Patent ID: 7653016

Claim:
Method of controlling access of at least one radio terminal to resources of a radio communication network to implement a communication service, the radio communication network comprising at least one base station, the radio terminal being organized to send a first access signal then, when it receives a positive acknowledgement of the first access signal from a base station, a second access signal substantially longer than the said first access signal, resources of the communication network being allocated to the radio terminal after receipt of the said second access signal at the base station, the method comprising: receiving at a base station the first access signal sent by a radio terminal; detecting, from the first access signal, a type of the communication service requested by the radio terminal; and at least one of the following operations, in conditional manner, according to the detected type of the communication service: measuring a receive power of the first access signal; comparing the measured receive power with a threshold; and inhibiting the transmission of a positive acknowledgement of the first access signal to the radio terminal, when the measured receive power is greater than the said threshold; wherein the first access signal is sent by the radio terminal along a partition of a partitioned random access channel, the said partition depending on the requested type of the communication service, in which each partition of the random access channel is characterized by a set of respective access parameters, such as a transmit sub-channel of the random access channel and a signature contained in the first access channel.