Method and device for establishing communication links and handling SP slot connection collisions in a communication system

A mobile node for a wireless communication network, the mobile node comprising:

• a transceiver;
• a directional antenna connected to said transceiver;
• and
• a controller connected to said transceiver and comprising
• a time slot scheduling unit to schedule time slots to establish a communication link with neighboring mobile nodes,
• an antenna aiming unit to aim said directional antenna toward each neighboring mobile node during communication therewith, and
• each communication link being formed by two mobile nodes, an initiating mobile node transmitting a request for time slots to a receiving mobile node, and the receiving mobile node transmitting a reply to the initiating mobile node,
• the controller waiting a time period to resend another request upon simultaneously sending a request to an other mobile node and receiving a request from the other mobile node without receiving a corresponding reply.

A method for establishing communication links for a plurality of mobile nodes, each mobile node comprising a transceiver, a directional antenna connected to the transceiver, and a controller connected to the transceiver, the method comprising for each mobile node:

• scheduling a respective semi-permanent time slot for each time frame to establish a communication link with a neighboring mobile node and leaving at least one available time slot in each time frame;
• scheduling the at least one available time slot to also serve the communication link with a neighboring mobile node based upon link communications demand;
• aiming the directional antenna toward each neighboring mobile node during communication therewith;
• each communication link being formed by two mobile nodes, an initiating mobile node transmitting a request for time slots to a receiving mobile node, and the receiving mobile node transmitting a reply to the initiating mobile node;
• the controller waiting a time period to resend another request upon simultaneously sending a request to an other mobile node and receiving a request from the other mobile node without receiving a corresponding reply.