System and method for testing a data packet signal transceiver

Patent metadata

Field	Value
Publication number	US-10819616-B2
Application number	US-201916248453-A
Country	US
Kind code	B2
Filing date	Jan 15, 2019
Priority date	Jan 15, 2019
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

System and method for testing transmission and reception performance of a data packet signal transceiver device under test (DUT). Data packet signals transmitted by a tester with a tester transmit output power (TTOP) contain trigger frames that include data corresponding to a reported tester transmit power (RTTP) of the data packet signals, and a desired received signal strength (TRSS) of DUT data packet signals to be received by the tester. Based on received signal strength of the tester data packet signals reported by the DUT (DRSS), responsive DUT data packet signals having a DUT transmit output power of RTTP−DRSS+TRSS. Successive repetitions of such tester and DUT data packet signals for multiple combinations of values of the TTOP, RTTP and DRSS enable testing transmission and reception performance of the DUT, including determining minimum and maximum DUT transmission power levels, with minimal signal interactions between tester and DUT.

First claim

What is claimed is:

1. A method of testing transmission and reception performance of a data packet signal transceiver device under test (DUT), comprising:
transmitting, with a tester for a DUT, a tester data packet signal including a trigger frame and having a tester transmit output power (TTOP), wherein said trigger frame includes data corresponding to
a reported tester transmit power (RTTP) of said tester data packet signal, wherein said RTTP and said TTOP are unequal, and
a desired received signal strength (TRSS) of a DUT data packet signal to be received by said tester from said DUT;

receiving, with said tester from said DUT, a DUT data packet signal having a DUT transmit output power of RTTP−DRSS+TRSS, wherein DRSS is a received signal strength of said tester data packet signal reported by said DUT; and
repeating said transmitting and said receiving for a plurality of combinations of values of said TTOP, said RTTP and said DRSS.

2. The method of claim 1 , wherein said RTTP is greater than said TTOP.

3. The method of claim 1 , wherein said repeating of said transmitting and said receiving comprises successively increasing said TRSS at least until said received signal strength of the DUT data packet signal received by said tester from said DUT remains constant.

4. The method of claim 1 , wherein said repeating of said transmitting and said receiving comprises successively decreasing said TRSS at least until said received signal strength of said DUT data packet signal received by said tester from said DUT remains constant.

5. The method of claim 1 , wherein said repeating said transmitting with said tester, said receiving with said DUT, said transmitting with said DUT, and said receiving with said tester comprises successively decreasing said TRSS at least until said received signal strength of said DUT data packet signal received by said tester remains constant.

6. A method of testing transmission and reception performance of a data packet signal transceiver device under test (DUT), comprising:
receiving, with a DUT, a tester data packet signal including a trigger frame and having a tester transmit output power (TTOP), wherein said trigger frame includes data corresponding to
a reported tester transmit power (RTTP) of said tester data packet signal, wherein said RTTP and said TTOP are unequal, and
a desired received signal strength (TRSS) of a DUT data packet signal to be received by a tester from said DUT;

transmitting, with said DUT for said tester, a DUT data packet signal having a DUT transmit output power of RTTP−DRSS+TRSS, wherein DRSS is a received signal strength of said tester data packet signal reported by said DUT; and
repeating said receiving and said transmitting for a plurality of combinations of values of said TTOP, said RTTP and said DRSS.

7. The method of claim 6 , wherein said RTTP is greater than said TTOP.

8. The method of claim 6 , wherein said repeating of said receiving and said transmitting comprises successively increasing said TRSS at least until said received signal strength of the DUT data packet signal remains constant.

9. The method of claim 6 , wherein said repeating of said receiving and said transmitting comprises successively decreasing said TRSS at least until said received signal strength of said DUT data packet signal remains constant.

10. A method of testing transmission and reception performance of a data packet signal transceiver device under test (DUT), comprising:
transmitting, with a tester, a tester data packet signal including a trigger frame and having a tester transmit output power (TTOP), wherein said trigger frame includes data corresponding to
a reported tester transmit power (RTTP) of said tester data packet signal, wherein said RTTP and said TTOP are unequal, and
a desired received signal strength (TRSS) of a DUT data packet signal to be received by said tester from a DUT;

receiving, with said DUT, said tester data packet signal and in response thereto reporting a received signal strength (DRSS) of said tester data packet signal received by said DUT;
transmitting, with said DUT, a DUT data packet signal having a DUT transmit output power of RTTP−DRSS+TRSS;
receiving, with said tester, said DUT data packet signal; and
repeating said transmitting with said tester, said receiving with said DUT, said transmitting with said DUT, and said receiving with said tester for a plurality of combinations of values of said TTOP, said RTTP and said DRSS.

11. The method of claim 10 , wherein said RTTP is greater than said TTOP.

12. The method of claim 10 , wherein said repeating said transmitting with said tester, said receiving with said DUT, said transmitting with said DUT, and said receiving with said tester comprises successively increasing said TRSS at least until said received signal strength of the DUT data packet signal received by said tester remains constant.

Assignees

• Litepoint Corp

Inventors

• Olgaard Christian Volf
• Wang Ruizu
• Cui Kaiyun

Classifications

• H04B17/15

  Performance testing · CPC title

• H04B17/0085 Primary

  using test signal generators · CPC title

• H04L43/50 Primary

  Testing arrangements · CPC title

• H04B17/29

  Performance testing · CPC title

• G01R31/3183

  Generation of test inputs, e.g. test vectors, patterns or sequences · CPC title