Apparatus and method for transmission system
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsZhancang Wang, Chen He
Life of this patent
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Abstract
An apparatus and a method for transmission system are disclosed. According to an embodiment, a voltage standing wave ratio (VSWR) detection apparatus, comprising: a signal processing circuit with 1-bit analog-to-digital converter (ADC) functionality configured to receive a forward coupled signal in a transmission line of an antenna system, receive a reverse coupled signal in the transmission line of the antenna system, detect the forward coupled signal and the reverse coupled signal, convert the forward detected signal and the reverse detected signal to an analog voltage signal mapped to a return loss value, convert by the 1-bit ADC the analog voltage signal into a digital pulse train and output the digital pulse train to a digital interface of a processing device or unit.
Claims20
A voltage standing wave ratio (VSWR) detection apparatus, comprising:
- a signal processing circuit with 1-bit analog-to-digital converter (ADC) functionality configured to receive a forward coupled signal in a transmission line of an antenna system, receive a reverse coupled signal in the transmission line of the antenna system, detect the forward coupled signal and the reverse coupled signal, convert the forward detected signal and the reverse detected signal to an analog voltage signal mapped to a return loss value, convert by the 1-bit ADC the analog voltage signal into a digital pulse train and output the digital pulse train to a digital interface of a processing device or unit.
A voltage standing wave ratio (VSWR) measure apparatus, comprising:
- a digital interface configured to receive a digital pulse train output by a VSWR detection apparatus comprising a signal processing circuit with 1-bit analog-to-digital converter (ADC) functionality configured to receive a forward coupled signal in a transmission line of an antenna system, receive a reverse coupled signal in the transmission line of the antenna system, detect the forward coupled signal and the reverse coupled signal, convert the forward detected signal and the reverse detected signal to an analog voltage signal mapped to a return loss value, convert by the 1-bit ADC the analog voltage signal into a digital guise train and output the digital pulse train to a digital interface of a processing device or unit;
- and
- a processing unit configured to count a total number of the digital pulse train in a predefined timing window and perform, based on the total number of the digital pulse train, at least one of determining the VSWR, determining a state of the antenna system and triggering a standing wave condition alarm.
A method implemented at a voltage standing wave ratio (VSWR) detection apparatus with 1-bit analog-to-digital converter (ADC) functionality, comprising:
- receiving a forward coupled signal in a transmission line of an antenna system;
- receiving a reverse coupled signal in the transmission line of the antenna system;
- detecting the forward coupled signal and the reverse coupled signal;
- converting the forward detected signal and the reverse detected signal to an analog voltage signal mapped to a return loss value;
- converting by the 1-bit ADC the analog voltage signal into a digital pulse train;
- and
- outputting the digital pulse train to a digital interface of a processing device or unit.
A method implemented at a voltage standing wave ratio (VSWR) measure apparatus, comprising:
- receiving by a digital interface a digital pulse train output by a VSWR detection apparatus comprising a signal processing circuit with 1-bit analog-to-digital converter (ADC) functionality configured to receive a forward coupled signal in a transmission line of an antenna system, receive a reverse coupled signal in the transmission line of the antenna system, detect the forward coupled signal and the reverse coupled signal, convert the forward detected signal and the reverse detected signal to an analog voltage signal mapped to a return loss value, convert by the 1-bit ADC the analog voltage signal into a digital pulse train and output the digital pulse train to a digital interface of a processing device or unit;
- counting a total number of the digital pulse train in a predefined timing window;
- and
- performing, based on the total number of the digital pulse train, at least one of determining the VSWR, determining a state of the antenna system and triggering a standing wave condition alarm.
Dependencies are inferred from the claim text.