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Merging feedback and instruction method, device and system for answer information

A technology of response information and scheduling information, applied in the field of communication, can solve the problems of lack of formulation, combined feedback of ACK/NACK information, etc.

Active Publication Date: 2012-02-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current research on the LTE-A system, there is no relevant plan for how to combine ACK / NACK information feedback

Method used

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  • Merging feedback and instruction method, device and system for answer information
  • Merging feedback and instruction method, device and system for answer information
  • Merging feedback and instruction method, device and system for answer information

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Embodiment Construction

[0044] In the embodiment of the present invention, in the LTE-A system, in order to realize the combined feedback indication of the response information, the base station in the system sends the downlink scheduling information carrying the downlink assignment index (DAI) to the user terminal, and instructs the user terminal based on Corresponding to the number of scheduled downlink carriers set by the DAI, the response information is combined and fed back to the base station side. At the same time, in order to realize combined feedback of response information, in the embodiment of the present invention, the user terminal in the system receives the downlink scheduling information carrying the DAI sent by the above-mentioned base station, determines the number of scheduled downlink carriers based on the DAI, and passes the scheduled The downlink carrier receives data, and judges whether the downlink carrier is lost in the feedback window. If it is determined according to the judg...

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Abstract

The invention discloses a merging feedback and instruction method, a device and a system for answer information, which are used for merging and feeding back the answer information on the basis of a feedback window in a long term evolution-advanced (LTE-A) system. The merging feedback method comprises the following steps that: user equipment (UE) merges and feeds back data receiving conditions in the feedback window to a base station side in a mode of not feeding back answer information but feeding back ACK / NACK information according to the preset configuration information so that the base station side can obtain the data receiving state of the UE in time, in addition, when the data receiving is abnormal, the corresponding processing is carried out through adopting the accurate strategy in time, so the fault tolerance capability of the system is improved, and the performance and the service quality of the system are also improved. The invention simultaneously provides a merging feedback device and a system for the answer information and provides a merging feedback and instruction method of the answer information, and a corresponding device and a system.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, device and system for combined feedback of response information and its indication. Background technique [0002] In the Long Term Evolution-Advanced (LTE-Advanced) system, referred to as the LTE-A system, in order to support a wider system bandwidth than the LTE system, such as 100MHz, the following two spectrum allocation methods are usually used: [0003] One is to directly allocate the spectrum with a bandwidth of 100M in the form of a single spectrum, specifically as figure 1 shown. [0004] The other is to use the spectrum aggregation method to aggregate the spectrum allocated to the existing system into 100M bandwidth for the system to use, specifically as figure 2 shown. [0005] Such as figure 2 As shown, when the spectrum aggregation method is adopted, the uplink and downlink carriers in the LTE-A system can be configured asymmetrically, that is, the user termi...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04W28/04H04W72/12
Inventor 林亚男沈祖康高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD
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