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Apparatus and associated method,for forming signal exhibiting space-time redundancy

A device and a technology of output symbols, applied in the field of data communication, can solve the problems of increasing bandwidth consumption, etc., and achieve the effect of improving transmission diversity and increasing spatio-temporal redundancy

Inactive Publication Date: 2004-02-04
NOKIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Improving diversity in communication signals generally requires increased bandwidth consumption to communicate the communication signals, which in turn conflicts with the competing goal of minimizing the bandwidth required to communicate information between the transmitting and receiving stations

Method used

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  • Apparatus and associated method,for forming signal exhibiting space-time redundancy
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  • Apparatus and associated method,for forming signal exhibiting space-time redundancy

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Embodiment Construction

[0029] Detailed description of the preferred embodiment

[0030] first reference figure 1 , wherein a communication system is illustrated generally at 10, which can communicate data between a transmitting station 12 and a receiving station 14 using a communication channel 16. A transmitting station utilizes at least one transmitting antenna, so it must be possible to ensure that the signals from all transmitting antennas are mutually uncorrelated. Similarly, the receiving station also utilizes at least one receiving antenna. Communication channels are susceptible to fading, or to some extent require channel coding in all transmit antennas. A wireless channel with multipath propagation is usually called a fading channel, for example, the channel may exhibit quasi-static fading.

[0031] The communication system 10 represents, for example, a cellular communication system in which the transmitting station 12 forms the transmitting part of the mobile station and the receiving s...

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PUM

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Abstract

The invention concerns apparatus (28), and an associated method for a sending station (12) operable in a communication system (10) having a communication channel susceptible to fading, such as quasistatic fading. Transmission diversity of symbols to be sent by the sending station (12) is increased without necessitating a corresponding increase in the bandwidth required to communicate the symbols.

Description

[0001] The present invention generally relates to data communication in channels susceptible to quasi-static or other fading, such as wireless channels used to transmit data during operation of a cellular communication system. More particularly, the present invention relates to apparatus and related methods for improving the time diversity of data transmitted in a channel, such that recovery of the data is facilitated when received at a receiving station. Through the operation of the embodiments of the present invention, space-time redundancy can be provided without correspondingly increasing the required channel bandwidth. Background technique [0002] The development of communication technology has made wireless communication systems widely used. Cellular communication systems, as well as other types of multi-user wireless communication systems, can be reliably used by a large number of users for the communication of voice and non-voice information. [0003] A communication...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/25H04B7/02H04L1/00H04L1/06
CPCH04L1/0618H04L1/06
Inventor D·M·约内斯库
Owner NOKIA CORP
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