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 PUBLIC  NOTICE  Federal  Communications  Commission  445  12  th  St.,  S.  W.  Washington,  D.  C.  20554  News  Media  Information  202  /  418-  0500  Fax-  On-  Demand  202  /  418-  2830  TTY  202  /  418-  2555  Internet:  http://  www.  fcc.  gov  ftp  fcc  gov  Federal  Communications  Commission  445  12  th  St.,  S.  W.  Washington,  D.  C.  20554 
 DA:  03-  1992 
 Released:  June  17,  2003 


 Tutorial  on  the  Time  Division  Duplex  (TDD)  Systems  (Second  Part) 
 The  Office  of  Engineering  and  Technology  will  host  the  second  tutorial  of  a  two  part  series  on  Time  Division  Duplex  (TDD)  technologies  presented  by  the  TDD  Coalition  on  Wednesday,  July  9,  2003  from  9:  30  a.  m.  to 
 12:  30  p.  m.  in  the  Commission  Meeting  Room  (TW-  C305),  445  12  th  Street,  S.  W.,  Washington,  D.  C. 
 Technological  advances  continue  to  occur  in  the  field  of  digital  communications  and  one  of  the  hottest  areas  of  activity  is  in  the  standardization  and  deployment  of  both  fixed  and  mobile  broadband  wireless  access  systems. 
 Unlike  the  legacy  cellular  and  PCS  systems  that  have  traditionally  been  circuit  switched  and  focused  on  voice,  these  new  systems  can  be  optimized  for  the  transmission  of  packet-  switched  data,  which  are  characterized  by 
 asymmetric  traffic  flows  both  to  and  from  the  user.  Increasingly,  TDD  is  becoming  increasingly  popular  for  new  broadband  wireless  access  systems,  including  LAN  systems  like  802.11,  and  advanced  broadband  wireless  access 
 systems  for  mobile  and  fixed  applications  like  those  developed  by  members  of  the  TDD  Coalition  and  those  being  standardized  in  3GPP  and  IEEE  802. 


 The  following  topics  will  be  covered  at  this  tutorial: 
 1.  Introduction  to  TDD:  Randall  Schwartz,  Director  of  Business  Development,  BeamReach  Networks  (Chairman  of  the  TDD  Coalition) 


 2.  Status  of  TDD  Spectrum  Allocations,  Deployments  and  Standardization  Around  the  World:  Dr.  Roger  P.  Quayle,  CTO  and  Co-  Founder,  IP  Wireless 
 3.  Coexistence  of  TDD  and  FDD  Systems:  Rémi  Chayer,  Manager  of  Technical  Marketing,  Harris  Corporation 
 4.  Economics  and  Services  for  Fixed  TDD  in  the  USA:  Randall  Schwartz,  BeamReach  Networks 
 5.  Economics  and  Services  for  Mobile  TDD  in  the  USA:  Dr.  Alain  C.  Briancon,  VP  and  CTO,  InterDigital 
 6.  Spectrum  Policy  and  its  Effects  on  the  Deployment  of  TDD  systems:  Dr.  Marc  Goldburg,  M  CTO,  ArrayComm,  Inc. 
 7.  Conclusions:  Randall  Schwartz,  BeamReach  Networks 
 Members  of  the  public  are  welcome,  and  no  reservations  are  necessary.  For  additional  information,  please  contact  Young  Carlson  at  202-  418-  2427,  TTY  202-  418-  2989,  Young.  Carlson@  fcc.  gov.  This  tutorial  will  be  broadcast  live 
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 on  the  Internet  at  www.  fcc.  gov/  realaudio.  The  first  part  of  this  tutorial  may  be  accessed  at  http://  www.  fcc.  gov/  realaudio/  mt120301.  pdf.  Videotapes  of  either  tutorial  may  be  purchased  from  the  FCC's 
 contract  copier,  the  CACI  Productions  Group,  341  Victory  Drive,  Herndon,  VA  20170  (telephone:  703-  834-  1470). 
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