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Cell signal power measurement method

A signal power and power technology, applied in the field of communication, can solve the problems of timing deviation, frequency deviation, difficulty in obtaining measurement results, etc., to reduce the implementation cost and improve the measurement accuracy.

Active Publication Date: 2018-07-13
罗锦超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The problem with existing cell signal power measurement solutions is that it is difficult to obtain accurate measurement results due to the influence of timing deviation and frequency deviation in the scenario of synchronization deviation

Method used

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specific Embodiment 1

[0053] This embodiment is a preferred implementation manner of the method for measuring cell signal power in the present invention.

[0054] see figure 1 ,Such as figure 1 As shown, the method for measuring cell signal power in this embodiment includes:

[0055] S101. The terminal receives sample-level synchronized data at the frequency point of the cell to be tested;

[0056]Determine the frequency point of the cell to be measured according to the measurement task, and after completing the sample-level synchronization, start receiving data from the starting point of the midamble in the P-CCPCH, and receive a total of 128 samples to obtain the received data;

[0057] Wherein, the sample-level synchronization can adopt various sample-level synchronization methods in the prior art, which is not specifically limited in the present invention;

[0058] S102. Acquire frequency-domain data of the received training sequence and time-domain data of the received training sequence;

...

specific Embodiment 2

[0096] This embodiment is another preferred implementation manner of the method for measuring cell signal power in the present invention.

[0097] see figure 2 ,Such as figure 2 Shown, the measuring method of the present embodiment comprises:

[0098] S201. The terminal receives sample-level synchronized data at the frequency point of the cell to be tested;

[0099] Determine the frequency point of the cell to be measured according to the measurement task, and after completing the sample-level synchronization, start receiving data from the starting point of the midamble in the P-CCPCH, and receive a total of 128 samples to obtain the received data;

[0100] Wherein, the sample-level synchronization can adopt various sample-level synchronization methods in the prior art, which is not specifically limited in the present invention;

[0101] S202. Acquire frequency-domain data of the received training sequence and time-domain data of the received training sequence;

[0102] ...

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Abstract

The invention discloses a cell signal power measurement method. The method comprises the following steps: receiving sample point-level synchronized data at a frequency point of a to-be-measured cell by a terminal; acquiring receiving training sequence frequency domain data and receiving training sequence time domain data from the received data; dividing local training sequence frequency domain data by the receiving training sequence frequency domain data to obtain a frequency domain ratio sequence; dividing the local training sequence time domain data by using the receiving training sequence time domain data to obtain a time domain ratio sequence; performing slipping autocorrelation on the frequency domain ratio sequence to obtain the frequency domain measurement power; performing slippingautocorrelation on the time domain ratio sequence to obtain time domain measurement power; and taking the greater value in the frequency domain measurement power and the time domain measurement poweras the cell signal power. Through the technical scheme disclosed by the invention, the influence on the cell signal power measurement by the timing deviation and frequency deviation can be effectively reduced, and the measurement precision is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for measuring cell signal power in a cellular wireless communication system. Background technique [0002] In a mobile communication system, when a mobile terminal performs radio resource management activities such as cell selection, cell reselection, and cell handover, it needs to measure the signal power of the cell to select a cell that meets the power condition for mainstreaming. [0003] In different communication systems, measurement objects and names are different, but there are a large number of measurement objects that essentially only measure the signal power of the cell to be measured, but do not include noise and interference. For example, received signal code power (RSCP for short) in Time Division Synchronous Code Division Multiple Access (abbreviation, TD-SCDMA) system, wideband code division multiple access (abbreviation, WCDMA) system, and long ter...

Claims

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Application Information

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IPC IPC(8): H04B17/327
Inventor 蒋文豪李铮欧阳卫华
Owner 罗锦超
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