Abstract: Disclosed are a method and device for configuring a Donor base station or a Donor cell for a mobile relay node. The method includes: an operation administration and maintenance (OAM) system obtains position information about a mobile relay node (RN) and determines a standby Donor base station or a standby Donor cell which can be accessed by the mobile RN according to the position information thereof; and the OAM system indicates the standby Donor base station or the standby Donor cell to a serving Donor base station of the mobile RN or indicates the standby Donor base station or the standby Donor cell to the serving Donor base station of the mobile RN through the mobile RN, so that the serving Donor base station of the mobile RN selects a target Donor base station or a target Donor cell for the mobile RN. By way of the present invention, the DeNB or the Donor Cell can be configured for the mobile RN when the mobile RN is moving.

Abstract: The invention discloses a method of estimating carrier frequency offset for subscriber terminal, including: determining number of effective base stations from which more than one signals are received by a subscriber terminal; combining the signals of each station corresponding to said number of effective base stations; calculating a rough estimation value of the carrier frequency offset based on combined signal. The invention also discloses a device of estimating carrier frequency offset for subscriber terminal, including: decision module, used to determine the number of effective base stations from which more than one signals received by subscriber terminal, combining module, used to combine the signals of the effective base station and output the combined signal to the carrier frequency offset acquiring module; carrier frequency offset acquiring module, used to estimate the carrier frequency offset of the merged signal.