Mobile terminal cell treselection adjusting method and device
A cell reselection and duration adjustment technology, applied in wireless communication, electrical components, etc., to achieve the effect of ensuring continuity and avoiding off-network search operations
Active Publication Date: 2017-05-24
SPREADTRUM COMM (SHANGHAI) CO LTD
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[0005] The embodiment of the present invention solves the problem that the UE frequently performs off-network search operations
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[0045] In the prior art, the protocol clearly stipulates that the target cell required for reselection must continuously meet the reselection criteria and residency conditions within Treselection. Usually, the Treselection provided by the network side is a historical experience value, and the Treselection configured for each cell may also be different.
[0046] When it is detected that the UE is in a high-speed motion state, the network side configures a speed state factor (SpeedStateScaleFactors) in the system message to reduce the Treselection of the UE, but not every cell will configure the speed state factor, and the speed state factor is basically Static configuration, once determined, will not change for a long time. Since different UEs move at different speeds, the value SpeedStateScaleFactors×Treselection will not apply to all UEs. To sum up, the existing Treselection configuration method is likely to cause frequent off-network search operations for UEs moving at high...
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The invention provides a mobile terminal cell treselection adjusting method and device. The method comprises the steps that when the detection result indicates that the number of cell reselection is greater than a preset value in the preset duration and a target cell exists, whether the timing duration of a reselection timer reaches first treselection is judged, wherein the first treselection is treselection in which a current serving cell reselects to the target cell; when the timing duration does not reach the first treselection and the detection result indicates that the signal intensity value of the current serving cell is less than a preset threshold, disconnecting the network and finding the network again so as to reselect to the target cell; and third reselection is calculated to act as the actual reselection of the target cell according to the first reselection and second reselection of the target cell issued by a network side, wherein the third reselection is less than or equal to the second reselection. With application of the method and the device, the problem of frequent operation of disconnecting the network and finding the network of UE can be effectively avoided.
Description
technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for adjusting the trigger time length of cell reselection of a mobile terminal. Background technique [0002] The cell reselection on the user equipment (User Equipment, UE) side has a process of measurement initiation and measurement evaluation. When the signal strength value of the serving cell where the UE camps is lower than a certain threshold, the reselection measurement is initiated. When detecting a neighboring cell that satisfies the reselection condition and the camping condition, the UE starts the cell reselection timer. When the timing duration reaches the reselection trigger duration (Treselection), if within the range of Treselection, the evaluated cell continues to meet the reselection condition and the residence condition, then the UE initiates cell reselection for handover to the target cell. [0003] In the existing protocol, on...
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IPC IPC(8): H04W36/00H04W36/30
Inventor 魏二岭
Owner SPREADTRUM COMM (SHANGHAI) CO LTD