Trunked communication system with automatic repeater...

Details Trunked communication system with automatic repeater... Trunked communication system with automatic repeater...

H - Electricity

04

B

H04B 7/15 (2006.01) H04B 1/40 (2006.01) H04Q 7/28 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2140439

A method to implement multiple talk-around communication links using the communication resources of one repeater. A system resource controller (13) determines whether talk-around is possible for any two communication units (11) intending to engage in a point-to-point communication link. Assignment of a talk-around repeater (15) depends on the geographic locations of the two communication units, and a predetermined range criterion between them. In addition, the talk-around communication must not interfere with any existing talk-around communication already in the system. When talk-around communication is possible, an enabling communication grant is issued to the units, and the talk-around repeater's communication resources are assigned to support the link. Otherwise, a repeater (16) for normal trunking is assigned.

L'invention concerne des liaisons de communication multiples point à point utilisant les ressources de communication d'un répéteur. Un dispositif de contrôle (13) des ressources détermine si la communication point à point est possible entre deux unités de communication quelconques (11) souhaitant entrer en communication mutuelle. L'assignation d'un répéteur à des conversations point à point (15) dépend de l'emplacement géographique des deux unités de communication et de la distance qui les sépare. En plus, la communication point à point ne doit pas interférer avec une communication point à point déjà en cours dans le système. Lorsqu'une communication point à point est possible, une autorisation de communication (validation) est donnée aux unités et les ressources du répéteur sont affectées à cette liaison. Autrement, on utilise un répéteur (16) de communication normale par canaux.

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