Method, Apparatus and System for Reporting Beam Reference Signal Receiving Power

Abstract

Machine-readable media, methods, apparatus and system for beam acquisition in a wireless system are disclosed. In some embodiments, a base station may comprise a transceiver to transmit, to a user equipment (UE), a plurality of beam reference signals (BRSs) via a plurality of transmission beams; and to receive, from the UE, a report to report receiving information associated with at least one of the BRSs on at least one of the transmission beams, wherein the report comprises an antenna identifier to identify a directional antenna panel or an antenna port associated with the directional antenna panel of the UE which receives the at least one of the BRSs on the at least one of the transmission beam.

1 . (canceled) 
     
     
         2 . A method performed by a user equipment (UE) in a cellular communications network, the method comprising:
 receiving, from a base station and via at least one directional antenna panel of the UE, a plurality of beam reference signals (BRSs) mapped on a plurality of transmission beams;   measuring at least one of the plurality of BRSs;   generating a report including: (i) one or more results associated with the measurement of the at least one of the plurality of BRSs, and (ii) a BRS identifier of the at least one of the plurality of BRSs; and   transmitting the report to the base station.   
     
     
         3 . The method of  claim 2 , wherein the at least one of the plurality of BRSs is predetermined for measurement by the UE. 
     
     
         4 . The method of  claim 2 , wherein a number of the plurality of BRSs to be measured is predetermined, and wherein measuring at least one of the plurality of BRSs comprises:
 selecting, based on the predetermined number of the plurality of BRSs, the at least one of the plurality of BRSs for measurement.   
     
     
         5 . The method of  claim 2 , wherein the report further comprises a transmission beam identifier of a respective transmission beam on which the at least one of the plurality of BRSs is mapped. 
     
     
         6 . The method of  claim 2 , further comprising:
 determining that the one or more results associated with the measurement of the at least one of the plurality of BRSs is greater than a predetermined threshold.   
     
     
         7 . The method of  claim 2 , wherein measuring at least one of the plurality of BRSs comprises:
 calculating a receiving quality of the at least one of the plurality of BRSs.   
     
     
         8 . The method of  claim 2 , wherein measuring at least one of the plurality of BRSs comprises:
 calculating a receiving power of the at least one of the plurality of BRSs.   
     
     
         9 . A method performed by one or more device processors in a cellular communications network, the method comprising:
 receiving, from a base station and via at least one directional antenna panel, a plurality of beam reference signals (BRSs) mapped on a plurality of transmission beams;   measuring at least one of the plurality of BRSs;   generating a report including: (i) one or more results associated with the measurement of the at least one of the plurality of BRSs, and (ii) a BRS identifier of the at least one of the plurality of BRSs; and   transmitting the report to the base station.   
     
     
         10 . The method of  claim 9 , wherein the at least one of the plurality of BRSs is predetermined for measurement. 
     
     
         11 . The method of  claim 9 , wherein a number of the plurality of BRSs to be measured is predetermined, and wherein measuring at least one of the plurality of BRSs comprises:
 selecting, based on the predetermined number of the plurality of BRSs, the at least one of the plurality BRSs for measurement.   
     
     
         12 . The method of  claim 9 , wherein the report further comprises a transmission beam identifier of a respective transmission beam on which the at least one of the plurality of BRSs is mapped. 
     
     
         13 . The method of  claim 9 , further comprising:
 determining that the one or more results associated with the measurement of the at least one of the plurality of BRSs is greater than a predetermined threshold.   
     
     
         14 . The method of  claim 9 , wherein measuring at least one of the plurality of BRSs comprises:
 calculating a receiving quality of the at least one of the plurality of BRSs.   
     
     
         15 . The method of  claim 9 , wherein measuring at least one of the plurality of BRSs comprises:
 calculating a receiving power of the at least one of the plurality of BRSs.   
     
     
         16 . A method performed by a base station in a cellular communications network, the method comprising:
 transmitting, to a user equipment (UE), a plurality of beam reference signals (BRSs) via a plurality of transmission beams; and   receiving, from the UE, a report reporting a measurement of at least one of the plurality of BRSs, wherein the report comprises: (i) one or more results associated with the measurement of the at least one of the plurality of BRSs, and (ii) a BRS identifier of the at least one of the plurality of BRSs.   
     
     
         17 . The method of  claim 16 , further comprising:
 utilizing the report to configure channel control information; and   transmitting the channel control information to the UE.   
     
     
         18 . The method of  claim 17 , wherein utilizing the report further comprises:
 selecting one or more transmission beam candidates at least in part based on the one or more results in the report; and   configuring channel control information to include an antenna identifier of a directional antenna panel or an antenna port associated with the transmission beam candidates.   
     
     
         19 . The method of  claim 17 , wherein utilizing the report further comprises:
 selecting one or more transmission beam candidates at least in part based on the measurement in the report; and   determining one or more transmission antenna panels for transmission between the base station and the UE at least in part based on a determination of whether the UE uses one or more directional antenna panels to receive the plurality of BRSs on the transmission beam candidates.   
     
     
         20 . The method of  claim 17 , wherein the-channel control information is associated with a channel state information-reference signal (CSI-RS) and/or an enhanced physical control channel (EPDCCH). 
     
     
         21 . The method of  claim 16 , wherein the measurement is a receiving power or a receiving quality of the at least one of the plurality of BRSs.