Patent ID: 11929902
Assignee: INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for determining a programmable communication interface extension (PCIe) signal bandwidth, comprising:
obtaining, by pre-testing, an insertion loss of a standard PCIe signal on an analog transmission link;
determining an insertion loss of a to-be-tested transmission link;
according to a PCIe signal type of a PCIe signal to be transmitted by the to-be-tested transmission link and the insertion loss of the to-be-tested transmission link, determining a target analog transmission link for simulating the to-be-tested transmission link;
obtaining, by testing, a target frequency point at which energy spectrum density of an output signal, after being subjected to inverse Fourier transform, of the PCIe signal corresponding to the PCIe signal type passing the target analog transmission link reaches a preset proportion of an original signal of the PCIe signal type;
taking the target frequency point of the to-be-tested transmission link as a bandwidth of the PCIe signal of the to-be-tested transmission link;
wherein the preset proportion is determined according to a measurement error requirement of the to-be-tested transmission link.