Wireless communication method and device for blind detection of downlink signals
摘要
說(shuō)明書
There are many ways to determine a subcarrier spacing of a preamble signal. A way for determining the subcarrier spacing of the preamble signal is described below. In this embodiment of the present disclosure, the subcarrier spacing corresponding to the preamble signal symbol may be referred to as a first subcarrier spacing.
As an example, the first subcarrier spacing may be equal to a subcarrier spacing corresponding to a downlink signal. That is, it can be agreed in the system that the subcarrier spacing of the preamble signal is equal to a subcarrier spacing of the downlink signal. After obtaining the subcarrier spacing of the downlink signal, the network device can directly determine that the subcarrier spacing of the preamble signal is equal to the subcarrier spacing of the downlink signal.
As another example, the first subcarrier spacing may be a subcarrier spacing indicated by at least one of a radio resource control (RRC) signaling, a physical-layer signaling, and a medium access control (MAC) layer signaling.
As another example, the first subcarrier spacing may be a predefined subcarrier spacing. For example, the first subcarrier spacing may be a subcarrier spacing specified in the standard specification.
