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1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3 Spurious emissions | Common with 3.84 Mcps option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.1 Mandatory Requirements | The requirements of either subclause 6.2.6.3.1.1 or subclause 6.2.6.3.1.2 shall apply whatever the type of transmitter considered (single carrier or multi-carrier). It applies for all transmission modes foreseen by the manufacturer’s.
Either requirement applies at frequencies within the specified frequency ranges which are more than 4MHz under the first carrier frequency used or more than 4 MHz above the last carrier frequency used. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.1.0 Explanation of difference | In 3.84 Mcps option, the frequency offset from carrier frequency is greater than 12.5MHz, while in 1.28 Mcps option it is greater than 4 MHz.
In ITU specification, the frequency limit between out of band emissions and spurious emissions is defined as 250% of the necessary bandwidth. In 1.28 Mcps option the necessary bandwidth is 1.6MHz, so the frequency offset from carrier frequency is: |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.1.1 Spurious emissions (Category A) | Common with 3.84 Mcps option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.1.2 Spurious emissions (Category B) | The following requirements shall be met in cases where Category B limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [16], are applied. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.1.2.1 Minimum Requirement | The power of any spurious emission shall not exceed:
Table 6.8 BS Mandatory spurious emissions limits, Category B
Band
Maximum Level
Measurement Bandwidth
Note
9kHz – 150kHz
- 36 dBm
1 kHz
Note 1
150kHz – 30MHz
- 36 dBm
10 kHz
Note 1
30MHz – 1GHz
- 36 dBm
100 kHz
Note 1
1GHz
Fc1 – 19.2 MHz or Fl - 3.2 MHz
whichever is the higher
- 30 dBm
1 MHz
Note 1
Fc1 - 19.2 MHz or Fl - 3.2MHz
whichever is the higher
Fc1 - 16 MHz or Fl - 3.2 MHz
whichever is the higher
- 25 dBm
1 MHz
Note 2
Fc1 - 16 MHz or Fl - 3.2 MHz
whichever is the higher
Fc2 + 16 MHz or Fu + 3.2 MHz
whichever is the lower
- 15 dBm
1 MHz
Note 2
Fc2 + 16 MHz or Fu + 3.2 MHz
whichever is the lower
Fc2 + 19.2MHz or Fu + 3.2MHz
whichever is the lower
- 25 dBm
1 MHz
Note 2
Fc2 + 19.2 MHz or Fu + 3.2 MHz
whichever is the lower
12,5 GHz
- 30 dBm
1 MHz
Note 3
NOTE 1: Bandwidth as in ITU-R SM.329 [16], s4.1
NOTE 2: Specification in accordance with ITU-R SM.329 [16], s4.3 and Annex 7
NOTE 3: Bandwidth as in ITU-R SM.329 [16], s4.3 and Annex 7. Upper frequency as in ITU-R SM.329 [1], s2.5 table 1
Fc1: Center frequency of emission of the first carrier transmitted by the BS
Fc2: Center frequency of emission of the last carrier transmitted by the BS
Fl: Lower frequency of the band in which TDD operates
Fu: Upper frequency of the band in which TDD operates |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.2 Co-existence with GSM 900 | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.2.1 Operation in the same geographic area | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.2.1.1 Minimum requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.2.2 Co-located base stations | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.2.2.1 Minimum requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.3 Co-existence with DCS 1800 | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.3.1 Operation in the same geographic area | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.3.1.1 Minimum requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.3.2 Co-located base stations | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.3.2.1 Minimum requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.4 Co-existence with UTRA FDD | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.4.1 Operation in the same geographic area | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.4.1.1 Minimum requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.4.2 Co-located base stations | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.6.3.4.2.1 Minimum requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.7 Transmit intermodulation | The transmit intermodulation performance is a measure of the capability of the transmitter to inhibit the generation of signals in its non linear elements caused by presence of the wanted signal and an interfering signal reaching the transmitter via the antenna.
The transmit intermodulation level is the power of the intermodulation products when a CDMA modulated interference signal is injected into the antenna connector at a level of 30 dB lower than that of the subject signal. The frequency of the interference signal shall be 1.6 MHz, 3.2 MHz and 4.8 MHz offset from the subject signal. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.7.0 Explanation of difference | In 1.28 Mcps option, the necessary bandwidth is 1.6MHz. The frequency of interference signal is 1*NB,2*NB and 3*NB offset from the subject, that means 1.6 MHz, 3.2 MHz and 4.8 MHz.
In 3.84 Mcps option, the necessary bandwidth is 5 MHz. So the frequency of interference signal is 5 MHz, 10 MHz and 15 MHz offset from subject signal. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.7.1 Minimum requirement | The Transmit intermodulation level shall not exceed the out of band or the spurious emission requirements of section 6.2.6.2 and 6.2.6.3 in TR25.945. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8 Transmit modulation | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8.1 Transmit pulse shape filter | The transmit pulse-shaping filter is a root-raised cosine (RRC) with roll-off =0.22 in the frequency domain. The impulse response of the chip impulse filter RC0(t) is
Where the roll-off factor =0.22 and the chip duration: |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8.1.1 Explanation of difference | The chip rate for 1.28 Mcps TDD option is 1.28 Mcps, the chip duration is
.
While in 3.84 Mcps TDD option, the chip rate is 3.84 Mcps, the duration is
. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8.2 Modulation Accuracy | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8.2.1 Minimum Requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8.3 Peak Code Domain Error | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8.3.1 Minimum Requirement | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.2.8.3.2 Rationale | For 3.84 Mcps TDD and FDD, the minimum requirements for the error vector magnitude and peak code domain error ensures that
- the error vector magnitude does not degrade the performance
- the error vector magnitude leads only to low increase for the transmitted output power to remain the Eb/N0
The theoretical investigations have shown that the error vector magnitude is related to the spreading factor. Because the same spreading factors are used for 1.28 Mcps TDD and for 3.84 Mcps TDD, the same minimum requirement applies. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3 Receiver characteristics | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.1 General | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.2 Reference sensitivity level | The reference sensitivity is the minimum receiver input power measured at the antenna connector at which the FER/BER does not exceed the specific value indicated in section 6.3.2.1. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.2.1 Minimum Requirement | For the measurement channel specified in the Annex C, the reference sensitivity level and performance of the BS shall be as specified in table 6.9 below.
Table 6.9: BS reference sensitivity levels
Data rate
BS reference sensitivity level (dBm)
FER/BER
12.2 kbps
-110 dBm
BER shall not exceed 0.001 |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.2.2 Rationale | The reference sensitivity value of BS for 1.28 Mcps TDD is derived from the following formula. Assuming the noise figure(NF) of BS is 7dB, the noise floor is:
According to the simulation results for 12.2Kbps measurement channel, the BER=0.001 is achieved at Îor/Ioc = 1.2dB with an own code power of 1/5 of the whole transmit code power (-7dB). In simulation, assume Îor equal to Ior, we can get:
The sensitivity value without implementation is calculated as follows:
If the implementation margin is considered to be 1.5dB, the final sensitivity value is:
The reference sensitivity value of –110dBm is proposed to the BS specification for 1.28 Mcps TDD .
NOTE: In 1.28 Mcps TDD option, The noise figure of BS is assumed to be 7dB, it is based on that this parameter has been approved by CWTS yet and it is easier for implementation of BS. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.2.3 Simulation results | The simulation is done to 12.2kb/s data in static propagation condition for BS of 1.28 Mcps TDD. The service-mapping is specified in Annex C, and the simulation assumption is specified in section 9.
Figure 6.3
Table 6.10
Îor/Ioc
Pb
-0.49
5.09E-2
-0.03
2.12E-2
0.41
8.11E-3
0.82
2.90E-3
1.25
8.12E-4
1.68
1.23E-4
1.95
2.61E-5 |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.2.4 Maximum Frequency Deviation for Receiver Performance | The need for such a requirement is for further study. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.3 Dynamic range | Receiver dynamic range is the receiver ability to handle a rise of interference in the reception frequency channel. The receiver shall fulfil a specified BER requirement for a specified sensitivity degradation of the wanted signal in the presence of an interfering AWGN signal in the same reception frequency channel. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.3.1 Minimum requirement | The BER shall not exceed 0.001 for the parameters specified in Table 6.11.
Table 6.11: Dynamic Range
Parameter
Level
Unit
Data rate
12.2
kbps
Wanted signal
<REFSENS> + 30 dB
dBm
Interfering AWGN signal
-76dBm
dBm/1.28 MHz |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.3.2 Rationale | When wanted signal level is 30 dB above the reference sensitivity level, in order to keep the performance of BER0.001 the maximum interfering signal PI needs meet the following requirement:
It is also proposed to the BS conformance test, the section 8.4.3 this report.
NOTE: In 1.28 Mcps TDD option, The noise figure of BS is assumed to be 7dB, it is based on that this parameter has been approved by CWTS yet and it is easier for implementation of BS. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.4 Adjacent Channel Selectivity (ACS) | Adjacent channel selectivity (ACS) is a measure of the receiver ability to receive a wanted signal at its assigned channel frequency in the presence of an adjacent channel signal at a given frequency offset from the center frequency of the assigned channel.ACS is the ratio of the receiver filter attenuation on the assigned channel frequency to the receive filter attenuation on the adjacent channel(s). |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.4.1 Minimum Requirement | The BER shall not exceed 0.001 for the parameters specified in table 6.12.
Table 6.12: Adjacent channel selectivity
Parameter
Level
Unit
Data rate
12.2
kbps
Wanted signal
Reference sensitivity level + 6dB
dBm
Interfering signal
–55
dBm
Fuw (Modulated)
1.6
MHz |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.4.2 Rationale | Assuming the receiver filter ACS equals to 45 dBc, in order to keep the performance of BER, the interference signal level PI should meet the following requirement:
NOTE: In 1.28 Mcps TDD option, The noise figure of BS is assumed to be 7dB, it is based on that this parameter has been approved by CWTS yet and it is easier for implementation of BS. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.5 Blocking characteristics | The blocking characteristics is a measure of the receiver ability to receive a wanted signal at its assigned channel frequency in the presence of an unwanted interferer on frequencies other than those of the adjacent channels. The blocking performance shall apply at all frequencies as specified in the tables below, using a 1MHz step size. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.5.1 Minimum Requirements | For the 1.28 Mcps chip rate option, the requirement of Blocking for carrier spacing 1.6MHz is prescribed in the following tables.
Table 6.13: Blocking requirements for operating bands defined in 6.1.2(a)
Center Frequency of Interfering Signal
Interfering Signal Level
Wanted Signal Level
Minimum Offset of Interfering Signal
Type of Interfering Signal
1900 – 1920 MHz,
2010 – 2025 MHz
-40 dBm
<REFSENS> + 6 dB
3.2MHz
Narrow band CDMA signal with one code
1880 – 1900 MHz,
1990 – 2010 MHz,
2025 – 2045 MHz
-40 dBm
<REFSENS> + 6 dB
3.2MHz
Narrow band CDMA signal with one code
1920 – 1980 MHz
-40 dBm
<REFSENS> + 6 dB
3.2MHz
Narrow band CDMA signal with one code
1 – 1880 MHz,
1980 – 1990 MHz,
2045 – 12750 MHz
-15 dBm
<REFSENS> + 6 dB
CW carrier
Table6.14: Blocking requirements for operating bands defined in 6.1.2(b)
Center Frequency of Interfering Signal
Interfering Signal Level
Wanted Signal Level
Minimum Offset of Interfering Signal
Type of Interfering Signal
1850 – 1990 MHz
-40 dBm
<REFSENS> + 6 dB
3.2MHz
Narrow band CDMA signal with one code
1830 – 1850 MHz,
1990 – 2010 MHz
-40 dBm
<REFSENS> + 6 dB
3.2MHz
Narrow band CDMA signal with one code
1 – 1830 MHz,
2010 – 12750 MHz
-15 dBm
<REFSENS> + 6 dB
CW carrier
Table 6.15: Blocking requirements for operating bands defined in 6.1.2(c)
Center Frequency of Interfering Signal
Interfering Signal Level
Wanted Signal Level
Minimum Offset of Interfering Signal
Type of Interfering Signal
1910 – 1930 MHz
-40 dBm
<REFSENS> + 6 dB
3.2MHz
Narrow band CDMA signal with one code
1890 – 1910 MHz,
1930 – 1950 MHz
-40 dBm
<REFSENS> + 6 dB
3.2MHz
Narrow band CDMA signal with one code
1 – 1890 MHz,
1950 – 12750 MHz
-15 dBm
<REFSENS> + 6 dB
CW carrier |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.6 Intermodulation characteristics | Third and higher order mixing of the two interfering RF signals can produce an interfering signal in the band of the desired channel. Intermodulation response rejection is a measure of the capability of the receiver to receiver a wanted signal on its assigned channel frequency in the presence of two or more interfering signals which have a specific frequency relationship to the wanted signal.
The static reference performance as specified in clause 6.3.2.1 should be met when the following signals are coupled to BS antenna input.
A wanted signal at the assigned channel frequency, 6 dB above the static reference level.
Two interfering signals with the following parameters.
Table 6.16: Intermodulation requirement (1.28 Mcps chiprate)
Interfering Signal Level
Offset
Type of Interfering Signal
- 48 dBm
3.2 MHz
CW signal
- 48 dBm
6.4 MHz
Narrow band CDMA signal with one code |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.6.1 Rationale | Intermodulation characteristics mean the BS receiver needs to have a sufficient capability to reject the interfering signals. Same frequency bands is applied for 1.28 Mcps and 3.84 Mcps TDD, therefore 1.28 Mcps TDD should be resistant to the same level of interfering signals at other frequencies. The level –48dBm is proposed for interfering signals without brackets. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.7 Spurious emissions | The spurious emissions power is the power of emissions generated or amplified in a receiver that appear at the BS antenna connector. The requirements apply to all BS with separate RX and TX antenna port. The test shall be performed when both TX and RX are on with the TX port terminated.
For all BS with common RX and TX antenna port the transmitter spurious emission as specified in section 6.2.6.3 is valid. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.7.1 Minimum Requirement | The power of any spurious emission shall not exceed:
Table 6.17: Receiver spurious emission requirements
Band
Maximum level
Measurement Bandwidth
Note
9 kHz – 1 GHz
-57 dBm
100 kHz
1 GHz – 1.9 GHz and
1.98 GHz – 2.01 GHz
-47 dBm
1 MHz
With the exception of frequencies between 4MHz below the first carrier frequency and 4MHz above the last carrier frequency used by the BS.
1.9 GHz – 1.98 GHz and
2.01 GHz – 2.025 GHz
-83 dBm
1.28 MHz
With the exception of frequencies between 4MHz below the first carrier frequency and 4MHz above the last carrier frequency used by the BS.
2.025 GHz – 12.75 GHz
-47 dBm
1 MHz
With the exception of frequencies between 4MHz below the first carrier frequency and 4MHz above the last carrier frequency used by the BS. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.3.7.2 Rationale | Assuming the Minimum Couple Loss (MCL) is 30dB. For the victim receiver, the spurious emissions power generated by the BS receiver should not exceed the thermal noise. . The proposal for spurious emission power that located in the 1.9 GHz – 1.98 GHz and 2.01 GHz – 2.025 GHz band is as follows:
This leads to the same requirement as for 3.84 Mcps TDD. The different value is only due to the 1.28 MHz measurement bandwidth. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4 Performance requirement | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.1 General | Performance requirements for the BS are specified for the measurement channels defined in Annex C and the propagation conditions in Annex D. The requirements only apply to those measurement channels that are supported by the base station.
The requirements only apply to a base station with dual receiver antenna diversity. The required Îor/Ioc shall be applied separately at each antenna port.
Table 6.18: Summary of Base Station performance targets
Physical channel
Measurement channel
Static
Multi-path
Case 1
Multi-path
Case 2
Multi-path
Case 3
Performance metric
DCH
12.2 kbps
BLER<10-2
BLER<10-2
BLER<10-2
BLER<10-2
64 kbps
BLER<
10-1, 10-2
BLER<
10-1, 10-2
BLER<
10-1, 10-2
BLER<
10-1, 10-2, 10-3
144 kbps
BLER<
10-1, 10-2
BLER<
10-1, 10-2
BLER<
10-1, 10-2
BLER<
10-1, 10-2, 10-3
384 kbps
BLER<
10-1, 10-2
BLER<
10-1, 10-2
BLER<
10-1, 10-2
BLER<
10-1, 10-2, 10-3 |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.2 Demodulation in static propagation conditions | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.2.1 Demodulation of DCH | The performance requirement of DCH in static propagation conditions is determined by the maximum Block Error Rate (BLER ) allowed when the receiver input signal is at a specified Îor/Ioc limit. The BLER is calculated for each of the measurement channels supported by the base station. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.2.1.1 Minimum requirement | For the parameters specified in Table 6.19 the BLER should not exceed the piece-wise linear BLER curve specified in Table 6.20.
Table 6.19: Parameters in static propagation conditions
Parameters
Unit
Test 1
Test 2
Test 3
Test 4
Number of DPCHo
4
1
1
0
Spread factor of DPCHo
8
8
8
-
DB
-7
-7
-7
0
Ioc
DBm/1.28MHz
-91
Information Data Rate
Kbps
12.2
64
144
384
Table 6.20: Performance requirements in AWGN channel.
Test Number
[dB]
BLER Required Eb/N0
1
0.6
10-2
2
-0.9
10-1
-0.4
10-2
3
-0.3
10-1
-0.1
10-2
4
0.5
10-1
0.6
10-2 |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3 Demodulation of DCH in multipath fading conditions | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3.1 Multipath fading Case 1 | The performance requirement of DCH in multipath fading Case 1 is determined by the maximum Block Error Rate (BLER ) allowed when the receiver input signal is at a specified Îor/Ioc limit. The BLER is calculated for each of the measurement channels supported by the base station. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3.1.1 Minimum requirement | For the parameters specified in Table 6.21 the BLER should not exceed the piece-wise linear BLER curve specified in Table 6.22.
Table 6.21: Parameters in multipath Case 1 channel
Parameters
Unit
Test 1
Test 2
Test 3
Test 4
Number of DPCHo
4
1
1
0
Spread factor of DPCHo
8
8
8
-
DB
-7
-7
-7
0
Ioc
dBm/1.28 MHz
-91
Information Data Rate
Kbps
12.2
64
144
384
Table 6.22: Performance requirements in multipath Case 1 channel.
Test Number
[dB]
BLER
1
10.4
10-2
2
5.3
10-1
9.4
10-2
3
5.7
10-1
10.1
10-2
4
6.0
10-1
10.0
10-2 |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3.2 Multipath fading Case 2 | The performance requirement of DCH in multipath fading Case 2 is determined by the maximum Block Error Rate (BLER ) allowed when the receiver input signal is at a specified Îor/Ioc limit. The BLER is calculated for each of the measurement channels supported by the base station. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3.2.1 Minimum requirement | For the parameters specified in Table 6.4.6 the BLER should not exceed the piece-wise linear BLER curve specified in Table 6.4.7.
Table 6.23: Parameters in multipath Case 2 channel
Parameters
Unit
Test 1
Test 2
Test 3
Test 4
Number of DPCHo
4
1
1
0
Spread factor of DPCHo
8
8
8
-
DB
-7
-7
-7
0
Ioc
dBm/1.28 MHz
-91
Information Data Rate
Kbps
12.2
64
144
384
Table 6.24: Performance requirements in multipath Case 2 channel.
Test Number
[dB]
BLER
1
6.7
10-2
2
3.6
10-1
5.9
10-2
3
4.2
10-1
6.3
10-2
4
4.6
10-1
6.0
10-2 |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3.3 Multipath fading Case 3 | The performance requirement of DCH in multipath fading Case 3 is determined by the maximum Block Error Rate (BLER ) allowed when the receiver input signal is at a specified Îor/Ioc limit. The BLER is calculated for each of the measurement channels supported by the base station. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3.3.1 Minimum requirement | For the parameters specified in Table 6.25 the BLER should not exceed the piece-wise linear BLER curve specified in Table 6.26.
Table 6.25: Parameters in multipath Case 3 channel
Parameters
Unit
Test 1
Test 2
Test 3
Test 4
Number of DPCHo
4
1
1
0
Spread factor of DPCHo
8
8
8
-
DB
-7
-7
-7
0
Ioc
dBm/1.28 MHz
-91
Information Data Rate
Kbps
12.2
64
144
384
Table 6.26: Performance requirements in multipath Case 3 channel.
Test Number
[dB]
BLER
1
5.6
10-2
2
3.2
10-1
4.6
10-2
5.9
10-3
3
3.7
10-1
4.8
10-2
5.9
10-3
4
4.2
10-1
5.1
10-2
5.9
10-3 |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 6.4.3.4 Explanation difference | The different performance requirement is result from different propagation condition (Annex D), different service mapping (Annex C), different simulation assumption and different chip rate with 3.84 Mcps chip rate TDD. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7 Base Station EMC | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.1 Test conditions | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.1.1 General | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.1.2 Arrangements for establishing a communication link | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.1.3 Narrow band responses on receivers | For 1.28 Mcps chip rate TDD option, responses on receivers or duplex transceivers occurring during the test at discrete frequencies which are narrow band responses (spurious responses), are identified by the following method:
if during an immunity test the quantity being monitored goes outside the specified tolerances, it is necessary to establish whether the deviation is due to a narrow band response or to a wide band (EMC) phenomenon. Therefore, the test shall be repeated with the unwanted signal frequency increased, and then decreased by 3.2MHz;
- if the deviation disappears in either or both of the above 3.2 MHz offset cases, then the response is considered as a narrow band response;
- if the deviation does not disappear, this may be due to the fact that the offset has made the frequency of the unwanted signal correspond to the frequency of another narrow band response. Under these circumstances the procedure is repeated with the increase and decrease of the frequency of the unwanted signal set to 4MHz;
- if the deviation does not disappear with the increased and/or decreased frequency, the phenomenon is considered wide band and therefore an EMC problem and the equipment fails the test.
Narrow band responses are disregarded. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.2 Performance assessment | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.2.1 General | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.2.2 Ancillary equipment | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.3 Performance Criteria | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.3.1 Performance criteria A for continuous phenomena for BS | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.3.2 Performance criteria B for transient phenomena for BS | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.3.3 Performance criteria C for BS | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.3.4 Performance criteria A for continous phenomena for Ancillary equipment | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.3.5 Performance criteria B for transient phenomena for Ancillary equipment | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.3.6 Performance criteria C for Ancillary equipment | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.4 Applicability overview | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.4.1 Emission | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 7.4.2 Immunity | Common with 3.84 Mcps Chip rate TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8 BS conformance testing | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1 Frequency bands and channel arrangement | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.1 General | The information presented in this section is based on a chip rate of 1.28 Mcps. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.2 Frequency bands | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.3 TX–RX frequency separation | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.3.1 Description | No TX-RX frequency separation is required as Time Division Duplex (TDD) is employed. Each subframe of 1.28 Mcps TDD consists of 7 main timeslots (TS0 ~ TS6) where TS0 (before DL to UL switching point) are always allocated DL, the timeslots (at least the first one) before the switching point (vice versa) are allocated UL and the timeslots after the switching point (vice versa) are allocated DL. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.3.2 Explanation of difference | The frame structure for 3.84 Mcps TDD and 1.28 Mcps TDD is different. For 3.84 Mcps TDD, each TDMA frame consists of 15 timeslots where each timeslot can be allocated to either transmit or receive. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.4 Channel arrangement | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.4.1 Channel spacing | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.4.1.1 Background | The roll filter factor is would be 0.22, then we select the nominal bandwidth as 1.6MHz.
Considering the easy co-existence with Wide-band TDD mode, for its 3 times bandwidth would be 4.8, less than the nominal bandwidth of wide band UTRA TDD.
It is just nominal for 1.6MHz, and it is also flexible to adjust the channel raster step 200kHz to narrow as 1.4MHz for strict requirement situations if needed.
Considering the easy to implementation, for too narrow band of the bandwidth would be very difficult to implementation. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.4.1.2 Channel spacing | The channel spacing for 1.28 Mcps chip rate option is 1.6MHz. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.4.2 Channel raster | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.1.4.3 Channel number | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.2 General test conditions and declarations | |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.2.1 Base station classes | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.2.2 Output power and determination of power class | Common with 3.84 Mcps TDD option. |
1cc4b09fd057c9a5cf925fb9b5a5f4e7 | 25.945 | 8.2.3 Specified frequency range | Common with 3.84 Mcps TDD option. |
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