Motorola Mobility LLC

Anahid Robert

Patrick Labbe

Stephanie Rouquette-Leveil

Laurent S Mazet

David G Bateman

Philippe Bernardin

A method is provided for performing channel equalization on a wireless signal. The method includes: (i) formulating an equalizer associated with sub-carriers of the wireless signal, wherein the equalizer is a function of a quantity relating to signal quality (); (ii) determining an adjoint of the equalizer over a selected number of the subcarriers (); (iii) interpolating the adjoint determined in (ii) to obtain an adjoint of the equalizer over remaining ones of the subcarriers of the wireless signal (); and (iv) generating an equalized signal for each of the subcarriers using the adjoint of the equalizer over the selected number of subcarriers and the interpolated adjoint over the remaining ones of the subcarriers ().

Method and apparatus for performing channel equalization on a MIMO signal

A Multiple In Multiple Out (MIMO) communication system comprises an air interface scheduler for allocating air interface resource to a plurality of user equipments transmitting to a MIMO receiver. A vector processor of the scheduler determines a receive equalizer vector for the MIMO receiver for each of a plurality of user equipments in response to a channel matrix for the user equipment. The vector processor may specifically apply singular value decomposition to the channel matrix to determine the receive equalizer vector. An orthogonality processor then determines orthogonality measures between receive equalizer vectors for different sets of user equipments. A selection processor selects a set of user equipments to be allocated a shared MIMO air interface resource in response to the orthogonality measures. By scheduling in response to orthogonality of receiver operations, a reduced interference and/or reduced receiver complexity can be achieved.

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Val de Marne, France

Anahid Robert