# US 2021/0345018 A1 · Method and system for automatically protecting radio network equipment in extreme environmental conditions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345018 A1 - Document ID: US20210345018A1 - Status: Published application - Kind: A1 - Application number: 17/273,345 - Filed: 2018-09-14 - Published: 2021-11-04 - Earliest claimed: 2018-09-14 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget Lm Ericsson (Publ) - Inventors: Rafia INAM; Lackis ELEFTHERIADIS; Junaid SHAIKH; Daniel LINDSTRÖM - Web page: https://patentgrep.com/patent/US20210345018A1 ## CPC - H04Q 1/11: {Protection against environment} - H04Q: SELECTING (switches, relays, selectors H01H; wireless communication networks H04W) ## Abstract Methods and systems automatically protect radio network equipment in extreme weather conditions such as sand-storms or snow-storms. A pair of phase-shift material grids having different orientations is installed at an air intake of the radio network equipment. One of the grids is powered to open or close the air intake according to a current amount of air-carried particles entering the radio network equipment and a temperature inside the radio network equipment. The current amount of air-carried particles entering the radio network equipment may be detected by a piezoelectric sensor. ## Claims ### Claim 1 A method for automatically protecting radio network equipment, RNE, in extreme weather conditions, the method comprising: installing, at an air intake of the RNE, a sensor configured to detect a current amount of air-carried particles entering the RNE, and a pair of phase-shift material grids having different orientations and configured to open or close the air intake; and automatically powering one grid of the phase-shift material grids to open or close the air intake according to the current amount of air-carried particles and a temperature inside the RNE. ### Claim 2 (depends on 1) The method of claim 1, wherein the sensor is a piezoelectric sensor. ### Claim 3 (depends on 1) The method of claim 1, wherein, when power is applied to a first grid of the pair no power is injected into a second grid of the pair, and, when power is applied to the second grid no power is injected into the first grid. ### Claim 4 (depends on 1) The method of claim 1, wherein one grid of the pair is perpendicular to the second grid and isolated from the second grid so as to prevent power and heat transfer there-between. ### Claim 5 (canceled) ### Claim 6 (depends on 1) The method of claim 1, wherein the automatically powering of the one of the pair of phase-shift material grids causes a 20-50K temperature increase and/or the air intake to open or to close with 2-5 mm. ### Claim 7 (depends on 1) The method of claim 1, wherein the RNE includes a radio base station, RBS, and the method further comprises: reducing data traffic in the RBS when the current amount of air-carried particles detected by the sensor triggers closing of the air intake. ### Claim 8 (depends on 7) The method of claim 7, wherein the data traffic is reduced when temperature inside the RBS exceeds a predetermined threshold. ### Claim 9 (depends on 7) The method of claim 7, wherein the data traffic is reduced gradually. ### Claim 10 (depends on 1) The method of claim 1, further comprising: training a controller to perform the automatically powering using machine learning techniques. ### Claim 11 (depends on 1) The method of claim 1, further comprising: training a controller using historic data to optimize the automatically powering using a predictive model, wherein the controller receives weather information for an area where the RNE is deployed to apply the predictive model. ### Claim 12 (depends on 1) The method of claim 1, wherein the RNE includes a radio base station, RBS, and, a battery backup unit, BBU, each of which has a ventilation opening whose opening state is automatically controlled according to the current amount of air-carried particles detected by the sensor and the temperature. ### Claim 13 A system for automatically protecting radio network equipment, RNE, in extreme weather conditions, the system comprising: a sensor configured to detect a current amount of air-carried particles entering the RNE; a temperature sensor configured to measure temperature inside the RNE; a pair phase-shift material grids having different orientations, configured and mounted to open or close an air intake of the RNE; and a controller connected to the sensor and to the pair of phase-shift material grids, the controller being configured to automatically supply power to one of the phase-shift material grids according to the current amount of air-carried particles entering the RNE and the temperature inside the RNE. ### Claim 14 (depends on 13) The system of claim 13, wherein the sensor is a piezoelectric sensor. ### Claim 15 (depends on 13) The system of claim 13, wherein, when power is applied to a first grid of the pair no power is injected into a second grid of the pair, and, when power is applied to the second grid no power is injected into the first grid. ### Claim 16 (depends on 13) The system of claim 13, wherein one grid of the pair is perpendicular to the second grid and isolated from the second grid to prevent power and heat transfer there-between. ### Claim 17 (canceled) ### Claim 18 (canceled) ### Claim 19 (depends on 13) The system of claim 13, wherein the RNE includes a radio base station, RBS, and the controller is further configured to trigger reducing data traffic in the RBS when the current amount of air-carried particles detected by the sensor causes closing of the air intake. ### Claim 20 (depends on 19) The system of claim 19, wherein the data traffic is reduced when temperature inside the RBS exceeds a predetermined threshold. ### Claim 21 (depends on 19) The system of claim 19, wherein the data traffic is reduced gradually. ### Claim 22 (depends on 13) The system of claim 13, wherein the controller is trained using machine learning techniques to automatically supply power to one of the phase-shift material grids according to the current amount of air-carried particles and the temperature. ### Claim 23 (canceled) ### Claim 24 (canceled) ### Claim 25 A non-transitory computer readable medium storing executable codes which when executed by a processor make the processor perform a method for automatically protecting a radio network equipment, RNE, in extreme weather conditions, the method comprising: receiving information about a current amount of air-carried particles entering the RBS and temperature inside the RNE; and sending commands for supplying power to one of a pair of phase-shift material grids according to the current amount of air-carried particles and the temperature, the phase-shift material grids having different orientations and being placed and configured to open or close an air intake of the RBS.