Method and system for providing personal base station...

Details Method and system for providing personal base station... Method and system for providing personal base station...

H - Electricity

04

W

H04W 16/02 (2009.01) H04W 88/18 (2009.01)

Patent

CA 2338769

A portable phone (236) may operate inexpensively as a cordless phone when in a micro-cell generated by a micro-base station (202), or flexibly as a cellular phone when it leaves the micro-cell and is served in a macro-cell generated by macro-base station (204) operating on the same frequency. When a mobile phone (222), served by the macro-base station (2042), drives by, the signals from the micro-base station (202) (intended for the portable phone 236) drown out the signals from the macro-base station (204). This invention solves the problem by having the micro-base station (202) receive, delay, and retransmit (on a 50 % duty cycle - half the time receiving and hall retransmitting) all signals transmitted by macro-base station (204), in addition to transmitting its own signal. The delay appears to the mobile station (222) as a resolvable multi-path delay, and it continues to be able to receive the signal intended for it.

L'invention concerne un téléphone portatif (236) pouvant assurer un fonctionnement non onéreux comme téléphone sans cordon dans une configuration de micro-cellule établie par une micro-station de base (202), ou un fonctionnement flexible comme téléphone cellulaire en dehors de la micro-cellule, c'est-à-dire lorsque ce téléphone est desservi dans une configuration de macro-cellule établie par une macro-station de base (204) exploitée sur la même fréquence. Lorsqu'un téléphone mobile (222), desservi par la macro-station de base (204), passe au voisinage, les signaux de la micro-station de base (202) (destinés au téléphone portatif (236)) noient les signaux de la macro-station de base (204). L'invention permet de résoudre ce problème de la manière suivante : la micro-station de base (202) reçoit, retarde et retransmet (sur un cycle de travail à 50 %, soit la moitié du temps en réception et l'autre moitié en retransmission) tous les signaux émis par la macro-station de base (204), en plus de la transmission de son propre signal. Le retard apparaît à la station mobile (222) comme étant un retard à trajets multiples qui peut être résolu, moyennant quoi ladite station reste capable de recevoir le signal qui lui est destiné.

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