Patent ID: 7274730

Claim:
A Quality of Service (QoS) control system used for a radio transmitter/receiver, comprising: a QoS control unit for supplying a modulator of said radio transmitter/receiver with transmission data in an order taking QoS into consideration; and a determining unit connected to said QoS control unit for determining whether a QoS control operation of the transmission data is reguired or not in accordance with information transmission conditions in an associated radio path, wherein the QoS control operation of the transmission data by said QoS control unit is performed selectively in accordance with the information transmission conditions in the radio transmission path, and 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 the information transmission conditions in said radio path.