Control method for periodic measurement

Abstract

The present invention discloses a control method for periodic measurement. The method comprises the following steps: the coverage area of a cell is previously divided into a central area, a soft frequency reuse switching area and a marginal area by a radio network controller (RNC); measurement control information used for controlling user equipment (UE) to report events to the RNC when the UE enters or leaves the switching area is sent by the RNC to the UE according to the area in which the UE is, and the measurement control information is 2D event measurement control information and/or 2F event measurement control information; the events are reported to the RNC by the UE according to the measurement control information received when the received signal code power (RSCP) of a primary common control physical channel (PCCPCH) meets event report requirements, namely the threshold limitation of the events carried by the measurement control information; the UE is controlled by the RNC to carry out periodic measurement for neighbouring cells in the switching area according to the events reported by the UE. The expenses of periodic report on idle signalling can be reduced by the method.

Description

technical field [0001] The present invention relates to a measurement technology in a mobile communication system, in particular to a control method for periodic measurement. Background technique [0002] At present, the dynamic soft frequency coverage technology (TFFR) is introduced into the TD-SCDMA system, which requires the intra-cell handover of the user equipment (UE) at the cell edge to reduce the co-channel interference level between adjacent cells. [0003] In the existing system using TFFR technology, when the UE is in the central area of ​​the serving cell, the system will configure a carrier frequency with half coverage for it. When the UE is in the handover area of ​​soft frequency reuse, the system will select the full coverage carrier frequency or the half coverage carrier frequency to configure for the UE according to the signal quality of the current serving cell and neighboring cells (see figure 1 ). In the handover area, when the UE operates on the full ...

AI Technical Summary

Problems solved by technology

However, since the UE needs to periodically send measurement reports to the RNC according to the preset period, the trigger mechanism of the periodic report will cause high signaling traffic, which will increase the load on the RNC side and the UE side, and will be due to the air interface bandwidth. Preemption affects the quality of service of UE services

[0007] It can be seen that the existing TFFR method has the problem of excessive air interface signaling overhead under the trigger mechanism of periodic reports

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