Method for optimizing the transmission resources by local loopback in a mobile radio communication cellular network, network and local adapters thereof

Local detector equipment located in a cellular network which comprises:

• means for setting up, maintaining and terminating a data communication channel between a caller and a called party located in said cellular network implemented by exchanges of signalling messages, a caller and/or a called party each being located in a local zone of said cellular network,
• wherein said local detector equipment comprises means for detecting if the caller and the called party of said communication are located in the same local zone of said cellular network, according to a detection strategy including means for analysing all or a portion of said signalling messages, the local detector equipment being located upstream of at least one base station of the cellular network and downstream of a base station controller.

Local adapter equipment located in a cellular network which comprises:

• means for setting up, maintaining and terminating a data communication channel between a caller and a called party located in said cellular network implemented by exchanges of signalling messages, a caller and/or a called party each being located in a local zone of said cellular network,
• wherein said local adapter equipment comprises means for triggering a local loopback operation of all or a portion of data exchanged between the caller and the called party, in a case where a local detector equipment confirms a local nature of said communication between the caller and the called party, the local adapter equipment being located upstream of at least one base station of the cellular network and downstream of a base station controller.