Adaptive frequency hopping in time-slotted based wireless network

A transmitting node in a wireless network system having a plurality of nodes, which include the transmitting node and a target node that communicate with each other, the transmitting node comprising a main transceiver having a main transmitter and a main receiver, and a controller which has a channel list table that includes, for each transmitting node, one or more channel lists, each channel list containing conditions of the channels of the shared frequency hopping pattern that include at least one available channel for communications with a target node;

• the main transceiver sharing a frequency hopping pattern with main transceivers of other nodes, the shared frequency hopping pattern including channels associated with a series of time slots, the time slots each having an allocated link between two of the nodes;
• wherein the controller includes a channel setting module that is configured to:
• select a channel of a next allocated time slot from the shared frequency hopping pattern for the main transceiver at the transmitting node;
• select the channel list for the target node from the channel list table, to which the transmitting node transmits via the main transmitter;
• check if the selected channel is available based on the selected channel list for the main transmitter;
• set the selected channel for the main transmitter at the transmitting node if the selected channel is available;
• and
• calculate a substitute channel from the channel list in place of the selected channel for the main transmitter at the transmitting node if the selected channel is not available.

A transmitting node in a wireless network system having a plurality of nodes, which include the transmitting node and a target node that communicate with each other, the transmitting node comprising a plurality of transceivers each having a transmitter and a receiver, and a controller which has a channel list table that includes, for each transmitting node, one or more channel lists, each channel list containing conditions of the channels of the shared frequency hopping pattern that include at least one available channel for communications with a target node;

• the transceivers each sharing a frequency hopping pattern with corresponding transceivers of other nodes, the shared frequency hopping pattern including channels associated with a series of time slots, the time slots each having an allocated link between two of the nodes;
• wherein the controller includes a channel setting module that is configured to:
• select a channel of a next allocated time slot from the shared frequency hopping pattern for one transceiver of the plurality of transceivers which has the one transmitter at the transmitting node;
• select the channel list for the target node from the channel list table, to which the transmitting node transmits via the one transmitter;
• check if the selected channel is available based on the selected channel list for the one transmitter;
• set the selected channel for the one transmitter at the transmitting node if the selected channel is available;
• and
• calculate a substitute channel from the channel list in place of the selected channel for the one transmitter at the transmitting node if the selected channel is not available;
• wherein the plurality of transceivers having frequency hopping patterns that are offset from each other;
• and
• wherein the transceivers transmit same data at different channels and receive same data at different channels.