Method for dynamic channel allocation in radio systems,...

Details Method for dynamic channel allocation in radio systems,... Method for dynamic channel allocation in radio systems,...

H - Electricity

04

Q

H04Q 7/36 (2006.01) H04Q 7/22 (2006.01) H04Q 7/38 (2006.01) H04Q 7/20 (2006.01)

Patent

CA 2212072

A method for dynamic channel allocation in radio systems utilizes two stations which can be operated as a transmitter and receiver communicating in parallel via a changing and differing number of channels by means of a mapping algorithm involving mapping modules arranged in the two stations. One station is established as master, and the other as slave. Channel demand is derived from the current data transfer load of the master, and new channel and link tables are calculated and transmitted to the mapping modules of the master and slave. The master sends a reconfiguration signal to the slave, and the slave responds by sending back an acknowledgment signal. The master and the slave then execute the reconfiguration, in which the reconfiguration signal and the acknowledgment signal are ignored by the mapping algorithm and in which those signals are overlapped in time with the allocation or withdrawal procedures for channels on the master and slave. This method ensures that the dynamic channel allocation becomes effective simultaneously for both stations. Also disclosed are devices for carrying out the method.

L'invention est une méthode d'affectation dynamique des canaux dans les systèmes radio; cette méthode utilise deux stations, l'une émettrice et l'autre réceptrice, qui communiquent en parallèle via des canaux en nombre variable au moyen d'un algorithme de mise en correspondance comportant des modules de mise en correspondance installés dans les deux stations. L'une des stations est choisie comme station maîtresse et l'autre comme station esclave. La demande en canaux est établie à partir de la charge de transfert de données du moment de la station maîtresse et de nouvelles tables de canaux et de liaisons sont calculées et transmises aux modules de mise en correspondance des stations maîtresse et esclave. La station maîtresse transmet un signal de reconfiguration à la station esclave qui répond en transmettant un accusé de réception. Les stations maîtresse et esclave exécutent ensuite la reconfiguration; l'algorithme de mise en correspondance ne tient pas compte des signaux de reconfiguration et d'accusé de réception alors et ceux-ci subissent un chevauchement temporel de la part des procédures d'affectation ou de retrait pour les canaux des stations maîtresse et esclave. Cette méthode garantit la simultanéité de l'affectation dynamique des canaux dans les deux stations. Des dispositifs utilisant la méthode de l'invention sont également divulgués.

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