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Method and device for dynamic management of secondary cells in carrier aggregation

A technology of carrier aggregation and dynamic management, which is applied in the directions of transmission path separation device, connection management, network traffic/resource management, etc., and can solve problems such as the lack of clear regulations on secondary cell management

Inactive Publication Date: 2013-02-20
ZTE CORP
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Problems solved by technology

However, the determination of the secondary cell is entirely dependent on the selection of the eNB (Evolved Node B, improved base station). The management of the secondary cell is also a new content introduced by the carrier aggregation function. Currently, the protocol has no clear regulations on the management of the secondary cell.

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  • Method and device for dynamic management of secondary cells in carrier aggregation
  • Method and device for dynamic management of secondary cells in carrier aggregation
  • Method and device for dynamic management of secondary cells in carrier aggregation

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[0042] The first embodiment of the present invention, such as figure 1 As shown, a method for dynamically managing a secondary cell in carrier aggregation, where the eNB configures a primary cell for the UE, the method includes the following specific steps:

[0043] In step S101 , firstly select an inter-frequency neighboring cell supported by the UE, having the same coverage as the primary cell and including the coverage of the primary cell to be configured as a secondary cell for the UE.

[0044] In the present invention, the primary cell and neighboring cell configuration technologies belong to the prior art, so they will not be described in detail here.

[0045] Step S102, when the number of secondary cells of the UE cannot meet the bandwidth requirement of carrier aggregation, select the secondary cell of the UE from the remaining inter-frequency adjacent cells of the primary cell.

[0046]Specifically, start A4 measurement event in the 3GPP TS36.331 protocol for the fre...

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Abstract

The invention discloses a method and device for dynamic management of secondary cells in carrier aggregation. A primary cell is configured for user equipment (UE) by an evolved Node B (eNB). The method comprises the following steps of: firstly selecting secondary cells, wherein the secondary cells are supported by the UE, have the coverage area the same as that of the primary cell, and comprise different-frequency neighbor cells which are located in the coverage area of the primary cell and configured for the UE; and selecting the secondary cells for the UE from the rest different-frequency neighbor cells of the primary cell when the number of the secondary cells for the UE can not meet the bandwidth needs of the carrier aggregation. The device comprises a secondary cell selection module and a secondary cell additional selection module. The method and the device have the advantages that the problem of secondary cell management in the carrier aggregation is solved, and the dynamic management of the secondary cells is realized by flexibly using the existing neighbor cell configuration technology and measurement technology, so that a key technical support for the realization of a carrier aggregation function is provided.

Description

technical field [0001] The present invention relates to the technical field of LTE (Long Term Evolution, long-term evolution) system, and in particular to a method and device for dynamically managing a secondary cell in carrier aggregation. Background technique [0002] In order to meet the peak rate requirements, the LTE-A (Long Term Evolution-Advanced) system currently supports a maximum bandwidth of 100MHz. However, it is difficult to find such a large bandwidth in the existing available spectrum resources, and large bandwidth is critical for the hardware design of base stations and terminals. bring great difficulty. In addition, for spectrum resources scattered in multiple frequency bands, a technology is urgently needed to make full use of them. Based on the above considerations, the LTE-A system introduces the key technology of CA (Carrier Aggregation, carrier aggregation). [0003] Carrier aggregation is a function introduced by 3GPP R10 (3rd Generation Partnership ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04
CPCH04W28/16H04L5/0096H04L5/0098H04W76/025H04W16/14H04L5/001H04L5/0032H04L5/0064H04L5/0087H04W76/15
Inventor 李静岚
Owner ZTE CORP
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