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A method to improve the effective distance of 4G public security positioning system

A positioning system and effective distance technology, which is applied in the direction of location information-based services, specific environment-based services, data processing applications, etc., can solve the problems that the public security organs are difficult to accurately locate the target user, and the adsorption distance of the simulated base station is short, so as to improve the The effect of positioning success rate, increasing effective distance, and improving adsorption distance

Active Publication Date: 2020-08-07
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a method for improving the effective distance of the 4G public security positioning system, which solves the problem in the prior art that the adsorption distance of the simulated base station is relatively short, which makes it difficult for the public security organs to locate the target user in a timely and accurate manner.

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  • A method to improve the effective distance of 4G public security positioning system
  • A method to improve the effective distance of 4G public security positioning system

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Embodiment Construction

[0027] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The absorption in the IDLE state is mainly to use the principle of cell reselection to make the UE reselect to a cell constructed by simulating the base station. The principle of cell reselection can be divided into two aspects: neighbor cell measurement start rules and cell reselection criteria:

[0029] Neighboring cell measurement start rule: For intra-frequency cells, if the serving cell satisfies Srxlev>SIntraSearchP and Squal>SIntraSearchQ, that is, the serving cell RSRP is greater than the threshold and RSRQ is greater than the threshold, the UE does not perform intra-frequency measurement. Otherwise, the UE will perform intra-frequency measurements. RSRP is defined as the average power of subcarriers carrying cell-specific pilots....

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Abstract

The invention belongs to the technical field of wireless communications, and discloses a method for improving an effective distance of a 4G public security positioning system, comprising simulating anMAC layer of the base station to construct a virtual user, allocating the remaining schedulable RBs to the virtual user, and simulating the physical layer of the base station to uniformly process thevirtual users and real users so as to increase interference with target users. The invention solves the problem that the analog base station has a relatively short adsorption distance in the prior art, which makes it difficult for the public security organ to locate the illegal user in time and accurately. The invention is capable of enabling the analog base station to adsorb the target user at aposition farther from the target user, thereby improving the effective distance of the 4G positioning system, and improving the positioning success rate of public security personnel.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for increasing the effective distance of a 4G public security positioning system. Background technique [0002] With the rapid development of communication technology, the wireless network has been upgraded from 2G and 3G to 4G, and 2G and 3G users are also rapidly switching to 4G. 4G not only makes the technology used in the network more complicated, but also makes the public security organs Locating users becomes more difficult. [0003] At present, public security systems generally use LTE analog base stations and corresponding energy detection devices to locate LTE terminals. The user configures the working parameters of the simulated base station so that the LTE terminal in the surrounding IDLE state is reselected to the cell constructed by the simulated base station, that is, absorbs the terminal. Illegal users continue to trigger it to send uplink...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W4/35H04W24/02H04W36/00H04W72/04G06Q50/26
CPCG06Q50/26H04W4/02H04W4/35H04W24/02H04W36/0094H04W72/0453
Inventor 江世宇颜志凌邵世才
Owner WUHAN HONGXIN TELECOMM TECH CO LTD