Feedback information processing method, apparatus and system

A technology of feedback information and processing method, applied in the field of feedback information processing method, device and system, can solve the problems of ineffective operation, inaccuracy of traditional link adaptation technology, inability to fully utilize channel adaptation conditions, etc. System capacity and spectral efficiency, the effect of improving the effect of link adaptation

Active Publication Date: 2015-11-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0059] On the one hand, in the traditional mobile communication system, in the case of rapid channel changes, business data bursts, interference data bursts, cell switching, and the use of advanced receivers, the traditional link adaptation technology appears inaccurate and not fast.
For example: OLLA implements the outer ring link adaptation based on the number of ACKs or NACKs in the first transmission packet. This method is semi-static (needs tens to hundreds of ms), and cannot work effectively in the above scenarios.
[0060] On the other hand, in the traditional mobile communication system, 1-bit ACK / NACK is generated after data decoding, which cannot make full use of the channel adaptive conditions brought about by data decoding, and the feedback is severely limited

Method used

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  • Feedback information processing method, apparatus and system
  • Feedback information processing method, apparatus and system
  • Feedback information processing method, apparatus and system

Examples

Experimental program
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Effect test

Embodiment 1

[0098] On the basis of being compatible with existing ACK / NACK feedback, this embodiment provides a method for processing feedback information, which is applied to the first transmission node, such as figure 1 shown, including:

[0099] Step 101: The first transmission node receives a signal of a data sharing channel, and determines data transmission level indication information of a transmission block according to the signal;

[0100] Step 102: The first transmission node sends data transmission level indication information corresponding to the transmission block to a second transmission node; wherein the data transmission level indication information is information indicating a data transmission level.

[0101] Here, the first transmission node is a terminal, and the second transmission node is a base station; or, the first transmission node is a base station, and the second transmission node is a terminal.

[0102] The data transmission level indication information include...

example 1

[0164] Taking the error level information in the data transmission level indication information as the block error rate (BCER) corresponding to the transmission block as an example, the first transmission node is a UE, and the second transmission node is a base station as an example to describe the above embodiment. Such as figure 2 shown, including:

[0165] Step 201: The UE determines HARQ acknowledgment information and error level indication information corresponding to each transport block according to the received downlink data shared channel signal.

[0166] Wherein, the HARQ acknowledgment information is NACK, indicating that the data is decoded incorrectly. The error level indication information indicates the level of error degree during error decoding, which is divided into N levels, and N is a positive integer greater than or equal to 2. If N=2, it is divided into high error level and low error level.

[0167] The error level is expressed by the BCER block error ...

example 2

[0172] The above embodiment will be described below by taking the error level in the data transmission level indication information as the BER corresponding to the transmission block. The first transmission node is a UE, and the second transmission node is a base station. For example, image 3 shown, including:

[0173] Step 301: The UE determines HARQ acknowledgment information and error level indication information corresponding to each transport block according to the received downlink data shared channel signal.

[0174] Wherein, the HARQ acknowledgment information is NACK, indicating that the data is decoded incorrectly. The error level indication information indicates the level of error degree during error decoding, which is divided into N levels, and N is a positive integer greater than or equal to 2. If N=3, it is divided into three levels of high, medium and low error levels.

[0175] The error level is expressed by the BER bit error rate of the transmission block. ...

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Abstract

Disclosed are a feedback information processing method, device and system, the method comprising: a first transmission node receives a signal of a data sharing channel, and determines the data transmission level indication information of a transmission block according to the signal; and the first transmission node transmits to a second transmission node the data transmission level indication information corresponding to the transmission block.

Description

technical field [0001] The invention relates to control technology in the field of mobile communication, in particular to a processing method, device and system for feedback information. Background technique [0002] The LTE (Long Term Evolution, long-term evolution) project is the evolution of 3G. LTE is not a 4G technology that people generally misunderstand, but a transition between 3G and 4G technology. It is a global standard of 3.9G, using OFDM and MIMO as its wireless The only standard for network evolution, which improves and enhances the 3G air access technology. This technology with OFDM / FDMA as the core can be regarded as a "quasi-4G" technology. Under the 20MHz spectrum bandwidth, it can provide the peak rate of downlink 100Mbit / s and uplink 50Mbit / s. It improves the performance of cell edge users, increases cell capacity and reduces system delay. [0003] The performance of wireless systems depends on the time-varying conditions of the wireless link, which mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/16H04L1/18
CPCH04L1/0026H04L1/1671H04L1/1692H04L1/1812H04L1/20H04L1/203H04L1/0021H04L1/0028H04L1/0035H04L1/0005H04L1/0011H04L1/0003H04L5/0048H04L5/0055H04L5/0057H04W72/0446
Inventor 徐俊李儒岳戴博王瑜新许进
Owner ZTE CORP
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