METHOD AND DEVICE FOR TESTING PERFORMANCE OF WIRELESS TERMINAL

• US 20150280844A1
• Filed: 12/03/2013
• Published: 10/01/2015
• Est. Priority Date: 12/03/2012
• Status: Active Grant

• Current Assignee: General Test Systems Inc.
• Original Assignee: General Test Systems Inc.
• Inventors: Yu, Wei, Qi, Yihong
• Granted Patent: US 9,614,627 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 17/0085 using test signal generators
• CPC Class Codes: H04B 17/12 of transmit antennas, e.g. of the amplitude or phase
• CPC Class Codes: H04B 17/14 of the whole transmission and reception path, e.g. self-test loop-back
• CPC Class Codes: H04B 17/24 with feedback of measurements to the transmitter
• CPC Class Codes: H04B 17/29 Performance testing
• CPC Class Codes: H04B 17/3912 Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0413 MIMO systems

Abstract

A method and a device for testing a performance of a wireless terminal and a computer readable storage medium are provided. The wireless terminal is placed in a first anechoic chamber and comprises m antennas, where m is a positive integer greater than 1. The method comprises steps of: S1, obtaining m pieces of antenna pattern information of the m antennas; S2, obtaining n first testing signals according to the m pieces of antenna pattern information, where n is a positive integer greater than 1; S3, feeding the n first testing signals to n testing antennas in a second anechoic chamber, and transmitting the n first testing signals to the wireless terminal by the n testing antennas; and S4, obtaining a piece of receiving information of the m antennas for the n first testing signals, and obtaining the performance of the wireless terminal according to the piece of receiving information.

Claims

1. A method for testing a performance of a wireless terminal, wherein the wireless terminal is placed in a first anechoic chamber and comprises m antennas, m is a positive integer greater than 1, the method comprises steps of:

S1, obtaining m pieces of antenna pattern information of the m antennas;

S2, obtaining n first testing signals according to the m pieces of antenna pattern information, where n is a positive integer greater than 1;

S3, feeding the n first testing signals to n testing antennas in the same or a second anechoic chamber, and transmitting the n first testing signals to the wireless terminal by the n testing antennas; and

S4, obtaining a piece of receiving information of the m antennas for the n first testing signals, and obtaining the performance of the wireless terminal according to the piece of receiving information.

2. The method according to claim 1, wherein step S2 comprises:

obtaining m second testing signals according to the m pieces of antenna pattern information, n pieces of preset antenna pattern information of a base station of a multi-input multi-output system, and a spatial channel propagation model of the multi-input multi-output system;

obtaining the n first testing signals according to the m second testing signals and a testing channel transfer matrix.

3. The method according to claim 2, wherein a relationship between the m second testing signals, the testing channel transfer matrix and the n first testing signals satisfies formula (1),

4. The method according to claim 1, wherein n is greater than or equal to m.

5. The method according to claim 1, wherein the n testing antennas and the wireless terminal remain still in step S3.

6. The method according to claim 1, wherein the piece of receiving information is a throughput.

7. The method according to claim 1, wherein the first anechoic chamber is the same as the second anechoic chamber.

8. The method according to claim 1, wherein a part of the n testing antennas are vertically polarized antennas and the other part of the n testing antennas are horizontally polarized antennas.

9. The method according to claim 3, wherein m is and n is 2, the relationship between the two second testing signals and the two first testing signals satisfies formula (2),

10. A device for testing a performance of a wireless terminal, wherein the wireless terminal is placed in a first anechoic chamber and comprises m antennas, m is a positive integer greater than 1, the device comprises:

a first obtaining module, configured to obtain m pieces of antenna pattern information of the m antennas;

a second obtaining module, configured to obtain n first testing signals according to the m pieces of antenna pattern information, where n is a positive integer greater than 1;

a feeding module, configured to feed the n first testing signals to n testing antennas in the same or a second anechoic chamber, and to send the n first testing signals to the wireless terminal by the n testing antennas; and

a fourth obtaining module, configured to obtain a piece of receiving information of the m antennas for the n first testing signals, and to obtain the performance of the wireless terminal according to the piece of receiving information.

11. The device according to claim 10, wherein the second obtaining module is configured to:

obtain m second testing signals according to the m pieces of antenna pattern information, n pieces of preset antenna pattern information of a base station of a multi-input multi-output system, and a spatial channel propagation model of the multi-input multi-output system;

obtain the n first testing signals according to the m second testing signals and a testing channel transfer matrix.

12. The device according to claim 11, wherein a relationship between the m second testing signals, the testing channel transfer matrix and the n first testing signals satisfies formula (1),

13. The device according to claim 10, wherein n is greater than or equal to m.

14. The device according to claim 10, wherein the n testing antennas and the wireless terminal remain still in the feeding module.

15. The device according to claim 10, wherein the piece of receiving information is a throughput.

16. The device according to claim 10, wherein the first anechoic chamber is the same as the second anechoic chamber.

17. The device according to claim 10, wherein a part of the n testing antennas are vertically polarized antennas and the other part of the n testing antennas are horizontally polarized antennas.

18. The device according to claim 12, wherein m is 2 and n is 2, the relationship between the two second testing signals and the two first testing signals satisfies formula (2),

19. A computer readable storage medium, comprising a computer program, wherein when the computer program is running on a computer, the computer program is configured for executing steps of:

S1, obtaining m pieces of antenna pattern information of m antennas, wherein a wireless terminal is placed in a first anechoic chamber and comprises the m antennas;

S2, obtaining n first testing signals according to the m pieces of antenna pattern information, where n is a positive integer greater than 1;

S3, feeding the n first testing signals to n testing antennas in the same or a second anechoic chamber, and transmitting the n first testing signals to the wireless terminal by the n testing antennas; and

S4, obtaining a piece of receiving information of the m antennas for the n first testing signals, and obtaining the performance of the wireless terminal according to the piece of receiving information.

20. The computer readable storage medium according to claim 19, wherein step S2 comprises:

obtaining m second testing signals according to the m pieces of antenna pattern information, n pieces of preset antenna pattern information of a base station of a multi-input multi-output system, and a spatial channel propagation model of the multi-input multi-output system;

obtaining the n first testing signals according to the m second testing signals and a testing channel transfer matrix.