US Patent 9894683 Channel configuration in a wireless network

According to some aspects, a base station may transmit a control message to a wireless device. The control message may comprise configuration parameters for a control channel associated with sets of resource blocks in one or more subframes of a plurality of subframes. The configuration parameters may indicate the one or more subframes in which the resource blocks of the control channel are configured. The configuration parameters may further indicate a starting symbol, such as an offset number of symbols, for the control channel and an associated downlink data channel within the one or more subframes. The base station may transmit, via the control channel, scheduling information for a packet. The base station may receive the packet and transmit an acknowledgement via a feedback channel beginning at the first symbol of a subframe in the plurality of subframes.