| 摘要 |
The present invention relates to a cellular radio network, subscriber equipment for the cellular radio network, and a method for carrying out a location updating in the cellular radio network. In the cellular radio network of the invention, or at least in part of it, several coincident logical location area levels (I, II, III) are provided, these levels being hierarchical with respect to location area (LA1(L1), LA1(L2), LA2(L2), LA1(L3), LA2(L3), LA3(L3)) size. Location area density is thus different at different location area levels: large location areas are used at some location area levels whereas small location areas are in use at others, correspondingly. Users/terminal equipments (MS) may either have a relatively fixed allocation to certain location area levels, or the terminal equipment may dynamically select the location area level appropriate at a given moment. For instance, stationary or low-mobility users may use dense location area levels (small location areas), and fast-moving users may use less dense location area levels (large location areas).
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