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WiMAX/802.16

WiMAX(IEEE 802.16-2004)是一種RF技術,它提供了採用點對點或點對多點結構的寬頻無線固網系統。這些WiMAX連接解決方案會依不同的應用,提供不同的效能水準。

載波級 - 使用取得執照的頻譜。典型的應用是以回程線路(backhaul),將行動電話基地台連接到網際網路的骨幹網路。這些應用需要保證的效能和可靠度。

商業級 - 通常使用取得執照的頻譜,但也會使用未取得執照的頻譜。典型的應用是以回程線路,將Wi-Fi (802.11a/b/g) 熱點或小型企業連接到網際網路的骨幹網路。藉由降低存取成本及提高在各地安裝熱點的機率,來加強Wi-Fi的功能。

消費者等級 - 通常在未取得執照的頻譜內建置。典型的應用是無線數位用戶迴路(DSL),適合住家或低階/不重要的商業應用。

IEEE 802.16-2004涵蓋了各種實體(PHY)層。目前大多數的WiMAX實作都會使用256 OFDM,頻寬最高達20 MHz,頻率從2到6 GHz。

是德自 2004 年 9 月起正式成為 WiMAX 論壇的會員。以下為我們 WiMAX/802.16-2004 設計與測試工具的摘要:

ADS先進設計系統
ADS軟體具備了建立OFDM模擬模型和特殊的WiMAX信號的彈性。當搭配E4438C ESG信號產生器和89601A向量信號分析軟體使用時,即可運用虛擬原型設計功能。是德的Ptolemy模擬器提供了FFT和IFFT用的元件。 ADS先進設計系統

用於 802.16-2004 (WiMAX) 的 N7613A
用於 802.16-2004 的 Signal Studio 提供每一配置的 WiMAX波形,可讓您設定專屬的信號參數,以完整模擬您的 WiMAX 元件與接收器。下載波形至 E4438C ESG 向量信號產生器播放。 用於 802.16-2004 (WiMAX) 的 N7613A Signal Studio

E4438C ESG向量信號產生器,最高到6 GHz
E4438C ESG 結合了傑出的 RF 效能及精密的基頻產生,以提供基頻上的校驗測試信號、IF 及達 6 GHz 的 RF 頻率。用於 802.16-2004 (WiMAX) 軟體的ESG 與 N7613A Signal Studio 共同運作,並具有易於配置含您用於 WiMAX RF 信號建立所需效能的信號產生器之模組架構。它可以用作多用途的干擾源,或發射器脈衝產生器的本地振盪器。 E4438C ESG向量信號產生器

89600 系列向量信號分析軟體 1
89600 系列向量信號分析 (VSA) 軟體提供含B7S選項的全面性 802.16 (WiMAX) 模組分析。利用時間、頻率與模組分析工具的擴充設定來評估並疑難排解您的 WiMAX信號。 具 B7S 選項的 89600系列 VSA 軟體

PSA 系列頻譜分析儀,3 Hz 至 26.5 GHzPSA
量測並監控複合式 WiMAX 信號。可提供頻寬高達 80 MHz 的頻譜量測。主要功能包括使用者定義的極線,以簡化頻譜雜訊波罩量測。可與 89600 系列向量信號分析軟體一起使用,以分析頻道內的信號。 PSA 系列頻譜分析儀

ESA-E系列頻譜分析儀,100 Hz到26 GHz
ESA-E系列可以量測及監控頻寬高達10 MHz的複雜WiMAX信號。重要的功能包括使用者可定義的限制線,其可簡化頻譜放射遮罩的量測。它可搭配89600系列向量信號分析軟體使用,以進行頻道內信號分析。

E8362B PNA系列向量網路分析儀,10 MHz到20 GHz
E8362B PNA針對嚴苛的WiMAX元件測試需求,提供了最佳的速度與精確度組合。重要的功能包括快速掃描、寬廣的動態範圍、低軌跡雜訊與彈性的連接能力。 E8362B PNA網路分析儀

P系列功率錶
新的 P 系列功率電錶提供用於研發與製造的快速、準確和可重複性的功率量測,所提供的頻率量測範圍高達 40 GHz ,能以 30 MHz 的 100 Msa/s 視訊頻寬持續取樣。 P 系列功率電錶

E5052A 信號源分析儀,10 MHz 至 7 GHz
E5052A 為可提供一套完善量測功能的單機儀器,以評估像是示波器、RDIC 與 LO 電路的各種 RF 及微波信號源。功能包括相位雜訊、頻率/功率/相位暫態、頻率、功率及其他方面的量測。 E5052A信號源分析儀

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以下的測試工具是根據WiMAX建置而建議的,該建置採用256 OFDM、最高20 MHz的頻寬、以及低至6 GHz的頻率。
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RF測試 89601A VSA軟體 1 PSA/ESA-E系列頻譜分析儀 E4438C ESG信號產生器 EPM-P系列功率錶
發射器測試        
輸出功率     Black Checkmark     Black Checkmark (Footnote 2)
功率的上升/下降   Black Checkmark   Black Checkmark     Black Checkmark
頻譜遮罩   Black Checkmark   Black Checkmark    
頻譜平坦度   Black Checkmark   Black Checkmark    
傳輸寄生信號     Black Checkmark    
中心頻率容差        
符號時脈頻率容差        
星狀圖錯誤        
差錯向量幅度        
收發器測試        
頻帶外寄生放射     Black Checkmark    
接收器測試        
靈敏度       Black Checkmark footnote 4  
最大輸入位準       Black Checkmark footnote 4  
相鄰與交替通道斥拒       Black Checkmark (Footnote 3)  
接收器線性度       Black Checkmark footnote 4  
頻率和時序需求       Black Checkmark footnote 4  

1 可與各種數位轉換器結合,包括:PSA和ESA頻譜分析儀、N4010A無線連接測試組件、54600和54800示波器、邏輯分析儀及VXI。
2 熱感應器可提供純rms功率讀值。當應用OFDM/調變時,峰值偵測器會低估峰值-平均功率比的結果。
3 使用者建立的波形檔。利用第二台信號產生器和使用者建立的波形檔來作為干擾。
4 使用者建立的波形檔。

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N9075A & W9075A 802.16 OFDMA X-Series Measurement Application - Technical Overview 
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應用手冊 2013-10-04

Design and Test Solutions for Medical Devices - Brochure 
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型錄 2013-05-09

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Techniques for Precise Cable and Antenna Measurements in the Field - Application Note 
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應用手冊 2012-08-30

 
Techniques for Precise Measurement Calibrations in the Field - Application Note 
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應用手冊 2012-08-30

 
Test Solutions for Greater Insight into Wireless Connectivity - Brochure 
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型錄 2012-08-20

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EXT Wireless Communications Test Set Non-signaling Test Overview 
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應用手冊 2012-08-01

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Agilent Technologies Announces Wireless Communications Test Set with Innovative Multiport Adapter 
Agilent Technologies introduced the E6607B EXT wireless communications test set and companion E6617A multiport adapter. Optimized for non-signaling testing, the EXT/MPA combination increases test throughput and reduces the cost of test in the manufacturing of current- and next-generation smartphones and tablets that contain multiformat and multiband technologies.

新聞資料 2012-08-01

 
WiMAX Receiver Basics: Operation of a Dual Channel WiMAX Receiver 
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應用手冊 2012-06-05

 
Agilent Technologies Introduces 6-GHz Signal Generators with Industry-Best Performance 
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新聞資料 2012-05-01

 
89601B/BN-B7Y 802.16e OFDMA & -B7S 802.16-2004 OFDM, 89600B VSA Technical Overview 
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技術總覽 2011-06-11

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Wave 2 Mobile WiMax™ Measurements 89600 Vector Signal Analysis Software 
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基本展示 2011-03-05

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WiMAX (IEEE 802.16-2004) 89600 VSA Software 
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基本展示 2011-02-28

IEEE 802.16e WiMAX OFDMA Signal Measurements and Troubleshooting, AN 1578 
This note provides a broad overview of measurement and troubleshooting approaches for OFDMA signals, and is not limited to digital demodulation or modulation quality analysis.

應用手冊 2011-02-17

Solutions for MIMO RF Test and Debug 
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應用手冊 2010-07-14

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Solutions for Wireless Network Installation and Maintenance 
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型錄 2010-05-03

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應用手冊 2010-03-04

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專文 2010-01-11

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Agilent Technologies Recognized for Leadership in LTE and WiMAX™ Test Equipment Market  

新聞資料 2009-12-15

 
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型錄 2009-12-14

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應用手冊 2009-12-07

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