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Receive coalition method, system and equipment

A receiving device and secondary receiving technology, which is applied in the field of communication to achieve the effect of improving system performance, increasing channel capacity and spectrum utilization, and reducing frame error rate and bit error rate

Active Publication Date: 2009-07-01
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For receiving processing, there is still room for optimization in the scheme of constellation reorganization

Method used

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  • Receive coalition method, system and equipment
  • Receive coalition method, system and equipment
  • Receive coalition method, system and equipment

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Embodiment Construction

[0046] The implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples.

[0047] In the reception combining method adopted in the current mobile communication system, for at least one transmission of a set of data at the transmitting end, the data symbols transmitted through the channel are individually channel-equalized and then demodulated at the receiving end, and the The demodulated LLR soft bit information is combined and then decoded to obtain received data. This bit-level merging method has limited improvement in system performance.

[0048] To this end, the embodiment of the present invention provides a receiving combination method, especially a data sending and receiving combining method based on high-order constellation recombination such as 8PSK, 16QAM, and 64QAM constellation recombination. The method provided in this embodiment is not only applicable to a SISO (Single Input Single Ou...

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Abstract

The embodiment of the invention provides a reception / transmission combining method. The method comprises the following steps: receiving and caching data symbols that are transmitted at least twice by a transmitting terminal relative to a group of data, wherein the data symbols are acquired after modulating the data by the transmitting terminal; and combining the received data symbols and subjecting to channel equalization, and then obtaining the combined received data by means of demodulation and decoding. The embodiment of the invention also provides a reception / transmission combining methodsystem and a reception / transmission combining device. The reception / transmission combining method demodulates and decodes the received data symbols that are transmitted at least twice after channel equalization, achieves the effect of symbol-level reception / transmission combination of the data, effectively improves the system performance, reduces the frame error rate and the bit error rate, and increases the channel capacity and the spectrum utilization rate of the system.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and equipment for receiving and combining based on transmit diversity. Background technique [0002] 3G (the 3rd Generation Mobile Communication, third-generation mobile communication system) and future 4G (the 4th Generation Mobile Communication, fourth-generation mobile communication system) systems have significantly improved reliability requirements while transmitting high-speed data , especially in harsh natural environments, it is also required to meet high data transmission reliability. Diversity technology is an effective way to improve system performance. Diversity technology means that a group of data is transmitted separately on at least two transmit diversity channels at the transmitting end, and the data symbols transmitted on at least two transmit diversity channels are combined at the receiving end. . [0003] At present, there are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/00H04L1/06
Inventor 吴涛赵印伟
Owner XFUSION DIGITAL TECH CO LTD
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