CN-224218397-U - System for improving communication quality

CN224218397UCN 224218397 UCN224218397 UCN 224218397UCN-224218397-U

Abstract

The utility model discloses a signal transmission system capable of improving communication quality, which comprises a transmitting end signal processing unit, at least one receiving end signal processing unit and at least one transmission channel connected with the two signal processing units, wherein each receiving end signal processing unit analyzes received signals and forms transmission channel information signals of each transmission channel, and then the transmission channel information signals of each transmission channel are fed back to each transmitting end signal processing unit, so that the transmitting end signal processing unit adjusts the characteristics of subsequent transmission signals and accordingly improves or maintains the signal quality of each transmission channel.

Inventors

CHEN ZHIXIAO

Assignees

陈致晓

Dates

Publication Date: 20260508
Application Date: 20250523

Claims (12)

1. A system for improving communication quality is characterized by comprising a transmitting end signal processing unit, at least one transmission channel connecting two signal processing units and at least one receiving end signal processing unit, wherein the transmitting end signal processing unit receives a target transmission signal from a transmitting end upper communication layer and converts the target transmission signal into a corresponding physical medium signal which can be transmitted in each transmission channel connecting two signal processing units, each transmission channel connecting two signal processing units transmits each physical medium signal to each receiving end signal processing unit, each receiving end signal processing unit obtains the target transmission signal and a transmission channel information signal of each transmission channel according to each physical medium signal, each receiving end signal processing unit transmits the target transmission signal to the receiving end upper communication layer to achieve the purpose of transmitting the target transmission signal, and each receiving end signal processing unit further transmits the transmission channel information signal of each transmission channel to the transmitting end signal processing unit in a feedback mode.
2. The system of claim 1, wherein the two signal processing units are further connected to each other via a transmission channel connecting the two signal processing units to each other, wherein the system comprises two signal processing units, at least one transmission channel connecting the two signal processing units to each other, wherein each of the signal processing units comprises a transmitting-end signal processing unit and a receiving-end signal processing unit, each of the transmitting-end signal processing units receives a target transmission signal from an upper communication layer and converts it into a physical medium signal of each of the transmission channels, the signal is transmitted via each of the transmission channels connecting the two signal processing units to the receiving-end signal processing unit of the other signal processing unit, wherein each of the receiving-end signal processing units transmits the received target transmission signal to the upper communication layer of the signal processing unit to complete the transmission of the target transmission signal, each of the receiving-end signal processing units converts a transmission channel information signal of each of the transmission channel from each of the signal processing units to the other signal processing unit, each of the signal processing units is further transmitted via each of the transmission channels from the other signal processing units to the other signal processing units from the transmission channel of the other, wherein each of the signal processing units from the receiving-end signal processing units is further transmitted via the transmission channel of the signal processing units to the signal processing units from the other to the signal processing units to the upper communication layer of the signal processing units to the signal processing units, and each transmitting end signal processing unit shunts a transmission channel information signal of each transmission channel which is transmitted to the signal processing unit by the other signal processing unit together with a target transmission signal into a physical medium signal of each transmission channel and transmits the physical medium signal to the receiving end signal processing unit of the other signal processing unit through the transmission channel which is connected with the two signal processing units.
3. The system of claim 1, wherein each of the transmission channels connecting the two signal processing units is an optical transmission channel, the system comprises a transmitting-side signal processing unit, at least one optical transmission channel connecting the two signal processing units, and at least one receiving-side signal processing unit, wherein the transmitting-side signal processing unit further comprises a signal output and control circuit, at least one optical signal driving and modulating circuit, and at least one electrical signal-to-optical signal converting unit, wherein the signal output and control circuit is configured to receive a target transmission signal from an upper network layer of the transmitting-side signal processing unit and an analog signal from each of the transmission channel information signals from the transmitting-side signal processing unit and convert the target transmission signal into an analog signal from each of the optical signal driving and modulating circuits that is output to each of the transmission channels, wherein each of the optical signal driving and modulating circuits of each of the transmission channels is configured to convert the analog signal from each of the transmission channels into a light source driving and modulating signals that are output to each of the electrical signal converting units, wherein each of the optical signal driving and modulating circuits of each of the transmission channels is configured to convert each of the optical signal driving and modulating circuits that is output to each of the optical signal driving and modulating circuits that is configured to convert each of the optical signal driving and each of the transmission channel from each of the transmission channel, the optical signal transmitting and receiving device comprises at least one optical signal transmitting and receiving unit, at least one transimpedance amplifier and a signal input and control circuit, wherein each optical signal transmitting and receiving unit is used for converting an optical signal of each transmission channel into an analog current signal of each transmission channel, each transimpedance amplifier of each transmission channel is used for converting the analog current signal of each optical signal transmitting and receiving unit into an analog voltage signal of each transmission channel and transmitting the analog voltage signal to the signal input and control circuit, each signal input and control circuit transmits each target transmission signal to a higher-level communication layer on one hand to achieve the aim of transmitting each target transmission signal, each signal input and control circuit forms a transmission channel information signal of each transmission channel according to the acquired transmission channel information, and the signal output and control circuit of each transmission channel is used for enabling the signal output and control circuit to adjust a driving circuit of an analog electric signal which is subsequently output to each transmission channel according to the transmission channel information signal of each transmission channel.
4. The system of claim 3, wherein the system is further capable of generating optical signals by external modulation, wherein the electrical signal-to-optical signal conversion unit of each of the transmission channels of the transmitter signal processing unit further comprises a light source for receiving the light source driving signal from the optical signal driving and modulating circuit to generate continuous light waves, and the electrical signal-to-optical signal conversion unit of each of the transmission channels of the transmitter signal processing unit further comprises an external optical signal modulator for receiving the light source modulating signal from the optical signal driving and modulating circuit to modulate the signal of each of the transmission channels continuously with the light waves to generate the optical signal of each of the transmission channels.
5. A system according to claim 3, wherein the optical signals of at least two transmission channels share the same optical transmission channel connecting the two signal processing units.
6. The system of claim 5, wherein the optical signals generated by the optical signal-to-optical signal conversion units sharing the optical transmission channel of each of the two signal processing units have different wavelengths or polarization characteristics, and wherein each of the optical transmission channels connecting the two signal processing units as a common optical transmission channel has at least one optical combiner at one end of the transmitting-side signal processing unit, the optical combiner collecting the optical signals of different wavelengths or polarization characteristics of each of the optical transmission channels sharing the same optical transmission channel connecting the two signal processing units into the optical transmission channel connecting the two signal processing units as a common optical transmission channel.
7. The system of claim 5, wherein the light source of at least two electrical signal-to-optical signal units sharing the same optical transmission channel connecting two signal processing units receives light source driving signals from the optical signal driving and modulating circuits of the corresponding transmission channel to generate continuous light waves of the corresponding transmission channel, wherein each continuous light wave has different wavelength or polarization characteristics, the transmitting end signal processing unit further comprises at least one common optical transmission channel and at least one optical combiner, each optical combiner gathers the continuous light waves of different wavelength or polarization characteristics of each transmission channel sharing the same optical transmission channel connecting two signal processing units into each common optical transmission channel, each continuous light wave of the transmission channel sequentially passes through an external optical signal modulator of the corresponding transmission channel on the common optical transmission channel, each external optical signal modulator of the corresponding transmission channel receives light source modulating signals of the optical signal driving and modulating circuits of the corresponding transmission channel, and generates light waves of the same optical signal corresponding transmission channel only for the corresponding transmission channel, and each optical signal processing unit sharing the common optical transmission channel enters the common optical transmission channel.
8. The system of claim 5, wherein the signal processing unit at the transmitting end has at least one multi-channel light source, each of the multi-channel light sources receives a light source driving signal from each of the light signal driving and modulating circuits to generate at least two continuous light waves of each of the transmission channels having different wavelengths or polarization characteristics, the continuous light waves of each of the transmission channels generated by the same multi-channel light source sequentially pass through a designated channel external light signal modulator of each of the corresponding transmission channels in the same common light transmission channel, each of the designated channel external light signal modulators receives a light source modulating signal from the light signal driving and modulating circuit of the corresponding transmission channel and modulates only the continuous light waves of the corresponding transmission channel to generate the light signal of the corresponding transmission channel, and the light signal of each of the transmission channels sharing the common light transmission channel enters the light transmission channel of the same connecting two signal processing units.
9. The system of claim 5, wherein each of the optical transmission channels connecting the two signal processing units as a common optical transmission channel has at least one optical splitter at one end of the signal processing unit at the receiving end, and each of the optical splitters splits an optical signal having a different wavelength or polarization characteristic of each of the optical transmission channels sharing the same optical transmission channel connecting the two signal processing units and transmits the split optical signal to each of the optical signal to electrical signal converting units of the corresponding transmission channel.
10. The system of claim 5, wherein the optical signal of each of the transmission channels sharing the same optical transmission channel connecting the two signal processing units enters a common optical transmission channel of the receiving-end signal processing unit, the optical signal of each of the transmission channels sequentially passes through the assigned channel light detectors corresponding to each of the transmission channels in the common optical transmission channel, and the assigned channel light detectors of each of the transmission channels only perform absorption detection on the optical signal of the corresponding transmission channel, and thus generate an analog current signal of the corresponding transmission channel, and transmit the analog current signal to each of the transimpedance amplifiers of the corresponding transmission channel.
11. The system of claim 3, further comprising two signal processing units, wherein the two signal processing units are connected to each other by at least one optical transmission channel, wherein the system comprises two signal processing units, wherein the two signal processing units each comprise a signal output and control circuit, at least one optical signal driving and modulating circuit, at least one electrical signal to optical signal converting unit, at least one optical signal to electrical signal converting unit, at least one transimpedance amplifier, and a signal input and control circuit, each of the receiving end signal processing units transmits the received target transmission signal to an upper communication layer of the signal processing unit to complete transmission of the target transmission signal, each of the receiving end signal processing units transmits the information signal of each of the transmission channels transmitted by the signal processing unit to the other signal processing unit to each of the transmission channels of the signal processing unit by the other signal processing unit, each of the transmission channels transmitted by the other signal processing unit to the signal processing unit by the other signal processing unit is further connected to an electrical signal output and modulating circuit of each of the signal processing unit from the signal output and control circuit to the signal processing unit by the same signal processing unit, each of the signal processing unit is further modulated to the signal processing unit from the signal output layer of the signal processing unit to the signal processing unit, the signal output and control circuit of each signal processing unit shunts the transmission channel information signal of each transmission channel which is transmitted by the other signal processing unit to the signal processing unit together with the target transmission signal and loads the transmission channel information signal of each transmission channel which is transmitted to the optical signal driving and modulating circuit of each transmission channel to the other signal processing unit for transmission.
12. The system of claim 11, wherein at least one optical transmission channel connecting two signal processing units is provided to enable the two signal processing units to mutually transmit signals through the optical transmission channel connecting the two signal processing units, wherein the two signal processing units respectively have at least one optical transmission channel transmitting signals through the optical transmission channel connecting the two signal processing units, the optical transmission channel connecting the two signal processing units is a common optical transmission channel of each transmission channel, the optical signals generated by the optical signal conversion signal unit of each transmission channel of all signal processing units transmitting signals through the optical transmission channel connecting the two signal processing units as a common optical transmission channel have different wavelengths or polarization characteristics, the optical transmission channel connecting the two signal processing units as a common optical transmission channel has an optical plug multiplexer at two ends connected with the two signal processing units respectively, and each optical plug multiplexer enables the optical signal of each transmission channel sharing the two signal processing units to enter the optical transmission channel of the connecting the two signal processing units, and enables the optical signal of each signal transmission channel sharing the two signal processing units to enter the optical transmission channel of the connecting the two signal processing units to transmit signals from the optical transmission channel sharing the two signal processing units.

Description

System for improving communication quality Technical Field The present utility model relates to a communication technology, and more particularly, to a system capable of improving the communication quality of a transmission channel. Background When one signal processing unit transmits signals to another signal processing unit, the aging, damage or high working environment temperature of each communication element may cause the transmission signal characteristics to change, thereby affecting the communication quality. In addition, the nonlinear characteristics of each communication element and the transmission channel will deform and distort the signal, thereby affecting the communication quality. The above-mentioned two factors of degradation in communication quality are not actually affecting communication quality in low bandwidth communication, but are gradually apparent in high bandwidth communication. The communication bandwidth of the optical communication system is higher than that of other communication systems, such as radio wave communication or wire communication systems. In addition, the light source in the optical communication system is a nonlinear element. Furthermore, aging, damage, or excessive temperature of the working environment may undesirably change the characteristics of the light source, thereby affecting the quality of the optical signal. Such degradation of the light source characteristics may make it difficult for the optical signal driving and modulating circuit Optical Signal Modulation Circuit to properly modulate the optical signal, resulting in increased optical signal noise or bit errors. Therefore, the optical communication system with high bandwidth needs to solve the degradation problem of communication quality compared with other communication systems. Accordingly, there is a related art in an optical communication system that attempts to solve the above-mentioned problems. In optical communication systems, degradation of the quality of the light source is often difficult to predict. In order to ensure the quality of optical signal transmission, it is necessary to monitor the quality of optical signal in real time during the transmission of signal in the optical communication system. Also, one of the main characteristics of deterioration of the light source quality is an abnormal change in the average light power (Average Optical Power). Therefore, the prior art monitors the average optical power during the signal transmission process, and adjusts the optical signal driving and modulating circuit according to the real-time average optical power value, so as to maintain a certain optical signal quality. A schematic diagram of this prior art is shown in fig. 1. Fig. 1 is a schematic diagram of a system for improving optical communication quality in the prior art. The system 2 has a transmitting-side signal processing unit 10, an optical transmission channel 20 connecting the two signal processing units, and a receiving-side signal processing unit 30, wherein in order to monitor the average optical power of the light source 11, the optical communication system 2 is provided with a light detector 44 near the light source 11 of the transmitting-side signal processing unit 10 to capture a part of the optical power of the optical signal LS, a transimpedance amplifier 45 is disposed near the light detector 44 to convert the analog current signal ES5 output by the light detector 44 into an analog voltage signal ES6, and the signal output and control circuit 13 of the transmitting-side signal processing unit 10 receives the voltage signal ES6. When the analog voltage signal ES6 becomes smaller, the transmitting-side signal processing unit 10 determines that the average optical power of the light source 11 becomes smaller, so that the analog electric signal ES1 output to the optical signal driving and modulating circuit 44 is increased. When the analog voltage signal ES6 becomes larger, the transmitting-side signal processing unit 10 determines that the average optical power of the light source 11 becomes larger, so that the analog electric signal ES1 output to the optical signal driving and modulating circuit 44 is reduced. Thus, the system maintains the average light power of the light source 11 in order to maintain the communication quality of the system. However, the above prior art has the following drawbacks: Firstly, a light detector and a transimpedance amplifier are additionally arranged beside a light source, so that the packaging complexity of each optical element in a signal processing unit at a transmitting end is increased, and the material cost and the production cost are increased. And secondly, an additional element is arranged beside the light source, so that the combined volume of all optical elements in the signal processing unit at the transmitting end is increased, and the requirements of applications such as a data center and the like for high-density miniatu