发明申请
- 专利标题： PREAMBLE SEQUENCING FOR RANDOM ACCESS CHANNEL IN A COMMUNICATION SYSTEM
- 专利标题（中）： 通信系统中随机访问通道的前导序列
-
申请号： US11621587申请日： 2007-01-10
-
公开(公告)号： US20070165567A1公开(公告)日： 2007-07-19
- 发明人: Jun Tan , Amitava Ghosh , Rapeepat Ratasuk , Fan Wang , Weimin Xiao
- 申请人： Jun Tan , Amitava Ghosh , Rapeepat Ratasuk , Fan Wang , Weimin Xiao
- 申请人地址： US IL Schaumburg
- 专利权人： MOTOROLA, INC.
- 当前专利权人： MOTOROLA, INC.
- 当前专利权人地址： US IL Schaumburg
- 主分类号： H04Q7/00
- IPC分类号： H04Q7/00
摘要：
A system and method for initializing a system communication without previous reservations for random access channel (RACH) access includes a first step of defining at least one spread sequence derived from at least one constant amplitude zero autocorrelation sequence. A next step includes combining the spread sequence with a Walsh code to form an extended spread sequence. A next step includes using the extended spread sequence in a preamble for a RACH. A next step includes sending the preamble to a BTS for acquisition. A next step includes monitoring for a positive acquisition indicator from the BTS. A next step includes scheduling the sending of a RACH message. A next step includes sending the RACH message.
公开/授权文献
信息查询
