Which of the following are the design principles of LTE tracking area? (Multiple choice)
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A base station can only belong to one tracking area
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The concept of keeping the same tracking area for the LTE access network and core network
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When the UE is in an idle state, the core network can know the tracking area where the UE is located
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When a UE in an idle state needs to be paged, it must be paged in all cells in the tracking area where the UE is registered
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In the LTE system, the location update signaling caused by the location change should be minimized