Doppler shift estimation based on OMRS and frequency shift

摘要

LIE MU-MIMO (TM7/TM8), can use, periodic SRS with or without SRS antenna selection, with short to long cycles (2ms to 160ms), non-frequency-hopping (wideband) or frequency-hoping, and can use aperiodic SRS from Rel. 10 UEs. The SRS resources are limited and should be assigned wisely. When a new UE joins a sector-carrier, the SRS assignment strategies can be incremental in nature, orcan require SRS reconfiguration for certain UEs (dynamic SRS re-assignments). The actual SRS assignments can be based on a simple planning independent of the specificities of UEs, or based on the characteristics of the "predicted" channel and traffic characteristics of the UEs. UE speed can be determined based on channel characteristics.