| 摘要 |
The present invention relates to a communication device ( 1 ) for transmitting and receiving data in a communication system and a corresponding communication method. In the communication system, which can be a wireless or a wired communication system, a random access channel is provided, which comprises a plurality of access resources. The access resources are divided in at least two access resource groups, each access resource groups corresponding to a different access service class with a respective access probability. The communication device ( 1 ) according to the present invention, comprises selecting means ( 5 ) for randomly selecting an access resource from an access resource group corresponding to the current access service class of the communication device ( 1 ), transmitting means ( 3 ) for transmitting a random access burst in said selected access resource and detecting means ( 6 ) for detecting a specific event, whereby the current access service class of the communication device ( 1 ) is changed into another access service class when said specific event is detected by the detecting means ( 6 ). The present invention proposes a simple and flexible scheme for the adaptation of the performance of a communication device ( 1 ) in the random access procedure in the case of certain events. |
