Downlink and uplink channel structures for downlink shared channel system

A method comprising the steps of:

• transmitting at a rate on a downlink shared channel having slots with each slot including a preamble locally identifying a wireless unit and data, wherein the downlink shared channel is associated with a dedicated downlink channel;
• transmitting on a dedicated control channel, associated with the dedicated downlink channel, information including power control bits that implement uplink power control and pilot bits;
• transmitting on a beacon channel a power fraction information, downlink activity information and code space information;
• and
• receiving on an uplink dedicated physical control channel, rate information calculated using said power fraction information, said downlink activity information and said code space information for transmitting on said downlink shared channel, and an acknowledgement information indicating the receipt of said data.