Procedure for establishing a transmission between mobile terminals of the same group belonging to a shared resource radiocommunication network operating in direct mode

摘要

Procedure for establishing a transmission of information between a mobile transmitting terminal (Tki) and at least one mobile receiving terminal (Tki) of the same group of terminals (Gk) belonging to a shared resource radiocommunication network (1), the latter operating in direct mode and comprising a plurality of mobile terminals (Tki, Tji) arranged in groups (Gk, Gj), comprising the following steps: E1 / at least one terminal (Tki) of a given group (Gk) of terminals of said network (1), called the first transmitting terminal, issues a transmission request (Tx) to inform the other terminals (Tki) of said group (Gk) of its intention to transmit information using resources assigned to its group, and even allocated resources to the other groups; E2 / at least some of the other terminals (Tki) of said group (Gk) supervise the issuance of such transmission request; E3 / each terminal (Tki) of said group (Gk) that has received said transmission request (Tx), called receiver terminal, determines, from at least one predefined selection strategy, whether it accepts the transmission of information by said first transmitter terminal (Tki); E4 / in case of acceptance of said transmission, each receiving terminal (Tki) transmits to the other terminals (Tki) of its group (Gk) a return signal (Rx-A) comprising data relative to said first sending terminal (Tki). ), especially his identity; E5 / upon receipt of said return signal, said first sender terminal (Tki) checks whether it fulfills predetermined transmission conditions; and E6 / in the case in which said transmission conditions are met, said first sending terminal (Tki) transmits said information to the other terminals (Tki) of its group (Gk) in at least one assigned resource (ΔFk) to said group (Gk)