs
(WARNING:gross simplifications)
• WLAN is outwardly looking
–
–
–
–
Interacts with wired infrastructure (LANs)
Network timeframe hours to days
Portable devices
“Wires are expensive”
• WPAN is inwardly looking
–
–
–
–
Submission
Interacts with personal objects
Network timeframe seconds to hours
Highly mobile devices
“Wires get in the way”
Slide 13
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
WPAN frames
Submission
Slide 14
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
WLAN Frames
Submission
Slide 15
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
802.15.1 SAPs (1 of 4)
• MA-UNITDATA request (
source_address,
destination_address,
routing_information,
data,
priority,
service_class
)
Submission
Slide 16
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
802.15.1 SAPs (2 of 4)
• MA-UNITDATA indication (
source_address,
destination_address,
routing_information,
data,
reception_status,
priority,
service_class
)
Submission
Slide 17
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
802.15.1 SAPs (3 of 4)
• MA-UNITDATA-STATUS indication (
source_address,
destination_address,
transmission_status,
provided_priority,
provided_service_class
)
Submission
Slide 18
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
802.15.1 SAPs (4 of 4)
HCI SAP
LLC SAP
L2CAP SAP
SCO SAP
SAP Interface
Host
Controller
MAC
L2CAP
Link Manager
LMP
Baseband
SCO Link
Asy nchronous Connection-Less (ACL) Link
PHY
RF
Air Interface
Submission
Slide 19
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
802.15.1 SDL
• Derived a picture of what the structure of the
BT spec is in IEEE terms.
• Helped to uncover holes in existing spec
• Enables bench testing and validating of
components
• Provides a common language between the
SIG and the IEEE
• Generation of TTCN from SDL is possible
Submission
Slide 20
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Future Bluetooth/IEEE Collaboration
• IEEE 802.15 continues to work with the
Bluetooth Special Interest Group
– Submission of Errata
– “Early” updates of the Spec from the SIG – current
version of Draft includes v1.1 Bluetooth
Specification
– Plans for future revisions of
• Version 1.x
• Future versions
• There now is an overlap of “ownership” of the
two documents.
Submission
Slide 21
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Backup Slides
(likely not shown)
Submission
Slide 22
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
IEEE: An Overview
• Established in 1884 (AIEE & IRE)
• Membership was 360,00 Dec99;
66% USA & 33% Non-USA
• Produces 30 percent of the world's published
literature in electrical engineering, computers and
control technology,
• Holds annually more than 300 major conferences
• Has more than 800 active standards with 700
under development.
Submission
Slide 23
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
IEEE P802 LAN/MAN
• IEEE Project 802 Local and Metropolitan Area Network
Standards Committee
• Accredited by ANSI, Sponsored by IEEE Computer
Society
– Ethernet, Token Ring, Wireless, Cable Modem Standards
– Bridging, VLAN, Security Standards
• Meets three times per year
(400 individuals, 15% non-US)
• Develops equivalent IEC/ISO JTC 1 standards
JTC 1 series of equivalent standards are ISO 8802-nnn
• IEEE URLs
– 802 http://www.ieee802.org/
– 802.15 http://www.ieee802.org/15/
Submission
Slide 24
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
IEEE 802 Standards Principals
• Due Process through established rules and
procedures
• Consensus highly desired, near unanimity is
generally the rule
• Openness where all individuals, world-wide,
have access to the process
• Balance maintained by having balloting group
include both developers and users
• Right to Appeal both procedural and technical
issues at any time during the process
Submission
Slide 25
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Scatternet
Submission
Slide 26
Tom Siep, Texas Instruments
March 2001
doc.: IEEE 802.15-01/185r0
Hidden Node Problem
Submission
Slide 27
Tom Siep, Texas Instruments