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Digital transmitter, digital receiver, medium radio frequency sub-system and signal processing method

A technology for digital receivers and transmitters, used in transmission systems, diversity/multi-antenna systems, transmission control/equalization, etc.

Active Publication Date: 2013-08-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0033] In view of this, the purpose of the embodiment of the present invention is to provide a digital transmitter, a digital receiver, an intermediate radio frequency subsystem and a signal processing method to solve the current There is a problem that the same base station cannot support multiple services in the technology

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  • Digital transmitter, digital receiver, medium radio frequency sub-system and signal processing method
  • Digital transmitter, digital receiver, medium radio frequency sub-system and signal processing method
  • Digital transmitter, digital receiver, medium radio frequency sub-system and signal processing method

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Embodiment Construction

[0082] see Figure 4a with Figure 4b As shown, the digital transmitter and digital receiver in the intermediate radio frequency subsystem of the embodiment of the present invention are general digital transmitters and general digital receivers. The general digital transmitter is used to convert the downlink digital baseband signal from the baseband subsystem to an integer rate, perform fractional rate conversion on the integer rate converted signal according to the preset filter coefficient, and send it to the DAC module; general digital receiver, used for digital down-conversion and power detection processing and integer rate conversion processing of the received digital signal from the ADC module, and performs integer rate conversion processing on the data after the integer rate conversion processing according to the preset filter coefficient Fractional rate conversion, and then the obtained uplink digital baseband signal is sent to the baseband subsystem.

[0083] The ra...

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Abstract

A universal digital transmitter is provided, which resolves that the same base station can not support several services in the prior art. The universal digital transmitter includes: a universal rate conversion module for implementing the universal poly-phase interpolating filtering for the downlink baseband signal from the baseband middle radio frequency interface module to implement the random ratio conversion of signal rate; a first integral rate conversion module for implementing the integral rate conversion for the signal which is random ratio converted; the predistortion / digital frequency conversion processing modules et al, for implementing the predistortion and digital frequency conversion for the signal which is integral rate converted and sending it to the digital analog conversion unit DAC. At the same time, a universal digital receiver and a middle radio frequency subsystem and a signal processing method are provided.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a digital transmitter, a digital receiver, an intermediate radio frequency subsystem and a signal processing method. Background technique [0002] In a wireless communication system, a base station generally includes subsystems such as clock, transmission, monitoring, baseband, and intermediate radio frequency. In the uplink, the intermediate radio frequency subsystem transforms the digital baseband signal from the baseband subsystem into a radio frequency signal and sends it to the wireless space after a series of digital and analog processing. In the downlink, the intermediate radio frequency subsystem receives the radio frequency signal from the antenna, and after a series of analog and digital processing, it converts it into a digital baseband signal and transmits it to the baseband subsystem. [0003] figure 1 It is a schematic structural diagram of an intermediate r...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/02H04B7/005
CPCH04B1/04
Inventor 叶四清朱尔霓邓杰锋伊果·潘可夫切尔尼科夫·安东
Owner HUAWEI TECH CO LTD