Method and device for segment decoding of transport block (TB) as well as multiple input multiple output (MIMO) receiver

Abstract

The embodiment of the invention provides a method and device for segment decoding of a transport block (TB) as well as a multiple input multiple output (MIMO) receiver. The method comprises the following steps: cutting the received TB into a plurality of code blocks (CBs), and outputting the plurality of CBs to a first processor array by taking the CBs as a basic unit for MIMO decoding; modulating the CBs subjected to MIMO decoding; carrying out descrambling and decomposition rate matching on the modulated CBs; and outputting the CBs subjected to descrambling and decomposition rate matching to a second processor array for forward error collection (FEC) decoding. By utilizing the method provided by the invention, the interactions of processors (or kernels) in the processor arrays are reduced, and the complexity of dispatching is reduced; and simultaneously, the CB segment dispatching ensures that more processing time can be reserved for the processing process after MIMO decoding, so that property requirements on the processor arrays for FEC decoding are objectively reduced, thereby reducing the realization cost of user equipment (UE).

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a transmission block segmentation decoding method, device and a multiple-input multiple-output receiver. Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) is the evolution of the third generation of mobile communications (3G), which improves and enhances the air access technology of 3G, adopts Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) and multiple input Multiple Output (MIMO, Multiple Input Multiple Output) is the only standard for its wireless network evolution. Under the 20MHz spectrum bandwidth, it can provide a peak rate of 300Mbit / s downlink and 150Mbit / s uplink, while improving the performance of cell edge users, increasing cell capacity and reducing system delay. Compared with 3G, LTE has the advantages of high communication rate, high spectrum utilization, low wireless network delay...

AI Technical Summary

Problems solved by technology

[0004] Since the complexity of the MIMO decoding processing part increases with the increase of the transmitting antenna and the receiving antenna in an exponential power of 2, the MIMO decoding is performed in parallel by multiple processors, and the load is shared according to the OFDM symbol. Therefore, in the MIMO decoding On the other hand, all TBs are segmented and scheduled after MIMO decoding, which is left for subsequent processing such as rate matching, hybrid automatic retransmission request, and forward error correction decoding. The process time is short, the processor performance requirements are too high, and the implementation cost of the UE terminal is too high

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