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Wireless communication signal frequency spectrum moving method and system

A signal spectrum and wireless communication technology, applied in the field of wireless communication signal spectrum transfer method and transfer system, can solve problems such as large hardware volume, a large number of hardware devices, inconvenience, etc., and achieve the effect of high spectrum utilization and high equipment integration.

Pending Publication Date: 2021-11-09
山东世飓通信技术有限公司
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Problems solved by technology

[0004] In the prior art, the multi-channel transmission of many frequency points of FDD and TDD wireless communication signals can only be supported and realized by building blocks of hardware, which has technical problems of high cost, large hardware volume, and difficult implementation process
Especially when used in special fields, a large number of hardware devices are required, which is not only very inconvenient, but also extremely costly

Method used

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  • Wireless communication signal frequency spectrum moving method and system
  • Wireless communication signal frequency spectrum moving method and system

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Embodiment

[0029] Such as figure 1 , figure 2 As shown, a wireless communication signal spectrum shifting system includes an ADC analog-to-digital conversion unit, an FPGA chip and a plurality of DAC digital-to-analog conversion units connected in sequence, and the FPGA chip includes a filter module, a signal replication module and a power scaling module . The wireless communication signal spectrum relocation system can quickly and flexibly realize the FDD / TDD signal relocation in different spectrum ranges.

[0030] Using FPGA technology, using VERILGO HDL language, realizes the copying and forwarding of RF signals, after performing A / D digital conversion on the received RF signals, using the programmable characteristics of FPGA, realizes real-time copying of the digital data of RF signals, and The signal strength is enlarged or reduced according to the requirements, and transmitted to the digital interface of the corresponding RF transmitting chip according to the required number of ...

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Abstract

The invention relates to the technical field of wireless communication, in particular to a wireless communication signal frequency spectrum moving method and system. The moving method comprises the following steps: 1) carrying out baseband signal processing and ADC analog-to-digital conversion on a baseband signal of an input FDD / TDD signal, and moving a frequency point to a specified central frequency point; 2) enabling an FPGA chip to sequentially filter and copy N parts of the obtained central frequency point signals, and respectively reduces or amplifies the power of the N parts of signals; and 3) performing DAC digital-to-analog conversion on the reduced or amplified N signals, and outputting the signals to a plurality of different frequency points. According to the invention, movement of FDD and TDD wireless communication signals on different frequency spectrum can be rapidly and flexibly realized, simultaneous movement of one path of FDD and TDD signals on a plurality of different frequency spectrum can be realized, the equipment integration level is high, and the frequency spectrum utilization rate is high.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and a system for moving a frequency spectrum of a wireless communication signal. Background technique [0002] The development of intelligent terminal equipment has promoted the upgrading of communication technology, and the demand for high-bandwidth data traffic has promoted the rapid upgrading of my country's communication network. The LTE licenses of the three major operators have been quickly approved. According to the requirements of the Ministry of Industry and Information Technology, my country's LTE construction adopts two networking technologies, TDD and FDD. TDD is a technique for discriminating wireless channels in time in a downlink operation of a frame period and continuing an uplink operation. FDD is a technology that uses two independent channels to transmit information downward and upward respectively. [0003] At present, there are many ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/00H04B1/04H04L5/14
CPCH04L27/0014H04B1/04H04L5/14H04L5/1469H04L2027/0018
Inventor 宁雁斌
Owner 山东世飓通信技术有限公司
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