To minimize overhead in the allocation of channels, forward and reverse link time slots are automatically assigned in pairs. In particular, rather than requiring a separate process for allocating reverse link channels for the sending of acknowledgment messages in response to receipt of a forward link...http://www.google.com/patents/US7554916?utm_source=gb-gplus-sharePatent US7554916 - Automatic reverse channel assignment in a two-way TDM communication system
