Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 1 Items for Discussion SCOPE OF THIS EFFORT CRITICAL DEFINITIONS REQUIREMENTS REQUIRED LEVEL OF INTEROPERABILITY –SPECTRUM –PHY –MAC SPECTRUM ALLOCATION

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 2 IEEE P802.11/5GSG Presentation for the First Meeting of the Joint Globalization Group Richard Kennedy Compaq Computer Corporation

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 3 CRITICAL DEFINITIONS COEXISTENCE INTEROPERABILITY CONVERGENCE INTERWORKING COMPATIBILITY/BACKWARD COMPATIBILITY COMPLIANCE COOPERATION/HARMONY SEAMLESS ROAMING/HANDOFF QoS SPECTRUM MAC/DLC LAYER PHY LAYER

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 4 COEXISTENCE Multiple wireless devices are said to “coexist” if they can be collocated without significantly impacting the performance of any of these devices [IEEE /088r2]. The ability of one system to perform a task in a given (shared) environment where other systems may or may not be using the same set of rules.

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 5 INTEROPERABILITY The ability of two systems to perform a given task using a single set of rules

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 6 Range of CONVERGENCE Objectives One Global Standard (1) –Based on a combined standard –Based on selecting one of the existing standards Bringing the three standards closer together; having a degree of interoperability (3) Being able to coexist (5) Status quo (99)

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 7 Degrees of CONVERGENCE Definition There are a range of convergence options listed below in decreasing desirability. One Global Standard with complete interoperability(1) Systems having a degree of interoperability (3) Systems having a degree of interworking typically involving the use of a translator. There are two other situations that represent no convergence. Being able to coexist (5) Being unable to coexist

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 8 Examples of CONVERGENCE Systems adhering to One Global Standard with complete interoperability that can be used anywhere in the world. Systems that interoperate but were designed to different standards. The user of each equipment type can communicate transparently with the other. Common: Two standards have common architecture, design, defn Interoperable: Two+ standards have a way of directly communicating together to perform a task

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 9 Examples of Standards CONVERGENCE Common: Two systems have common architecture, design, definition. Interoperable: Two+ systems have a way of directly communicating together to perform a task. Interworking: Two+ systems can exchange information thru a translating function and work together to perform a task. Data transfer: Two+ systems can exchange information thru a translating system to perform their respective tasks. For example HL2 and 11a can communicate via an ethernet backbone. This not considered to be convergence.

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 10 INTERWORKING The ability of two systems to perform a task given that each system implements a different set of rules. The means whereby terminals connected to a telecommunication network may communicate with terminals of another network. [IEC 1992] To express interactions between networks, between end systems, or between parts thereof, with the aim of providing a functional entity capable of supporting an end- to-end communication. The interactions required to provide a functional entity rely on functions and on the means to select these functions. [ITU-T I.510]

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 11 COMPATIBILITY and BACKWARD COMPATIBILITY

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 12 COMPLIANCE

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 13 COOPERATION and HARMONY

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 14 SEAMLESS ROAMING and HANDOFF

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 15 QUALITY of SERVICE

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 16 SPECTRUM

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 17 MAC/DLC LAYER

Doc.: IEEE /416r1 Submission November 2000 Richard Kennedy, Compaq Computer CorporationSlide 18 PHY LAYER