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Data reconstruction method and device

A data reconstruction and data technology, applied in the field of communication, can solve the problem of low utilization rate of system storage resources, and achieve the effect of saving equipment costs and improving the utilization rate of storage resources

Inactive Publication Date: 2012-07-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a signal reconstruction method and device to at least solve the problem of relatively low utilization of system storage resources caused by the data reconstruction method in the above-mentioned related art

Method used

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  • Data reconstruction method and device

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Embodiment 1

[0041] This embodiment provides a method for data reconstruction. This embodiment combines the above-mentioned embodiments and preferred implementation modes therein. image 3 is a schematic diagram of the receiver data reconstruction part according to an embodiment of the present invention, such as image 3 Shown: Store the scrambling code calculated by the scrambling code into the de-channel interleaving matrix RAM, store the output result of the de-channel interleaving matrix RAM into the scrambling code storage RAM, and store the rate-matched data and the output result of the scrambling code storage RAM Perform scrambling processing, then undergo soft modulation, and finally send it to the channel interleaving matrix RAM for channel interleaving processing.

[0042] Specifically, the method includes the following steps:

[0043] Step 1. When the descrambling module generates the scrambling code sequence, align the scrambling code sequence with the received data and perform ...

Embodiment 2

[0051] This embodiment provides a method for data reconstruction. This embodiment combines the above-mentioned embodiments and preferred implementation modes therein. Figure 4 is a flowchart of a data reconstruction method according to a preferred embodiment of the present invention, such as Figure 4 As shown, the method includes:

[0052] Step S402: Data reconstruction processing starts.

[0053] Step S404: The turbo decoding module decodes the received moral data.

[0054] Preferably, performing soft rate matching on the soft bits obtained by Turbo decoding, wherein the soft rate matching outputs data in parallel with 2, 4 and 6 channels according to 3 modulation modes QPSK, 16QAM and 64QAM, and simultaneously transfers the scrambling code sequence from the scrambling code storage module Read in the cache of the data, and perform scrambling and soft modulation processing after being aligned with the data. Since both scrambling and soft modulation processing are performed...

Embodiment 3

[0074] This embodiment provides a data reconstruction method, and this embodiment combines the foregoing embodiments and preferred implementation manners therein. In this embodiment, the LTE system is frequency division duplex (FDD) 20M bandwidth, the number of RBs occupied by the current user is 100, and the uplink adopts 2x4 multi-user-multiple-input multiple-output (MU-MIMO) transmission mode, paired The two users are marked as U1 and U2; the base station uses 4 antennas to receive, the modulation method is 64QAM, the cyclic prefix (CP) type is normal CP, there is no sounding pilot signal, no physical uplink control channel (PUCCH) channel, and uplink control information (Uplink Control Information, referred to as UCI) (including RI, CQI / PMI and ACK), using the Turbo-SIC algorithm to analyze the data of MU-MIMO users. Figure 5 It is the flow of the data reconstruction method according to the preferred embodiment of the present invention Figure II ,Such as Figure 5 As s...

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Abstract

The invention discloses a data reconstruction method and device. The method comprises the following steps of: carrying out scrambling operation on received ascending data on an LTE (Long-Term Evolution); carrying out soft modulation on the data being subjected to scrambling operation; carrying out channel interleaved coding on the data being subjected to soft modulation operation; and carrying out data reconstruction on the data being subjected to channel interleaved coding. The method and the device have the advantage that the utilization ratio of system storage resource is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data reconstruction method and device. Background technique [0002] The Long Term Evolution (LTE for short) protocol stipulates the sequence of bit-level processing of the uplink transmitter, so in order to maintain consistency, when the receiver uses the Turbo-SIC algorithm for data reconstruction, the signal data is processed accordingly technology to ensure the correct output of the signal. Such as figure 1 As shown, the protocol stipulates that channel interleaving, scrambling, modulation and other technologies are adopted at the bit level of the LTE transmitter; therefore, when the corresponding receiving end adopts the Turbo-SIC algorithm, the processing sequence of channel interleaving, scrambling, and modulation is required to be the same as that of correspond. [0003] When the LTE receiver uses the Turbo-SIC algorithm for data reconstruction, in order to ensure t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0045H04L1/0071H04L1/00
Inventor 王港
Owner ZTE CORP
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