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Transmission method of uplink control information

A technology for controlling information, transmission methods, applied in the direction of error prevention/detection using return channel, error prevention/detection by diversity reception, etc.

Inactive Publication Date: 2012-03-14
POTEVIO INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0095] It can be seen that since there is no multi-layer spatial multiplexing in the single-antenna transmission system, the above-mentioned uplink control information transmission method that is only applicable to the single-antenna transmission system is not applicable to the multi-antenna system with multi-layer spatial multiplexing

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  • Transmission method of uplink control information
  • Transmission method of uplink control information
  • Transmission method of uplink control information

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Embodiment Construction

[0111] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0112] The core idea of ​​the present invention is: when performing channel coding on HARQ-ACK and RI, for the case where the codeword needs to be mapped to one layer, the existing coding method can be used to realize it, and for the case where the codeword needs to be mapped to two layers , first obtain the bit sequence of each layer by concatenating multiple coding blocks, the bit sequence length of each layer is the same, and then concatenate the bit sequence of the two layers together in a specific way, so as to be compatible with the existing system to the greatest extent above, realizing the transmission of uplink control information suitable for an uplink multi-antenna system.

[0113] figure 2 It is a schematic flow chart of Emb...

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Abstract

The invention provides a transmission method of uplink control information, which comprises the following steps: when carrying out channel coding on HARQ-ACK (hybrid automatic repeat request-acknowledgement) and RI (rank indicator), firstly cascading a plurality of coding blocks to acquire the bit sequence of each layer under the condition that code words need to be mapped to two layers, wherein the bit sequence of each layer has the same length; and then, cascading the bit sequences of the two layers. Thus, the invention can realize the reduplication of the HARQ-ACK and RI between the two different code word layers on one hand, and can also keep subsequent interleaving, modulation and other prelaunch transmission processing and retain the compatibility with the existing system on the other hand. Accordingly, the invention is applicable to the transmission of uplink control information of an uplink multi-aerial system on the basis of being maximumly compatible with the existing system.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a transmission method of uplink control information in an uplink multi-antenna system. Background technique [0002] In the Long Term Evolution system (LTE), single-antenna transmission is used for the uplink. When a subframe needs to transmit service information and control information at the same time, in order to maintain the single-carrier characteristics of the uplink, the uplink control information (UCI) and data are For multiplexing, the uplink control information is transmitted on the uplink shared channel (PUSCH), including hybrid automatic repeat request-acknowledgment information (HARQ-ACK), channel quality information (PMI / CQI), and rank indication information (RI). When the uplink control information is transmitted on the PUSCH channel, HARQ-ACK, RI and CQI / PMI are coded independently. [0003] In 3GPP TS 36.212 V8.8.0 (2009-12), the transmission processing method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/06H04L1/16
Inventor 王丽
Owner POTEVIO INFORMATION TECH
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