Continuous pilot processing method and device for digital wireless communication system

A digital wireless and communication system technology, applied in the field of communication, can solve the problems of pilots occupying many resources, large frequency reuse coefficient, and large loss of system spectrum efficiency, etc., achieve high spread spectrum gain, reduce the number of pilots, and improve the efficiency of pilots. Effect of Recovery Accuracy vs. Timing Accuracy

Inactive Publication Date: 2011-08-10
北京清深技术开发中心有限公司
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Problems solved by technology

But the consequence is that the pilot frequency occupies too many resources, the frequency r

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  • Continuous pilot processing method and device for digital wireless communication system
  • Continuous pilot processing method and device for digital wireless communication system
  • Continuous pilot processing method and device for digital wireless communication system

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0036] The embodiment of the present invention provides a new interference-free wideband code that occupies few resources without interference between pilots in the networking system, between reference signals (pilots) and traffic channels under the condition of synchronization of the entire network. Minute continuous reference signal (pilot) setting method. In the OFDM system, the embodiment of the present invention no longer uses the traditional comb or block reference signal (pilot), but uses the generalized or narrow zero-correlation code group sequence occupying ...

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Abstract

The invention discloses a continuous pilot processing method and a continuous pilot processing device for a digital wireless communication system. The method comprises the following steps of: determining the width of a pilot code block zero correlation window according to a minimum network topology structure and a target network topology structure of the digital wireless communication system; determining the length of a complete complementary orthogonal code pair according to the width of the pilot code block zero correlation window; comparing the number of pilots which can be provided by the digital wireless communication system with the number of the pilots to be transmitted, and determining a pilot periodical transmission structure according to a comparison result; and transmitting the pilots generated according to the complete complementary orthogonal code pair in the digital wireless communication system according to the determined periodical transmission structure. By the method and the system, the number of the pilots can be greatly reduced, system resource consumption is reduced, and interference among the pilots and between the pilots and service channels are completely eliminated.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a continuous pilot processing method and device in a digital wireless communication system. Background technique [0002] In digital wireless communication systems, real-time estimation of random time-varying Channel Impulse Response (CIR) or Transfer Function (Transfer Function) is extremely important for realizing efficient and reliable information transmission. The channel estimation is realized by sending known reference signals (also known as pilots). [0003] The reference signal (pilot) design should ensure that in any propagation environment, there is no mutual interference (orthogonal) between the reference signal (pilot) and between the reference signal (pilot) and the traffic channel, so as to avoid the interference of the reference signal (pilot) Restoring accuracy takes a toll on system performance. Although a non-orthogonal reference signal (pilot) has also...

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Application Information

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IPC IPC(8): H04L27/26H04J13/18
Inventor 李道本
Owner 北京清深技术开发中心有限公司
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