Invention Grant
US08391410B2 Methods and apparatus for configuring a pilot symbol in a wireless communication system
有权
用于在无线通信系统中配置导频符号的方法和装置
- Patent Title: Methods and apparatus for configuring a pilot symbol in a wireless communication system
- Patent Title (中): 用于在无线通信系统中配置导频符号的方法和装置
-
Application No.: US11535940Application Date: 2006-09-27
-
Publication No.: US08391410B2Publication Date: 2013-03-05
- Inventor: Michael Mao Wang
- Applicant: Michael Mao Wang
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Arent Fox, LLP
- Main IPC: H04L27/20
- IPC: H04L27/20 ; H03K7/04 ; H03K7/06 ; H03K9/04 ; H03K9/06 ; H04L27/18

Abstract:
Methods and apparatus for constructing a pilot symbol for a communication frame transmitted in a wireless communication system, such as an OFDM system, are disclosed. In particular, the methods and apparatus generate at least one pseudo-random noise sequence having at least a predetermined length, where the at least one pseudo-random noise sequence represents a system configuration of a wireless system. A time domain symbol sequence is modulated with the at least one pseudo-random noise sequence to create a timing acquisition pilot symbol. The modulated acquisition pilot symbol is further masked to a prescribed frequency profile and placed in a frame for wireless transmission. Accordingly, different system configurations can be communicated from a transmitter to a receiver with the acquisition pilot symbol modulated with correspondingly different pseudo-random noise sequences, while affording low complexity required to process the acquisition pilot symbol and a minimum peak to average power ratio when using QPSK modulation.
Public/Granted literature
- US20070082696A1 METHODS AND APPARATUS FOR CONFIGURING A PILOT SYMBOL IN A WIRELESS COMMUNICATION SYSTEM Public/Granted day:2007-04-12
Information query