8.13 Detection of Acquisition Indicator (AI)
25.1013GPPRelease 17TSUser Equipment (UE) radio transmission and reception (FDD)
The receiver characteristics of Acquisition Indicator (AI) are determined by the probability of false alarm Pfa and probability of correct detection Pd. Pfa is defined as a conditional probability of detection of AI signature given that a AI signature was not transmitted. Pd is defined as a conditional probability of correct detection of AI signature given that the AI signature is transmitted.
8.13.1 Minimum requirement
For the parameters specified in Table8.44 the Pfa and 1-Pd shall not the exceed the specified values in Table 8.45. Power of downlink channels other than AICH is as defined in Table C.3 of Annex C.
Table 8.44: Parameters for AI detection
|
Parameter |
Unit |
Test 1 |
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|
Phase reference |
– |
P-CPICH |
||||||||
|
|
dBm/3.84 MHz |
-60 |
||||||||
|
Number of other transmitted AI signatures on AICH |
– |
0 |
||||||||
|
|
dB |
-1 |
||||||||
|
AICH_Ec/Ior |
dB |
-22.0 |
||||||||
|
AICH Power Offset |
dB |
-12.0 |
||||||||
|
Propagation condition |
– |
Static |
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Note that AICH_Ec/Ior can not be set. Its value is calculated from other parameters and it is given for information only. (AICH_Ec/Ior = AICH Power Offset + CPICH_Ec/Ior)
Table 8.45: Test requirements for AI detection
|
Test Number |
Pfa |
1-Pd |
|
1 |
0.01 |
0.01 |