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Method and device for reporting channel state information

A channel state information and channel technology, applied in the field of communication, can solve problems such as reducing reporting accuracy and affecting eNB scheduling, and achieve the effect of improving reporting accuracy

Active Publication Date: 2016-12-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing reporting method of directly discarding the CSI of some DL CCs will reduce the reporting accuracy and affect the eNB scheduling

Method used

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  • Method and device for reporting channel state information
  • Method and device for reporting channel state information
  • Method and device for reporting channel state information

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Embodiment Construction

[0045]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] figure 1 It is a flow chart of Embodiment 1 of the method for reporting CSI in the present invention, as shown in figure 1 As shown, the method includes:

[0047] Step 101: Send a trigger command to the UE for periodically reporting the CSI corresponding to at least one carrier.

[0048] The embodiment of the present invention can be appl...

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Abstract

The present invention provides a method and device for reporting channel state information CSI. The method includes: sending a trigger command to the UE for periodically reporting the CSI corresponding to at least one carrier; periodically receiving the UE according to the trigger command. The CSI corresponding to the at least one carrier reported periodically on the uplink shared channel PUSCH. In the embodiment of the present invention, after receiving the trigger command sent by the eNB, the UE periodically reports the CSI corresponding to multiple carriers in the PUSCH. Since there are many resources in the PUSCH, the UE can report the CSI corresponding to multiple carriers in the PUSCH. , thereby improving the reporting accuracy of the CSI in the carrier aggregation scenario.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a method and device for reporting channel state information. Background technique [0002] LTE (Long Term Evolution, Long Term Evolution) technology is the evolution of 3G, it improves and enhances the air access technology of 3G, adopts OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access) to replace the long-term use of 3GPP CDMA ( Code Division Multiple Access (CDMA) is used as a multiple access technology, and a large number of MIMO (Multiple-Input Multiple-Out-put, multiple input multiple output) technology and adaptive technology are used to improve data rate and system performance. [0003] LTE-A (LTE-Advance, evolution of LTE) is a further enhancement of the LTE technology, and the LTE-A system has a higher bandwidth requirement than the LTE system. In order to meet the requirements of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04L1/00
Inventor 张兴炜李超君
Owner HUAWEI TECH CO LTD
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