US 2010/0303162 A1 · MULTI-USERS DETECTING METHOD AND DEVICE OF OFDM TRANSMISSION SIGNAL

Abstract

Multi-users detecting method and device of OFDM transmission signal include that: a received data sequence is composed of the received signal which is in the position of the time and frequency symbol corresponding to the same data symbol in multi-repeating blocks; the composed repeating channel response sequence array which is corresponding to the received data sequence is determined; the received data sequence is detected to acquire the data symbol information of multi-users by using the composed repeating channel response sequence array. The technical solution can effectively restrain the multi-address interference and the interference between symbols during OFDM transmitting signal and improve the system performance greatly.

Claims22

Dependent claims

A method for multi-user detecting of an Orthogonal Frequency Division Multiplexing, OFDM, transmission signal, comprising:

combining received signals at positions of time and frequency symbols from all of multiple repeated Block Units corresponding to the same data symbol into a received data sequence;
determining a combined repeated channel response sequence array corresponding to the received data sequence;
and
detecting the received data sequence using the combined repeated channel response sequence array to obtain multi-user data symbols.

1 more element

A device for multi-user detecting of an Orthogonal Frequency Division Multiplexing, OFDM, transmission signal, comprising:

a first unit, which is configured to combine the received signals at positions of time and frequency symbols from all of multiple repeated Block Units corresponding to the same data symbol into the received data sequence;
a second unit, which is configured to determine a combined repeated channel response sequence array corresponding to the received data sequence;
and
a third unit, which is configured to detect the received data sequence using the combined repeated channel response sequence array, to obtain the multi-user data symbols.

1 more element

Dependencies are inferred from the claim text.

Multi-users detecting method and device of ofdm transmission signal

Life of this patent

Multi-users detecting method and device of ofdm transmission signal

Life of this patent

Abstract

Claims22