Downlink and synchronization techniques for narrowband wireless communications

摘要

Various techniques for narrowband communication in wireless communication networks are provided. Narrowband communication may be transmitted using a single RB of multiple resource blocks (RBs) used for broadband communication. In order to provide effective device discovery and synchronization using narrowband communication, a synchronization signal, eg, primary synchronization signal (PSS) or secondary synchronization signal (SSS) is transmitted within a single resource block. obtain. The synchronization signal may be transmitted, for example, using multiple orthogonal frequency division multiplexing (OFDM) symbols within a single RB. A common reference signal (CRS) may also be present in a single resource block, which in some examples may puncture the synchronization signal. In another example, the synchronization signal may be mapped to a single resource block non-CRS symbol. [Selection] Figure 4