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Uplink and downlink time slot synchronization device and method and computer readable storage medium

A synchronization device and synchronization signal technology, which is applied in the direction of synchronization device, transmission path separation device, time division multiplexing system, etc., can solve the problems of high implementation cost, low detection accuracy, high power consumption, etc., and save system overhead Effect

Active Publication Date: 2021-01-15
CHINA MOBILE COMM LTD RES INST +1
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Problems solved by technology

[0003]However, there are some problems in the above schemes: the implementation cost of scheme one is high, and the power consumption is relatively large; scheme two is not suitable for 5G standard signals, and 5G standard signals There is no obvious characteristic signal at the time of switching. If the second scheme is adopted, the detection accuracy is very low
Therefore, the industry does not yet have a low-cost uplink and downlink time slot synchronization solution suitable for 5G standard signals

Method used

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  • Uplink and downlink time slot synchronization device and method and computer readable storage medium
  • Uplink and downlink time slot synchronization device and method and computer readable storage medium
  • Uplink and downlink time slot synchronization device and method and computer readable storage medium

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Embodiment Construction

[0052] The present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0053] The uplink and downlink time slot synchronization scheme proposed in the embodiment of the present invention is applicable to but not limited to the distributed pico base station cost reduction scheme, such as figure 1 shown. The distributed pico base station includes: a baseband unit, a switching unit and a radio frequency unit. In order to reduce the total cost of the distributed pico base station network, the radio frequency unit is implemented by connecting multiple amplification units externally through a power divider to expand its coverage. The external amplifying unit works in the TDD mode, and its uplink and downlink time slot switching switches need a control signal (that is, the above-mentioned uplink and downlink time slot synchronization signal).

[0054] An embodiment of the present invention provides an uplink and downlink time slot sync...

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Abstract

The embodiment of the invention provides an uplink and downlink time slot synchronization device and method and a computer readable storage medium. The device comprises a radio frequency unit, a powerdivider and an amplification unit, wherein the radio frequency unit is used for demodulating an uplink and downlink time slot synchronization signal and a radio frequency signal based on a preset channel state information reference signal CSIRS, and synchronously transmitting the uplink and downlink time slot synchronization signal and the radio frequency signal to the power divider; the CSIRS islocated at a downlink and uplink switching position, and the power intensity of the CSIRS is higher than the overall power intensity of a downlink signal; and the amplification unit is used for synchronizing the uplink and downlink time slot synchronization signals and the radio frequency signals transmitted by the power divider, and controlling the transmission of the downlink signals and the uplink signals based on the uplink and downlink time slot synchronization signals.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an uplink and downlink time slot synchronization device, method and computer-readable storage medium. Background technique [0002] The radio frequency amplification devices (such as repeaters) that support the time division duplex (TDD) system all need an uplink and downlink synchronization signal to control the transceiver switch. At present, the industry mainly adopts two schemes to realize: scheme 1. The uplink and downlink time are transmitted through a modem The gap is demodulated, and then the transceiver switch is controlled. Solution 2: Use a radio frequency power detector to detect the uplink and downlink switching moments from the radio frequency signal envelope signal, and then control the transceiver switch. [0003] However, there are some problems in the above schemes: the implementation cost of scheme 1 is high, and the power consumption is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04W56/00H04L5/00H04L1/00
CPCH04J3/0602H04J3/0652H04W56/0005H04L5/0005H04L5/0057H04L1/0026H04L1/0083
Inventor 张欣旺曹汐
Owner CHINA MOBILE COMM LTD RES INST
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