CPC H04W 52/0229 (2013.01) [H04J 13/0062 (2013.01); H04L 27/2607 (2013.01); H04W 72/0453 (2013.01); H04W 76/11 (2018.02)] | 13 Claims |
1. A method performed by a communication device in a wireless communication system, the method comprising:
transmitting a wake-up signal (WUS) in a subframe on a carrier, wherein the subframe includes a plurality of consecutive orthogonal frequency division multiplexing (OFDM) symbols and a plurality of consecutive subcarriers, and wherein the WUS includes a WUS sequence that is scrambled with a scrambling sequence, wherein an initial value of the scrambling sequence is based on a time unit index for a paging occasion (PO) associated with the WUS; and
transmitting a physical downlink control channel (PDCCH) in the PO associated with the WUS,
wherein, based on the carrier being in an in-band mode, the WUS exists in OFDM symbols from an Nth (N>1) OFDM symbol of the subframe to a last OFDM symbol of the subframe, and no WUS exists in OFDM symbols from a 1st OFDM symbol of the subframe to an (N−1)th OFDM symbol of the subframe, and
wherein, based on the carrier being in a guard-band mode or a stand-alone mode, the WUS exists in the OFDM symbols from the Nth (N>1) OFDM symbol of the subframe to the last OFDM symbol of the subframe, and a partial WUS exists on (N−1) consecutive OFDM symbols among the OFDM symbols from the Nth (N>1) OFDM symbol of the subframe to the last OFDM symbol of the subframe, in addition to existing in the OFDM symbols from the 1st OFDM symbol of the subframe to the (N−1)th OFDM symbol of the subframe.
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