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A method and device for measuring field strength of an LTE uplink signal based on synchronous processing

A technology of synchronization processing and measurement method, applied in synchronization devices, wireless communication, digital transmission systems, etc., can solve the problems of inaccurate baseband synchronization, weak downlink signal, inability to accurately complete uplink synchronization and field strength measurement, etc., to improve accuracy improve performance, solve the effect of changing uplink synchronization position

Active Publication Date: 2021-02-02
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 measuring the field strength of LTE uplink signals based on synchronous processing. Problems with Uplink Synchronization and Field Strength Measurement

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  • A method and device for measuring field strength of an LTE uplink signal based on synchronous processing
  • A method and device for measuring field strength of an LTE uplink signal based on synchronous processing
  • A method and device for measuring field strength of an LTE uplink signal based on synchronous processing

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Embodiment Construction

[0029] The present invention will be described in further detail below through the embodiments in conjunction with the accompanying drawings.

[0030] The present invention provides a method for measuring the field strength of an uplink signal applied to an LTE mobile phone terminal in an LTE system. The main idea is to add an uplink precise synchronization process on the basis of a traditional field strength meter. By performing sliding window decoding on the received data, Correct the starting position of the uplink fixed subframe according to the CRC decoding result and the estimated time offset value to obtain accurate uplink synchronization, enter the uplink RSRP measurement process, obtain the field strength measurement result, and according to the time offset measured on the fixed subframe The value adjusts the starting position of the fixed subframe in real time to maintain uplink synchronization at any time.

[0031] In the present invention, the energy or field stren...

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Abstract

The present invention provides a method for measuring field strength of LTE uplink signals based on synchronous processing, which includes performing baseband synchronous processing, receiving and demodulating downlink signals of LTE base stations, and obtaining uplink resource allocation information, cell ID numbers and downlink signals by analyzing the downlink signals. Synchronize the starting position, and obtain the coarse synchronization position of the uplink subframe according to the timing relationship between the uplink and the uplink; the fine synchronization of the uplink includes obtaining the fine synchronization position of the uplink through adjustment and correction according to the position of the uplink coarse synchronization, and the realization method of the adjustment and correction In order to perform sliding window decoding on the received data, correct the starting position of the uplink fixed subframe according to the CRC decoding result and the estimated value of the time offset to obtain accurate uplink synchronization; measure the uplink field strength, including according to the uplink fine synchronization position, Complete the RSRP calculation and reporting of the LTE mobile terminal; uplink synchronization maintenance, including real-time adjustment of the uplink synchronization position, to maintain uplink synchronization.

Description

technical field [0001] The invention relates to an uplink synchronization technology in the field of mobile communication, in particular to a technical solution for measuring the field strength of an LTE uplink signal based on synchronization processing. Background technique [0002] The uplink signal field strength measuring instrument is used to measure the uplink signal strength emitted by LTE mobile phones. For the TDD standard, since TD-LTE uses time slot division to distinguish the transmission time of uplink signals and downlink signals, the existing TD-LTE uplink signal field strength meter must detect the downlink signal of the base station and obtain the time of uplink transmission of the mobile phone. slot synchronization to realize the field strength measurement of the uplink signal of TD-LTE mobile phones; for the FDD standard, FDD-LTE transmits and receives on two symmetrical frequency channels separated (uplink and downlink frequency interval 190MHz), the exis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/08H04W56/00H04L1/00
CPCH04L1/0061H04W24/08H04W56/0005
Inventor 倪霞邓风李辉
Owner WUHAN HONGXIN TECH DEV CO LTD
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