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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: 2011-03-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

[0062] 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.

[0063] 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.

[0064] 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

The embodiment of the invention discloses a channel information feedback method of a multi-carrier system and equipment thereof, wherein, a channel information feedback process in a long term evolution advanced (LTE-A) system is given based on the channel information feedback technology in the existing LTE system and the specific requirement of the LTE-A system. The technical proposal provided by the embodiment of the invention keeps the consistency between a channel information feedback mode and the existing LTE system, preferably ensures frequency selectivity gain optimization for the system, and effectively traverses multi-carrier channel information of the whole LTE-A, thus saving system resources occupied by information feedback.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a channel information feedback method and equipment for a multi-carrier system. Background technique [0002] In a Long Term Evolution Advanced (LTE-A) multi-carrier system, due to limited spectrum resources, the prior art generally adopts a technology of partially aggregating multiple carriers when allocating spectrum resources. 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 (LTE) standard. [0003] Then, in order to effectively perform the link adaptation process in the LTE-A system, to obtain the channel information in the LTE-A system, the UE not only needs to obtain the subband, subband set, and carrier part currently used in the system Channel information, it is also necessary to obtain channel information of other carri...

Claims

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Application Information

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Patent Type & Authority Applications(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