FRAME STRUCTURE FOR AN ADAPTIVE MODULATION WIRELESS COMMUNICATION SYSTEM

摘要

A method of simplifying the encoding of a predetermined number of bits of data into frames including adding error coding bits so that a ratio of the frame length times the baud rate of the frame times he bit packing ratio of the data divided the total bits of data is always an integer. The method may also convolutionally encode the bits of data so that the same equation is also always an integer.

主权项

1. A method of operating an on-demand based wireless cellular communication system for exchanging information between a base station and a plurality of mobile cellular phones, comprising:
at the base station: allocate downlink transmission resources to one or more receiving mobile cellular phones in downlink time slots of a frame, and allocate uplink transmission resources to one or more transmitting mobile cellular phones in uplink time slots of the frame; determine per mobile cellular phone uplink modulation schemes and per mobile cellular phone downlink modulation schemes for the uplink time slots and the downlink time slots; encode downlink data addressed to the one or more receiving mobile cellular phones according to a respective determined downlink modulation scheme and transmit the encoded downlink data in the downlink time slots; receive the uplink time slots with encoded uplink data from the one or more transmitting mobile cellular phones and decode the encoded uplink data according to a respective determined uplink modulation scheme; encode control information using a most robust modulation scheme available in the wireless cellular communication system, the control information providing the determined downlink modulation schemes for the one or more receiving mobile cellular phones and the determined uplink modulation schemes for the one or more transmitting mobile cellular phones; and transmit the encoded control information to the plurality of mobile cellular phones; at a receiving mobile cellular phone: receive the control information, receive the downlink encoded data addressed to the mobile cellular phone in the downlink time slots, and decode the downlink encoded data based on the respective determined downlink modulation scheme; and at a transmitting mobile cellular phone: receive the control information, encode the uplink data based on the respective determined uplink modulation scheme, and transmit the encoded uplink data to the base station in the uplink time slots.