Frequency allocation method, control device, and system in microwave network

A control device in a microwave network, the control device comprising:

• a receiving module, configured to receive a frequency allocation message using a dedicated channel, wherein the frequency allocation message carries a node identifier and received signal strength information for a frequency;
• a processor;
• and
• a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions to:
• determine, according to the frequency allocation message, a station needing frequency allocation;
• obtain node information of each station in a network, wherein the node information of each station in the network comprises first node information of a first station other than a station having the control device and other than a station identified by the node identifier, and wherein the first node information comprises an antenna direction of the first station;
• compute, according to the received signal strength information on the frequency of the station needing frequency allocation and the node information of each station, and further according to the antenna direction of the first station, an optimum working frequency of the station needing frequency allocation;
• and
• allocate the optimum working frequency to the station needing frequency allocation;
• wherein the station needing frequency allocation is a node i, wherein a station directly connected to the station needing frequency allocation is a node j, and wherein the instructions to compute the optimum working frequency of the station needing frequency allocation include instructions to:
• compute an optimum transmit working frequency of the node i, wherein the optimum transmit working frequency satisfies conditions associated with a received signal strength generated by the node i for the node j when the node i works at a transmit working frequency, a receiver sensitivity existing when a third node works in a state of maximum channel bandwidth and a highest modulation mode, a carrier-to-interference ratio of the third node, wherein the third node is at least one node other than the node i and the node j;
• and
• compute an optimum receive working frequency of the node i, wherein the optimum receive working frequency satisfies conditions associated with a received signal strength generated by the node j for the node i when the node i works at a receive working frequency, a receiver sensitivity existing when the node i works in the state of the maximum channel bandwidth and the highest modulation mode, a carrier-to-interference ratio of the node i, a carrier-to-interference ratio threshold for the node i.

A system in a microwave network, wherein the system comprises:

• a control device;
• and
• at least one station configured to send a frequency allocation message by using a dedicated channel, wherein the frequency allocation message carries a node identifier and received signal strength information for a frequency;
• wherein the control device is configured to determine, according to the frequency allocation message, a station needing frequency allocation, and to obtain node information of each station in the network, wherein the node information of each station in the network comprises first node information of a first station other than a station having the control device and other than a station identified by the node identifier, and wherein the first node information comprises an antenna direction of the first station, and wherein the control device is further configured to compute, according to the received signal strength information for the frequency of the station needing frequency allocation and the node information of each station and further according to the antenna direction of the first station, an optimum working frequency of the station needing frequency allocation, and to allocate the optimum working frequency to the station needing frequency allocation
• wherein the station needing frequency allocation is a node i, wherein a station directly connected to the station needing frequency allocation is a node j, and wherein the control device being configured to compute the optimum working frequency of the station needing frequency allocation comprises the control device being configured to:
• compute an optimum transmit working frequency of the node i, wherein the optimum transmit working frequency satisfies conditions associated with a received signal strength generated by the node i for the node j when the node i works at a transmit working frequency, a receiver sensitivity existing when a third node works in a state of maximum channel bandwidth and a highest modulation mode, a carrier-to-interference ratio of the third node, wherein the third node is at least one node other than the node i and the node j;
• and
• compute an optimum receive working frequency of the node i, wherein the optimum receive working frequency satisfies conditions associated with a received signal strength generated by the node j for the node i when the node i works at a receive working frequency, a receiver sensitivity existing when the node i works in the state of the maximum channel bandwidth and the highest modulation mode, a carrier-to-interference ratio of the node i, a carrier-to-interference ratio threshold for the node i.