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Mixing circuit, service equipment and mixing service system

A technology of mixing circuit and service equipment, which is applied in the field of communication and can solve the problems of inability to return uplink signals and poor reliability

Active Publication Date: 2017-09-12
HUAWEI TECH CO LTD
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  • 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

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  • Mixing circuit, service equipment and mixing service system
  • Mixing circuit, service equipment and mixing service system
  • Mixing circuit, service equipment and mixing 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 Figure 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 sig...

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PUM

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Abstract

The application provides a frequency mixing circuit, service equipment and a frequency mixing service system. The frequency mixing circuit includes: a splitter, the splitter has a main input port, a branch input port and a main output port; a duplexer, the duplexer includes a transmitter end, a receiving end and a common end, the common end is connected to the branch input port of the splitter; wherein, the splitter is used to perform the downlink signal of the first service input from the main input port and the downlink signal of the second service from the branch input port After mixing, it is output from the main output port, and is used to distribute the uplink signal of the first service and the uplink signal of the second service input from the main output port to the main input port and branch input port respectively; the duplexer is used to realize the second The two-way communication of the downlink signal of the service and the uplink signal of the second service, the downlink signal of the second service is coupled to the common terminal through the transmitting end; the uplink signal of the second service is coupled from the common end to the receiving end.

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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28
CPCH04N7/22H04L12/2801H04N21/42676H04N21/6118
Inventor 王宣强施世华
Owner HUAWEI TECH CO LTD