Patent ID: 9591620
Date: 2017-03-07
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for decoding a Primary Common Control Physical Channel, PCCPCH, the method comprising: monitoring by a user equipment, UE, a scrambling code transmitted by a target cell; synchronizing with a neighbor cell by the UE, to acquire a slot and frame timing of the neighbor cell; detecting and flagging, by the UE, a scrambling code collision between the target cell and the neighbor cell; checking, by the UE, that broadcast information of the target cell has been applied for decoding the PCCPCH; and if the broadcast information of the target cell has been applied, reconstructing, by the UE, a transmitted PCCPCH sequence to create a new pilot channel estimation to be used for computing a channel estimation based on the reconstructed PCCPCH sequence of the target cell, wherein a channel estimation of a Primary Common Pilot Channel, P-CPICH, and the channel estimation based on the reconstructed PCCPCH sequence of the target cell are combined in order to compute a channel estimation of a newly appearing cell with a colliding scrambling code, and an algorithm for combining the channel estimation of the P-CPICH and the channel estimation based on the reconstructed PCCPCH sequence of the target cell includes subtracting the channel estimation of the P-CPICH and the channel estimation based on the reconstructed PCCPCH sequence of the target cell to which defined weights are applied, respectively.