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Decorrelation with interleaver in data sending and reaciving equipment

A technology of sending equipment and receiving equipment, which is applied in the direction of digital transmission system, communication between multiple stations, error correction/detection using interleaving technology, etc. It can solve problems such as unreadable data, interference, and poor system performance. To achieve the effect of reducing harm, easy to implement, and flexible

Inactive Publication Date: 2003-05-14
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] figure 2 The described transmission scheme has some drawbacks, because there are some forms of interference between multiple data streams, which have a bad impact on system performance
This is because multiple data streams simultaneously sharing the same radio resource do not satisfy the general requirement of complete orthogonality
In particular, interference can produce burst errors, making the transmitted data unreadable to the respective receiving end

Method used

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  • Decorrelation with interleaver in data sending and reaciving equipment
  • Decorrelation with interleaver in data sending and reaciving equipment
  • Decorrelation with interleaver in data sending and reaciving equipment

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Embodiment Construction

[0035] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like elements will be identified by like reference numerals.

[0036] Such as image 3 As shown, the transmission part of the communication system of the present invention will be described. In order to avoid unnecessary confusion, the receiving part is not described in detail here. Knowing the working conditions of the sending part in the present invention will directly help technicians to design the receiving part, and the corresponding inverse conversion can be performed according to the corresponding independent units in the sending part.

[0037] Such as image 3As shown, each sending device that sends data in the same channel 140 includes different interleavers 300, 310, 330, that is, the difference between the interleavers is that they use different interleaver modes. As will be described in detail below, the interleavers 300, 310, 32...

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Abstract

The invention provides a data transmitting device for transmitting data on a channel. The device is operable in a communication system that can simultaneously convey data of a plurality of data transmitting devices on one channel. The device comprises an interleaver for interleaving a source data stream, thereby generating an interleaved data stream. Further, means for transmitting said interleaved data stream on said channel is provided. The interleaver characteristics differ from interleaver characteristics of at least one other data transmitting device that simultaneously transmits data on the channel. The invention further provides a corresponding data receiving device. By decorrelating the interleavers and deinterleavers for synchronised data transmission, the invention reduces inter-stream interference.

Description

technical field [0001] The present invention relates to a data transmitting device for transmitting data on a channel, and a corresponding data receiving device, in particular to a device for interleaving and deinterleaving data streams. The invention is particularly applicable to PN interleavers. Background technique [0002] It is well known in the art that interleavers can be used to obtain some limited form of time diversity, particularly for wireless communication systems that are subject to signal fading effects due to the varying nature of the wireless channel. figure 1 An example of a communication system is shown in which the transmitter and receiver interleave or deinterleave data, respectively. [0003] exist figure 1 In , transmitters 100 , 110 , 120 , 130 transmit data over channel 140 to receivers 150 , 160 , 170 , 180 . The transmitter obtains data from a signal source 100 and then performs forward error correction (FEC) through an FEC encoder 110 to obtain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/27H03M13/29H04B1/707H04J99/00H04L1/00
CPCH04L1/0041H03M13/2742H04L1/0071H03M13/2789H04B1/7107
Inventor 克里斯琴·温格特亚历山大·戈利奇克埃德勒-冯埃尔布沃特艾科·塞德尔
Owner PANASONIC CORP