A method for transmitting the status of a radio bearer by a mobile terminal, comprising: determining (S501, S601) the number of tokens in a token bucket corresponding to the radio bearer after uplink resources are allocated in a current transmission period; and when the number of tokens is larger than zero: transmitting (S502, S603) first status information indicating that the number of tokens is larger than zero to a base station and comparing the number of tokens with a buffer size of the radio bearer; and dependent upon a result of the comparing between the number of tokens and the buffer size of the radio bearer: transmitting fifth status information indicating that the number of tokens is not larger than the buffer size of the radio bearer to the base station or transmitting sixth status information indicating that the number of tokens is larger than the buffer size of the radio bearer to the base station; or when the number of tokens is not larger than zero: transmitting (S502, S604) second status information indicating that the number of tokens is not larger than zero to the base station and comparing the buffer size of the radio bearer with zero; and dependent upon a result of the comparing between the buffer size of the radio bearer and zero: transmitting seventh status information indicating that the buffer size of the radio bearer is larger than zero to the base station or transmitting eighth status information indicating that the buffer size of the radio bearer is not larger than zero to the base station. determining (S501, S601) the number of tokens in a token bucket corresponding to the radio bearer after uplink resources are allocated in a current transmission period; and when the number of tokens is larger than zero: transmitting (S502, S603) first status information indicating that the number of tokens is larger than zero to a base station and comparing the number of tokens with a buffer size of the radio bearer; and dependent upon a result of the comparing between the number of tokens and the buffer size of the radio bearer: transmitting fifth status information indicating that the number of tokens is not larger than the buffer size of the radio bearer to the base station or transmitting sixth status information indicating that the number of tokens is larger than the buffer size of the radio bearer to the base station; or transmitting (S502, S603) first status information indicating that the number of tokens is larger than zero to a base station and comparing the number of tokens with a buffer size of the radio bearer; and dependent upon a result of the comparing between the number of tokens and the buffer size of the radio bearer: transmitting fifth status information indicating that the number of tokens is not larger than the buffer size of the radio bearer to the base station or transmitting sixth status information indicating that the number of tokens is larger than the buffer size of the radio bearer to the base station; or transmitting fifth status information indicating that the number of tokens is not larger than the buffer size of the radio bearer to the base station or transmitting sixth status information indicating that the number of tokens is larger than the buffer size of the radio bearer to the base station; or when the number of tokens is not larger than zero: transmitting (S502, S604) second status information indicating that the number of tokens is not larger than zero to the base station and comparing the buffer size of the radio bearer with zero; and dependent upon a result of the comparing between the buffer size of the radio bearer and zero: transmitting seventh status information indicating that the buffer size of the radio bearer is larger than zero to the base station or transmitting eighth status information indicating that the buffer size of the radio bearer is not larger than zero to the base station. transmitting (S502, S604) second status information indicating that the number of tokens is not larger than zero to the base station and comparing the buffer size of the radio bearer with zero; and dependent upon a result of the comparing between the buffer size of the radio bearer and zero: transmitting seventh status information indicating that the buffer size of the radio bearer is larger than zero to the base station or transmitting eighth status information indicating that the buffer size of the radio bearer is not larger than zero to the base station. transmitting seventh status information indicating that the buffer size of the radio bearer is larger than zero to the base station or transmitting eighth status information indicating that the buffer size of the radio bearer is not larger than zero to the base station.