Title:
構成部品による歪を補償するためのパルス成形方法
Document Type and Number:
Japanese Patent JP4015363
Kind Code:
B2
Abstract:
A method is provided for defining a pulse function shape for acting on a data stream for transmission in a telecommunication system which compensates for distortion by a component of the transmitter. The method comprises defining desired cost parameters (e.g. error functions for amplitude, BER, bandwidth, energy, AFC) and defining the shape of the pulse function in dependence of the desired cost parameters and the distortion to be compensated for. A pulse generator, modulator and communications device providing such a pulse function are also provided. Application in dual mode TDMA/CDMA system.
Inventors:
Albert Robo Nity by Dade
Application Number:
JP2000529064A
Publication Date:
November 28, 2007
Filing Date:
January 21, 1999
Export Citation:
Assignee:
NOKIA CORPORATION
International Classes:
H03F1/32; H04L27/20; H04B7/26; H04J13/00; H04L25/03; H04L27/00; H04L27/12; H04L27/36
Domestic Patent References:
| JP63054848A | ||||
| JP2234520A |
Foreign References:
| US4750192 | ||||
| US5253272 | ||||
| US5481533 | ||||
| EP0378719A1 | ||||
| EP0561258A1 |
Attorney, Agent or Firm:
Makoto Hagiwara