Data processing method, device and system in wireless communication

A data processing device and wireless communication technology, applied in the communication field, can solve problems such as poor system performance and PAPR reduction

Inactive Publication Date: 2014-08-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, for the scenario where a traveling pilot (TP) is introduced, the positions of the pilot and data are changed, and the existing technology cannot minimize the PAPR, which leads to poor system performance.

Method used

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  • Data processing method, device and system in wireless communication
  • Data processing method, device and system in wireless communication
  • Data processing method, device and system in wireless communication

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Embodiment Construction

[0156] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0157] figure 1 The flow chart of Embodiment 1 of the data processing method in wireless communication provided by the present invention, as shown in figure 1 As shown, the data processing method in the wireless communication of this embodiment includes:

[0158] S101. The transmitter performs twice repeated encoding on the bit stream output by ...

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Abstract

The invention provides a data processing method, device and system in wireless communication. The method comprises the steps that a transmitter carries out double repetition coding on a bit stream output by a coder to obtain first data, determines a data spinning sequence according to the position of pilot frequency on an OFDM symbol mapped by the first data, and spins the repetition part of the first data according to the data spinning sequence. According to the technical scheme, double repetition coding is carried out on the bit stream output by the coder to obtain the first data, the data spinning sequence is determined according to the position of the pilot frequency on the OFDM symbol mapped by the first data, the repetition part of the first data is spun according to the data spinning sequence, and therefore the PAPR can be lowered to the maximum degree according to the position of the mobile pilot frequency, and the system performance can be improved.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a data processing method, device and system in wireless communication. Background technique [0002] In order to improve the coverage, the WLAN communication has added the Modulation and Coding Scheme (MCS) 0rep2 MCS10 method under the bandwidth of 1MHz, that is, Binary Phase Shift Keying (BPSK) modulation , the channel coding rate is 1 / 2, 2 times repetition coding is performed in one OFDM symbol, because in each Orthogonal Frequency Division Multiplexing (OFDM for short) symbol, 12 bit repetition is 2 times that is 24 Bits, so the peak to average power ratio (Peak to Average Power Ratio, referred to as PAPR) will increase, resulting in system performance degradation. [0003] The prior art proposes to reduce PAPR by multiplying repeated data by an XOR sequence, that is, performing an XOR operation on the last 12 repeated bits, and the sequence is [10000101...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L27/26
Inventor 王力
Owner HUAWEI TECH CO LTD
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