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Channel information feedback method of multi-carrier system and equipment thereof

A channel information feedback, multi-carrier system technology, applied in the field of communication, to save system resources and maintain consistency

Active Publication Date: 2014-05-14
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] At present, there is no perfect channel information feedback method for the UE multi-carrier system that is suitable for the LTE-A system, that is, taking into account both the downlink component carrier (DL Component Carrier) and the additional component carrier (Additional Component Carrier) in the LTE-A system Channel information feedback to maximize the frequency selectivity gain of the LTE-A system

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  • Channel information feedback method of multi-carrier system and equipment thereof
  • Channel information feedback method of multi-carrier system and equipment thereof
  • Channel information feedback method of multi-carrier system and equipment thereof

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Embodiment Construction

[0086] As described in the background, there is no UE channel information feedback method suitable for the LTE-A system in the prior art, which can take into account the channel information feedback of the DL Component Carrier and the Additional Component Carrier in the LTE-A system, and embody it to the greatest extent LTE-A system frequency selectivity gain.

[0087] Therefore, the embodiment of the present invention provides a channel information feedback method for a multi-carrier system in a multi-carrier system based on the channel information feedback technology in the existing LTE system and the specific system requirements of the LTE-A system.

[0088] In the LTE-A multi-carrier system, all component carriers in the base station are divided into two categories: DL ComponentCarrier and Additional Component Carrier, where the DL Component Carrier represents the carrier used by the base station to send downlink data to the user equipment, which can be defined as a working...

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Abstract

A method and device for channel information feedback of a multi-carrier system are disclosed by the embodiment of the present invention, a channel information feedback flow in an LTE-A system is provided based on the channel information feedback technique in the prior LTE system and the special system requirements of the LTE-A system, by applying the technical solution provided by the embodiment of the present invention, the consistency between the channel information feedback pattern and the prior LTE system is maintained, the optimization of the system frequency selectivity gain is ensured better, the channel information of multiple carriers of the whole LTE-A is traversed effectively, and the system resources occupied by the information feedback are saved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method and device for feeding back channel information in a multi-carrier system. Background technique [0002] In the Long Term Evolution Advanced (LTE-A) multi-carrier system, due to limited spectrum resources, the prior art usually adopts the technology of aggregation of multiple carrier parts when allocating spectrum resources, wherein the multiple carrier parts may be The spectrum resources are distributed continuously or discontinuously, and the characteristics of each carrier part should meet the basic requirements in the current Long Term Evolution (Long Term Evolution, LTE) standard. [0003] Then, in order to effectively perform the link adaptation process in the LTE-A system, in order to obtain the channel information in the LTE-A system, the UE not only needs to obtain the subband, subband set currently used in the system, and the carrier part ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00
CPCH04L1/0029
Inventor 喻晓冬林亚男潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD