Beam recovery for antenna array

Abstract

The described technology is generally directed towards beam recovery for an antenna array. One or more recovery beams or recovery beam patterns can be defined for an antenna array, and in response to a failure, the antenna array can be restored to a defined recovery beam or recovery beam pattern. Techniques for defining recovery beams and recovery beam patterns for the antenna array, selecting a recovery beam or recovery beam pattern for the antenna array, and entering a selected recovery beam or recovery beam pattern by the antenna array are also disclosed.

What is claimed is: 
     
         1 . A method, comprising:
 in response to a beam failure at an antenna array:
 selecting, by a system comprising a processor, a recovery beam pattern for use by the antenna array, 
 wherein the recovery beam pattern comprises an attenuated signal strength at a position of a mobile device associated with a security violation; and 
 facilitating, by the system, switching the antenna array to the recovery beam pattern. 
   
     
     
         2 . The method of  claim 1 , further comprising pre-calculating, by the system, the recovery beam pattern by the system in advance of the beam failure at the antenna array. 
     
     
         3 . The method of  claim 2 , further comprising receiving and storing, by the system, channel state information comprising signal strength information indicating strength of wireless signals received at mobile devices, and wherein pre-calculating the recovery beam pattern is based on the channel state information. 
     
     
         4 . The method of  claim 3 , wherein pre-calculating the recovery beam pattern comprises a machine learning analysis of the channel state information and beam pattern information corresponding to beam patterns used at the antenna array. 
     
     
         5 . The method of  claim 3 , wherein the beam failure comprises a beam failure inference based on the channel state information. 
     
     
         6 . The method of  claim 1 , wherein the recovery beam pattern further comprises a spatial distribution that corresponds to a distribution of mobile devices in wireless communication with the antenna array. 
     
     
         7 . The method of  claim 1 , wherein the system comprises a radio access network intelligent controller device. 
     
     
         8 . A system, comprising:
 a processor; and   a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
 determining a beam failure inference based on channel state information, wherein the channel state information is associated with an antenna array; 
 selecting, in response to the beam failure inference, a recovery beam pattern comprising an attenuated signal strength at a position associated with a security violation; and 
 switching the antenna array to the recovery beam pattern. 
   
     
     
         9 . The system of  claim 8 , wherein selecting the recovery beam pattern comprises selecting the recovery beam pattern from a group of predetermined recovery beam patterns associated with the antenna array. 
     
     
         10 . The system of  claim 9 , wherein the group of predetermined recovery beam patterns are predetermined based on aggregated channel state information indicating strength of wireless signals received at mobile devices in communication with the antenna array. 
     
     
         11 . The system of  claim 8 , wherein the operations further comprise tagging traffic originating from a portion of the recovery beam pattern comprising the attenuated signal strength. 
     
     
         12 . The system of  claim 8 , wherein the recovery beam pattern further comprises a spatial distribution based on a distribution of mobile devices in wireless communication with the antenna array. 
     
     
         13 . The system of  claim 8 , wherein selecting the recovery beam pattern is based at least in part on time of day information. 
     
     
         14 . The system of  claim 8 , wherein the recovery beam pattern is based on failure position information associated with a mobile device communication failure. 
     
     
         15 . A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:
 determining, based on channel state information data and beam pattern data associated with an antenna array, a group of recovery beam patterns for the antenna array,   wherein different recovery beam patterns of the group of recovery beam patterns are applicable under different conditions,   wherein the different conditions comprise security violations associated with devices in communication with the antenna array;   receiving security violation information indicating a current security violation associated with a device in communication with the antenna array;   in response to receiving the security violation information, selecting a recovery beam pattern from the group of recovery beam patterns, wherein the recovery beam pattern is applicable to a condition associated with the current security violation; and   switching the antenna array to the recovery beam pattern.   
     
     
         16 . The non-transitory machine-readable storage medium of  claim 15 , wherein the recovery beam pattern comprises an attenuated signal strength at a position associated with the current security violation. 
     
     
         17 . The non-transitory machine-readable storage medium of  claim 15 , wherein the condition associated with the current security violation comprises a security violation type, and wherein the security violation information comprises the security violation type. 
     
     
         18 . The non-transitory machine-readable storage medium of  claim 15 , wherein the security violation information comprises a position of the device in communication with the antenna array. 
     
     
         19 . The non-transitory machine-readable storage medium of  claim 15 , wherein the operations further comprise identifying, based on current channel state information, a beam failure inference that predicts a failure of the antenna array. 
     
     
         20 . The non-transitory machine-readable storage medium of  claim 15 , wherein determining the group of recovery beam patterns for the antenna array comprises using an output from a machine learning process applied to the channel state information and the beam pattern data.