Title :
Space-time pre-equaliser for the downlink channel of UMTS-TDD
Author :
Gameiro, Atilio ; Morgado, A. ; Fernandes, J.
Author_Institution :
Dept. de Electron. e Telecoms, Aveiro Univ., Portugal
Abstract :
This communication deals with space-time pre-equalisation for UMTS-TDD systems. The motivation for that lies in the fact that the up and downlink channels are highly correlated, and thus the equalisation functions can be moved to the BS, therefore simplifying the receiver design. A design technique that explores the frequency redundancy of DS-SS signals is derived for a zero-forcing (ZF) multiple access interference (MAI) criterion. Preliminary examples show that significant improvements can be obtained in MAI dominating scenarios
Keywords :
cellular radio; digital radio; equalisers; pseudonoise codes; radio receivers; radiofrequency interference; spread spectrum communication; time division multiplexing; DS-SS signals; MAI; UMTS-TDD; downlink channel; equalisation functions; frequency redundancy; receiver design; space-time pre-equalisation; space-time pre-equaliser; zero-forcing multiple access interference;
Conference_Titel :
3G Mobile Communication Technologies, 2001. Second International Conference on (Conf. Publ. No. 477)
Conference_Location :
London
Print_ISBN :
0-85296-731-4
DOI :
10.1049/cp:20010020
