| 摘要 |
The invention relates to a mobile communication system and a base station in a mobile communication system, said mobile communication system comprising base stations (BTS-1, BTS-2), a mobile services switching centre (MSC), a digital transmission system (102) connecting the base station (BTS-1, BTS-2) to the mobile services switching centre (MSC), and a network termination of an ISDN basic rate access. In order for an advantageous ISDN data link connection to be achieved, the digital transmission system (100, 101, 102) comprises at least one data link connection (101), operating at the rate of the ISDN basic rate access, and digital time division trunk circuits (102), at least one base station (BTS-1, BTS-2) comprises an ISDN basic rate access block for connecting the base station to said data link connection (101) operating at the rate of the ISDN basic rate access, and the digital transmission system (100, 101, 102) comprises a switching means (100) positioned between the base station and the mobile services switching centre for connecting said ISDN basic rate access block of the base station through the data link connection (101) operating at the rate of the ISDN basic rate access to a digital trunk circuit (102).
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