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A field strength measurement device and method based on pusch in td-lte

A technology for field strength measurement and equipment, applied in transmission monitoring, electrical components, transmission systems, etc., can solve problems such as baseband synchronization failure and inability to complete uplink synchronization field strength measurement

Active Publication Date: 2021-07-06
WUHAN HONGXIN TECH DEV CO LTD
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Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a technical solution for TD-LTE uplink signal field strength measurement. The problem with strong measurements

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  • A field strength measurement device and method based on pusch in td-lte
  • A field strength measurement device and method based on pusch in td-lte
  • A field strength measurement device and method based on pusch in td-lte

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Embodiment Construction

[0028] The technical solutions of the present invention will be further described in detail below through the embodiments in conjunction with the accompanying drawings.

[0029] The present invention provides a method for measuring the field strength of an LTE mobile phone terminal in a TD-LTE wireless communication system. The window takes the data of the fixed uplink subframe, and then performs channel estimation based on DFT, calculates the PDP and PMR of each sliding window data, finds the largest PMR in all windows, and compares it with the threshold, if it is greater than the threshold value, then According to the sliding window position corresponding to the maximum PMR, the uplink synchronization position is corrected and adjusted. After the uplink fine synchronization position is obtained, the energy of the LTE mobile terminal is calculated, and the field strength of the mobile terminal is accurately measured through this low-complexity algorithm.

[0030] In the prese...

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Abstract

The present invention provides a field strength measurement device and method based on PUSCH in TD-LTE. The device includes a radio frequency front-end receiving module, a downlink digital processing module, an uplink fine synchronization module and an energy measurement module. The timing relationship of the line is obtained to obtain the uplink coarse synchronization position, and the uplink fine synchronization position is obtained after correction; the realization method of obtaining the uplink fine synchronization position after correction is to obtain the data of the fixed uplink subframe by sliding the window on the received data, and do it based on DFT channel estimation, calculate the power delay spectrum PDP and peak-to-average ratio PMR of each sliding window data, find the largest PMR in all windows, and compare it with the preset threshold value, if it is greater than the threshold value, then According to the sliding window position corresponding to the maximum PMR, correct and adjust the uplink synchronization position; according to the uplink fine synchronization position, the calculation and reporting of the reference signal received power RSRP based on PUSCH can be completed.

Description

technical field [0001] The present invention relates to the technical field of TD-LTE uplink synchronization in the field of mobile communication, in particular to a PUSCH-based field strength measurement technical solution in TD-LTE. Background technique [0002] With the popularization of LTE mobile terminals, the precise detection of users in private network wireless communication and disaster search and rescue can timely and accurately rescue the trapped people. However, the actual wireless environment is complex and variable. If you want to accurately detect the energy of the LTE mobile terminal signal, you first need to perform strict uplink synchronization with the mobile terminal. [0003] Since TD-LTE uses time slot division to distinguish the transmission time of the uplink signal and the downlink signal, in order to obtain the synchronous position of the uplink transmission of the mobile phone, the traditional field strength meter detects the starting position of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/08H04B17/318H04B17/327
CPCH04W24/08H04B17/318H04B17/327
Inventor 倪霞邓风俞林宏李辉
Owner WUHAN HONGXIN TECH DEV CO LTD
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