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Field intensity measurement equipment and method based on PUSCH in TD-LTE

A field strength measurement and equipment technology, used in transmission monitoring, electrical components, transmission systems, etc., can solve the problems of baseband synchronization failure, unable to complete uplink synchronization field strength measurement, etc., to improve performance, facilitate engineering implementation, and simplify the process. Effect

Active Publication Date: 2018-11-20
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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  • Field intensity measurement equipment and method based on PUSCH in TD-LTE
  • Field intensity measurement equipment and method based on PUSCH in TD-LTE
  • Field intensity measurement equipment 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 invention provides field intensity measurement equipment and method based on PUSCH in TD-LTE. The equipment comprises a radio frequency front-end receiving module, a downlink digital processing module, an uplink fine synchronization module, and an energy measurement module; the uplink fine synchronization module is used for acquiring an uplink coarse synchronization location according to the timing relation of the uplink and the downlink, and obtaining the uplink fine synchronization location by correcting the uplink coarse synchronization location; the realization way of obtaining the uplink fine synchronization location by correcting the uplink coarse synchronization location is as follows: performing sliding window on the received data to obtain the data of fixed uplink sub-frame, performing channel estimation based on DFT, computing power delay spectrum PDP and peak-to-mean ratio PMR of each of sliding window data, finding out the maximum PMR of all windows, and comparing the maximum PMR with the preset threshold value, if the PMR is greater than the threshold value, performing correction adjusting of the uplink synchronization location according to the sliding window location corresponding to the maximum PMR; and accomplishing the computation and reporting of the reference signal receiving power RSRP based on PUSCH according to the uplink fine synchronization location.

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 Applications(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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