CPC H04L 5/0055 (2013.01) [H04L 1/1858 (2013.01); H04L 5/0053 (2013.01); H04L 5/0005 (2013.01); H04L 5/0064 (2013.01); H04L 5/0092 (2013.01); H04L 2001/125 (2013.01); H04W 28/04 (2013.01)] | 34 Claims |
1. A method, comprising:
receiving, at a User Equipment (UE), a message regarding a second differentiating factor;
transmitting, by the UE, a first acknowledgement (ACK) or negative acknowledgement (NACK) feedback using a first differentiating factor, wherein the first differentiating factor is determined based on a physical downlink control channel (PDCCH); and
transmitting, by the UE, a second ACK or NACK feedback using the second differentiating factor, wherein the second differentiating factor is a cyclic shift.
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