Secondary carrier activation and deactivation method and device in dual carrier hsdpa

Abstract

A method for activating and deactivating a secondary carrier in dual carrier High Speed Downlink Packet Access (HSDPA) is provided in the present invention, and the method includes: judging whether a terminal is scheduled on a primary carrier or the secondary carrier at a predetermined scheduling period; computing the historical throughput of the terminal on a priority queue according to the judgment result; in the case that a predetermined number of the scheduling period is reached, sampling the historical throughput, and obtaining a maximum value; comparing the maximum value of the historical throughput with a predetermined threshold; selectively activating or deactivating the secondary carrier or keeping the secondary carrier status unchanged according to the comparison result. A device for activating and deactivating a secondary carrier in dual carrier HSDPA is also provided in the present invention. With the technical scheme of the present invention, it is achieved that the secondary carrier is activated or deactivated in time for a User Equipment (UE) according to the load condition of the UE, additional network control overhead due to the High Speed Shared Control Channel (HS-SCCH) order transmission is also reduced, the power consumption of the UE is saved, and the transmission rate of the UE is improved.

Description

technical field [0001] The invention relates to high-speed packet access evolution (HSPA+) mobile communication technology, in particular to a secondary carrier activation and deactivation method and device thereof in dual-carrier HSDPA. Background technique [0002] The 3rd Generation Partnership Project (3GPP) has improved the peak rate of downlink users through multiple-input multiple-output (MIMO) and downlink high-order modulation (64QAM), but compared with high-speed downlink packet access (HSDPA), users in the cell The edge rate has not been greatly improved. For this reason, dual-carrier HSDPA technology was introduced in 3GPP. Dual-carrier HSDPA and 2×2 MIMO can achieve the same peak rate when using the same modulation order. However, compared with 2×2 MIMO, dual-carrier HSDPA has an It has better performance in terms of rate and cell edge user rate. [0003] In the dual-carrier HSDPA technology, the terminal (UE) is not always in dual-carrier reception. When the ...

AI Technical Summary

Problems solved by technology

[0002] The 3rd Generation Partnership Project (3GPP) has improved the peak rate of downlink users through multiple-input multiple-output (MIMO) and downlink high-order modulation (64QAM), but compared with high-speed downlink packet access (HSDPA), users in the cell The edge rate has not been greatly improved

[0004] At present, there is no specific implementation method for secondary carrier activation and deactivation for dual-carrier UEs according to the data rate

Images