| CPC H04W 74/006 (2013.01) [H04W 74/002 (2013.01); H04W 74/0808 (2013.01); H04W 74/0833 (2013.01)] | 18 Claims |

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18. A wireless access node comprising a processor and a memory, wherein the processor is configured to read computer code from the memory to perform steps comprising:
receiving, from a mobile station, a first message; and
in response to receiving the first message, transmitting, to the mobile station, a second message comprising an indication of a listen-before-talk (LBT) mode for the mobile station,
wherein at least one bit within the second message represents, at least in part, the LBT mode, the at least one bit is located within a block of bits that are reserved for a cell radio network temporary identifier (C-RNTI), and the at least one bit is located on at least one transmission bit location at a beginning of the block of bits or at an end of the block of bits.
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