Title:
データ伝送方法およびデータ伝送システム
Document Type and Number:
Japanese Patent JP4746243
Kind Code:
B2
Abstract:
The present invention provides a data transfer method for use in a CDMA system operating in the TDD mode. A data signal is transmitted in the form of a data stream of data bursts of different users between a first station and a second station via a multiplicity of antennas, and a reference signal is transmitted in connection with the specific data burst. In a first step, a reference signal is transmitted from the second station to the first station. In a second step, a channel estimation is performed in the first station based on the reference signal that is received from the second station. In a third step, the first station transmits a data burst to the second station via the multiplicity of antennas, it being possible to modify the transmission signals of various antennas having various amplitude and phase factors in accordance with the channel estimation.
Inventors:
Martin Hans
Frank Kovalevsky
Joseph Raumen
Gunner Schmidt
Siegfried Beer
Mark Beckman
Frank Kovalevsky
Joseph Raumen
Gunner Schmidt
Siegfried Beer
Mark Beckman
Application Number:
JP2001562870A
Publication Date:
August 10, 2011
Filing Date:
February 16, 2001
Export Citation:
Assignee:
IPCom GmbH & Co. KG
International Classes:
H04B7/06; H04B1/707; H04B7/26; H04W16/28
Domestic Patent References:
| JP8274687A | ||||
| JP11088247A |
Other References:
WITTNEBEN A,ANALYSIS AND COMPARISON OF OPTICAL PREDICTIVE TRANSMITTER SELECTIONAND COMBINING DIVERSITY FOR DECT,IEEE,米国,1995年11月14日,P1527-1531
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Einzel Felix-Reinhard
Takuya Kuno
Einzel Felix-Reinhard