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Method and device for decoding data

A decoding and data technology, applied in the field of data decoding, can solve the problems of increased BLER, inaccurate weighting results, and smaller weighting factors, so as to reduce BLER, improve the probability of correct decoding, and ensure accuracy. Effect

Active Publication Date: 2011-09-14
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

Then, if the calculation is still performed according to the previous formulas (1)~(4), that is to say, the calculation using all demodulated data will cause the variance p to become larger, and accordingly, the weighting factor will become smaller
Furthermore, using a smaller weighting factor to weight the business data will lead to inaccurate weighting results for most of the undisturbed data, which will affect the probability of correct decoding of the business data and increase the BLER

Method used

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  • Method and device for decoding data
  • Method and device for decoding data

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Embodiment Construction

[0073] The present invention provides a method and device for decoding data. The basic idea is to calculate the weighting factors of the data part that does not overlap with the uplink pilot channel and the data part that overlaps with the uplink pilot channel in the demodulation result, and Use these two weighting factors to weight the data part that does not overlap with the uplink pilot channel and the data part that overlaps with the uplink pilot channel; or calculate the data part that does not overlap with the uplink pilot channel in the demodulation result, using The weighting factor weights the data portion including no overlap with the uplink pilot channel and the data portion overlapping with the uplink pilot channel.

[0074] As mentioned in the previous example, the UpPCH in TD-SCDMA is adjusted to be sent in the uplink service time slot. According to the existing relevant technical specifications, the positions that the UpPCH supports to be adjusted to in this case...

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Abstract

The invention discloses a data decoding method. The method comprises the following steps: joint detection is performed to baseband data; the weighting factor of the data part which is not overlapped with the uplink pilot channel is calculated in the joint detection results, and the data part which is not overlapped with the uplink pilot channel is weighted through the weighting factor; the weighting factor of the data part which is overlapped with the uplink pilot channel is calculated joint detection results, and the data part which is overlapped with the uplink pilot channel is weighted through the weighting factor; and the data part which is not overlapped with the uplink pilot channel and the data part which is overlapped with the uplink pilot channel are decoded. The invention also discloses the other data decoding method and a data decoding device. By using the method, the accuracy of the weighted results can be ensured, the correct decoding probability of the service data is further improved, and the block error rate is reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for decoding data. Background technique [0002] In the field of wireless communication technology, after the base station receives the baseband data, generally, the base station needs to process the baseband data, including: figure 1 The process shown: [0003] Step 101: Perform joint detection on baseband data. The processing specifically includes despreading and demodulation, so as to finally obtain a demodulation result. [0004] Step 102: Weighting the data after the joint detection, that is, the demodulation result. Specifically, this step is to calculate a weighting factor according to the demodulation result, and use the calculated weighting factor to weight the demodulation result. The resulting weighted results are called soft bits. [0005] Step 103: Decode the weighted data, that is, the soft bits, to restore the origina...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00
Inventor 孔健王希
Owner DATANG MOBILE COMM EQUIP CO LTD
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