H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/02 (2006.01) H04B 7/04 (2006.01) H04B 7/06 (2006.01)
Patent
CA 2090513
A method and apparatus providing antenna diversity is disclosed. A set of bits of a digital signal are used to generate a codeword of N symbols. Codewords are provided according to a channel code having a minimum Hamming distance, dmin, where 2~dm~N. N signals representing N symbols of a codeword are transmitted with N different antennas. The N transmitted signals are received and isolated. A sequence of N received symbols is formed from the isolated symbols and compared with one or more valid codewords to associate the sequence with a codeword. A set of bits based on a codeword associated with the received sequence is generated.
Méthode et appareil permettant la diversité d'antennes. Un groupe de bits d'un signal numérique est utilisé pour produire un mot de code de N symboles. Les mots de code sont produits en fonction d'un code de canal ayant une distance de Hamming minimale, dmin, où 2~dm~N. N signaux représentant N symboles d'un mot de code sont transmis au moyen de N antennes différentes. Les N signaux transmis sont reçus et isolés. Une séquence de N symboles reçus est formée à partir des symboles isolés et comparée avec un ou plusieurs mots de code valides afin d'être associée à un mot de code particulier. Un groupe de bits basé sur un mot de code associé à la séquence reçue est produit.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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