WLAN泰克测试方案.pdfWLAN泰克测试方案pdf,随着WLAN设备的市场的不断扩大，WLAN的

文件名称: WLAN泰克测试方案.pdf

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详细说明：WLAN泰克测试方案pdf,随着WLAN设备的市场的不断扩大，WLAN的测试也成为许多工程师关注的热点。24G频段和58G频段 √6G以下频段和60G频段传输速率提高到30M√传输速率不小于1Gb/s 兼容1101b/1gA√协议正在制定和完善之中传输速率提高到54M 2.4G频段兼容11b 8021m 80211g 2009 80211ac 2003年 11b2.4G频段,传输速率提高 80211ad 到5.5M和11M 802.11a/b 11a58G频段传输速率提高到54M 1999年 80211 IEEE推出的第一代WLAN 标准 1997 2.4G频段传输速率1M LAN标准不断完醬,可运营可管理性稳步増强 Tektronix Review of 802.11n: Basis for 802.lac Feature Mandatory Optional Transmission method OFDM Channel bandwidth 20 MHZ 40MH2 RESIze 64 128 Data subcarriers /pilots 52/4 108/6 Subcarrier spacing 312.5kHz OFDM symbol duration 4 s(800 ns guard interval) 3. 6 us(with 400 ns short guaro interval) Modulation types BPSK, QPSK, 16QAM, 64QAM Forward error correction Binary convolutional coding(BCC)I Low density parity check(LDPC Coding rates 1/2,2/3,3/4,5/6 MCS supported 0 to 7, 0 to 15 for access points 8to76, 16 to 76 for APs Spatial streams and MIMO 1, 2 for access points 3 or 4 streams direct mapping Tx beamforming, stbc Operating mode/PPDU Legacy/non-HT(802. 11a/b/g) Greenfield/ HT-Greenfield format Mixed /HT- mixed (802.11a/b/g/n) (802.11n only tektronix Changes and Enhancements for 802.11ac Wider channels NEW:. Higher-order modulation More spatial streams and antennas(up to 8) Multi- user mimo Feature Mandatory Optional Channel bandwidth 20 MHZ, 40 MHZ 80 MHZ 160MHz,80+80MHz FFT size 64,128,256 512 Data subcarriers/pilots 52/4,108/6,234/8 468/16 Modulation types BPSK, QPSK, 16QAM, 64QAM 256QAM MCS supported 0to 7 8 and 9 Spatial streams and MIMO 2 to 8 Tx beamforming, STBC Multi-user MIMO ( MU-MIMO Operating mode/PPDU format Very high throughput/VHT Data rates: 1.56 Gbps(80 MHz, 4 Tx, MCS9)"reasonable"case 6.93 Gbps(160 MHz, 8 TX, MCS9, short Gl) best case Tektronix 泰克亲民价格WF测试方案 80211 RF layer standard transmitter measurements ses wso Transmit power Transmit Power On/ Off Ramp Transmit Spectrum mask Spectrum Emission Mask RF Carrier suppression IQ Origin Ofset Center frequency leakage Transmit Spectral flatness Transmission spurious ransmit Center frequency tolerance 图圆 Symbol clock frequency tolerance Transmit Modulation Accuracy Error Vector Magnitude Transmitter Constellation error Error Vector Magnitude(evm) to measure the quality of the transmission Spectrum Emission Mask(seM)to determine the correctness of the transmission emission Additional measurements are needed to debug and find the root causes of failure( constellation Diagram, EVm vS time and iQ imbalance 7/29/2015 Tektronix 泰克亲民价格W-Fi测试方案 Standard: 802.11a/g/i/p Bandwidth: 20 MHz Guard interval: auto from sig Burst powera 48.00 dBm Peak-to-Average: 10.11 dB SIG Data Parity: Pass Burst index IQ Origin offset 3688dB Rate eserve Frequency Error: -25.58 kHz Common Pilot Error: 2.979% Length 239 Symbol clk Error:-11834 ppm Tail 0 EVM A Pilo Data RMS 2273dB-2545dB -22.56dB Peak -894dB -1607dB -894dB pksym/sub3/-2631/21 3/-26 AVg RMS 2273dB 1 of 20 bursts Max rMs 2273dB Packet format: ag Data Modulation: QPSK Guard Interval: 1/4 Symbols Avg Power STF 2 2270dB4779dBm LTF 2760dB 48,17dBm SIG 1 2497dB 48. 09 dBm Data 41 2273dB 48.00 dBm Tektronix 泰克亲民价格W-Fi测试方案 File vi Run Replay Markers Setup Tools Connectivity Wind 四|命兽 .v Frequency:525006 Hz RefLex2500 dIsConnection:■ Preset. Replay RStop A WLAN Channel Response 上上 x WLAN Symbol Table 白回‖1 D.00 dB Subcarriers (horizontal)vS. Symbols(vertical) o Position: 122-121-120-119-118-117-116-115-114-113-112-111-110-10 0.000dB 0025207EcF191D2P91149B56EE848 180425F3F263242581 AD 8D Dr6F 5.00dB 43E16325AFg730AEA9AE277 88A501D0B45622A5F018440 9A 0DEB01AB450312523E31B4F477D 62FAFCE8 16 FC C9 4FCAB7 8D o Position: 6217529A66Aa414BF0B8609074729 0.000 D1E811A55681FB6515815A1 B1 FE 8721 D5EC 8D A AB 60 A1 D3 30.0° 9 7C 01D189D6 1D8E A3 EA 5E6F4B9E 104040A3341cFA903F022B5A81551F Autoscale o Start::-122 Subc o Stop: 122 Subc J WLAN Constellation [x圆 WLAN Summary 上[回 Spectrum Emission Mask Pass Ref detection: +Peak orma C Standardi 802.lac Bandwidth:80N亠 -25, 00 dBm dB/dii Burst powera 32.75 dBm Peak-to-Average: 10.95 dB 100dB Burst index IQ Origin Offset:-6299 dB CLBL AEU CU DU Frequency Error: -1.20 kHz Common Pilot Error: 0.003 Symbol Clk Error:-0.220 ppm 12500dBm EVM Autoscale CF: 5. GHz o Span: 400.0 MHZ Pilots 44dB4028dB Ret: peak Row offset Start Freq Stop Freq RMS -20000MHz|-120000MH2/每 Peak 24.01dB 2955dB 52.77 dBm 2cL|-120000MHz8000MHh29 pksym/sub11/-12013/75 11/-120 3EL|-80000MHz41.000MHz-9 Tektronix 泰克亲民价格W-Fi测试方案 N Tek SignalVu-PC File View Run Replay Markers Setup Tools Connectivity Window Help B E BQE I. Frequency: 2.41200 GHz RefLev:25.00 dBm Connection Preset|● Replay,→Run 圆 WLAN Mag Error 口回 WLAN EVM 328% 374% o Start: 0 sym r Stop: 40 Sym -190 Autoscale o Start:26 Subc o Stop: 26 Subc y Start: o Sym o Stop: 405vm WLAN Power ys Time 口‖回‖ -32.89dBm de 卌H View Full Burst -132.89dBm Autoscale . -83. us o Scale: 204, 006 us Burst power: 48.002 dBm s-28.g% Burst Width: 184,000 u Autoscale b Start:-26 Subc e Stop: 26 Subc Acq BW: 20.00 MHz, Acq Length: 329. 440 us Mdo BW 1.000 GHz Mdo sample rate 156.25 MS/s Tektronix 泰克射频创新解决方案信号源的推岀实现完整端到端测试 DUT 。员 Spectrum nektrmmixTSG 4100a Analysis MDO3K/4K RSASK/6K 1000000000000GHz-30.00Bm RFAF unity Er Leg Modulation ○ Signal n 1o RSA306A TSG 4100A 上7 RF Power itakUrA Measurement 于E PSM5410 USB Power Meter 三二三三E PSM功率计及FCA频率计 RSA306的推出实现低成本测试延续MDo跨域分析的优势 125er 延续实时频谱分析仪的优势 Signal vu 高性能射频附件将整体方案完备 PsPL高频器件件 10 Tektronix

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