Method and apparatus for adaptively selecting a...

H - Electricity – 04 – B

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Details

H04B 7/005 (2006.01) H04L 1/00 (2006.01) H04L 1/18 (2006.01) H04Q 7/08 (2006.01) H04Q 7/12 (2006.01) H04Q 7/10 (2006.01)

Patent

CA 2212817

A method and apparatus adaptively selects a communication strategy for communicating a message in a selective call radio communication system including a fixed portion (100) and a portable portion (101). The fixed portion (100) transmits (402) an alert signal to the portable portion (101), and awaits (404) an acknowledgment signal including a signal quality estimate from the portable portion (101). The portable portion (101) receives (602) the alert signal, and computes (604, 606) the signal quality estimate therefrom. The portable portion (101) then sends (608) the acknowledgment signal to the fixed portion (100). In response to the acknowledgment signal, the fixed portion (100) selects (407) a transmission strategy in accordance with the signal quality estimate. For compatibility, the transmission strategy requires a matching reception strategy in the portable portion (101). After sending the acknowledgment signal, the portable portion (101) selects (609) the matching reception strategy in accordance with the signal quality estimate sent in the acknowledgment signal without requiring further communication with the fixed portion (100).

L'invention porte sur un procédé, ainsi que sur l'appareil correspondant, permettant de sélectionner une stratégie de communication aux fins de la transmission d'un message dans un système sélectif de communications radio et comprenant une partie fixe (100) et une partie portative (101). La partie fixe (100) transmet (402) un signal d'appel à la partie portative (101) et attend (404) un signal d'accusé de réception comprenant une valeur estimative de qualité de signal provenant de la partie portative (101). Celle-ci reçoit (602) le signal d'appel, calcule (604, 606) la valeur estimative de la qualité de ce signal et envoie ensuite le signal d'accusé de réception. La partie fixe (100) réagit au signal d'accusé de réception en choisissant (407) une stratégie en conformité avec la valeur estimative de qualité de signal. Une stratégie de réception compatible, stratégie en conformité avec la valeur estimative de qualité de signal, est sélectionnée dans la partie portative (101) sans communication supplémentaire avec la partie fixe (100).

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