Delay restricted channel estimation for multi-carrier systems
Номер патента: EP1842305A2
Опубликовано: 10-10-2007
Автор(ы): Arunabha Ghosh
Принадлежит: AT&T Knowledge Ventures LP, SBC Knowledge Ventures LP
Опубликовано: 10-10-2007
Автор(ы): Arunabha Ghosh
Принадлежит: AT&T Knowledge Ventures LP, SBC Knowledge Ventures LP
Реферат: A transmitted symbol matrix (22) and a received symbol vector (24) are transformed based on a non-identity transformation. The non-identity transformation is based on a finite spread of a channel impulse response in a time domain and is usable to improve accuracy of channel estimation (26) in a frequency domain. A transformed channel vector is determined based on the transformed transmitted symbol matrix (22) and the transformed received symbol vector (24) using a channel estimation method. One or more elements in the transformed channel vector are suppressed to at or about zero (30). The suppressed (30), transformed channel vector is inverse transformed (32) into an estimated channel vector based on the non-identity transformation.
Delay restricted channel estimation for multi-carrier systems
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