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A Prediction Method for Electromagnetic Radiation of TD-LTE Base Station PDCCH Channel

A prediction method, electromagnetic radiation technology, applied in electrical components, transmission channel monitoring, transmission monitoring, etc., can solve problems such as accurate prediction of PDCCH channel transmission status

Active Publication Date: 2020-12-25
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the relevant patented technologies that have been submitted or the published literature, there is no way to accurately predict the transmission status of the PDCCH channel from the way the PDCCH channel occupies the CCE. Therefore, new technologies are needed to accurately predict the electromagnetic radiation intensity of the PDCCH channel of the TD-LTE base station

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  • A Prediction Method for Electromagnetic Radiation of TD-LTE Base Station PDCCH Channel
  • A Prediction Method for Electromagnetic Radiation of TD-LTE Base Station PDCCH Channel
  • A Prediction Method for Electromagnetic Radiation of TD-LTE Base Station PDCCH Channel

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Embodiment Construction

[0024]In the following, the present invention will be further described in conjunction with the embodiments.

[0025]The object of implementation of the present invention is TD-LTE base station F frequency band (1880MHz~1900MHz), and the bandwidth is 20MHz. The measuring equipment adopts a portable spectrum analyzer (KEYSIGHT N9918A, measuring maximum frequency 26.5GHz) and a log periodic antenna (HyperLOG 60180, measuring frequency range 680MHz~18GHz). The antenna factor AF of the receiving antenna at 1.8GHz frequency is 30dB / m, The cable loss is 3dB.

[0026]The electromagnetic radiation prediction method of PDCCH channel of TD-LTE base station of the present invention includes the following steps:

[0027]1) According to the transmission characteristics of the physical downlink control channel (PDCCH) of the TD-LTE base station, a batch arrival queuing model based on the control channel element (CCE) aggregation level is established, and the balance state of the probability of occupying C...

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Abstract

The invention discloses a TD-LTE (Time Division Long Term Evolution) base station PDCCH (Physical Downlink Control Channel) electromagnetic radiation prediction method. The method comprises the following steps: establishing a batch arrival queuing model based on a CCE (Control Channel Element) aggregation level according to the transmission characteristics of a TD-LTE base station PDCCH; determining the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols occupied by the PDCCH averagely according to the number of CEEs occupied by the PDCCH averagely; and finally, combining TD-LTE base station transmission parameters to predict the electromagnetic radiation of a TD-LTE base station PDSCH (Physical Downlink Shared Channel). According to the TD-LTE base station PDCCH electromagnetic radiation prediction method provided by the invention, the transmission condition of the PDCCH is determined by establishing the batch arrival queuing model based on the CCE aggregation level, and a method for accurately predicting the electromagnetic radiation of the TD-LTE base station PDCCH is proposed.

Description

Technical field[0001]The invention relates to a TD-LTE base station PDCCH channel electromagnetic radiation prediction method.Background technique[0002]Long-term evolution time division duplex technology (TD-LTE) has become the mainstream domestic commercial mobile communication network technology. A large number of TD-LTE base stations make the electromagnetic radiation safety of TD-LTE base stations worthy of attention. The TD-LTE base station physical downlink control channel (PDCCH) carries downlink control information, and its occupied time-frequency resources are second only to the physical downlink shared channel (PDSCH) carrying user data services. The electromagnetic radiation generated by the PDCCH channel transmission cannot Ignore. In the TD-LTE base station, the transmission method of PDCCH channel control information is different from other channel transmission methods. The downlink control information carried by the PDCCH channel is transmitted in units of control cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/30H04B17/391
CPCH04B17/30H04B17/3913
Inventor 杨万春罗昱高协平彭艳芬
Owner XIANGTAN UNIV