SYSTEM AND METHOD FOR THE WIRELESS TERMINAL RECEIVING SENSITIVITY PERFORMANCE TEST BASED ON DATA MODE

• US 20110136457A1
• Filed: 12/31/2008
• Published: 06/09/2011
• Est. Priority Date: 05/15/2008
• Status: Active Grant

• Current Assignee: Eight Deer Ventures LLC (Markman Advisors)
• Original Assignee: ZTE Corporation
• Inventors: Yu, Zhong
• Granted Patent: US 8,358,992 B2
• Time in Patent Office: Days
• US Class Current: 455/226.1
• CPC Class Codes: H04B 17/10 of transmitters
• CPC Class Codes: H04B 17/21 for calibration; for correcting measurements
• CPC Class Codes: H04B 17/29 Performance testing
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04B 17/327 Received signal code power [RSCP]

Abstract

A method and system for the wireless terminal receiving sensitivity performance test based on a data mode are provided. The method comprises: building a human body model, in which the upper limb of the model holds the device under test at a predefined distance in front of the head of the model; taking the antenna of the device under test as the origin to build a spherical coordinate and selecting a testing point in the spherical coordinate; placing the model under the circumstance of a full-anechoic chamber; enabling the device under test to work in a data mode, and collecting the receiving power at the testing point in the spherical placement system using the testing antenna, so as to obtain the total power receiving sensitivity of the device under test. In this way, the performance influence on the mobile terminal from the human body coupling of the human being in a data mode can be actually reflected, the reality is high and the usage is easy.

Claims

1. A method for the wireless terminal receiving sensitivity performance test based on a data mode, comprising:

building a human body model, in which the upper limb of the model holds the device under test at a predefined distance in front of the head of the model;

taking the antenna of the device under test as the origin to build a spherical coordinate and selecting a testing point in the spherical coordinate;

placing the model under the circumstance of a full-anechoic chamber, enabling the device under test to work in a data mode, and collecting the receiving power at the testing point in the spherical placement system using the testing antenna, so as to obtain the total power receiving sensitivity of the device under test.

2. The method according to claim 1, wherein the process of building a human body model further comprises:

filling the model with artificial human tissue fluid.

3. The method according to claim 1, wherein the testing antenna is a dual-polarized antenna.

4. The method according to claim 3, wherein the receiving power collected at each testing point comprises a horizontal polarization component and a vertical polarization component.

5. The method according to claim 4, wherein the process of obtaining the power receiving sensitivity of the device under test after collecting the horizontal polarization component and the vertical polarization component comprises:

respectively obtaining the total receiving sensitivity at each testing point according to the following formula (1) and then normalizing the total receiving sensitivity at each testing point;

6. A system for the wireless terminal receiving sensitivity performance test based on a data mode, comprising:

a full-anechoic chamber, configured to provide a testing circumstance for the wireless terminal;

a human body model, the upper limb of which holds a device under test at a predefined distance in the front of the head of the human body model;

a spherical coordinate building and testing module, configured to take the antenna of the device under test as the origin to build a spherical coordinate and to select a testing point in the spherical coordinate;

a spherical placement system, configured to control the angle position of the wireless terminal with respect to the testing antenna in the spherical coordinate;

a testing antenna, configured to collect the receiving power of the wireless terminal at the testing point under the control of the spherical placement system when the wireless terminal is in a data mode; and

a processing unit, configured to obtain the power receiving sensitivity of the device under test according to the receiving power of the wireless terminal at the testing point when the wireless terminal is in a data mode.

7. The system according to claim 6, wherein the human body model is filled with artificial human tissue fluid.

8. The system according to claim 7, wherein the testing antenna is a dual-polarized antenna.

9. The method according to claim 8, wherein the receiving power collected at each testing point comprises a horizontal polarization component and a vertical polarization component.