Unlock instant, AI-driven research and patent intelligence for your innovation.

Mixer circuit, service device and mixer service system

A technology of mixing circuits and business equipment, applied in the field of communication, can solve problems such as poor reliability and inability to return uplink signals

Active Publication Date: 2014-05-07
HUAWEI TECH CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The application provides a frequency mixing circuit, service equipment and a frequency mixing service system, which are used to solve the problem that the uplink signal of the original service existing in the frequency mixing scheme in the prior art cannot be returned to the RFIN port after being separated from the duplexer. Technical issues leading to poor reliability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mixer circuit, service device and mixer service system
  • Mixer circuit, service device and mixer service system
  • Mixer circuit, service device and mixer service system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a frequency mixing circuit, which can be applied in other frequency division networks besides the HFC network. Please refer to image 3 As shown, it is a schematic diagram of the frequency mixing circuit in this embodiment, and the frequency mixing circuit includes:

[0035] Splitter 10, splitter 10 has a main input port 101, branch input port 102 and main output port 103; Duplexer 20 includes a transmitting end, a receiving end and a common end, and the common end is connected to the branch input port of the splitter 10 102; wherein, the splitter 10 is configured to mix the downlink signal of the first service input from the main input port 101 and the downlink signal of the second service from the branch input port 102 to output from the main output port 103, and to output the The uplink signal of the first service input from the main output port 103 and the uplink signal of the second service are distributed to the main input port 101 and th...

Embodiment 2

[0050] An embodiment of this application also provides a service device, please refer to Figure 5 As shown, the service equipment includes: a radio frequency input port 40, which is used to receive the downlink signal of the first service and output the uplink signal of the first service; a frequency mixing circuit 50, which is used to combine the signal of the first service and the signal of the second service For transmission, the radio frequency output port 60 is used to output the downlink signal of the first service and the downlink signal of the second service, and input the uplink signal of the first service and the uplink signal of the second service.

[0051] Wherein, the mixing circuit 50 specifically includes: a splitter 10, the splitter 10 has a main input port 101, a branch input port 102 and a main output port 103; a duplexer 20 includes a transmitting end, a receiving end and a common end, and the common end Connected to the branch input port 102 of the splitte...

Embodiment 3

[0064] This embodiment also provides a mixing service system, please refer to Image 6 As shown, the system includes:

[0065] The first service server 601; used to generate the downlink signal of the first service and process the uplink signal of the first service; the second service server 602 is used to generate the downlink signal of the second service and process the uplink signal of the second service; frequency mixing The service device 603 is configured to mix and output the downlink signal of the first service and the downlink signal of the second service, and output the uplink signal of the first service and the uplink signal of the second service to the first service server 601 and the second service server 601 respectively. The second service server 602; the mixing service device 603 includes: a mixing circuit; a user terminal 604, which is used to generate the uplink signal of the first service and the uplink signal of the second service, and use the downlink sign...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The application provides a mixer circuit, a service device and a mixer service system. The mixer circuit comprises a brancher and a duplexer. The brancher is provided with a main input port, a branch input port, and a main output port. The duplexer comprises a transmitting terminal, a receiving terminal, and a common terminal. The common terminal is connected to the branch input port of the branch. The branch is used to mix a downlink signal of a first service input from the main input port and a downlink signal of a second service from the branch input port and then output the mixed signal from the main output port, and is used to distribute an uplink signal of the first service input from the main output port and an uplink signal of the second service respectively to the main input port and the branch input port to be output. The duplexer is used to achieve bidirectional communication of the downlink signal of the second service and the uplink signal of the second service. The downlink signal of the second service is coupled to the common terminal via the transmitting terminal, and the uplink signal of the second service is coupled to the receiving terminal from the common terminal.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a frequency mixing circuit, service equipment and a frequency mixing service system. Background technique [0002] In the current HFC (hybrid fiber coaxial; fiber-optic coaxial cable hybrid network) network, the centralized CMTS (cable modem termination system; cable modem termination system) service has been opened. For details, please refer to Figure 1a As shown, first, the uplink data enters the CMTS equipment located at the sub-head end from the terminal user's CM (Cable Modem; cable modem) through the fiber node, and then passes through the uplink PHY (physical layer) and MAC ( Media Access Control (media access control layer) is further sent to the main control board of the CMTS equipment for convergence, and the converged services are connected to the Internet entrance or core network after passing through the transport network; on the contrary, the dat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28
CPCH04N7/22H04L12/2801H04N21/42676H04N21/6118
Inventor 王宣强施世华
Owner HUAWEI TECH CO LTD