Pseudo-random sequence self transceiving test system in PTN simulation service and method thereof
A pseudo-random sequence and test system technology, applied in transmission systems, multi-frequency code systems, digital transmission systems, etc., can solve the problems of low precision and low efficiency of logic function debugging, and achieve high test efficiency, convenient maintenance, and error reduction. The effect of positioning accuracy
Active Publication Date: 2014-11-26
UTSTARCOM TELECOM CO LTD
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[0008] The purpose of the present invention is to solve the problem of low precision and low efficiency caused by the limitation of external interface chip and instrument on the debugging of FPGA internal logic function and the test of hanging table
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] Such as figure 1 As shown, it is a pseudo-random sequence (Pseudo Random Bit Sequence--PRBS) self-transmitting test system in the PTN simulation service, including a test module 1 concentrated in an FPGA, a PTN simulation service module 2 and a history alarm register module 3, said PTN emulation service module 2 is used for simulating E1 / T1 service, and wherein test module 1 also comprises test sequence generation module 11 (PRBS GEN) and service verification module 12 (PRBS CHK), and described history warning register module 3 is each road test A historical alarm register is set.
[0030]On the receiving side of the PTN simulation service module 2, the PRBS sequence generated by the test module 1 of the present invention is input as a signal source, and the E1 / T1 mode, framing and non-framing modes, PRBS generation and verification are selected throu...
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The invention discloses a pseudo-random sequence self transceiving test system in PTN simulation service and a method thereof. The pseudo-random sequence self transceiving test system comprises a test module, a PTN simulation service module and a history alarm register. The test comprises a test sequence generation module and a service verification module. The PTN simulation service module is used for simulating E1 / T1 service. The test sequence generation module generates a test signal and inputs the test signal into an input terminal of the PTN simulation service module. The PTN simulation service module is in external connection with a packet switching network, after the test signal goes through packet switching network service loopback, the test signal is inputted into the service verification module to carry out service verification through an output terminal of the PTN simulation service module, and a verification result is inputted into the history alarm register. According to the system and the method, there is no restriction of an external interface chip and an instrument, a test can be carried out only with a FPGA capable of normally working, there is no restriction of a test port number, at the most, testing 256 paths of service at the same time can be supported, and test efficiency is high.
Description
technical field [0001] The invention relates to the communication field, in particular to a simulation service verification test system and method in PTN (Packet Transport Network) products. Background technique [0002] PTN equipment is a fourth-generation Metro Ethernet access and transmission platform for ring network applications, which supports the smooth evolution from the existing SDH / SONET architecture to a packet-optimized transmission network, and carries high value-added value-added services. PTN equipment integrates the highly flexible metro Ethernet packet ring and access aggregation functions into a unified next-generation SDH / SONET platform, which can realize the transmission of packet data services such as metro Ethernet (or other data services) with high efficiency and converge. [0003] According to the status quo of the metropolitan area network of Chinese operators, the core layer is mainly aggregated large-grained traffic, and the transmission is mainly...
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IPC IPC(8): H04L12/26H04L12/70H04L27/26
Inventor 李亚峰赵书鹏吴敏源
Owner UTSTARCOM TELECOM CO LTD