A method of decoding of a video or picture bitstream implemented by a decoding device, the bitstream including a current sequence parameter set (SPS) comprising syntax elements that apply to a video sequence, the method comprising: obtaining a first syntax element used to determine the maximum number of temporal sublayers that is allowed to be present in each coded layer video sequence) referring to the current SPS, wherein the value of the first syntax element is in the range of 0 to a first value, wherein the first value is the value of a second syntax element used to determine the maximum number of temporal sublayers that is allowed to present in a layer in each coded video sequence referring to a video parameter set , when the second syntax element is referred to by the SPS; decoding the bitstream based on the value of the first syntax element.