FIG. 7 is a block diagram illustrating an apparatus 700 according to some embodiments of the present disclosure. As shown in FIG. 7, the apparatus 700 may comprise a determining unit 701 and a transmitting unit 702. In an exemplary embodiment, the apparatus 700 may be implemented in a network node such as the network node as describe with respect to FIG. 2. The determining unit 701 may be operable to carry out the operation in block 202, and the transmitting unit 702 may be operable to carry out the operation in block 204. In another exemplary embodiment, the apparatus 700 may be implemented in a terminal device such as the terminal device as describe with respect to FIG. 4. The determining unit 701 may be operable to carry out the operation in block 402, and the transmitting unit 702 may be operable to carry out the operation in block 404. Optionally, the determining unit 701 and/or the transmitting unit 702 may be operable to carry out more or less operations to implement the proposed methods according to the exemplary embodiments of the present disclosure.
