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Signal transmitting and receiving method based on time-division duplex in radio communication system

A wireless communication system, time-division duplex technology, applied in the direction of multiplex communication, communication between multiple stations, time-division multiplex system, etc., can solve problems affecting system efficiency, etc., to improve transmission efficiency, The effect of high signal to interference (noise) ratio

Inactive Publication Date: 2004-02-11
深圳敦骏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, any feedback will inevitably have time delay, and the existence of time delay will definitely affect the efficiency of the system

Method used

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  • Signal transmitting and receiving method based on time-division duplex in radio communication system
  • Signal transmitting and receiving method based on time-division duplex in radio communication system
  • Signal transmitting and receiving method based on time-division duplex in radio communication system

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Embodiment Construction

[0026] In existing multi-antenna systems, the premise of its application is the existence of independent Rayleigh fading channels. The key to the realization of the multi-antenna system lies in the commercialization of the multi-antenna at the mobile station. The difficulty lies in the contradiction between the portability of the equipment and the independence of the multi-antenna channels. Due to the diversity of the actual environment, when the distance between the receiving antennas of the mobile station is half of the carrier wavelength, there may still be a large correlation between the fading channels experienced by the signal, which makes it difficult to set up the antennas of the mobile station. However, for noise, since the incoming azimuth angle distribution of the noise signal is relatively wide, and the noise itself is also a combination of multiple signals, it is better to realize the independent reception noise of multiple antennas on the mobile station than to en...

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Abstract

This invention discloses a method for emitting and receiving signals based on time duplex in radio communication system setting multiple antennas at sides of a base station and mobile station. All antennas of the basic station emit pilot signals in definite time periods, the mobile station measures all received pilot signals from its own different receiving antennas, selecting one or more as the up-line emitting antenna, and selecting one or more of the basic station as the emitting antenna and inform the basic station emitting signals to the mobile station according to the inform of mobile station and the selected antenna in the period of down stream emitting.

Description

technical field [0001] The present invention relates to signal transmission and reception methods in a wireless communication system. Background technique [0002] Wireless communication provides the means for people to connect with each other and obtain information anytime and anywhere, so it has been rapidly popularized in recent years. However, in the current wireless environment, due to the requirement of mobility, the directional transmission of wireless signals has certain limitations, which inevitably causes mutual interference between wireless communications of different users. In order to ensure the normal progress of various wireless communications, the use of wireless spectrum is generally subject to strict restrictions and management. In this way, wireless communication cannot have a large bandwidth like wired communication. Therefore, based on the limited available wireless spectrum, how can Increasing the information transmission capability of the wireless com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04J3/00
Inventor 周雷孙立新
Owner 深圳敦骏科技有限公司
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