Beam recovery for partial control channel failure

Abstract

Various embodiments disclosed herein provide for a beam recovery when there has been a partial control channel failure. Transient obstructions, and other interference effects can cause the failure of a beam pair link which can comprise a transmit beam and a receive beam associated with respective antennas on a transmitter and receiver. A group of control channels (downlink control channels) (configured as a control resource set “CORESET”) on a group of beam pair links can be associated with a group of uplink control resources (Physical Uplink Control Channel resources). When a subset of the CORESET group fails, the user equipment (UE) device can find another PUCCH that is associated with a working CORESET to send an indication to the network about the failure. When the network receives the indication, the network can switch the failed CORESET to a new beam pair link.

What is claimed is: 
     
         1 . A method, comprising:
 determining, by a user equipment comprising a processor, that a downlink control channel of a beam pair link has met a failure criterion; and   predicting, by the user equipment, that an uplink control channel of the beam pair link is likely to fail based on the downlink control channel having met the failure criterion.   
     
     
         2 . The method of  claim 1 , further comprising, in response to the predicting, switching, by the user equipment, from the uplink control channel to another uplink control channel other than the uplink control channel of another beam pair link other than the beam pair link. 
     
     
         3 . The method of  claim 1 , wherein the determining that the downlink control channel has met the failure criterion is based upon a signal strength of the downlink control channel. 
     
     
         4 . The method of  claim 1 , wherein the determining that the downlink control channel has met the failure criterion is based upon a signal to interference and noise ratio of the downlink control channel. 
     
     
         5 . The method of  claim 1 , wherein the determining that the downlink control channel has met the failure criterion is based upon a failed error correction of the downlink control channel. 
     
     
         6 . The method of  claim 1 , wherein the determining that the downlink control channel has met the failure criterion is based upon a failed blind decoding candidate of the downlink control channel. 
     
     
         7 . The method of  claim 1 , further comprising facilitating, by the user equipment, transmitting a notification indicating the that the downlink control channel has met the failure criterion to network equipment. 
     
     
         8 . A user equipment, comprising:
 a processor; and   a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
 determining that a downlink resource slot of a beam pair link has failed; and 
 predicting that an uplink resource slot of the beam pair link is likely to fail based on the downlink resource slot having failed. 
   
     
     
         9 . The user equipment of  claim 8 , wherein the operations further comprise, in response to the predicting, swapping from the uplink resource slot to another uplink resource slot of another beam pair link. 
     
     
         10 . The user equipment of  claim 8 , wherein the determining that the downlink resource slot has failed is based upon a signal strength associated with the downlink resource slot. 
     
     
         11 . The user equipment of  claim 8 , wherein the determining that the downlink resource slot has failed is based upon a signal to interference and noise ratio associated with the downlink resource slot. 
     
     
         12 . The user equipment of  claim 8 , wherein the determining that the downlink resource slot has failed is based upon a failed error correction associated with the downlink resource slot. 
     
     
         13 . The user equipment of  claim 8 , wherein the determining that the downlink resource slot has failed is based upon a failed blind decoding candidate associated with the downlink resource slot. 
     
     
         14 . The user equipment of  claim 8 , wherein the operations further comprise sending an indication the that the downlink resource slot has failed to a base station. 
     
     
         15 . A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor of a user equipment, facilitate performance of operations, comprising:
 determining that a downlink resource of a beam pair link has satisfied a failure condition; and   predicting that an uplink resource of the beam pair link is likely to fail based on the downlink resource having satisfied the failure condition.   
     
     
         16 . The non-transitory machine-readable medium of  claim 15 , wherein the operations further comprise, in response to the predicting, changing from the uplink resource to another uplink resource of another beam pair link. 
     
     
         17 . The non-transitory machine-readable medium of  claim 15 , wherein the determining that the downlink resource has satisfied the failure condition is based upon a signal strength associated with the downlink resource. 
     
     
         18 . The non-transitory machine-readable medium of  claim 15 , wherein the determining that the downlink resource has satisfied the failure condition is based upon a signal to interference and noise ratio associated with the downlink resource. 
     
     
         19 . The non-transitory machine-readable medium of  claim 15 , wherein the determining that the downlink resource has satisfied the failure condition is based upon a failed error correction associated with the downlink resource. 
     
     
         20 . The non-transitory machine-readable medium of  claim 15 , wherein the determining that the downlink resource has satisfied the failure condition is based upon a failed blind decoding candidate associated with the downlink resource.