| 摘要 |
In order to store data in a mobile telecommunications system, a data storage unit (HLR) has data functions ( 72, 74 ) providing data redundancy therebetween, control functions ( 79, 80 ) and signalling point ( 30, 31, 32 ) to enable the data storage unit to pass data to and from a mobile telecommunications network under the control of the control function. The control functions are physically separate from the data functions. The data functions ( 72, 74 ) may operate on the basis that one has a primary data function, a second has a primary standby function to achieve synchronised updating. The use of separate and hence distributed functions enables greater flexibility in the retrieval of data from the data storage unit (HLR).
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