FREQUENCY-HOPPING METHOD FOR LTE APERIODIC SOUNDING REFERENCE SIGNALS

摘要

A methodology that enables narrowband aperiodic sounding and frequency hopping through the use of additional RRC configuration, thus requiring little or no additional Ll overhead to support narrowband frequency hopping for aperiodic sounding transmissions. More specifically, a simple approach for extending the LTE periodic sounding reference signal methodology to include aperiodic sounding. One benefit of the proposed technique is that it enables each UE to perform aperiodic channel sounding in every sounding subframe using a frequency-hopped approach where the sounding bandwidth of the UE can be narrowed appropriately to match its link capability. Additional benefits of the new approach include better resource utilization, lower signaling overhead, faster channel information update rates, and lower blocking probabilities.