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Method and device for activating and deactivating auxiliary carrier in dual carrier HSDPA

A secondary carrier and deactivation technology, applied in the field of secondary carrier activation and deactivation method and its device, can solve the problem that the edge rate of the user cell has not been greatly improved, and the secondary carrier activation and deactivation of the dual-carrier UE has not been seen, etc. question

Inactive Publication Date: 2009-12-09
GLOBAL INNOVATION AGGREGATORS LLC
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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

Method used

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  • Method and device for activating and deactivating auxiliary carrier in dual carrier HSDPA
  • Method and device for activating and deactivating auxiliary carrier in dual carrier HSDPA
  • Method and device for activating and deactivating auxiliary carrier in dual carrier HSDPA

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Embodiment Construction

[0033] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0034] figure 1 It is a flowchart of a method for activating and deactivating a secondary carrier in dual-carrier HSDPA according to an embodiment of the present invention;

[0035] The method includes the following steps, step S102, judging whether the UE is scheduled on the primary carrier or the secondary carrier with a predetermined scheduling period; step S104, calculating the historical throughput rate of the UE on the priority queue according to the judging result; step S106, In the case of reaching a predetermined number of scheduling cycles, sampling the historical throughput rate to obtain its maximum value; step S108, comparing the maximum value of the historical throughput rate with a predetermined threshold, and step S110, according to the comparison result, selectively Activate or deactivate the secondary carrier or keep the state of ...

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Abstract

The invention provides a method for activating and deactivating an auxiliary carrier in a dual carrier HSDPA, which comprises the following steps: judging whether a terminal is scheduled on a main carrier or an auxiliary carrier in a preset scheduling period; according to a judgment result, calculating a historical throughput rate on a priority queue; under the condition of reaching a scheduling period with a preset quantity, sampling historical throughput to obtain a maximum value; comparing the maximum value of the historical throughput and a preset threshold; and according to a comparison result, selectively activating and deactivating the auxiliary carrier or keeping the state of the auxiliary carrier unchanged. The invention also provides a device for activating and deactivating the auxiliary carrier in the HSDPA. The method and the device achieve the aim of activating and deactivating the auxiliary carrier timely for UE according to the load condition of the UE, also reduce additional network control overhead brought by HS-SCCH order transmission, save the power consumption of the UE and improve the transmission rate of the UE.

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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W72/12
CPCH04L5/001H04W72/0486H04W72/0493H04L5/0064Y02B60/50H04L5/0044H04L5/0098Y02D30/70H04W72/52
Inventor 陈冬雷
Owner GLOBAL INNOVATION AGGREGATORS LLC
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