| 摘要 |
The embodiments of the present disclosure provide a WWAN test method and a test system related to the communication field, which is suitable for the product research and development stage and can derive a quantitative data relationship between a NFS test result and an OTA test result. The WWAN test method comprises: measuring a power value of noises, denoted by D(NFS), received by an antenna of a terminal to be tested in a NFS test manner; measuring a power attenuation value, denoted by D-sense, of a path from a WWAN module to the antenna of the terminal; obtaining an antenna efficiency value, denoted by AE, of the terminal; and obtaining a TIS value of an OTA test result by TIS=D(NFS)+D-sense−AE. The embodiments of the present disclosure can be used in the NFS test. |
| 主权项 |
1. A WWAN test method, comprising:
measuring a power value of noises, denoted by D(NFS), received by an antenna of a terminal to be tested in a Noise Floor System NFS test manner, wherein the terminal to be tested is located in an electromagnetic-shielding room, the noises are noises of respective components of the terminal to be tested itself; measuring a power attenuation value, denoted by D-sense, of a path from a WWAN module of the terminal to be tested to the antenna of the terminal to be tested; obtaining an antenna efficiency value, denoted by AE, of the terminal to be tested; and obtaining a Total Isotropic Sensitivity TIS value of an Over The Air OTA test result by: TIS=D(NFS)+D-sense−AE, wherein, measuring a power attenuation value of a path from a WWAN module to the antenna of the terminal comprising: sensing a conducted sensitivity power value, denoted by C1, of the WWAN module, by a spectrum analyzer connected to the antenna in wire, in a condition that the WWAN module of the terminal is connected to a load; sensing a contacted sensitivity power value, denoted by C2, of the WWAN module, by the spectrum analyzer, when the WWAN module transmits the power value of noises received by the antenna to a base station simulator connected to the WWAN module in wire; and obtaining the power attenuation value of the path from the WWAN module to the antenna by: |C1−C2|. |
