Predictive back-off reporting in telecommunication systems

Abstract

Various communication systems may benefit from selectively monitoring alternative links. In certain example embodiments, an apparatus may comprise at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to determine that at least one obstacle has entered at least one predefined region and transmit to at least one network entity at least one indication comprising at least one predicted-power back off (P-PBO) value. The at least one memory and the computer program code are further configured to, with the at least one processor, cause the apparatus to generate at least one predictive-PBO report (P-PBOR) and transmit the at least one P-PBOR to the at least one network entity.

1 . An apparatus, comprising:
 at least one processor; and   at least one memory including computer program code,   wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to:   determine that at least one obstacle has entered at least one predefined region;   transmit to at least one network entity at least one indication comprising at least one predicted-power back off (P-PBO) value;   generate at least one predictive-PBO report (P-PBOR); and   transmit the at least one P-PBOR to the at least one network entity prior to a maximum permissible exposure event,   wherein the at least one P-PBOR provides an indication of a predicted severity of the maximum permissible exposure event over time with respect to movement of the at least one obstacle.   
     
     
         2 . The apparatus of  claim 1 , wherein the at least one predefined region is one or more of:
 configured by the apparatus;   configured by the at least one network entity;   based upon at least one current Tx power threshold;   based upon at least one current EIRP threshold;   based upon at least one P cmax  threshold; and   defined according to one or more of at least one user equipment, at least one array type, and at least one current array configuration.   
     
     
         3 . The apparatus of  claim 1 , wherein the at least one P-PBOR is a maximum predicted PBO based upon one or more of speed of at least one user, trajectory of at least one user, speed of at least one object, and trajectory of at least one object, and is associated with at least one time stamp. 
     
     
         4 . The apparatus of  claim 3 , wherein the at least one time stamp comprises one or more of at least one frame number, at least one subframe number, at least one frame offset, at least one subframe offset, at least one slot number, at least one slot offset, and at least one subslot offset. 
     
     
         5 . The apparatus of  claim 1 , wherein the at least one P-PBOR comprises at least one vector comprising the at least one P-PBO from a first time associated with determining that at least one obstacle has entered at least one predefined region (t 1 ) to a second time associated with a maximum PBO value (t 2 ). 
     
     
         6 . The apparatus of  claim 1 , wherein the at least one P-PBOR is associated with at least one interval value that is based upon one or more of at least one PBO offset and at least one time offset, and is configured by the at least one network entity. 
     
     
         7 . The apparatus of  claim 1 , wherein the at least one P-PBOR is associated with at least one interval value configured by the apparatus based upon one or more of trajectory of at least one user, trajectory of at least one obstacle, speed of at least one user, and speed of at least one obstacle. 
     
     
         8 . The apparatus of  claim 1 , wherein the at least one P-PBO is based upon one or more of trajectory of at least one user, trajectory of at least one obstacle, speed of at least one user, and speed of at least one obstacle. 
     
     
         9 . The apparatus of  claim 1 , wherein the at least one P-PBO is updated upon one or more of the trajectory of the at least one user is changing, trajectory of at least one obstacle is changing, periodic monitoring, and at least one network request. 
     
     
         10 . The apparatus of  claim 1 , wherein the at least one P-PBOR is transmitted upon determining that one or more of at least one user and at least one obstacle has entered the at least one of predefined region. 
     
     
         11 . The apparatus of  claim 1 , wherein the at least one P-PBOR is transmitted upon one or more of:
 the one or more of at least one user and at least one obstacle crossing into the at least one predefined region; and   according to at least one threshold configured by the at least one network entity.   
     
     
         12 . The apparatus of  claim 1 , wherein the at least one P-PBOR is transmitted according to a periodicity associated according to one or more of:
 at least one time-based threshold;   at least one fixed PBO threshold;   at least one variable PBO threshold;   at least one threshold configured by the at least one network entity;   at least one threshold configured by the apparatus; and   speed of the at least one user.   
     
     
         13 . The apparatus of  claim 1 , wherein the at least one P-PBO is projected based upon one or more of trajectory of at least one user, trajectory of at least one obstacle, speed of at least one user, and speed of at least one obstacle. 
     
     
         14 . The apparatus of  claim 1 , wherein the at least one P-PBOR is transmitted before one or more of at least one user and at least one obstacle enters the at least one predefined region. 
     
     
         15 . The apparatus of  claim 1 , wherein the at least one P-PBO is a maximum P-PBO based upon one or more of trajectory of at least one user, trajectory of at least one obstacle, speed of at least one user, speed of at least one obstacle, and at least one time indicator. 
     
     
         16 . The apparatus of  claim 1 , wherein the at least one time indicator comprises one or more of at least one frame number, at least one subframe number, at least one slot number, at least one slot offset, and at least one subslot offset. 
     
     
         17 . The apparatus of  claim 1 , wherein the at least one P-PBOR further comprises one or more of at least one vector of PBO values, at least one vector of uplink duty cycle values, at least one vector of subframe offsets, and at least one P cmax . 
     
     
         18 . The apparatus of  claim 1 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the apparatus to:
 receive at least one indication of at least one alternative link for testing.   
     
     
         19 . The apparatus of  claim 1 , wherein the at least one P-PBOR comprises at least one of:
 at least one maximum P-PBO value associated with at least one future subframe number based upon an estimated trajectory of the at least one obstacle associated with at least one array of the apparatus at; and   one or more vectors of at least one worst possible PBO associated with at least one array of the apparatus at one or more of at least one particular frame number and at least one particular subframe number.   
     
     
         20 . An apparatus, comprising:
 at least one processor; and   at least one memory including computer program code,   wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to:   receive from at least one user equipment at least one indication comprising at least one predicted-power back off (P-PBO) value;   determine at least one alternative link to be monitored upon at least one event being triggered; and   receive at least one predictive-PBO report (P-PBOR) from the at least one user equipment.