WPC 2B L ZCourieriTimes RomanQ 10cpi EmphasizedNLQ 12cpi{ X@Apple postscriptHPLAIIP0.PRS&n P7hhhhm&P2R .8H'#|f,+Times RomanTimes Roman BolddHPLASIII.PRS&n P7,\,&PTimes RomanTimes Roman BoldHelveticaC&P6?xxx  =,x6X` X?ddd ?d6X@{ X@                      Ǐd-             "S^.Gf\\===\i.=.3\\\\\\\\\\==iii\zzzzzG\zppzfpzzpp=3=i\=\\Q\Q=\f33\3f\\\GG3fQz\QG@(@i=.============\3z\z\z\z\z\zQzQzQzQzQG3G3G3G3f\\\\ffffpQz\\\pQ\p\z\z\zQzQzQzQ\zQzQzQzQ\\\\\fG\G\G=G\\=z\p3p=p=p3fff\\zGzGzGfGfGfGfGp=p=ffffzpQpGpGN@.\\G\\\\\\17\7\73\\\==\\ff=\7toieeiooo.Ii2[-Kye1pe~eje~ńpsfpfzQsGwQ\Q=3QzffQz\Qpi\p\\sQQzpfppps=\pQpppp==\\\\\\\p=i\Q=x28tJHeadingChapter HeadingJ d  ) I. ׃  Right ParRight-Aligned Paragraph Numbers>a݅@  I.   X(# BibliogrphyBibliography݅X  (# SubheadingSubheading0\ E A.  2 v p k kc a8DocumentgDocument Style StyleXX` `  ` a4DocumentgDocument Style Style . a6DocumentgDocument Style Style GX  a5DocumentgDocument Style Style }X(# 2X  v   a2DocumentgDocument Style Style <o   ?  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A.   2y1a3TechnicalTechnical Document Style9Wg  2  1.   a4TechnicalTechnical Document Style8bv{ 2  a.   a1TechnicalTechnical Document StyleF!<  ?  I.   a7TechnicalTechnical Document Style(@D i) . 231d eha8TechnicalTechnical Document Style(D a) . Doc InitInitialize Document Stylez   0*0*0*  I. A. 1. a.(1)(a) i) a) I. 1. A. a.(1)(a) i) a)DocumentgPleadingHeader for Numbered Pleading PaperE!n    X X` hp x (#%'0*,.8135@8:d<d<+oodCCddddCod<d<$YYdCCddooCY%7777777777>>>1eOIIOC=OO%+OCbOO=OI=COOhOOC%%47%17171%777V7777%+77O77155<%%%n%%%%%%%%%%7O1O1O1O1O1bII1C1C1C1C1%%%%O7O7O7O7O7O7O7O7O7O7O1O7O7O7O7=7O1O1I1I1I1I1O7C1C1C1C1O7O7O7O7O7O7%7%7%%%7+%O7CC%C%CO7O7O7O7O7bOI%I%I%=+=+=+=+C%C%O7O7O7O7hOO7C1C1N'27%177777"SS7!TT7S!117n%%77l==n%1n!t>><<>>mBBs,>[N6-msTN[TTTH_<1CP?@ABCDEFGHIJKLMNOP,W a  # P7{P#September 1993`(#=doc: IEEE 802.1193/151     yxdddy #!  #d P7P#yxdddy   Submission1؃`(#51cnsv39h C. Rypinski LACE, Inc.#      W U- #xP7P#IEEE 802.11 ă 802 LAN Access Method for Wireless Physical Medium   yxn dddy #X~xP7XP#  R  DATE: ` ` D3 1, 4D   yxC dddjy  R  AUTHOR: ` ` Chandos A. Rypinski, ` `  Chief Technical Officer ` ` LACE, Inc.`&(#CTel: +01 415 389 6659 ` ` 655 Redwood Highway #340`(#CFax: +01 415 389 6746 ` ` Mill Valley, CA 94954 USA`(#@Em: rypinski@netcom.com  D yxdddy  PE  TITLE:` `  THE NECESSARY CONDITIONS FOR SUPPORT OF(#` ` ` CONNECTIONTYPE AND CONNECTIONLESS SERVICES  P ` ` ON WIRELESS LAN    yxaddd>y #Xx P7 bXP#  X  `  SUMMARY AND CONCLUSIONS From among the conclusions drawn and shown in the concluding section, some of the most important are as follows. X a)To provide competent connectiontype and segmented packet type services, it is necessary at setup time to reserve future capacity in the medium for following segment transfers.(# X b)The scheduling algorithm for capacity allotment must consider unreserved capacity available, priority, type, bandwidth, length and other descriptors of the requested service before enabling a segmented transfer.(# X e)An intelligent scheduler must be positioned at the intersection of the combined accesspoint data flow and the data from the interconnected isochronous and packet networks to have immediate access to the information necessary for its function. As part of the  Xm infrastructure, the vital scheduling function alone justifies and requires the presence of  XX an intelligent hub.(# X f)The need for reserved channel time or space precludes enabling stations to transmit except within constraints placed by a central control. Spontaneous, autonomous groups may not operate in this mode within the reliable coverage of the organized infrastructure.(# j)XThe provision of these services requires anticipation of the necessary information and control functions in the design of the MAC and PHY layers.(# %,''xx  X  XX   Њ `0 b  THE NECESSARY CONDITIONS FOR SUPPORT OF  X gCONNECTIONTYPE AND CONNECTIONLESS SERVICES ON WIRELESS LAN ă  XK    Table of Contents`a !QPage ă    X44OVERVIEWƤ4p!!R 1 X44SERVICESƤ4p!!R 2 X44X 44Bandwidth and Quality for Connectiontype ServicesƤ p!!R 2 X44X X DelayƤ p!!R 2 X44X X Circuit InterruptionƤ p!!R 3 X44X X Error Detection and Failed TransfersƤ p!!R 3 X44X 44Required Medium Transfer RateƤ p!!R 3 X44X X Single Channel Asynchronous Sequential AccessƤ p!!R 3 X44X X Regular Frame Adaptively PartitionedƤ p!!R 4 X44X 44Interworking with 802 LAN ServicesƤ p!!R 4 X44X 44Integrated ServicesƤ p!!R 5 X44X 44Classification of Services by Delay CategoryƤ p!!R 5 X44X 44TABLE I CLASSIFICATION OF SERVICES BY PRIORITY AND DELAY REQUIREMENTƤ p!!R 5 X44FUNCTIONS SUPPORTING FUTURE CAPACITY RESERVATIONƤ4p!!R 6 X44X 44Access Method AssumptionsƤ p!!R 6 X44X 44Frame Priority DescriptionƤ p!!R 6 X44X 44Processing AlgorithmsƤ p!!R 7 X44X 44Future Load PredictionƤ p!!R 7 X44X 44Overload ProcessingƤ p!!R 7 X44ARCHITECTURE AND TOPOLOGYƤ4p!!R 7 X44SUMMARY AND CONCLUSIONSƤ4p!!R 8 X44ReferencesƤ4p!!R 9  $.&*&*LL  X    XXXX    0`  b  THE NECESSARY CONDITIONS FOR SUPPORT OF  X9 gCONNECTIONTYPE AND CONNECTIONLESS SERVICES ON WIRELESS LAN ă # &n P7Z&P#  S (#҇X` hp x (#%'0*,.8135@8: