FIELD: radio engineering, communication.
SUBSTANCE: invention relates to communication systems. Retransmission techniques are disclosed. These techniques may be used in networks employing contention-based access schemes, such as CSMA. For instance, a device can receive a corrupted packet from a transmitting device, and determine the cause of the corruption. When the determined cause of the corruption is an in-network packet collision, the device allows the transmitting device to send a retransmission of the packet in accordance with a contention-based access scheme. However, when the determined cause of the corruption is not an in-network packet collision, the device provides retransmission assistance to the transmitting device. This retransmission assistance may include a channel reservation for a retransmission and/or link adaptation suggestions for the transmitting device.
EFFECT: providing assistance to overcome certain forms of interference.
23 cl, 6 dwg
