A multi-time base base station and its construction method
A construction method and base station technology, applied in the field of multi-time base stations and their construction, can solve problems such as high deployment costs and excessive user budgets
Active Publication Date: 2020-10-30
ZHENGZHOU LOCARIS ELECTRONICS TECH CO LTD
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a multi-time base base station and its construction method, which can solve the problem of high deployment cost in the prior art when there are many synchronization stages in TDOA-based positioning without adding base stations. , leading to the problem of exceeding the user's budget
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Embodiment
[0029] Embodiment: the multi-time base base station includes at least two independent time references, and correspondingly, the multi-time base base station is virtualized into at least two independent virtual base stations. Adopt above-mentioned technical scheme, set up multi-time base base station, promptly there are at least two independent time references in a base station, can reduce like this under the situation of not increasing the number of base stations, the cost when there are many synchronous levels in positioning based on TDOA; The multi-time base The main application scenario of the base station is in the narrow and long one-dimensional positioning environment based on the time difference of arrival (TDOA). Realize that there are more than two time bases in one base station; the multi-time base base station includes two independent time bases, namely time base 1 and time base 2; correspondingly, the multi-time base base station is virtualized into two independent ...
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The invention relates to a multi-time-base base station and a construction method thereof. The multi-time-base base station comprises at least two independent time bases, and correspondingly, the multi-time-base base station is virtualized to at least two independent virtual base stations. The construction method of the multi-time-base base station comprises following steps: (1) an upper base station has a time base 1, and the base station has a time base 2; (2) the upper base station transmits a synchronous signal to the base station, and the base station monitors and receives the synchronoussignal of the upper base station and synchronizes a clock of the base station to the time base 1 of the upper base station by employing a synchronization algorithm; and (3) the local time base 2 of the base station is maintained, the synchronous signal is transmitted to an adjacent base station thereof, the base station becomes the multi-time-base station, and sub-base stations of the base station all perform synchronous conversion by regarding the time base 2 as the standard. The problem that the user budget exceeds the standard due to high laying cost based on TDOA positioning when the synchronization levels are many can be solved without increasing the base stations.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a multi-time base base station and a construction method thereof. Background technique [0002] TDOA positioning is a positioning method using time difference. By measuring the time it takes for the signal to reach the monitoring station, the distance to the source of the signal can be determined. Using the distance from the signal source to each monitoring station (with the monitoring station as the center and the distance as the radius to draw a circle), the position of the signal can be determined. The positioning method based on TDOA technology measures time difference instead of absolute time. This method only needs to maintain synchronization between base stations, and does not require strict time synchronization between base stations and tags. It is relatively easy to implement and is most suitable for ultra-wideband positioning systems. [0003] D...
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IPC IPC(8): H04W56/00
CPCH04W56/001
Inventor 马琳琳张绘军信金龙许连杰肖岩张勇
Owner ZHENGZHOU LOCARIS ELECTRONICS TECH CO LTD