Secondary Cell Activation Method

Abstract

The application discloses an activation method of a secondary cell. The activation method includes the following steps: when system information change happens in a secondary cell (SCell) of UE and corresponding processing operations are completed, if the current service quantity of the UE is larger than a preset service quantity threshold and before the system information is changed, the SCell of the UE is at an activation state, a base station activates the SCell of the UE; and when the UE completes a switching process, if before the switching, an SCell at an activation state exists in the UE, the base station triggers the current SCell of the UE so as to carry out activation. Through adoption of the activation method of the secondary cell, a problem that user service continuity is affected when system information change of the SCell of the UE happens and switching happens can be effectively solved.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method for activating a secondary cell. Background technique [0002] Carrier aggregation technology is the most direct way to increase the data transmission rate. The so-called carrier aggregation means that user data can be simultaneously transmitted on multiple component carriers (Component Carriers, CCs), which is equivalent to increasing the user's transmission bandwidth. In the LTE Rel-10 protocol, a user can use up to five CCs at the same time, so that the maximum transmission bandwidth of a single user can theoretically reach 100MHz, which will greatly increase the peak rate of user data transmission. [0003] A CC represents an uplink carrier or a downlink carrier. An uplink CC and a downlink CC are associated through a certain correspondence to form a cell (Cell), so carrier aggregation is also called cell aggregation (CellAggregation). The component carrie...

AI Technical Summary

Problems solved by technology

For the UE before the SCell system information changes or before the handover, the UE has a large amount of data transmission on the SCell. When the UE completes the related operations due to the change of the SCell system information or completes the handover process, the state of the UE's SCell is in the deactivated state. If users in such special situations do not activate SCell in time, it will affect the continuity of services and user-oriented experience

[0006] It can be seen that in the current system, when the UE performs handover or its SCell system information changes, there will be a problem that the service continuity of the user is affected because the SCell is in the deactivated state