A middle RF sub-system, bandwidth-varying transceiver and flexible filtering unit

A filter unit and frequency conversion unit technology, applied in the field of communication, can solve the problem that the same base station cannot support multiple baseband services, and achieve the effect of cost saving

Active Publication Date: 2010-06-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] A main purpose of the embodiments of the present invention is to provide an intermediate radio frequency subsystem and a variable bandwidth transceiver to solve the problem in the prior art that the same base station cannot support multiple baseband services

Method used

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  • A middle RF sub-system, bandwidth-varying transceiver and flexible filtering unit
  • A middle RF sub-system, bandwidth-varying transceiver and flexible filtering unit
  • A middle RF sub-system, bandwidth-varying transceiver and flexible filtering unit

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Embodiment Construction

[0052] In order to enable the same base station to support multiple baseband services, embodiments of the present invention provide a mid-radio frequency subsystem, a flexible analog transmitter, a flexible analog receiver, and an analog flexible feedback receiver. The flexibility here means that it can support multiple baseband services and wireless standards.

[0053] See Picture 9 As shown, the intermediate radio frequency subsystem of the embodiment of the present invention includes a baseband / intermediate radio frequency interface 901, a digital clock unit 909, an analog local oscillator unit 908, a digital transmitter 902, a flexible feedback receiver 904, a flexible analog transmitter 905, and a DAC unit 911, digital receiver 903, ADC unit 910, flexible analog receiver 906, AAGC unit 912, duplexer 907, antenna 913, etc.

[0054] The difference between the radio frequency subsystem of the embodiment of the present invention and the prior art is that the flexible analog tran...

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Abstract

The disclosed middle RF subsystem comprises at least: a digital emitter, a digital receiver, a DAC unit, an ADC unit, a duplexer, the antenna, a flexible analog emitter to filter, up mix and amplify signal from DAC unit to output to the duplexer, a flexible feedback receiver to adjust signal frequency and feedbacks signal to the digital emitter, and a flexible analog receiver to process signal andsend result to the ADC unit. This invention frees to wireless system and baseband signal.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to an intermediate radio frequency subsystem, a variable bandwidth transceiver and a flexible filtering unit. The variable bandwidth transceiver includes a flexible analog transmitter, a flexible analog receiver, and a flexible analog feedback receiver. machine. Background technique [0002] In a wireless communication system, a base station generally includes subsystems such as clock, transmission, monitoring, baseband, and RF. In the uplink, the radio frequency subsystem converts the digital baseband signal from the baseband subsystem into a radio frequency signal after a series of digital and analog processing and sends it to the wireless space. In the downlink, the radio frequency subsystem receives the radio frequency signal from the antenna and undergoes a series of analog and digital processing, then transforms it into a digital baseband signal and transmits it to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04B1/04
CPCH04B1/40
Inventor 薛子光叶四清郦舟剑
Owner HUAWEI TECH CO LTD
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