Patent ID: 7715468

Claim:
A radio transmitter/receiver comprising: an adaptive modulation-type transmission unit connected to an antenna; and a receiving unit connected to said antenna, wherein said adaptive modulation-type transmission unit includes: a high frequency unit connected to said antenna, a modulation unit connected to said high-frequency unit, a radio frame coding unit connected to said modulation unit for converting the transmission data into a format of a modulation scheme corresponding to propagation path conditions in an associated radio transmission path, and a Quality of Service (QoS) control unit for supplying the transmission data to said radio frame coding unit in an order taking QoS into consideration, wherein said QoS control unit has a first operation mode for outputting the transmission data in an order of input and a second operation mode for outputting the transmission data in the order taking QoS into consideration, said first and second operation modes being switchable to each other in accordance with information transmission conditions in said radio transmission path.