LTE terminal reception gain adjustment method

A technology for terminal reception and adjustment methods, which is applied in the field of communication, and can solve problems such as consuming a lot of time and reducing computing efficiency

Active Publication Date: 2016-10-19
苏州简约纳电子有限公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The amount of stored data (the amount of data carried by 1200 subcarriers) is very large, and the subsequent processing of the data (including converting time domain data to frequency domain data, calculating data power estimates and calculating average power estimates, etc.) It consumes a lot of time and greatly reduces the computational efficiency

Method used

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  • LTE terminal reception gain adjustment method
  • LTE terminal reception gain adjustment method
  • LTE terminal reception gain adjustment method

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Embodiment Construction

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

[0029] figure 2 It is a flow chart of the method for adjusting the receiving gain of the LTE terminal in Embodiment 1 of the present invention, such as figure 2 As shown, the embodiment of the present invention specifically includes the following steps:

[0030] In step 101, a long term evolution technology LTE terminal receives time domain data of multiple cells transmitted on a transport block of a physical broadcast channel PBCH.

[0031] Specifically, the LTE TDD GPS synchronous base station sends time-domain data to multiple cells through a physical broadcast channel PBCH. The cycle of PBCH sending data is 40ms, and every 10ms is a group, which is divided into 4 groups. And, each group of data will be transmitted on a group of transport blocks in the PBCH. The LTE terminal receives data of multiple cells tra...

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Abstract

The invention discloses an LTE terminal reception gain adjustment method. The invention discloses a LTE terminal reception gain adjustment method, comprising steps: a long terminal evolution technology (LTE) terminal receives time domain data of a plurality of small cells which is transmitted on a transmission block of a physical broadcasting channel PBCH, wherein PBCH transmission block comprises N sub-frames, each sub-frame can be divided into m time slots and each time slot comprises n orthogonal frequency division multiplexing symbols; Fourier transform is performed on the time domain data to obtain frequency domain data; frequency domain data power values corresponding to a plurality of cells and on any symbol among first K orthogonal frequency division multiplexing symbols; a power estimation value is obtained on the basis of the frequency domain data power values corresponding to the plurality of cells and on any symbol among the first K orthogonal frequency division multiplexing symbols; and a difference value between the power estimation value and a preset power value is calculated and regulation is performed on a received gain value according to the difference value.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for adjusting reception gain of an LTE terminal. Background technique [0002] The present invention relates to the field of communications. Generally speaking, when a synchronous base station sends signals to cells within its service range, due to channel fading, the signals received by Long Term Evolution (LTE) terminals will gradually weaken. Therefore, it is necessary to use the receive gain control to compensate the signal level fluctuation received by the LTE terminal, and adjust the downlink received signal within the effective bandwidth range to obtain the maximum received signal, thereby ensuring the demodulation of the digital signal. [0003] The traditional method is to use the position of the reference signal when the signal is sent in the synchronous base station as a reference object to further determine the transmission position of the data signal. Then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L5/00
Inventor 吉亚平邢娅玲梁敏
Owner 苏州简约纳电子有限公司
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