Handling of radio frequency front-end group delays for round trip time estimation
摘要
說(shuō)明書(shū)
Since the network node (e.g., any of the gNodeBs 202-206) can be the transmitter 502 or the receiver 504, terms “network transmission group delay” (generically denoted by txgd(i,k) above, now particularized to refer to network node) and “network reception group delay” (generically denoted by rxgd(i,k) above, now particularized to refer to network node) will be used for convenience to refer to transmission and reception delays occurring at the network node. That is, the network transmission GD indicates the time interval between a measured transmission time of a signal (e.g., measured RTTM transmit time) and the actual transmission time of the signal (e.g., actual RTTM transmit time). Also, the network reception GD indicates the time interval between an actual arrival time of a signal (e.g., actual RTTR arrival time) and the measured arrival time of the signal (e.g., measured RTTR arrival time). The term “network total group delay” will be used to refer to the sum of the network transmission and reception GDs, i.e.: network total GD=network transmission GD+network reception GD??(8).
