LTE杂散及部分接收项测试(3)

2019-02-20 23:23

和测发射机杂散的步骤一样,这里不再赘余。

7. 注意事项

1).测试方法和组网虽然与发射机杂散一样,但是频率范围的选择是由差别的。例如,以LTE B3为例,与其共存的频段有E-UTRA Band 1, 3, 7, 8, 20, 33, 34, 38,对于共存的B1来说,选择的测试频率范围是FDL_low ~ FDL_high,即:2110MHz~2170MHz,在这个频率范围内,杂散小于-50dBm。 2).依照协议

NOTE 2: For measurement conditions at the edge of each frequency range, the lowest frequency of the measurement position in each frequency range should be set at the lowest boundary of the frequency range plus MBW/2. The highest frequency of the measurement position in each frequency range should be set at the highest boundary of the frequency range minus MBW/2. MBW denotes the measurement bandwidth defined for the protected band.

但GTR自动化工程并没有按照上述协议所说:测试的低频率位置是选在上表中的频带下边界基础上加MBW/2,测试的高频率位置是选在上表中的频带上边界基础上减MBW/2。而是直接按照1中描述的那样。其实,自动化测的范围更大。

三、 额外的杂散辐射(6.6.3.3)

1. 指标含义

UE在发射时很可能在那些额外场景下,产生对其他传输信道和系统的杂散信号。额外的杂散辐射就是体现在额外规定范围内的频段上,这种“额外的”主要体现在一个网络信号参数NS上。 2. 测试目的

为了保证UE不能在这些额外场景下的频段内产生对其他信道或是系统有太大的干扰。 3. 测试配置

协议定义的额外要求主要是如下几个NS值:NS_05;NS_07;NS_08;NS_09。测试时针对这些NS值来设置测试参数。

Table 6.6.3.3.4.1-1: Test Configuration Table (network signalled value “NS_05”)

Initial Conditions Test Environment as specified in TS 36.508[7] subclause 4.1 Test Frequencies as specified in TS36.508 [7] subclause 4.3.1 Low range, Mid range In case of Low range: - For 5MHz channel bandwidth: UL 1927.2MHz (N_UL = 18072), DL 2117.2MHz (N_DL = 72) and UL 1931.1MHz (N_UL = 18111) DL 2121.1 MHz (N_DL = 111) - - Test Channel Bandwidths as specified in TS 36.508 [7] subclause 4.3.1 Test Parameters for Channel Bandwidths Ch BW 5MHz 5MHz 10MHz 10MHz 10MHz 10MHz 10MHz 15MHz 15MHz 15MHz 15MHz 15MHz 20MHz 20MHz 20MHz 20MHz 20MHz Downlink Configuration Mod’n RB allocation FDD testing TDD QPSK QPSK QPSK QPSK QPSK QPSK 16QAM QPSK QPSK QPSK QPSK 16QAM QPSK QPSK QPSK QPSK 16QAM Uplink Configuration Mod’n RB allocation FDD 1 25 1 12 48 50 50 1 16 48 75 75 1 18 48 100 100 TDD N/A For 10MHz: UL 1934.7MHz (N_UL = 18147), DL 2124.7MHz (N_DL = 147) For 20MHz channel bandwidth: Not available 5MHz, 10MHz, 20MHz Normal N/A for Additional Spurious Emissions Note 1. The 1 RB allocation shall be tested at both RB #0 and RB #max. Note 2. The starting resource block of partial RB allocation shall be RB# 0 and RB# (max +1 - RB allocation) of the channel bandwidth. Note 3: Low range frequencies for 5MHz and 10MHz channel bandwidth in case of network signalled “NS_05” shall be reviewed after June 2012 because of PHS band operation change.

Table 6.6.3.3.4.1-2: Test Configuration Table (network signalled value \

Initial Conditions Test Environment (as specified in TS 36.508 [7] subclause 4.1) Test Frequencies (as specified in TS36.508 [7] subclause 4.3.1) Test Channel Bandwidths (as specified in TS 36.508 [7] subclause 4.3.1) Test Parameters for Channel Bandwidths Test Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz N/A for Additional Spurious Emissions testing. QPSK QPSK QPSK QPSK QPSK 16QAM QPSK QPSK 16QAM QPSK 16QAM QPSK QPSK QPSK QPSK 16QAM 1 8 6 20 12 36 (Note 1) 16 12 16 30 30 (Note 1) 6 2 50 12 50 (Note 1) Note 1: Applies only for UE-Categories 2-5 43 48 0 0 0 19 19 19 19 19 0 0 13 13 13 13 Ch BW Downlink Configuration Mod’n RB allocation Mod’n Uplink Configuration RB allocation RB_start NC Mid range 10MHz Table 6.6.3.3.4.1-3: Test Configuration Table (network signalled value “NS_08”)

Initial Conditions Test Environment as specified in TS 36.508[7] subclause 4.1 Test Frequencies as specified in TS36.508 [7] subclause 4.3.1 Test Channel Bandwidths as specified in TS 36.508 [7] subclause 4.3.1 Test Parameters for Channel Bandwidths Ch BW 5MHz 5MHz 5MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 10MHz 15MHz 15MHz 15MHz 15MHz 15MHz 15MHz 15MHz Downlink Configuration Mod’n RB allocation FDD testing TDD QPSK QPSK QPSK QPSK QPSK QPSK QPSK QPSK QPSK 16QAM QPSK QPSK QPSK QPSK QPSK QPSK 16QAM Uplink Configuration Mod’n RB allocation FDD 1 8 25 1 12 27 36 40 50 50 (Note 3) 1 16 27 36 40 75 75 (Note 3) Note 1: The 1 RB allocation shall be tested at both RB #0 and RB #max. Note 2: The starting resource block of partial RB allocation shall be RB#0 and RB# (max + 1 - RB allocation) of the channel bandwidth Note 3: Applies only for UE-Categories 2-5 TDD N/A 5MHz, 10MHz, 15MHz High range Normal N/A for Additional Spurious Emissions

Table 6.6.3.3.4.1-4: Test Configuration Table (network signalled value “NS_09\

Initial Conditions Test Environment as specified in TS 36.508[7] subclause 4.1 Test Frequencies as specified in TS36.508 [7] subclause 4.3.1 Test Channel Bandwidths as specified in TS 36.508 [7] subclause 4.3.1 Test Parameters for Channel Bandwidths Ch BW 5MHz 5MHz 5MHz 10MHz 10MHz 10MHz 10MHz 10MHz 15MHz 15MHz 15MHz 15MHz 15MHz 15MHz Downlink Configuration Mod’n RB allocation FDD testing TDD QPSK QPSK QPSK QPSK QPSK QPSK QPSK 16QAM QPSK QPSK QPSK QPSK QPSK 16QAM Uplink Configuration Mod’n RB allocation FDD 1 8 25 1 12 40 50 50 (Note 3) 1 16 40 54 75 75 (Note 3) Note 1: The 1 RB allocation shall be tested at both RB #0 and RB #max. Note 2: The starting resource block of partial RB allocation shall be RB#0 and RB# (max + 1 - RB allocation) of the channel bandwidth Note 3: Applies only for UE-Categories 2-5 TDD N/A 5MHz, 10MHz, 15MHz High range Normal N/A for Additional Spurious Emissions 从以上几个表中的要求可以看出,在NS_05;NS_07;NS_08;NS_09这几项时,分别对应于BAND1;BAND13;BAND19;BAND21。所以我们在测试额外杂散时也要注意在不同的NS值下只测试以上相对应的BAND即可。

4. 协议要求


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