Processing method and system and a user equipment and a base station signature sequences

The invention provides a method and system for processing a signature sequence, user equipment and a base station, wherein the method comprises the steps of: obtaining the signature sequence on a hybrid automatic repeat request indication channel of an enhanced dedicated channel according to configuration information used for scheduling a physical uplink channel of the enhanced dedicated channel and pre-allocated to user equipment, training sequence deviation and number of the training sequence deviations in a cell where the user equipment is; and decoding a received enhanced dedicated channel transport block sent by the user equipment, sending the signature sequence or an antitone sequence of the signature sequence to the user equipment according to the decoding result so as to solve the defect that a Node B allocates the same signature sequences of all UE sharing same scheduling E-PUCH (Enhanced-Physical Uplink Channel) resources in the prior art and further effectively avoid confusion of sending AK (acknowledge)/NACK (non-knowledge) information of all UE by the Node B.