RU2000105260A - POWER ADAPTATION IN A MULTI-STATION NETWORK - Google Patents

Claims (23)

1. A method for managing a communication network containing a plurality of stations capable of transmitting and receiving data from each other, moreover, the method monitors at each station the quality of the route between this station and every other station that this station communicates with; recording at each station route quality data corresponding to the route quality associated with each other station mentioned; setting in each station the transmit power value based on the recorded route quality data associated with the selected other station, when transmitting data to said selected other station, thus to increase the likelihood of transmitting data to said selected other station at an optimal power level; and transmit route quality data corresponding to the quality of the route between the first and second station when transmitting other data between stations, so that route quality data recorded in the first station is transmitted to the second station for use by the second station and vice versa.  2. The method according to p. 1, in which the quality control of the route between stations includes monitoring at least one of the characteristics of the channel between stations: route loss, phase distortion, time delay, Doppler shift and multi-path fading.  3. The method according to claim 1 or 2, in which the quality of the route at the station receiving the data transmission is calculated by comparing the measured power of the received transmission with the data in the transmission indicating its transmit power.  4. The method of claim 3, wherein the station receiving such route quality data compares the received route quality data with corresponding stored route quality data and calculates a route quality correction amount from the difference between received and stored values, wherein the route quality correction amount is used for regulating the transmit power when transmitting data to a station that transmitted route quality data.  5. The method according to p. 4, in which the coefficient of the correction of the quality of the route is calculated by obtaining the rate of change of data from many calculations of the coefficient of correction of the quality of the route.  6. The method according to p. 5, in which the rate of change of data is used to control the transmit power in advance when transmitting data to the station, the value of the route quality correction of which is detected to change over time.  7. The method according to any one of paragraphs. 1-6, in which each station monitors the transmissions of other stations to obtain route quality data from them, so that the first station that monitors the transmission from the second station in the range of the first station to the third station receives outside the range of the first station route quality data related to the third station.  8. The method according to any one of paragraphs. 3-7, including monitoring from the first station transmitting the data, background noise / interference in the second station receiving the data transmission, and adjusting the transmit power at the station transmitting the data to the receiving station, thereby maintaining the desired signal-to-noise ratio in the receiving station.  9. The method of claim 8, wherein each station includes local background noise / interference data in at least some of its transmissions to other stations for use by other stations in controlling their transmit power values when transmitting data to said each station.  10. The method according to p. 8 or 9, comprising controlling the speed of message data transmitted from the first station to the second station, in accordance with the amount of transmit power installed in the first station and the desired signal-to-noise ratio in the second station.  11. The method according to any one of paragraphs. 8-10, including adjusting the length of message data packets transmitted from the first station to the second station in accordance with the amount of transmit power set in the first station and the desired signal-to-noise ratio in the second station.  12. The method according to any one of paragraphs. 1-11, in which each station monitors the transmissions of other stations to obtain route quality and background noise / interference data from them, so that the first station that monitors the transmission from the second station in the range of the first station to the third station outside the range of the first station receives background data noise / interference related to the third station.  13. The method according to any one of paragraphs. 1-12, comprising appropriately selecting a station for transmitting data thereto, in accordance with route quality data and / or background noise / interference data associated therewith.  14. A communication device that can operate as a station in a network comprising a plurality of stations that transmit and receive data from each other, the communication device comprising transmitter means adapted to transmit data to selected stations; receiver means adapted to receive data transmitted from other stations; signal intensity measuring means for measuring power of received transmissions; a processor for calculating and recording route quality data corresponding to the quality of the route associated with other stations; and control means for regulating the output power of the transmitter, in accordance with the quality of the route between the device and the destination station; wherein the processor is configured to include route quality data in its transmissions to other stations for use by them and receive route quality data in transmissions from other stations for use in calculating updated route quality data.  15. The communication device according to claim 14, in which the processor is configured to calculate the quality of the route by comparing the data in the received transmissions related to their transmit power and / or the previously measured quality of the route with measurements made by means of measuring signal intensity.  16. The communication device according to p. 15, in which the processor is configured to control at least one of the characteristics of the channel between the device and other stations; route loss, phase distortion, time delay, Doppler shift, and multi-path fading.  17. The communication device according to claim 15 or 16, wherein the processor is configured to extract route quality data from the received transmissions to compare route quality data with the measured power of the received transmissions and to calculate the route quality correction coefficient from the difference between them, wherein the quality correction coefficient the route is used by the control means to control the output power of the transmitter.  18. The communication device according to claim 17, wherein the processor is configured to obtain a rate of change of data from a plurality of calculations of a route quality correction coefficient and compensate for changes in the quality of the route between stations.  19. The communication device according to claim 18, in which the processor is configured to use the rate of change of data to adjust the transmit power previously when transmitting data to the station, the value of the route quality correction of which is detected to change with time.  20. The communication device according to any one of paragraphs. 14-19, in which the processor is configured to control route quality data in transmissions from other stations, so that the first station monitoring transmission from the second station in the range of the first station to the third station outside the range of the first station receives route quality data related to the third station.  21. The communication device according to any one of paragraphs. 18-20, in which the processor is configured to store route quality data for each of the plurality of stations and set the initial transmit power when initiating communication with any of the plurality of stations in accordance with corresponding stored route quality data.  22. The communication device according to any one of paragraphs. 14-20, in which the processor is configured to monitor background noise / interference data in transmissions from other stations, so that the first station monitoring transmission from the second station in the range of the first station to the third station outside the range of the first station will receive background noise / interference data related to the third station.  23. A communication device according to any one of paragraphs. 14-22, in which the processor is adapted to suitably select another station to transmit data thereto, in accordance with the route quality data and / or background noise / interference data associated therewith.