| 摘要 |
This invention relates to an interface for interfacing between two different types of network, such as a GSM cellular radio network and an integrated services digital network (ISDN). The interface communicates between first (B1, B2) and second (Bm) data channels and first (D) and second (Dm) control channels. It comprises: means for mapping control information between the first and second control channels; means for mapping data, in a first state of operation, between the first and second data channels under the control of control information on the control channels; and means for mapping data, in a second state of operation, between the first control channel (D) and the second data channel (Bm) under the control of control information on the control channel.
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