WPC' 2BPZCourier 10cpi3|K gx6X@87X@HP LaserJet IIIHPLASIII.PRSx  @,\$'xX@#|K 2pB Z"^4@@l4DDd8@8dllllllllll<a݅@  I.   X(# 2t.BibliogrphyBibliography݅X  (# SubheadingSubheading0\ E A.  "^,44P(@@P(8(TPPPPPPPPPP,,P|pttd``((Z(````;S>`]]]PSSSSiiiii8888ZiiiiiiSif({Z{Z{Z{Z{ZuZ`Z`Z`Z`Z.(.(.(.(x`````x`x`x`x`r]{Zx``r]x`c`{Z{i{iuiuiuixiiiiiiiii{`{i{i{i{ixii(iiii.fPiioiiiiiZFZ.xxixiiilililSliliiiiix`xixixix`x`rifP8SSS88/NxxxSii8V]]iiiDDiAASSiA8SSSi>>iiffSSxSrffx8SxA"xxSxexxS姧S88xfxxxxxxxxxx8S{ici{P8ix]i`xrxxxxxxxxxxSxxxxxxxofxGcxxxxxxxxSxxxxxxxSxxxxSxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx8xxx8xxx8xxx8xxxxxxxxxxxxx{`ic]S{``SfMx`f.+oS{Scx]xP`fc`flMiMrcxx]x{`x8irr`lrx88iiii{xiiirrr8fSJ8xHelv 12pt (AC)TmsRmn 10pt (AC)TmsRmn 14pt (AC)TmsRmn 14pt Bold (AC)Helv 14pt (AC)Helv 14pt Bold (AC)Helv 12pt Bold (AC)Helv 10pt (AC)Helv 10pt Italic (AC)Helv 10pt Bold (AC)Univers Bold Italic (Scalable)Univers (Scalable)Helv 8pt (AC)Helv 8pt Bold (AC)N<,1z4  p^z8N<,G'2PPL{6N<,Vi2p/tC4,j*Xt2pX~)\8,,~\2PP  ~)X8,,0X2xKX '`8,,`2p}*i88,گixx7t}*i88,AixP7PtK?!!,!,?xP7,P"Sh ^88Sii888i8888iiiiiiiiii88V{iux`]{x.]oZxcllixxxrf888SS8Z`Z`Z>``((Z(````;S>`]]]PJSJSiiiii8888ZiiiiiiSif({Z{Z{Z{Z{ZuZ`Z`Z`Z`Z.(.(.(.(x`````x`x`x`x`r]{Zx``r]x`c`{Z{i{iuiuiuixiiiiiiiii{`{i{i{i{ixii(iiii.fPiioiiiiiZ=Z(xrxixiiilililSliliiiiix`xixixix`x`rifP8SSS88/NxxxSii8V]]iiiDDiAASSiA8SSSi>>iiffSSxSrffx8SxA"xxSxXxxS姧 S88xfxxxxxxxxxx8S{ici{P8ix]i`xrxxxxxxxxxxSxxxxxxxofxGcxxxxxxxxSxxxxxxxJxxxxJxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx8xxx8xxx8xxx8xxxxxxxxxxxxx{`ic]S{``SfMx`f.+oS{Scx]xP`fc`flMiMrcxx]x{`x8irr`lrx88iiii{xiiirrr8fSJ8x"Sh ^!!2??dL!!!?d!!!!??????????!!ddd4dJ?FH98JH8C6[HL;NAA?HHdHE=!!!22!69696%996W9999#2%98W880,2,d2 ?????!!!!6??????2?=J6J6J6J6J6bUF696969696H9L9L9L9L9H9H9H9H9E8J6HL9L9E8H9;9J6J?J?F?F?F?H?????????J9J?J?J?J?H??????=Q0??C?????6$6HEH?H?L?L?d[A?A?A2A?A?????H9H?H?H?H9H9dWE?=0!222!!/ddddddddddddddddddddddddddddddddddddddddddddddddNHHH2??!488??`?))dd?''22?d'!222?d%%dd??==Ld2d2H2E]]==dx!2x`d'"ddddHHddd2Hdd5HHddddd2dddddd2!!dddddH=ddHHHHHHHHHH!d2J?;?ddQdJ0!?H8?9HNEddHHHHHHHHHHddddd2dHHHHdddddddddddddddddddHHddxdddWC=NdHddd+;HHHHdddxddHHH2HHdHHdddHHH,HHHH,HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHxHHHHHHHH!HHH!HHH!HHH!HHHHHHHHHHHHHJ9?;82J992=.H9L=C2J2[;H8H0L9Q=;9=A.?.E;]HH8]HQNJ9H!?LEEQ9ANEH!!????JH???EEEQ!=2,!x2=#g$ `RQ"^$,(dLt\$00Dp$,$HLLLLLLLLLL((pppHX\d`XPh`(H`Lx`hXh`XP`PxPPP4H4LL$LPHPL,PP$$H$tPPPP4H,PDdDHDDLDp 10pt (AC)Helv 10pt Italic (AC)Helv 10pt Bold (AC)Univers Bold Italic (Scalable)Univers (Scalable)Helv 8pt (AC)T21lC4,0kXl2PXPy.\8,,\\\  PRuPj ?N<, tH\  PBuP ?N<,1z4  p^38N<,G'2PPL46N<,Vi2p5/tC4,j*Xt2pX<~)\8,,~\2PP  =~)X8,,0X2xKX ?'`8,,`2p:}*i88,گixx7t9}*i88,AixP7Pt>K?!!,!,?xP7,PTe H,$,@H2P7PSfL,$,L2ptd!T,,,QTxP7P2o#F`'"Sh ^,,CTTe,,,T,,,,TTTTTTTTTT,,EcT^`MJc`%JYHy`eOhVVT```[Q,,,CC,HMHMH1MM H tMMMM/C1MJtJJ@;C;CTTTTT,,,,HTTTTTTCTQ cHcHcHcHcHr^HMHMHMHMH% % % % `MeMeMeMeM`M`M`M`M[JcH`eMeM[J`MOMcHcTcT^T^T^T`TTTTTTTTTcMcTcTcTcT`TT TTTT%Ql@TTYTTTTTH0H `[`T`TeTeTyVTVTVCVTVTTTTT`M`T`T`T`M`Mt[TQ@,CCC,,/N```CTT,EJJTTT66T44CCT4,CCCT11TTRReCC`C[{{QQx,Cx4"``C`F``C充C,,`Q``````````,CcTOTmc@,T`JTM`h[``````````C``````xtYQh`9O````x```C```````;````;```````````````````````````````````x````````,```,```,```,`````````````cMTOJCcMMCQ>`MeQ%#YCcCyO`J`@eMmQOMQV>T>[O{``J{`mhcM`,Te[[mMVh[`,,TTTTc`TTT[[[m,QC;,x+Z  yxdddy    yO. #\\  PRu\P#Printed: September 4, 1991APage `(#iFile: 11APS18F+   XX >u ` #\  PButHP#SEPTEMBER 1991`,(#`DOC.: IEEE P802.11/91 95 ă    yxbdddy <a  yxXdddy    yO. #\\  PRu\P#Printed: September 4, 1991APage `(#XAccess Method for Common Channel<  #2P'P#> IEEE P802.11 ă +802 LAN Access Method for Wireless Physical Medium #Xl2P0kXP# l yx*dddy DATE: ` ` August 23, 1991`X(#] REVISED: September 4, 1991  l yxf dddy TITLE: ` ` SEQUENTIALLYUSED COMMON CHANNEL ACCESS METHOD (#`  Xl yx dddy AUTHOR: ` ` Chandos A. Rypinski, ` `  (Chief Technical Officer ` ` LACE, Inc.`(#`Telephone: 707 765 9627 ` ` 921 Transport Way`-(#_Facsimile: 707 762 5328 ` ` Petaluma, California 94954 USA t l yxdddy #\2PP##Xl2P0kXP#  P  SUMMARY This access method uses a single highdatarate channel sequentially at overlapping and interfering Accesspoints (one reuse group) all under the control of a single Access Manager within a multiport Hub Controller. In general, the capacity can be equal to the parallel use of a lower rate at the same number of Accesspoints in a channelized system. The primary plan requires infrastructure, but permits direct StationtoStation transfers when it is possible. The plan provides connectiontype service consistent with IEEE 802.6 cell format. A secondary version of the plan is given for operation without infrastructure and without support of connectiontype services. The previous contribution (IEEE 802.11/9119) on access method is superseded in detail use of messages by the current contribution (IEEE 802.11/9195), however, the original contribution contains material on calculated efficiency and compatibility with 802.6 ATM cell transfer which remains relevant though slightly inaccurate because of increases in message lengths to allow channelization and multiple simultaneous connections at one Station. The purpose of this revision is to present the single timeshared channel concept consistently with channelized systems elsewhere presented, and to incorporate the common message set for all of the methods.  !l This method is the first of three access methods that have been developed all using the same message set and which can be characterized as follows:  PB#  1)` ` With and without infrastructure, sequential use of one channel at all  P+$ Accesspoints within one reuse group. (#` 2)` ` With infrastructure control, sequential use of a common setup channel and parallel use of a number of data transfer channels derived by codedivision spread spectrum or otherwise.(#` 3)` ` Independent of infrastructure and without virtual circuit support, random contention use of a common setup channel and distributed channel selection for following use of one of several data transfer channels.(#(#x(#` ) .@+@+::  Table of Contents``!(#tPageă X` hp x (#%'0*,.8135@8: