Co-channel wireless communication methods and systems using...

Details Co-channel wireless communication methods and systems using... Co-channel wireless communication methods and systems using...

H - Electricity

04

W

H04W 72/04 (2009.01) H04W 88/04 (2009.01)

Patent

CA 2517067

Wireless communications are transmitted from at least two radioterminals to a base station co-channel over a return link using a return link alphabet. Wireless communications are also transmitted from the base station to the at least two radioterminals over a forward link using a forward link alphabet that has more symbols than the return link alphabet. The co-channel signals are deciphered at the receiver, while the radioterminals can use a smaller return link alphabet, which can reduce the power dissipation at the radioterminals.

L'invention concerne des communications sans fil établies depuis au moins deux terminaux radioélectriques à destination d'une station de base dans le même canal, sur une liaison retour, au moyen d'un alphabet de laision retour. On utilise également une liaison aval qui fonctionne avec un plus grand nombre de symboles que l'alphabet de liaison retour. Les signaux dans le même canal sont déchiffrés au récepteur, tandis que les terminaux radioélectriques peuvent fonctionner avec un alphabet de liaison retour, ce qui permet de réduire la dissipation de puissance au niveau des terminaux.

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