Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMMUNICATION METHOD INSTALLED IN SPREAD SPECTRUM COMMUNICATION SYSTEM, BASE STATION AND USER DEVICE
Document Type and Number:
Japanese Patent JP2013009382
Kind Code:
A
Abstract:

To achieve accurate channel estimation by a user device.

A communication method installed in a spread spectrum communication system includes a plurality of user devices subordinate to one cell. The communication method includes a process of transmitting data codes from a base station to the user device at regular time positions in a transmission time interval with a plurality of subcarrier frequencies during the transmission of a data group. The data code includes a first pilot code adapted to each user device and a second pilot code fixed to the plurality of user devices. The first pilot code for each user is inserted into a data group for each user device.


Inventors:
FON GUYAN
Application Number:
JP2012000168454
Publication Date:
January 10, 2013
Filing Date:
July 30, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NEC CORP
International Classes:
H04J11/00; H04J13/16; H04L5/00; H04L25/02; H04W28/06
Domestic Patent References:
JP2005520432A2005-07-07
JP2000151548A2000-05-30
JP2001077789A2001-03-23
Foreign References:
WO2004056022A22004-07-01
Attorney, Agent or Firm:
家入 健