US 11,146,342 B1Granted

Method and apparatus for device performance test

AssigneeBeijing University of Posts and Telecommunications

InventorsYong Li, Mugen Peng, Wenbo Wang

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Abstract

The embodiments of the present disclosure provide a method and apparatus for device performance test, which relate to the field of communication technology. The method includes receiving a signal sent by a base station simulator; simulating a channel used for transmitting the signal, and performing simulated transmission on the signal based on the simulated channel; and sending the signal after the simulated transmission to respective probe in the anechoic chamber through an output interface connected to the probe, so that the probe radiates the received signal in the anechoic chamber in which the device under test is placed, and performs performance test on the device under test, where each probe is connected to an output interface of the channel simulator. By the solution provided by the embodiments of the present disclosure, the efficiency of device performance test can be improved.

Claims16

Dependent claims

A method for device performance test, applied to a channel simulator, and comprising:

receiving a signal sent by a base station simulator;
simulating a channel used for transmitting the signal, and performing simulated transmission on the signal based on the simulated channel, wherein a spatial correlation of the simulated channel satisfies an equation:
ρ
t
⁡
(
u
1
,
u
2
)
=
1
M
⁢
∑
m
=
1
M
⁢
G
u
1
⁡
(
ϑ
m
)
⁢
G
u
2
⁡
(
ϑ
m
)
*
wherein, u1, u2 represents an identification of an antenna of a device under test, ρt (u1, u2) represents the spatial correlation of the simulated channel, M is the number of sub-paths in each sub-path cluster in a preset channel, ϑm represents an angle of arrival (AoA) of the mth sub-path, Gu1(ϑm) represents an antenna pattern of the u1th antenna of the device under test that is placed in an anechoic chamber, and Gu2(ϑm)* represents a conjugate of an antenna pattern of the u2th antenna of the device under test;
sending the signal after the simulated transmission to respective probe in the anechoic chamber through an output interface connected to the probe, so that the probe radiates the received signal in the anechoic chamber in which the device under test is placed, and performs performance test on the device under test, wherein each probe is connected to an output interface of the channel simulator.

39 more elements

A method for device performance test, applied to a channel simulator, and comprising:

receiving a signal sent by respective probe in an anechoic chamber through an output interface connected to the probe, wherein each probe is connected to an output interface of the channel simulator;
simulating a channel used for transmitting the signal, and performing simulated transmission on the signal based on the simulated channel, wherein a spatial correlation of the simulated channel satisfies an equation:
ρ
t
⁡
(
u
1
,
u
2
)
=
1
M
⁢
∑
m
=
1
M
⁢
G
u
1
⁡
(
ϑ
m
)
⁢
G
u
2
⁡
(
ϑ
m
)
*
wherein, u1, u2 represents an identification of an antenna of a device under test, ρt(u1, u2) represents the spatial correlation of the simulated channel, M is the number of sub-paths in each sub-path cluster in a preset channel, ϑm represents an angle of arrival (AoA) of the mth sub-path, Gu1(ϑm) represents an antenna pattern of the u1th antenna of the device under test that is placed in an anechoic chamber, and Gu2(ϑm)* represents a conjugate of an antenna pattern of the u2th antenna of the device under test;
sending the signal after the simulated transmission to a base station simulator, so that the base station simulator receives the signal and performs performance test on the device under test.

39 more elements

An apparatus for device performance test, comprising:

a memory, configured to store a computer program;
and
a processor, configured to execute the program stored in the memory, to perform a process of:
receiving a signal sent by a base station simulator;
simulating a channel used for transmitting the signal, and performing simulated transmission on the signal based on the simulated channel, wherein a spatial correlation of the simulated channel satisfies an equation:
ρ
t
⁡
(
u
1
,
u
2
)
=
1
M
⁢
∑
m
=
1
M
⁢
G
u
1
⁡
(
ϑ
m
)
⁢
G
u
2
⁡
(
ϑ
m
)
*
wherein, u1, u2 represents an identification of an antenna of a device under test, ρt(u1, u2) represents the spatial correlation of the simulated channel, M is the number of sub-paths in each sub-path cluster in a preset channel, ϑm represents an angle of arrival (AoA) of the mth sub-path, Gu1(ϑm) represents an antenna pattern of the u1th antenna of the device under test that is placed in an anechoic chamber, and Gu2(ϑm)* represents a conjugate of an antenna pattern of the u2th antenna of the device under test;
sending the signal after the simulated transmission to respective probe in the anechoic chamber through an output interface connected to the probe, so that the probe radiates the received signal in the anechoic chamber in which the device under test is placed, and performs performance test on the device under test, wherein each probe is connected to an output interface of the channel simulator.

42 more elements

Dependencies are inferred from the claim text.