Multi-carrier feedback information sending system and method

Abstract

The invention discloses a multi-carrier feedback information sending system, which comprises a setting unit, a sending unit and a selecting channel, wherein the setting unit is used for setting mapping relationship among feedback information, channel selection and modulation symbols according to feedback requirements on downlink component carriers; the sending unit is used for obtaining the mapping relationship from the setting unit; and the selecting channel sends the feedback information according to the mapping relationship by adopting the modulation symbols corresponding to the channel selection and the feedback information. The invention also discloses a multi-carrier feedback information sending method, which comprises the following steps: setting the mapping relationship among the feedback information, the channel selection and the modulation symbols according to the feedback requirements on the downlink component carriers; selecting the channel by a sending side and sending the feedback information according to the mapping relationship by adopting the modulation symbols corresponding to the channel selection and the feedback information. By adopting the system and the method, the adopted and set mapping relationship can be regulated according to actual feedback requirements, thus improving the feedback performance of the feedback information under a plurality of the component carriers.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular to a system and method for transmitting multi-carrier feedback information under large bandwidth. Background technique [0002] In the Advanced International Mobile Telecommunications (IMT-Advanced, International Mobile Telecommunications-Advanced) system, high-speed data transmission can be achieved, and it has a large system capacity. In the case of low-speed mobile or hotspot coverage, the peak value of the IMT-Advanced system The rate can reach 1Gbit / s; in the case of high-speed mobile or wide-area coverage, the peak rate of the IMT-Advanced system can reach 100Mbit / s. [0003] In order to meet the requirements of the International Telecommunication Union-Advanced (ITU-Advanced, International Telecommunication Union-Advanced), the Long Term Evolution (LTE-A, Long Term Evolution Advanced) system, which is the long-term evolution (LTE, Long Term Evolution) evolution st...

AI Technical Summary

Problems solved by technology

The current existing technologies all directly adopt the mapping relationship given by the LTE system in the current time division duplex (TDD) mode. However, there are problems in directly adopting the mapping relationship set by the system, such as unbalanced feedback information on different channels. etc. In addition, there is room for further improvement in the modulation symbols corresponding to different feedback information on the same channel

In short, the problem existing in the existing technology is: directly using the mapping relationship given by the system, it is impossible to set and adjust the mapping relationship between the above three according to the actual feedback needs, so as to meet the needs of improving feedback performance

Currently, there is no effective solution to this problem

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