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Method and device for realizing repeat ACK/NACK transmission

A transmission unit, fixed-mode technology, applied in transmission systems, error prevention/detection using return channels, electrical components, etc., to achieve the effect of improving uplink coverage

Active Publication Date: 2013-08-07
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention solves the problem of how to implement the retransmission ACK / NACK mechanism in the case of carrier aggregation in the LTE-A system

Method used

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  • Method and device for realizing repeat ACK/NACK transmission
  • Method and device for realizing repeat ACK/NACK transmission
  • Method and device for realizing repeat ACK/NACK transmission

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Embodiment Construction

[0036] The basic idea of ​​the present invention is to configure different component carriers for the repeated ACK / NACK transmission of the same UE in the LTE-A system, that is, to enable the UE to know the number of subframes for repeated ACK / NACK transmission in various ways, and to use The UE knows which component carriers need to perform repeated ACK / NACK transmission, and the frequency hopping pattern (hopping pattern) on different component carriers when performing repeated ACK / NACK transmission. The frequency hopping mode is used above to complete the repeated ACK / NACK transmission, thereby realizing the repeated ACK / NACK transmission mechanism in the case of carrier aggregation, thereby enabling the UE to obtain frequency diversity gain, thereby improving the uplink coverage capability.

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodim...

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Abstract

The invention relates to a method and a device for realizing repeat ACK / NACK transmission. The method comprises the following steps of: acquiring the number of sub-frames which performs the repeat ACK / NACK transmission, component carrier information and a frequency-hopping mode on different component carriers; and finishing the repeat ACK / NACK transmission by adopting the frequency-hopping mode on the sub-frames of the component carriers according to the acquired contents. Thus, by adopting the method and the device of the invention, a repeat ACK / NACK transmission mechanism can be realized inthe situation of carrier aggregation. Therefore, UE can acquire a frequency diversity gain to improve uplink coverage capability.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for realizing repeated ACK / NACK transmission. Background technique [0002] The current existing LEE (Long Term Evolution, Long Term Evolution) system, on the one hand, is a scheduling-based system, that is, the base station allocates time-frequency resources to carry data, and the terminal (UE) receives downlink data or sends uplink data according to the control commands of the base station : For example, for downlink data transmission, the base station configures the downlink control channel and downlink data for the terminal, and the terminal first interprets the PDCCH (Physical Downlink Control Channel, physical downlink control channel) channel, if there is a downlink control command for the terminal, then according to The frequency resource location and MCS (Modulation and Coding Scheme, modulation and coding) and other information s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/713H04L1/18H04L1/16
Inventor 杨晓东高卓
Owner DATANG MOBILE COMM EQUIP CO LTD