| CPC H04W 56/001 (2013.01) [H04J 11/005 (2013.01); H04L 5/005 (2013.01); H04L 5/0073 (2013.01); H04L 43/16 (2013.01); H04W 24/10 (2013.01); H04W 56/00 (2013.01)] | 45 Claims | 

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               8. A method for sending a signal, comprising: 
            determining, by a first base station, a first configuration for a first common signal, the first common signal comprises a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), the first configuration comprises time-frequency resource information about a time-frequency resource for the first common signal and carrier type information of a carrier carrying the first common signal; 
                sending, by the first base station, the first configuration to a user equipment (UE); 
                sending, by the first base station, a second common signal before sending the first configuration; and 
                sending, by the first base station, the first common signal to the UE according to the first configuration; 
                wherein the sending of the second common signal uses a third configuration, and a periodicity of the second common signal is greater than a common signal periodicity corresponding to the first configuration. 
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