| CPC H04W 8/005 (2013.01) [H04L 5/0053 (2013.01); H04W 24/08 (2013.01)] | 12 Claims | 

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               1. A method implemented in a first wireless transmit receive unit (WTRU), the method comprising: 
            sending an announce request to a node residing in a cellular core network; 
                sending a proximity service (ProSe) app code to enable a second WTRU to discover the first WTRU; and 
                receiving a peer discovery notification from the node; 
                wherein the announce request includes an indication that the first WTRU is requesting peer discovery and an indication that the first WTRU is anonymously discoverable. 
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