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Method and device for selecting formation carrier waves in carrier wave aggregation

A technology for composing carriers and carrier aggregation, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as reduced flexibility, improper carrier selection, and reduced carrier aggregation effect, so as to reduce scheduling complexity and improve effect, the effect of improving flexibility

Inactive Publication Date: 2011-06-01
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a method and device for selecting a component carrier in carrier aggregation based on resource reservation, which is used to solve the problem of inter-cell interference caused by improper carrier selection in carrier aggregation technology and the effect of carrier aggregation. decline, the technical problem that the scheduling complexity of the base station to the carrier is too high, and the flexibility is severely reduced

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  • Method and device for selecting formation carrier waves in carrier wave aggregation
  • Method and device for selecting formation carrier waves in carrier wave aggregation
  • Method and device for selecting formation carrier waves in carrier wave aggregation

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Embodiment Construction

[0029] The basic idea of ​​the present invention is that the base station first determines the bandwidth capabilities of all user terminals that need to be supported in the current network, and sets an initial component carrier selection strategy according to the bandwidth capabilities of all user terminals; then, according to the initial carrier selection strategy, reserve Carrier resources, the reserved carrier resources fully consider the compatibility characteristics, interference characteristics and transmission characteristics of the carrier. When the UE accesses, the base station determines the type of component carrier, the number of component carriers, the composition mode of the component carrier, etc. used when performing carrier aggregation for the UE according to the actual characteristics of the UE, and finally determines the component carrier selection strategy. After the UE accesses correctly, the base station reselects a new carrier resource for the UE, and rel...

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Abstract

The invention discloses a method and device for selecting formation carrier waves in carrier wave aggregation, which are used for solving the technical problems that inter-cell interference reduces carrier wave aggregation effects due to improper carrier wave selection, the scheduling complexity of a base station to the carrier waves is overhigh and the scheduling flexibility is seriously declined in a carrier wave aggregation technology. The method comprises the following steps of: firstly, reserving a carrier wave resource for UE (User Equipment) to be accessed according to the bandwidth capacity of all UE in a network; and then selecting the carrier waves from the reserved carrier wave resource according to UE characteristics when the UE is accessed. When the carrier waves are selected, the factors, such as UE bandwidth capacity, the inter-cell interference characteristics of the carrier waves, the number of the carrier waves, the formation mode of the carrier waves and the like are comprehensively considered, therefore, the scheduling complexity of the base station to the carrier waves is reduced; the scheduling flexibility is improved; and the effect of the carrier wave aggregation in the practical application is enhanced.

Description

technical field [0001] The present invention relates to a wireless communication network, in particular to a method and device for selecting component carriers in carrier aggregation based on resource reservation. Background technique [0002] In the next-generation broadband wireless communication network, how to support a larger bandwidth in the wireless communication network under the bandwidth of the current wireless communication system becomes a key factor in improving the throughput of user terminals between cells and the average throughput of user terminals. Facing severe challenges. [0003] At present, in the Long Term Evolution (LTE) of the Third Generation Partnership Project, it is proposed to use carrier aggregation to effectively support a larger bandwidth in the current wireless communication system, so as to meet the new generation of wireless standards. The requirements for indicators such as throughput and peak rate. Carrier aggregation is a key technolo...

Claims

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Application Information

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IPC IPC(8): H04W28/26H04W72/04H04W72/12
Inventor 魏巍
Owner ZTE CORP
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