Method and device for transmitting/receiving monitoring information and transfer system
A technology for monitoring information and signals, applied in the field of optical network communication, can solve the problem of large limitations in monitoring information transmission, achieve strong practical value, and improve the effect of monitoring bandwidth
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Embodiment 1
[0048] Such as Figure 6 The schematic diagram of the structure of the GMP mapping device is shown, and the GMP mapping device includes: a GMP mapping processing unit, a main control unit and an overhead processing unit.
[0049] Among them, the GMP mapping processing unit selects the appropriate Cn according to the low-order ODU signal and the high-order ODU signal clock, and loads the Cn low-order ODU signals evenly into the OTN with a capacity of Pm through a certain calculation method, and in the demapping process Reverse processing is realized in
[0050] The main control unit is used to control and coordinate the mapping and demapping processes processed by the above-mentioned GMP processing unit, and transfer the Cn value to the overhead processing unit, and control whether the overhead processing unit needs to fill GCC bytes;
[0051] During the mapping process, the overhead processing unit fills or processes fixed bytes or GCC bytes according to the instructions of t...
Embodiment 2
[0068] This embodiment provides a method for sending / receiving monitoring information. This method is completed based on GMP fixed stuffing bytes. In this embodiment, 32 ODU0s are loaded into an ODU3 container for transmission. The GMP method realizes the mapping and demapping of the time slot frame ODU3.ts from ODU0 to ODU3. The sending process of the monitoring information is equivalent to the GMP mapping process, and the receiving process of the monitoring information is equivalent to the GMP de-mapping process. Such as Figure 9 As shown, the mapping includes the following process:
[0069] In the first step, the GMP mapping processing unit selects Cn=15105 according to the low-order signal type ODU0 and the high-order signal type ODU3;
[0070] In the second step, the main control unit calculates whether each byte is filled or puts useful data according to Cn=15105 and Pm=15232, and the following calculation method can be adopted:
[0071] If the j-th (j=1, 2, ..., Pm)...
Embodiment 3
[0087] This embodiment provides a method for sending / receiving monitoring information, which is completed based on GMP fixed stuffing bytes. In this embodiment, 16 ODU1s are mapped to ODU3e2 containers for transmission. The sending process of monitoring information is equivalent to the GMP mapping process , the receiving process of monitoring information is equivalent to the GMP demapping process. Such as Figure 10 As shown, the mapping includes the following process:
[0088] The mapping process is as follows:
[0089] In the first step, the GMP mapping processing unit selects Cn=14636 according to the low-order signal type ODU1 and the high-order signal type ODU3e2;
[0090] Pm=15232 is determined according to the low-order signal type ODU1 and the high-order signal type ODU3e2.
[0091] In the second step, the main control unit coordinates the mapping processing unit according to the condition of uniform filling in embodiment 2, and loads ODU1 into ODU3e2;
[0092] The...
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