Methods and apparatuses for P-CCPCH-aided channel estimation in wireless systems

摘要

The present disclosure provides methods and apparatuses for performing channel estimation in a wireless environment using a Primary Physical Common Control Channel (P-CCPCH) to aid in channel estimation. For example, according to an example method provided by the present disclosure, a user equipment (UE) may receive a pilot signal and a Primary Physical Common Control Channel (P-CCPCH) signal from a network entity. In an aspect, the P-CCPCH signal may include initial broadcast channel (BCH) data layered thereon. Furthermore, the UE may predict estimated P-CCPCH data based on the initial BCH data. Additionally, in an aspect, the UE may estimate a channel based on at least the estimated P-CCPCH data and the pilot signal. As such, more reliable channel estimation is possible in wireless systems, such as at UE locations at the geographical periphery of a network entity serving area.

主权项

1. A method of channel estimation in a wireless environment, comprising:
receiving, at a user equipment (UE), a pilot signal and an initial Primary Physical Common Control Channel (P-CCPCH) signal from a network entity, wherein the P-CCPCH signal comprises initial broadcast channel (BCH) data; predicting, based on at least the initial BCH data, subsequent P-CCPCH data to be received in a subsequent P-CCPCH signal at a time subsequent to the UE receiving the initial P-CCPCH signal; computing a first scaling constant based on the pilot signal and a second scaling constant based on the predicted subsequent P-CCPCH data; and performing channel estimation of a channel based at least in part on applying the first scaling constant to the pilot signal and the second scaling constant to the subsequent P-CCPCH signal.