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Frame structure for wireless communication and signal processing method thereof

A signal processing and wireless communication technology, applied in the direction of preventing/detecting errors through diversity reception, digital transmission systems, electrical components, etc., can solve problems such as extraction, and achieve the effect of improving demodulation and shortening distance

Active Publication Date: 2019-01-01
SHANGHAI TAOLINK TECHNOLOGIES CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, how to extract the channel state information of the terminal from the pilot signals of multiple terminals is also a difficult point

Method used

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  • Frame structure for wireless communication and signal processing method thereof
  • Frame structure for wireless communication and signal processing method thereof
  • Frame structure for wireless communication and signal processing method thereof

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing, the present invention is illustrated,

[0041] Such as figure 1 As shown, it is a schematic diagram of the frame structure of the present invention. The frame structure is an uplink frame, which is composed of a data symbol sequence, a pilot symbol sequence and a synchronization symbol sequence. The data symbol sequence is split into lengths L1 and L2 The two segments of , insert a pilot symbol sequence with a length of LP between the two data symbol sequences, and insert the first segment of a synchronization symbol sequence with a length of LS1 between the first segment of the data symbol sequence and the pilot sequence , the first LS2 symbols of the pilot symbol sequence are also the second segment of the synchronization symbol sequence, and the combination of the first segment and the second segment of the synchronization symbol sequence constitutes a complete synchronization symbol sequence.

[0042] Such as figure 2...

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Abstract

The invention discloses a frame structure for wireless communication and a signal processing method thereof. The frame structure for wireless communication is composed of a data code element sequence,a pilot frequency code element sequence and a synchronous code element sequence, wherein a pilot frequency code element sequence of a length LP is inserted between two segments of data code element sequence; the first segment of the synchronous code element sequence with a length LS1 is inserted between the first segment of data code element sequence and the pilot frequency code element sequence;and the first LS2 code elements of the pilot frequency code element sequence are also the second segment of the synchronous code element sequence. The signal processing method of the frame structurefor wireless communication includes the steps: performing channel coding on the input data to obtain a coding sequence; performing XOR on the coding sequence and a scrambling code sequence to obtain ascrambling sequence; performing interleaving on the scrambling sequence to obtain an interleaving sequence; mapping the interleaving sequence to a data code element sequence; combining the code element sequences to form an uplink frame according to the above frame structure; and performing code element upsampling on the code element sequences of the uplink frame to obtain an uplink signal to be transmitted. The frame structure for wireless communication and the signal processing method thereof make full use of channel resources and can reduce the cost of transmitting pilot frequency and synchronous signals.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a frame structure of wireless communication and a signal processing method thereof, in particular to a frame structure of uplink communication of wireless communication for multi-terminal transmission and multi-antenna reception of a base station and a signal processing method thereof. Background technique [0002] Multi-terminal transmission and base station multi-antenna reception are a typical MIMO communication system, where MIMO refers to a multiple-input multiple-output antenna system. For this kind of communication system, a key is random access, which means that the terminal randomly sends uplink data packets to the base station. In order to make full use of the spatial resolution capability of the MIMO system and successfully receive uplink signals from multiple terminals simultaneously sent during the random access process, a special frame structure design is require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/06H04L27/26
CPCH04L1/0056H04L1/0071H04L1/0083H04L1/0637H04L27/2656H04L27/2675
Inventor 屈代明汪志冰何辉吴华意
Owner SHANGHAI TAOLINK TECHNOLOGIES CORPORATION
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