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`INTELLIGENT
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`NETWORKING
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`GERRY CHRISTENSEN
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`PAUL G. FLORACK
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`ROBERT DUNCAN
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`Data
`
`Library of Congress Cataloging-ill-Publication
`Christensen, Gerald.
`Wireless intelligent networking I Gerald Christensen, Paul G. Florack, Robert Duncan.
`p. ern. -
`(Arrech House mobile communications
`library)
`Includes bibliographical references and index.
`ISBN 1-58053-084-2 (alk. paper)
`1. Wireless communication
`systems.
`system 7. 1. Tide. II. Series.
`
`2. Mobile communication systems. 3. Signaling
`
`TK5103.2.C459
`621.382' l-de21
`
`2000
`
`00-064276
`CIP
`
`British Library Cataloguing in Publication Data
`Christensen, Gerald
`Wireless intelligent networking.
`communications
`library)
`systems 2. Signaling system 7
`1. Wireless communication
`I. Title II. Floraek, Paul G. III. Duncan, Robert
`621.3'8456
`
`(Arrech House mobile
`
`-
`
`ISBN 1-58053-084-2
`
`Cover design by Igor Valdman
`
`© 2001 ARTECH HOUSE, INC.
`68; Canton Street
`Norwood, MA 02062
`
`All rights reserved. Printed and bound in the United States of America. No part of this book
`may be reproduced or utilized in any form or by any means, electronic or mechanical,
`including photocopying,
`recording, or by any information storage and retrieval system,
`without permission in writing from the publisher.
`All terms mentioned in this book that are known to be trademarks or service marks have
`been appropriately
`capitalized. Artech House
`cannot
`attest
`to the accuracy of
`this
`information. Use of a term in this book should not be regarded as affecting the validity of
`any trademark or service mark.
`
`International Standard Book Number: 1-58053-084-2
`Library of Congress Catalog Card Number: 00-064276
`
`10987654321
`
`2/3
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`DOJ EX. 1022
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`
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`Wireless
`
`Intelligent Networking
`
`264
`
`j
`
`PSAP
`
`Call delivery
`to PSAP
`
`Figure 8.29 Architecture for wireless emergency services.
`
`PSAP that serves the area from which the call was placed. The
`appropriate
`MSC then sets-up the call
`through
`the public switched
`telephone
`network
`(PSTN). The PSTN routes
`the call that ultimately
`arrives at its termination
`point at the PSAP. Upon receiving the call, PSAP premise equipment
`inter-
`a cross-reference of
`rogates the ALI database. The ALI database,
`containing
`cell/sector data to descriptive data such as street address,
`landmark, or any
`other identifying
`information,
`returns a response
`to the PSAP premise:
`equipment
`that contains a description of (he caller's location. Upon receiving
`the response
`from the ALl,
`the PSAP premise
`equipment
`synchronizes
`the
`location information with the incoming emergency call, displaying the loca-
`rion information
`along with the caller's MDN to the PSAP operator who
`answers the call.
`This method meets phase I of the FCC ruling, which states the wireless
`carriers must provide at least cell site/sector level of position accuracy. While
`this method
`allows for routing to the appropriate
`PSAP and provides
`rela-
`tively accurate position information,
`this architecture is the foundation for
`greatly improved mobile positioning for emergency services. Work is under-
`way within standards to establish interfaces to obtain much more precise
`location information
`from network, handset based, andlor hybrid PDE.
`
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