OBject EXchange

Abstract: The authoritative guide to Bluetooth! From two contributors to the Bluetooth specification!For users, the new Bluetooth wireless standard will cut through the complexity of wireless communications, enabling devices to communicate seamlessly. Bluetooth Revealed offers the first insider's view of the Bluetooth standards: crucial information and insight professionals need to start implementing Bluetooth solutions -- now. Written by leaders of the Bluetooth community, it presents the entire specification in unprecedented depth: its goals, scope, structure, interrelationships, and applications. Coverage includes: Design challenges: 2.4 GHz spectrum characteristics, power consumption, global standardization, and other key issues Usage models: cordless computing, advanced headsets, file transfer/sync, dial-up networking, conferencing, hidden computing, and more The entire Bluetooth protocol stack: radio, baseband, and software layers; hardware and interfaces; and Link Manager and Logical Link Control and Adaptation Protocol (L2CAP) Bluetooth profiles: generic, telephony, networking, serial, and object exchangeBluetooth Revealed previews Bluetooth's future, including next-generation vertical and horizontal applications, and introduces today's resources for Bluetooth development, including silicon and developer's kits, as well as legacy product enablers. If you're intending to build, deploy, or market Bluetooth solutions, start right here.

Abstract: We present protocol concepts for an extension of IP for mobility issues in Bluetooth networks. The protocol is called BLUEPAC IP, where BLUEPAC stands for "BLUEtooth Public ACcess". "Public access" means access to various kinds of information in public areas, e.g. airplane, train, hotel room, department store, museum. Bluetooth will reside in low-cost chips that provide wireless communication up to OSI Layer 2. By the end of this year many mobile devices, e.g. notebooks, PDAs, cell phones, will contain Bluetooth chips as a cable replacement. But Bluetooth is move powerful: with a suitable network protocol that inherits all aspects of IP, it will be possible to provide IP services over Bluetooth. BLUEPAC IP takes IP as a basis and additionally includes functionalities of mobile IP and cellular IP for local IP address assignment, routing issues and handoff support.

Abstract: In 1998, five major companies (Ericsson, Nokia, IBM, Toshiba and Intel) formed a group to create a license-free technology for universal wireless connectivity in the handheld market. The result is Bluetooth, a technology named after a 10th-Century king who brought warring Viking tribes under a common rule. The Bluetooth specifications (currently in version 1.1) define a radiofrequency (RF) wireless communication interface and the associated set of communication protocols and usage profiles. The link speed, communication range and transmission power level for Bluetooth were chosen to support low-cost, power-efficient, single-chip implementations of the current technology. In fact, Bluetooth is the first attempt at making a single-chip radio that can operate in the 2.4-GHz ISM (industrial, scientific and medical) RF band. While most early Bluetooth solutions are dual-chip, vendors have recently announced single-chip versions as well. In this overview of the technology, I first describe the lower layers of the Bluetooth protocol stack. I also briefly describe its service discovery protocol and, finally, how the layers of the protocol stack fit together from an application's point of view.

Abstract: From the Book: Preface The convergence of computing and communications has been predicted for many years. Today's explosion of a myriad of new types of personal computing and communications devices?notebook computers, personal digital assistants, "smart" phones, two-way pagers, digital cameras and so on?has resulted in new ways for people to communicate and gain access to data. The advent of this pervasive computing, especially via wireless communications, enables these devices to be used in new settings: not only can people make voice calls from their automobile using a mobile phone, but also they can access the World Wide Web from a wireless notebook or handheld computer while at the airport or a shopping mall. We are rapidly moving toward a world where computing and communications become ubiquitous?not only at work but also in the home, in public places and in personal surroundings. Until recently, enabling all of these devices to communicate with each other has been cumbersome, often involving the use of special cables to connect the devices together along with device-specific software that might use proprietary protocols. To exchange information among all of her personal devices, a person might need to carry as many cables as devices and still lack assurance that all the devices could interconnect. The inability to share information among devices or the difficulty in doing so limits their usefulness. The Bluetooth technology enables devices to communicate seamlessly without wires. While Bluetooth wireless communication is first and foremost a means for cable replacement, it also enables many new applications?the use of a single mobile telephone as a cellular phone, cordless phone or intercom and the use of a notebook computer as a speakerphone, just to name two. The Bluetooth Special Interest Group (SIG) was formed in early 1998 by Ericsson, Intel, IBM, Nokia and Toshiba to develop an open specification for globally available short-range wireless radio frequency communications. The SIG has published a specification for the Bluetooth radio and baseband along with a set of communication protocols comprising a software stack used with the Bluetooth radio hardware. The Bluetooth radio module design is optimized for very low power consumption, low cost, small footprint and use anywhere in the world. In addition to the core specification, the SIG has also published Bluetooth profiles that describe how to use the software protocols such that interoperability among all kinds of devices can be achieved, regardless of who manufactures these devices. Version 1.0 of the specification was published in July 1999. Today the Bluetooth Special Interest Group consists of nine promoter companies (joining the five founding companies noted above in the SIG's core group are 3Com, Lucent, Microsoft and Motorola) and well over 1,800 adopter companies from around the world, representing a diverse set of industries. The specification and profiles continue to evolve as the SIG develops new ways to use the Bluetooth technology. The first products with Bluetooth wireless communications arrived in 2000 led by development tools, mobile telephones, audio headsets, notebook computers, handheld computers and network access points. A great deal of interest, talent and energy has marshaled around this exciting new technology. Until now most of the information available about Bluetooth wireless communications has been from the SIG's official web site (bluetooth) or from brief press articles or newsletters. This book aims to be at once authoritative and accessible. Besides discussing background, history and potential future developments, Bluetooth Revealed: The Insider's Guide to an Open Specification for Global Wireless Communications delivers practical explanations of the specification by people who helped to develop it. It is a broad discussion of the topic, containing information that should be of value to industry practitioners, professionals, students and any others who are interested in this topic. No matter what your particular interest is, Bluetooth Revealed is intended to give you the information you need to become a "Bluetooth Insider."