Confirmation information feedback method

A technology for confirming information and physical control channels, which is applied in the direction of using the return channel for error prevention/detection, etc. It can solve problems such as inability to participate, increase delay, intermittent transmission, etc., and achieve the effect of improving performance and reducing transmission delay
CN101267285AActive Publication Date: 2008-09-17ZTE CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2008-09-17

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Abstract

The present invention presents a confirmation information feedback method. The method comprises the following procedures: dividing a plurality of descending sub-frames into two descending sub-frame groups, and informing two divided descending sub-frame groups and the sequence numbers of the descending sub-frames which are included in each descending sub-frame group to a base station and a terminal, wherein, a plurality of descending sub-frames feed back the confirmation information in a same ascending sub-frame, and each descending sub-frame group at least comprises a descending sub-frame; and feeding back the data of the descending sub-frame group by the terminal with the indication field in the ascending physical control channel corresponding with two descending sub-frame groups. Through the invention, the transmission time delay of the system is reduced and the capability of the system is increased.
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Description

Technical field

[0001] The present invention relates to the field of communications, and in particular to a confirmation information feedback method. Background technique

[0002] figure 1 Shows the frame structure of the Time Division Duplex (TDD) mode of the Long Term Evolution (LTE) system. In this frame structure, a 10ms radio frame (radio frame) is divided into Two half frames (half frames), each half frame is divided into 10 time slots with a length of 0.5ms, and two adjacent time slots form a subframe with a length of 1ms. One half frame contains 5 subframes. For the standard cyclic prefix (Normal Cyclic Prefix, referred to as Normal CP), a slot contains 7 symbols with a length of 66.7us, of which the CP length of the first symbol is 5.21us, and the CP length of the remaining 6 symbols is 4.69us ; For Extended (Extended) CP, one slot contains 6 symbols, and the CP length of all symbols is 16.67 us. In this frame structure, the configuration characteristics of subframes a...

Claims

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