| CPC H04W 24/08 (2013.01) | 12 Claims | 

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               1. A wireless device, comprising: 
            at least one antenna; 
                at least one radio coupled to the at least one antenna; and 
                a processor coupled to the at least one radio; 
                wherein the wireless device is configured to: 
              acquire a measurement gap (MG) configuration scheduling a measurement operation for at least one deactivated serving cell based on a network-controlled small gap (NCSG), and 
                  perform the measurement operation based on the NCSG in accordance with the MG configuration; 
                  wherein the MG configuration includes information on a measurement periodicity of NCSG-based measurement for a deactivated serving cell, and wherein the wireless device is configured to perform the measurement operation for the deactivated serving cell in accordance with the measurement periodicity; 
                  wherein the information includes information about a base periodicity of NCSG and a predefined measurement cycle for measurement of a de-activated serving cell, and the measurement periodicity is determined based on the base periodicity of NCSG and the predefined measurement cycle; and 
                  wherein the measurement periodicity is determined based on a largest integral multiple of the base periodicity smaller than or equal to a minimum value among the predefined measurement cycle for the at least one deactivated cell. 
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