TW201444306A

TW201444306A - System and method for testing a radio frequency multiple-input multiple-output data packet transceiver while forcing fewer data streams

Info

Publication number: TW201444306A
Application number: TW103116804A
Authority: TW
Inventors: Christian Volf Olgaard
Original assignee: Litepoint Corp
Priority date: 2013-05-15
Filing date: 2014-05-13
Publication date: 2014-11-16
Also published as: TWI538422B

Abstract

In accordance with the presently claimed invention, a system and method are provided for testing multiple-input, multiple-output wireless radiofrequency (RF) packet data signal transceivers while operating in such ways as to communicate their signals using various combinations or permutations of packet data streams without requiring termination or re-establishment of communication links following transitions from one combination or permutation of packet data streams to another.

Description

用於測試射頻多輸入多輸出資料封包收發器同時強制較少資料串流之系統及方法 System and method for testing RF multi-input multi-output data packet transceiver and forcing less data stream

本發明係關於測試射頻(RF)無線封包資料信號收發器，且具體而言，係關於測試具有多個輸入及多個輸出之此類裝置。 The present invention relates to testing radio frequency (RF) wireless packet data signal transceivers and, in particular, to testing such devices having multiple inputs and multiple outputs.

許多現今的電子裝置使用無線技術作為連接及通訊這兩種目的。因為無線裝置發送並接收電磁能，且因為二或多個無線裝置可能由於信號頻率及功率頻譜密度而對彼此產生運作干擾，此等裝置及其無線技術必須遵循各種無線技術標準規格。 Many modern electronic devices use wireless technology for both connection and communication purposes. Because wireless devices transmit and receive electromagnetic energy, and because two or more wireless devices may interfere with each other due to signal frequency and power spectral density, such devices and their wireless technologies must adhere to various wireless technology standard specifications.

在設計這類裝置時，工程師必須特別小心確保這類裝置將符合或超越基於其各自包含之無線技術規定標準的規格。再者，當這些裝置稍後欲大量製造時，就必須接受測試以確保製造瑕疵不會造成運作不當，包括其遵循基於所包含之無線技術標準的規格。 When designing such devices, engineers must take special care to ensure that such devices will meet or exceed specifications based on their respective included wireless technology standards. Furthermore, when these devices are later to be manufactured in large quantities, they must be tested to ensure that manufacturing defects do not cause mishandling, including compliance with specifications based on the included wireless technology standards.

為了在製造及組裝裝置後測試這些裝置，現行無線裝置測試系統(「測試器」)採用用於分析自各裝置接收之信號之子系統。此類子系統通常包含用於提供待傳輸至裝置之來源信號之至少一向量信號產生器(VSG) 及用於分析裝置所產生之信號之一向量信號分析器(VSA)。VSG產生之測試信號及VSA執行之信號分析通常係可程式設計，使得各可用於測試各種裝置，以確認運用不同頻率範圍、頻寬及信號調變特性之裝置是否遵循各種無線技術標準。 In order to test these devices after manufacturing and assembling the device, current wireless device test systems ("testers") employ subsystems for analyzing signals received from the devices. Such subsystems typically include at least one vector signal generator (VSG) for providing a source signal to be transmitted to the device And a vector signal analyzer (VSA) for analyzing the signal generated by the device. The test signals generated by the VSG and the signal analysis performed by the VSA are typically programmable so that each can be used to test various devices to verify that devices using different frequency ranges, bandwidths, and signal modulation characteristics comply with various wireless technology standards.

最近無線射頻(RF)封包資料信號收發器之設計及操作開發為使用運用多個天線實施之多個輸入及多個輸出。換言之，稱為多輸入多輸出(MIMO)裝置之此類裝置使用多個天線來無線傳輸及接收其信號。據此，測試此類裝置時，必須使裝置行使其MIMO功能才能進行測試。例如，此包含操作受測試裝置(DUT)，使得其所有傳輸器及接收器分別是傳輸及接收操作，以經由其各自天線連接分別傳輸及接收其各自封包資料串流。N×N(N個輸入及N個輸出)DUT之此類完整測試包含經由無線信號路徑(例如，天線埠)之各一者傳輸及接收資料封包，並且減少傳輸及接收之封包資料串流數目以模擬真實操作，其中一或多個天線載送之封包資料串流展現空值(大衰減)並且藉此防止其成功接收及傳輸至對應裝置。達成此目的之習用測試技術包含中斷、解除連接或以其他方式停用無線信號之一者之傳輸及/或接收。但是，此一完全減少傳輸及接收之封包資料串流數目強制DUT及與其通訊之裝置或系統重新建置其相互無線通訊鏈路。每次將某封包資料串流數目轉變至另一數目時，必須重複此類通訊鏈路重新建置。例如，對於3×3 DUT，從操作三串流(使用兩個傳輸器及三個或三個以上接收器)通訊鏈路(三個天線載送三個接收信號及三個傳輸信號)轉變至兩串流通訊鏈路(仍使用所有三個傳輸器及三個接收器時，傳輸及接收兩個串流)，並且接著轉變至單串流通訊鏈路(其中三個傳輸器及三個接收器僅使用單一串流)，在建置初始通訊鏈路後，隨著DUT從接收及傳輸三個封包資料串流轉變至兩個封包資料串流並且接著轉變至單封包資料串流，需要兩次執行重新建置通訊鏈路。 Recently, the design and operation of radio frequency (RF) packet data signal transceivers have been developed to use multiple inputs and multiple outputs implemented using multiple antennas. In other words, such devices, known as multiple input multiple output (MIMO) devices, use multiple antennas to wirelessly transmit and receive their signals. Accordingly, when testing such devices, the device must be allowed to perform its MIMO function in order to be tested. For example, this includes operating a device under test (DUT) such that all of its transmitters and receivers are transmitting and receiving operations, respectively, to transmit and receive their respective packet data streams via their respective antenna connections. Such complete tests of N×N (N inputs and N outputs) DUTs include transmitting and receiving data packets via each of the wireless signal paths (eg, antenna ports) and reducing the number of packet data streams transmitted and received In a simulated real-world operation, the packet data stream carried by one or more antennas exhibits a null value (large attenuation) and thereby prevents its successful reception and transmission to the corresponding device. The conventional testing techniques for achieving this include the transmission and/or reception of one of the wireless signals that are interrupted, disconnected, or otherwise disabled. However, this completely reduces the number of packet data streams transmitted and received, forcing the DUT and the device or system with which it communicates to re-establish its mutual wireless communication link. Each time a packet stream number is converted to another number, such communication link re-establishment must be repeated. For example, for a 3x3 DUT, from a three-stream (using two transmitters and three or more receivers) communication links (three antennas carrying three received signals and three transmitted signals) to Two-stream communication link (transmitting and receiving two streams when all three transmitters and three receivers are still used), and then transitioning to a single-stream communication link (three transmitters and three receivers) Only use a single stream), at the beginning of construction After the communication link is started, the re-establishment communication link needs to be performed twice as the DUT transitions from receiving and transmitting three packet data streams to two packet data streams and then to a single packet data stream.

與測試序列期間執行之其他任務相比，DUT與通訊合作裝置(例如，包含一或多個VSG及VSA之測試系統，通常稱為「測試器」，或N×N MIMO參考裝置，諸如先前經測試且驗證之類似設計之收發器)之間之RF信號通訊鏈路之此類重設通常會耗費大量時間。其他整體測試序列之許多此類其他部分不易受到其持續時間縮短之影響。據此，希望具有一種在測試MIMO DUT時減少傳輸及接收封包資料串流而不需要重設或重新建置通訊鏈路之技術。 The DUT communicates with the communication device (eg, a test system including one or more VSGs and VSAs, commonly referred to as a "tester", or an N x N MIMO reference device, such as a previous pass, as compared to other tasks performed during the test sequence) Such resetting of the RF signal communication link between tested and verified similarly designed transceivers typically takes a significant amount of time. Many of these other parts of other overall test sequences are not susceptible to a reduction in their duration. Accordingly, it would be desirable to have a technique for reducing the transmission and reception of packet data streams while testing a MIMO DUT without the need to reset or re-establish the communication link.

根據目前主張專利權的本發明，提供系統及方法，用於測試操作中之多輸入多輸出無線射頻(RF)封包資料信號收發器，使得使用各種封包資料串流組合或排列來傳達其信號，而不需要在封包資料串流組合或排列之間轉變後終止或重新建置通訊鏈路。 According to the presently claimed invention, a system and method are provided for testing a multi-input multi-output radio frequency (RF) packet data signal transceiver in operation, such that a plurality of packet data streams are combined or arranged to communicate their signals, It is not necessary to terminate or re-establish the communication link after the packet data stream combination or arrangement transition.

根據本發明所主張之權利範圍的實施例，一種測試一射頻(RF)多輸入多輸出(MIMO)封包資料信號收發器受測試裝置(DUT)之方法，其包含：建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊，其中N為一整數；以及進一步包含維持該MIMO通訊鏈路，同時使該複數個N個DUT封包資料信號之一或多者之至少一部分毀損以提供含有該複數個N 個資料串流的部分毀損之複數個N個DUT封包資料信號，用該測試收發器接收含有該複數個N個資料串流的該部分毀損之複數個N個DUT封包資料信號，並且回應於此，用該測試收發器無法及時提供該複數個測試封包資料信號之一相對應部分，以及繼該用該測試收發器無法及時提供該複數個測試封包資料信號之該相對應部分後，用該測試收發器接收含有複數個N-M個資料串流的該部分毀損之複數個N個DUT封包資料信號，其中M為一整數且0<N-M<N。 According to an embodiment of the claimed invention, a method for testing a radio frequency (RF) multiple input multiple output (MIMO) packet data signal transceiver test device (DUT) includes: constructing a test transceiver a MIMO communication link between the device and a DUT for transmitting a plurality of N DUT packet data signals provided by the DUT for the test transceiver and a plurality of test packet data provided by the test transceiver for the DUT Signaling, wherein N is an integer; and further comprising maintaining the MIMO communication link while destroying at least a portion of one or more of the plurality of N DUT packet data signals to provide the plurality of Ns a plurality of N DUT packet data signals that are partially corrupted by the data stream, and the test transceiver receives a plurality of N DUT packet data signals that are corrupted by the portion of the plurality of N data streams, and responds thereto Using the test transceiver, the corresponding portion of the plurality of test packet data signals cannot be provided in time, and the corresponding portion of the plurality of test packet data signals cannot be provided in time after the test transceiver is used. The transceiver receives the plurality of N DUT packet data signals that are corrupted by the portion of the plurality of NM data streams, where M is an integer and 0 < NM < N.

根據本發明所主張之權利範圍的另一實施例，一種測試一射頻(RF)多輸入多輸出(MIMO)封包資料信號收發器受測試裝置(DUT)之方法，其包含：建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊，其中N為一整數，該複數個N個DUT封包資料信號之各者包含一或多個DUT資料封包，且該複數個測試封包資料信號之各者包含一或多個測試資料封包；以及進一步包含維持該MIMO通訊鏈路，同時使該一或多個DUT資料封包之至少一者毀損以提供含有至少一個毀損之DUT資料封包且含有該複數個N個資料串流之該複數個N個DUT封包資料信號，用該測試收發器接收含有至少一個毀損之DUT資料封包且含有該複數個N個資料串流之該複數個N個DUT封包資料信號，並且回應於此，用該測試收發器無法及時提供該複數個測試封包資料信號之一或多個相對應部分，以及繼該用該測試收發器無法及時提供該複數個測試封包資料信號之該一或多個相對應部分後，用該測試收發器接收含有至少一個毀損之DUT資料封包且含有複數個N-M個資料串流之該複數個N個DUT封包資料信號，其中M為一整數且0<N-M<N。 According to another embodiment of the claimed invention, a method of testing a radio frequency (RF) multiple input multiple output (MIMO) packet data signal transceiver test device (DUT) includes: constructing a Testing a MIMO communication link between the transceiver and a DUT for transmitting a plurality of N DUT packet data signals provided by the DUT for the test transceiver and a plurality of tests provided by the test transceiver for the DUT The packet data signal is communicated, wherein N is an integer, each of the plurality of N DUT packet data signals includes one or more DUT data packets, and each of the plurality of test packet data signals includes one or more tests Data packet; and further comprising maintaining the MIMO communication link while causing at least one of the one or more DUT data packets to be corrupted to provide a DUT data packet containing at least one corruption and including the plurality of N data streams a plurality of N DUT packet data signals, wherein the test transceiver receives the plurality of N DUT packets containing at least one corrupted DUT data packet and containing the plurality of N data streams Signaling, and in response thereto, the test transceiver cannot provide one or more corresponding portions of the plurality of test packet data signals in time, and the test transceiver transceiver cannot provide the plurality of test packet data signals in time. After the one or more corresponding parts, the test transceiver receives the DUT data packet containing at least one damage and includes the complex The plurality of N DUT packet data signals of the plurality of N-M data streams, wherein M is an integer and 0<N-M<N.

10‧‧‧測試環境 10‧‧‧Test environment

20‧‧‧多輸入多輸出(MIMO)受測試裝置(DUT) 20‧‧‧Multiple Input Multiple Output (MIMO) Tested Device (DUT)

21‧‧‧信號路徑(纜線；信號路徑之部分) 21‧‧‧Signal path (cable; part of the signal path)

21w‧‧‧無線信號路徑 21w‧‧‧Wire signal path

22a、22b、22c‧‧‧天線埠 22a, 22b, 22c‧‧‧ antenna埠

22aa、22ba、22ca‧‧‧天線 22aa, 22ba, 22ca‧‧‧ antenna

23‧‧‧確認資料封包 23‧‧‧Confirm data packet

25‧‧‧確認封包 25‧‧‧Confirmation packet

30‧‧‧參考MIMO裝置 30‧‧‧Reference MIMO device

31‧‧‧信號路徑(纜線) 31‧‧‧Signal path (cable)

31a‧‧‧信號埠 31a‧‧‧Signal

33‧‧‧資料封包 33‧‧‧Information packet

35b‧‧‧資料封包 35b‧‧‧ data packet

35c‧‧‧回應資料封包 35c‧‧‧Responding to data packets

36a‧‧‧資料封包之初始時間間隔 36a‧‧‧Initial time interval for data packets

36aa‧‧‧資料封包之第一部分或時間間隔 36aa‧‧‧ The first part or interval of the data packet

36ab‧‧‧封包資料串流之初始部分 The initial part of the 36ab‧‧‧ packet data stream

36b‧‧‧資料封包之後部時間間隔 36b‧‧‧Time interval after data packet

36ba‧‧‧資料封包之後面部分 36ba‧‧‧After the data packet

36bb‧‧‧封包資料串流之後面部分 36bb‧‧‧ After the packet data stream

40‧‧‧測試器 40‧‧‧Tester

41‧‧‧命令、控制及資料信號介面 41‧‧‧Command, Control and Data Signal Interface

42a、42b、42c‧‧‧信號分離器或劃分器 42a, 42b, 42c‧‧‧Signal splitters or dividers

43a、43b、43c‧‧‧封包資料信號串流 43a, 43b, 43c‧‧‧ Packet data stream

50‧‧‧信號毀損電路 50‧‧‧Signal Damage Circuit

51‧‧‧信號路徑(纜線) 51‧‧‧Signal path (cable)

52a、52b、52c‧‧‧信號毀損電路 52a, 52b, 52c‧‧‧ signal destruction circuit

52r‧‧‧信號衰減器電路 52r‧‧‧Signal Attenuator Circuit

54‧‧‧控制電路 54‧‧‧Control circuit

55a、55b、55c‧‧‧控制信號 55a, 55b, 55c‧‧‧ control signals

圖1繪示根據一或多個例示性實施例之用於測試MIMO DUT之測試環境。 FIG. 1 illustrates a test environment for testing a MIMO DUT in accordance with one or more exemplary embodiments.

圖2繪示根據一或多個例示性實施例之自測試MIMO DUT所得之信號時序圖。 2 is a timing diagram of signals obtained from a self-test MIMO DUT, in accordance with one or more exemplary embodiments.

圖3為如圖1之測試環境所施加及如圖2中所表示之信號毀損之時序圖。 Figure 3 is a timing diagram of the signal damage as applied by the test environment of Figure 1 and as shown in Figure 2.

圖4繪示用於圖1之測試環境之信號毀損電路之例示性實施例。 4 illustrates an exemplary embodiment of a signal corruption circuit for the test environment of FIG.

圖5繪示用於圖1之測試環境之一部分之替代實施例。 FIG. 5 illustrates an alternate embodiment of a portion of the test environment for FIG. 1.

下列詳細說明係參照附圖之目前主張專利權的本發明之例示性實施例。此份說明意欲例示本發明之範疇，而並非限制性說明。以足使本領域具通常知識者得以實施本發明之細節來敘述這種實施例，且應了解到可以一些變異來實施其他實施例，而不背離本發明之精神及範圍。 The following detailed description refers to the exemplary embodiments of the present invention, which is claimed in the claims. This description is intended to be illustrative of the invention and is not intended to be limiting. The embodiments are described in detail to enable a person of ordinary skill in the art to practice the invention, and it is understood that the invention may be practiced without departing from the spirit and scope of the invention.

在整份說明書中，在缺少對上下文的相反明確指示下，將了解到所述的個別電路元件在數量上可為單一個或複數個。例如，「電路」及「電路系統」等語可包含單一元件或複數個元件，其可為主動及/或被動，且連接或以其他方式接合在一起(如一或多個積體電路晶片)，以提供所述功能。另外，「信號」一詞可指一或更多電流、一或更多電壓或資料信號。在圖式中，類似或相關元件將會有類似或相關字母、數字或字母數字標誌符號。此外，雖已在使用離散電子電路(較佳以一或更多個積體線路晶片的形式)的實施情境中討論本發明，但取決於待處理的信號頻率或資料速率，可使用一或更多個適當編程之處理器來實現這種電路的任何部分之功能。此外，於以圖式繪示各種實施例之功能方塊圖時，功能方塊未必表示硬體電路系統間之分隔。 Throughout the specification, in the absence of a clear indication of the context, it will be appreciated that the individual circuit elements described may be single or plural in number. For example, the terms "circuit" and "circuitry" can include a single element or a plurality of elements that can be active and/or passive and that are connected or otherwise joined together (eg, one or more integrated circuit chips), To provide the described functionality. In addition, the term "signal" may refer to one or more currents, one or more voltages, or a data signal. in In the drawings, similar or related elements will have similar or related letters, numbers or alphanumeric symbols. Moreover, although the invention has been discussed in the context of implementations using discrete electronic circuits, preferably in the form of one or more integrated line wafers, one or more may be used depending on the frequency or data rate of the signal to be processed. A number of suitably programmed processors implement the functionality of any portion of such circuitry. In addition, when the functional block diagrams of the various embodiments are illustrated in the drawings, the functional blocks do not necessarily represent the separation between the hardware circuitry.

在下文更詳細論述，提供系統及方法，用於在N×N MIMO DUT經MIMO鏈接至N×N MIMO參考裝置(或替代地，經MIMO鏈接至經組態以操作為N×N MIMO封包資料信號收發器之測試器)的測試環境中，強制較少傳輸及接收封包資料串流。一旦已建置N×N通訊鏈路，MIMO DUT將使用所有N個傳輸器及天線埠來傳輸資料(作為剖析成含有N個資料串流之N個同時並行封包組之封包)至MIMO參考裝置。根據熟知原理，由MIMO參考裝置成功接收所有N個並行封包組之N個資料串流將使MIMO參考裝置可重新建構資料。(為了下文論述用途，將論述3×3系統及測試序列，即，其中N=3。但是，熟知此項技術者應易於明白，N可為其他整數值)。 As discussed in more detail below, systems and methods are provided for MIMO-linked to NxN MIMO reference devices over NxN MIMO DUTs (or alternatively, MIMO linked to configured to operate as NxN MIMO packet data) In the test environment of the signal transceiver tester, it is forced to transmit and receive packet data streams less. Once the N×N communication link has been established, the MIMO DUT will use all N transmitters and antennas to transmit data (as a packet parsed into N simultaneous parallel packet groups containing N data streams) to the MIMO reference device. . According to well-known principles, the successful reception of N data streams for all N parallel packet groups by the MIMO reference device will enable the MIMO reference device to reconstruct the data. (For the purposes discussed below, the 3x3 system and test sequence will be discussed, i.e., where N = 3. However, those skilled in the art should readily appreciate that N can be other integer values).

為了回復至(使MIMO DUT使用較少封包資料串流)之操作，將需要使鏈路中斷、變更組態及建置新鏈路，使得系統僅支援兩個封包資料串流。據此，若3×3操作變更成兩串流操作，資料將剖析成待由三個DUT傳輸器(或替代地，兩個傳輸器，雖然優點較小)傳輸之兩個資料串流。此使MIMO參考裝置能夠重新建構自DUT傳輸器接收之資料。但是，由於系統實際上為3×3系統(為此實例之用途)，所以應使用所有三個傳輸器藉由根據熟知技術使用空間映射來傳輸兩個封包資料串流。 In order to revert to the operation of making the MIMO DUT use less packet data streams, it will be necessary to interrupt the link, change the configuration, and build a new link so that the system supports only two packet data streams. Accordingly, if the 3x3 operation is changed to a two-stream operation, the data will be parsed into two data streams to be transmitted by three DUT transmitters (or alternatively, two transmitters, albeit with less advantage). This enables the MIMO reference device to reconstruct the data received from the DUT transmitter. However, since the system is actually a 3x3 system (for the purposes of this example), all three transmitters should be used to transmit two packet data streams using spatial mapping according to well known techniques.

如下文更詳細論述，根據例示性實施例，啟用MIMO DUT以從N×3回復至N×2操作組態，而不需要中斷且接著重新建置新通訊鏈路，同時仍維持使用所有DUT傳輸器。根據例示性實施例，在由MIMO參考裝置接收之前，選擇性使DUT傳輸器之一者所傳輸之封包資料串流之一者毀損(下文更詳細論述)。此毀損將造成無法成功接收封包資料串流，並且因此視為失敗，此係因為無法成功接收封包資料串流之一者，所以MIMO參考裝置將無法重新建構資料。結果，MIMO參考裝置將無法藉由傳輸確認資料封包來作出回應。 As discussed in more detail below, in accordance with an exemplary embodiment, the MIMO DUT is enabled to revert from Nx3 to an Nx2 operational configuration without interrupting and then re-establishing a new communication link while still maintaining use of all DUT transmissions Device. According to an exemplary embodiment, one of the packet data streams transmitted by one of the DUT transmitters is selectively corrupted (discussed in more detail below) prior to being received by the MIMO reference device. This corruption will result in the inability to successfully receive the packet data stream and is therefore considered a failure. This is because the MIMO reference device will not be able to reconstruct the data because one of the packet data streams cannot be successfully received. As a result, the MIMO reference device will not be able to respond by transmitting a confirmation data packet.

其後，DUT再次經由所有DUT傳輸器發送封包資料串流，並且再次封包資料串流之一者有毀損。據此，MIMO參考裝置將再次無法重新建構資料，並且因此未用確認資料封包來作出回應。此刻，根據由適用信號傳輸標準實施之標準協定，DUT將回復至減少數目之資料串流，例如，回復至N×2操作組態，並且現在經由其N個DUT傳輸器發送剖析成較少(例如，兩個而非三個封包資料串流)封包資料串流。MIMO參考裝置現在甚至當第三路徑毀損時仍可接收由較少DUT傳輸器發送之無毀損資料之封包資料串流兩者，並且據此用確認資料封包來作出回應。因此，DUT已有效地自N×3回復至N×2操作，而不需要中斷及重新確證或重新建置通訊鏈路，並且仍使用所有N個DUT傳輸器來進行所有操作。 Thereafter, the DUT again transmits the packet data stream via all DUT transmitters, and again one of the packet data streams is corrupted. Accordingly, the MIMO reference device will no longer be able to reconstruct the data again, and therefore does not respond with a confirmation data packet. At this point, according to the standard protocol implemented by the applicable signal transmission standard, the DUT will revert to a reduced number of data streams, for example, to an N x 2 operational configuration, and now send parsing to less via its N DUT transmitters ( For example, two instead of three packet data streams) packet data stream. The MIMO reference device can now receive both packet data streams transmitted by less DUT transmitters without corrupted data even when the third path is corrupted, and accordingly respond with a confirmation data packet. Thus, the DUT has effectively returned from Nx3 to Nx2 operation without interrupting and re-confirming or re-establishing the communication link, and still using all N DUT transmitters for all operations.

如下文更詳細論述，根據例示性實施例，提供系統及方法，用於使用相容MIMO參考裝置及一組中介受控制信號毀損電路(一個中介受控制信號毀損電路用於各DUT無線信號路徑，例如，一個中介受控制信號毀損電路用於各DUT天線埠)來測試MIMO DUT。藉由經由控制器(控制器繼而控制信號毀損電路之設定)傳達，測試器可造成從MIMO DUT運送至MIMO參考裝置之一或多個資料封包變成有毀損，設定條件，如上文所述，其中DUT將回復至較少封包資料串流。(信號毀損實際上可為任何形式，只要在測試DUT時，造成毀損之資料封包無法符合信號通訊標準或協定，同時確保可接收其他並行傳輸封包。實例包含信號功率衰減及部分封包衰減)。 As discussed in more detail below, in accordance with an illustrative embodiment, systems and methods are provided for using a compatible MIMO reference device and a set of intermediate controlled signal destruction circuits (an intermediate controlled signal destruction circuit for each DUT wireless signal path, For example, an intermediary is controlled by a signal destruction circuit for each DUT antenna 埠) to test the MIMO DUT. By controller (controller) And then the setting of the control signal destruction circuit) conveys that the tester can cause one or more data packets transported from the MIMO DUT to the MIMO reference device to become corrupted, setting conditions, as described above, wherein the DUT will revert to less packet data Streaming. (Signal corruption can be in any form, as long as the data packet that caused the damage is not in compliance with the signal communication standard or protocol when testing the DUT, while ensuring that other parallel transmission packets can be received. Examples include signal power attenuation and partial packet attenuation).

測試器取樣由MIMO DUT傳輸之資料封包，如信號毀損之前其接收之資料封包。據此，測試器可偵測及處理無毀損資料封包，同時MIMO參考裝置將接收毀損及無毀損資料封包兩者。使用所選擇之資料封包毀損(其中資料封包之後面部分有毀損(部分封包衰減)，而非使整個信號衰減)，處理程序更穩定，此係因為此將最小化仍然接收衰減信號的可能性，接收衰減信號的可能性係歸因於傳入信號之衰減而使MIMO參考裝置在嘗試接收衰減信號時增加其接收信號增益，因而衰減信號會透過MIMO參考裝置對應接收通道而洩漏。 The tester samples the data packets transmitted by the MIMO DUT, such as the data packets it receives before the signal is corrupted. Accordingly, the tester can detect and process non-destructive data packets, while the MIMO reference device will receive both corrupted and non-destructive data packets. Using the selected data packet to corrupt (the part of the data packet is damaged (partial packet attenuation) instead of attenuating the entire signal), the processing procedure is more stable, because this will minimize the possibility of still receiving the attenuation signal. The possibility of receiving an attenuated signal is due to the attenuation of the incoming signal causing the MIMO reference device to increase its received signal gain when attempting to receive the attenuated signal, and thus the attenuated signal will leak through the corresponding receive channel of the MIMO reference device.

重要事項為，系統監視傳輸封包之持續時間，以判定DUT 20使用之串流數目。例如，DUT 20可直接從三個串流切換至一個串流，此亦會導致產生確認封包。但是，此會導致DUT 20產生較長之封包(因為來自三個串流之資料現在被包含在一個串流中)。熟知此項技術者可確定強制正確串流數目之不同策略。 The important thing is that the system monitors the duration of the transmitted packet to determine the number of streams used by the DUT 20. For example, the DUT 20 can switch directly from three streams to one stream, which also results in an acknowledgment packet. However, this causes the DUT 20 to generate longer packets (because the data from the three streams is now contained in one stream). Those skilled in the art can determine different strategies for forcing the correct number of streams.

進一步優點包含，藉由使測試器能夠測試所有可能的封包資料串流，且不需要中斷或重新建置MIMO通訊鏈路，而縮減測試時間，並且確認DUT 20可與該環境協商，其中三個傳輸封包中僅兩個封包可被成功接收。另外，若提供受測試之無線信號協定用於在資料封包無法引起回應應答資料封包時減小或減速資料速率，則可自動測試基礎信號標準或協定所指定之更多(例如，所有)可能封包資料速率。 Further advantages include reducing the test time by enabling the tester to test all possible packet data streams without interrupting or re-establishing the MIMO communication link, and confirming that the DUT 20 can negotiate with the environment, three of which Only two packets in the transport packet can be successfully received. In addition, if the wireless signal protocol under test is provided for use in data packets, it cannot cause a response. Decreasing or decelerating the data rate when responding to a data packet automatically tests for more (eg, all) possible packet data rates as specified by the underlying signal standard or protocol.

請參閱圖1，提供根據例示性實施例之測試環境10，用於測試MIMO DUT 20(下文論述為3×3 MIMO DUT，然而可類似地測試其他N×N或N×M組態)。測試器40監測及偵測封包資料信號串流時，與參考MIMO裝置30通訊。(熟知此項技術者應易於明白，作為替代，參考MIMO裝置30可被包含作為測試器40之部件，或被實施為經組態以操作為相容MIMO裝置之另一測試器)。亦包含信號毀損電路50，信號毀損電路50包含信號毀損電路52a、52b、52c，信號毀損電路根據控制電路54(例如，場可程式化閘陣列)提供之控制信號55a、55b、55c而選擇性使DUT 20傳輸之封包資料串流有毀損(例如，使各自封包資料串流之資料封包之後面部分衰減)。控制電路54繼而經由命令、控制及資料信號介面41來與測試器40通訊。 Referring to FIG. 1, a test environment 10 is provided for testing a MIMO DUT 20 (discussed below as a 3x3 MIMO DUT, although other NxN or NxM configurations can be similarly tested), in accordance with an exemplary embodiment. The tester 40 communicates with the reference MIMO device 30 when monitoring and detecting the packet data signal stream. (It will be readily apparent to those skilled in the art that, alternatively, reference MIMO device 30 may be included as part of tester 40 or as another tester configured to operate as a compatible MIMO device). Also included is signal corruption circuit 50, which includes signal destruction circuits 52a, 52b, 52c that are selectively selected based on control signals 55a, 55b, 55c provided by control circuit 54 (e.g., field programmable gate array). The packet data stream transmitted by the DUT 20 is corrupted (for example, the portion of the data packet after the respective packet data stream is attenuated). Control circuit 54 then communicates with tester 40 via command, control, and data signal interface 41.

MIMO DUT 20及參考MIMO裝置30經由信號毀損電路50、信號分離器或劃分器42a、42b、42c及信號路徑21、51、31傳達其各自封包資料串流及應答資料封包。信號路徑21、51、31通常為RF纜線形式之傳導信號路徑，其中纜線21連接MIMO DUT 20，且信號分離器42a、42b、42c連接至MIMO DUT 20之天線埠22a、22b、22c。 MIMO DUT 20 and reference MIMO device 30 communicate their respective packet data streams and response data packets via signal corruption circuit 50, signal splitters or dividers 42a, 42b, 42c and signal paths 21, 51, 31. Signal paths 21, 51, 31 are typically conductive signal paths in the form of RF cables, with cable 21 connected to MIMO DUT 20 and signal splitters 42a, 42b, 42c connected to antenna ports 22a, 22b, 22c of MIMO DUT 20.

根據熟知原理及技術，在測試期間，信號分離器或劃分器42a、42b、42c(其各項實施方案已為此項技術所熟知)分離或劃分(就信號量值或功率而論)MIMO DUT 20傳輸之封包資料信號串流。在測試期間由測試器40接收及監測這些劃分之封包資料信號串流43a、43b、43c，用於判定MIMO DUT 20是否根據規定之信號標準或協定傳輸封包資料信號。或者，如果使用參考MIMO裝置30以監視資料封包吞吐量僅為所欲或必要的話，可以省略測試器40。 According to well-known principles and techniques, signal splitters or dividers 42a, 42b, 42c (all of which are well known in the art) are separated or divided (in terms of semaphore or power) MIMO DUT during testing. 20 transmitted packet data signal stream. These divided packet data signal streams 43a, 43b, 43c are received and monitored by the tester 40 during testing to determine whether the MIMO DUT 20 transmits the packet data signal in accordance with a prescribed signal standard or protocol. or, The tester 40 can be omitted if the reference MIMO device 30 is used to monitor data packet throughput as desired or necessary.

如此處針對此實例所描繪，MIMO DUT 20為3×3 DUT。初始，DUT 20經組態用於全MIMO(即，3×3)操作。據此，由DUT傳輸器(圖中未繪示，但已知在DUT 20內)傳輸三個封包資料串流，以供由參考MIMO裝置30經由其各自信號分離器42a、42b、42c、信號毀損電路52a、52b、52c及信號路徑21、51、31予以接收，以及由測試器40予以接收。在未應用任何毀損情況中，將封包資料串流完整無缺地自DUT 20載送至參考裝置30。但是，傳輸資料封包時，若之後由參考裝置30接收資料封包時變成充分毀損(例如，衰減)，則參考裝置30無法成功接收含有此類選擇性毀損資料封包之一或多個封包資料信號串流。此將使參考裝置39無法自無毀損資料封包重新建構資料，並且結果，未回對應確認或應答資料封包(或並行確認封包)作出回應。 As depicted herein for this example, MIMO DUT 20 is a 3x3 DUT. Initially, DUT 20 is configured for full MIMO (ie, 3x3) operation. Accordingly, three packet data streams are transmitted by the DUT transmitter (not shown, but known within the DUT 20) for transmission by the reference MIMO device 30 via its respective signal separators 42a, 42b, 42c, signals. The damage circuits 52a, 52b, 52c and the signal paths 21, 51, 31 are received and received by the tester 40. In the absence of any damage, the packet data stream is carried intact from the DUT 20 to the reference device 30. However, when the data packet is transmitted, if the data packet is subsequently fully damaged (eg, attenuated) by the reference device 30, the reference device 30 cannot successfully receive one or more packets of the data packet containing the selective corruption data packet. flow. This will make it impossible for the reference device 39 to reconstruct the data from the non-destructive data packet and, as a result, will not respond back to the corresponding acknowledgement or response data packet (or parallel acknowledgement packet).

應注意，因為初始未衰減封包，即，在資料封包載送開始期間，MIMO參考裝置30內之相對應接收器電路將維持信號增益，在其餘資料封包期間，信號增益將維持實質上恆定，藉由限制歸因於接收器電路之增益控制電路會在封包資料信號串流開始衰減時自動增加信號增益所引起之信號增益而造成接收毀損資料封包的可能性。 It should be noted that because the initial un-attenuated packet, i.e., during the beginning of the data packet carrier, the corresponding receiver circuit within the MIMO reference device 30 will maintain the signal gain, during the remaining data packets, the signal gain will remain substantially constant, The gain control circuit attributed to the receiver circuit by the limit automatically increases the signal gain caused by the signal gain when the packet data signal stream begins to decay, resulting in the possibility of receiving a corrupted data packet.

請參閱圖2，可更佳瞭解諸如上文所述之用於減少MIMO信號串流而不需要中斷或以其他方式改變初始MIMO通訊鏈路條件之系統及方法。參考MIMO裝置30自其三信號傳輸器子系統(圖中未繪示，但已知在參考MIMO裝置30內)傳輸一組資料封包33(例如，「ping」(偵測)封包，然而亦可使用其他類型封包)。經由信號路徑21、51、31、信號分離器42a、42b、42c及信號毀損電路52a、52b、52c將此類封包33載送至DUT 20，其中由控制電路54將信號毀損電路設定為尚未引入任何停用信號毀損。DUT 20作出回應而自其各自傳輸器子系統傳輸一或多個確認資料封包23。運用現在於DUT 20與參考裝置30之間建置之通訊鏈路，DUT 20繼續處理含有三個各自資料串流之回應資料封包35a(其封包持續時間類似於初始封包33之持續時間)：S₁、S₂及S₃；S₁’、S₂’及S₃’；以及S₁”、S2”及S₃”。通常，參考裝置30會接收三個封包資料串流並且能夠重新建構資料。但是，在參考裝置30接收這些資料串流前，封包串流之一者(例如，到達參考裝置30之第一或最頂端信號埠31a之封包)有毀損(例如，衰減)，如圖所示。如上文所述，在資料封包之第一部分或時間間隔36aa期間，資料封包維持無毀損。但是，在後面部分36ba期間，藉由相對應信號毀損電路52a施加毀損。結果，參考裝置30無法重新建構資料，據此未藉由傳輸確認封包來回應DUT 20。 Referring to FIG. 2, systems and methods for reducing MIMO signal streams, such as those described above, without interrupting or otherwise changing the initial MIMO communication link conditions, may be better appreciated. The reference MIMO device 30 transmits a set of data packets 33 (eg, "ping" (detecting) packets from its three signal transmitter subsystems (not shown, but known in the reference MIMO device 30), but Use other types of packets). Such a packet 33 is carried to the DUT 20 via signal paths 21, 51, 31, signal splitters 42a, 42b, 42c and signal corruption circuits 52a, 52b, 52c, wherein the signal destruction circuit is set by control circuit 54 to have not been introduced Any deactivation signal is corrupted. The DUT 20 responds by transmitting one or more acknowledgement packets 23 from its respective transmitter subsystem. Using the communication link now established between the DUT 20 and the reference device 30, the DUT 20 continues to process the response data packet 35a containing three respective data streams (the duration of which is similar to the duration of the initial packet 33): ₁ , S ₂ and S ₃ ; S ₁ ', S ₂ ' and S ₃ '; and S ₁ ", S2" and S ₃ ". Typically, the reference device 30 receives three packet data streams and is able to reconstruct the data. However, one of the packet streams (eg, the packet arriving at the first or topmost signal 埠31a of the reference device 30) is corrupted (eg, attenuated) before the reference device 30 receives the data stream, as shown in the figure. As described above, during the first portion of the data packet or during the time interval 36 aa, the data packet remains intact. However, during the latter portion 36ba, the damage is applied by the corresponding signal destruction circuit 52a. As a result, the reference device 30 cannot. The data is reconstructed and accordingly the DUT 20 is not responded by transmitting a confirmation packet.

DUT 20可作出回應而繼續重新傳輸相同資料封包35b(由於未成功接收先前封包)，但現有具有減小之資料速率，儘管仍然使用三個封包資料串流。但是，如同前文所述，第一封包資料串流在初始部分36ab後的後部分36bb期間毀損，在初始部分期間未施加缺使得接收器電路維持初始標稱信號增益。結果，再次，參考裝置30無法重新建構資料且未用確認封包來作出回應。據此，如圖所示，DUT 20此時繼續傳輸另一組回應資料封包35c。但是，DUT 20現在已回復至兩串流操作組態且使用決定的資料速率(其可等於、高於或低於先前三串流操作)，而且現在資料被剖析成兩個信號串流以用於繼續經由所有三個DUT傳輸路徑予以傳輸：S₁及S₂；S₁’及S₂’；S₁”及S₂”。 The DUT 20 can respond by continuing to retransmit the same data packet 35b (since the previous packet was not successfully received), but currently has a reduced data rate, although three packet data streams are still used. However, as previously described, the first packet data stream is corrupted during the rear portion 36bb after the initial portion 36ab, and no gap is applied during the initial portion to cause the receiver circuit to maintain the initial nominal signal gain. As a result, again, the reference device 30 cannot reconstruct the data and does not respond with an acknowledgement packet. Accordingly, as shown, the DUT 20 continues to transmit another set of response data packets 35c at this time. However, the DUT 20 has now reverted to the two stream operation configuration and uses the determined data rate (which can be equal to, higher or lower than the previous three stream operations), and now the data is parsed into two signal streams for use. It continues to be transmitted via all three DUT transmission paths: S ₁ and S ₂ ; S ₁ ' and S ₂ '; S ₁ ' and S ₂ '.

結果，儘管資料封包之一者有毀損(即，含有第一信號串流S₁及S₂之資料封包)，但是現在參考裝置30接收含有兩個經剖析串流(S₁’及S₂’以及S₁”及S₂”)之兩個封包，現在這足以使參考裝置30能夠重新建構資料。據此，參考裝置30藉由發送確認封包25而作出回應。 As a result, although one of the data packets is corrupted (i.e., contains the data packets of the first signal stream S ₁ and S ₂ ), the reference device 30 now receives the two parsed streams (S ₁ ' and S ₂ ' And the two packets of S ₁ "and S ₂ "), which is now sufficient to enable the reference device 30 to reconstruct the material. Accordingly, the reference device 30 responds by transmitting an acknowledgement packet 25.

請參閱圖3，如上文所述，在資料封包之初始時間間隔36a為有毀損期間，停用施加或引發毀損(或至少顯著減小)。其後，在後部時間間隔36b期間，啟用毀損(或至少顯著增加)。 Referring to Figure 3, as described above, during the initial time interval 36a of the data packet is a period of damage, the application is deactivated or induced to cause damage (or at least significantly reduced). Thereafter, during the rear time interval 36b, the damage is enabled (or at least significantly increased).

請參閱圖4，作為例示性實施例，信號毀損電路52可實施為信號衰減器電路52r(其各種形式已為此項技術所熟知)，以致使封包資料串流具有足以成功接收之充分功率位準。 Referring to FIG. 4, as an exemplary embodiment, signal corruption circuit 52 can be implemented as signal attenuator circuit 52r (which is well known in the art) such that the packet data stream has sufficient power to be successfully received. quasi.

請參閱圖5，根據另一例示性實施例，DUT 20及信號分離器42a、42b、42c之間的信號路徑之部分21可實施為無線信號路徑21w，其中連接至DUT 20之天線22aa、22ba、22ca與連接至信號分離器42a、42b、42c之天線22ab,22bb,22cb通訊，以載送封包資料串流。用於DUT 20之此類無纜線介面具有以更實際可行方式操作DUT 20並且避免需要實體上連接及解除連接DUT 20之測試纜線DUT 20之優點。 Referring to FIG. 5, according to another exemplary embodiment, a portion 21 of the signal path between the DUT 20 and the demultiplexers 42a, 42b, 42c may be implemented as a wireless signal path 21w, wherein the antennas 22aa, 22ba connected to the DUT 20 are implemented. 22ca communicates with antennas 22ab, 22bb, 22cb connected to signal splitters 42a, 42b, 42c to carry a packet data stream. Such a cableless interface for the DUT 20 has the advantage of operating the DUT 20 in a more practical manner and avoiding the need to physically connect and disconnect the test cable DUT 20 of the DUT 20.

對熟悉本項領域者而言，在不背離本發明的範圍及精神，可顯而易見地在本發明的結構和操作方法中構思出各種其他修改及替換雖已經連同特定較佳實施例敘述本發明，應了解到主張權利範圍的本發明不應不當限制於這種特定實施例。吾人意欲以下列的專利申請範圍界定本發明的範圍，並藉此涵蓋屬於這些專利申請範圍內的結構與方法及其等效置換。 It will be apparent to those skilled in the art that various other modifications and substitutions may be made in the structure and method of operation of the present invention without departing from the scope of the invention. It should be understood that the invention as claimed is not intended to be limited to the particular embodiments. I intend to define the invention in the following patent application scope. The scope and the scope of the patent applications and their equivalent substitutions are covered by these patent applications.

10‧‧‧測試環境 10‧‧‧Test environment

22a、22b、22c‧‧‧天線埠 22a, 22b, 22c‧‧‧ antenna埠

30‧‧‧參考MIMO裝置 30‧‧‧Reference MIMO device

31‧‧‧信號路徑(纜線) 31‧‧‧Signal path (cable)

31a‧‧‧信號埠 31a‧‧‧Signal

40‧‧‧測試器 40‧‧‧Tester

50‧‧‧信號毀損電路 50‧‧‧Signal Damage Circuit

51‧‧‧信號路徑(纜線) 51‧‧‧Signal path (cable)

54‧‧‧控制電路 54‧‧‧Control circuit

55a、55b、55c‧‧‧控制信號 55a, 55b, 55c‧‧‧ control signals

Claims

一種測試一射頻(RF)多輸入多輸出(MIMO)封包資料信號收發器受測試裝置(DUT)之方法，其包含：建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊，其中N為一整數；以及維持該MIMO通訊鏈路，同時使該複數個N個DUT封包資料信號之一或多者之至少一部分毀損以提供含有該複數個N個資料串流的部分毀損之複數個N個DUT封包資料信號，用該測試收發器接收含有該複數個N個資料串流的該部分毀損之複數個N個DUT封包資料信號，並且回應於此，用該測試收發器無法及時提供該複數個測試封包資料信號之一相對應部分，以及繼該用該測試收發器無法及時提供該複數個測試封包資料信號之該相對應部分後，用該測試收發器接收含有複數個N-M個資料串流的該部分毀損之複數個N個DUT封包資料信號，其中M為一整數且0<N-M<N。 A method for testing a radio frequency (RF) multiple input multiple output (MIMO) packet data signal transceiver test device (DUT), comprising: constructing a MIMO communication link between a test transceiver and a DUT Transmitting, by using a plurality of N DUT packet data signals provided by the DUT for the test transceiver and a plurality of test packet data signals provided by the test transceiver for the DUT, wherein N is an integer; and maintaining The MIMO communication link simultaneously destroys at least a portion of one or more of the plurality of N DUT packet data signals to provide a plurality of N DUT packet data signals that are partially corrupted by the plurality of N data streams. Receiving, by the test transceiver, the plurality of N DUT packet data signals that are damaged by the plurality of N data streams, and in response thereto, the test transceiver cannot provide the plurality of test packet data signals in time a corresponding portion, and after the corresponding portion of the plurality of test packet data signals cannot be timely provided by the test transceiver, the test transceiver receives the complex A number N-M of the data stream portion of the plurality of N corrupted DUT packet data signal, where M is an integer and 0 <N-M <N.

如請求項1之方法，其中該複數個測試封包資料信號包含複數個N個測試封包資料信號。 The method of claim 1, wherein the plurality of test packet data signals comprise a plurality of N test packet data signals.

如請求項1之方法，其中該維持該MIMO通訊鏈路包含：持續維持該MIMO通訊鏈路。 The method of claim 1, wherein the maintaining the MIMO communication link comprises: maintaining the MIMO communication link continuously.

如請求項1之方法，其中該建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊包含：用該測試收發器傳輸複數個通訊鏈路初始封包資料信號作為該複數個測試封包資料信號；以及用該測試收發器接收來自該DUT之複數個N個通訊鏈路確認封包資料信號作為該複數個N個DUT封包資料信號。 The method of claim 1, wherein the MIMO communication link between the test transceiver and a DUT is configured to transmit a plurality of N DUT packet data signals provided by the DUT for the test transceiver. And communicating, by the test transceiver, the plurality of test packet data signals provided by the DUT, comprising: transmitting, by the test transceiver, a plurality of communication link initial packet data signals as the plurality of test packet data signals; and transmitting and receiving by using the test The device receives a plurality of N communication link confirmation packet data signals from the DUT as the plurality of N DUT packet data signals.

如請求項1之方法，其中該建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊包含：透過複數個N個傳導信號路徑載送至少該複數個N個DUT封包資料信號，該複數個N個傳導信號路徑之一或多者具有一可變信號傳導性。 The method of claim 1, wherein the MIMO communication link between the test transceiver and a DUT is configured to transmit a plurality of N DUT packet data signals provided by the DUT for the test transceiver. And communicating, by the test transceiver, the plurality of test packet data signals provided by the DUT, including: transmitting, by the plurality of N conductive signal paths, at least the plurality of N DUT packet data signals, the plurality of N conductive signal paths One or more have a variable signal conductivity.

如請求項1之方法，其中該使該複數個N個DUT封包資料信號之一或多者之至少一部分毀損以提供含有該複數個N個資料串流的部分毀損之複數個N個DUT封包資料信號包含：衰減該複數個N個DUT封包資料信號之一或多者之至少一部分。 The method of claim 1, wherein the at least a portion of one or more of the plurality of N DUT packet data signals are corrupted to provide a plurality of N DUT packet data containing the partial N data streams. The signal includes: attenuating at least a portion of one or more of the plurality of N DUT packet data signals.

如請求項1之方法，其中該使該複數個N個DUT封包資料信號之一或多者之至少一部分毀損以提供含有該複數個N個資料串流的部分毀損之複數個N個DUT封包資料信號包含：衰減該複數個N個DUT封包資料信號之至少一者之一後面部分。 The method of claim 1, wherein the at least a portion of one or more of the plurality of N DUT packet data signals are corrupted to provide a plurality of N DUT packet data containing the partial N data streams. The signal includes: attenuating a rear portion of at least one of the plurality of N DUT packet data signals.

如請求項1之方法，進一步包含：繼該用該測試收發器接收含有複數個N-M個資料串流的該部分毀損之複數個N個DUT封包資料信號後，用該測試收發器及時提供該複數個測試封包資料信號之一相對應部分。 The method of claim 1, further comprising: after receiving, by the test transceiver, the plurality of N DUT packet data signals that are damaged by the plurality of NM data streams, using the test transceiver to provide the complex number in time One of the test packet data signals corresponds to the corresponding part.

如請求項1之方法，進一步包含：繼該用該測試收發器接收含有複數個N-M個資料串流的該部分毀損之複數個N個DUT封包資料信號後，用該測試收發器及時提供複數個N個測試封包資料信號作為該複數個測試封包資料信號。 The method of claim 1, further comprising: after receiving, by the test transceiver, the plurality of N DUT packet data signals that are damaged by the plurality of NM data streams, using the test transceiver to provide a plurality of times in time N test packet data signals are used as the plurality of test packet data signals.

如請求項1之方法，進一步包含：監視該複數個DUT封包資料信號。 The method of claim 1, further comprising: monitoring the plurality of DUT packet data signals.

一種測試一射頻(RF)多輸入多輸出(MIMO)封包資料信號收發器受測試裝置(DUT)之方法，其包含：建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊，其中N為一整數，該複數個N個DUT封包資料信號之各者包含一或多個DUT資料封包，且該複數個測試封包資料信號之各者包含一或多個測試資料封包；以及維持該MIMO通訊鏈路，同時使該一或多個DUT資料封包之至少一者毀損以提供含有至少一個毀損之DUT資料封包且含有該複數個N個資料串流之該複數個N個DUT封包資料信號，用該測試收發器接收含有至少一個毀損之DUT資料封包且含有該複數個N個資料串流之該複數個N個DUT封包資料信號，並且回應於此，用該測試收發器無法及時提供該複數個測試封包資料信號之一或多個相對應部分，以及繼該用該測試收發器無法及時提供該複數個測試封包資料信號之該一或多個相對應部分後，用該測試收發器接收含有至少一個毀損之DUT資料封包且含有複數個N-M個資料串流之該複數個N個DUT封包資料信號，其中M為一整數且0<N-M<N。 A method for testing a radio frequency (RF) multiple input multiple output (MIMO) packet data signal transceiver test device (DUT), comprising: constructing a MIMO communication link between a test transceiver and a DUT And communicating by using a plurality of N DUT packet data signals provided by the DUT for the test transceiver and a plurality of test packet data signals provided by the test transceiver for the DUT, where N is an integer, the complex number Each of the N DUT packet data signals includes one or more DUT data packets, and each of the plurality of test packet data signals includes one or more test data packets; and maintaining the MIMO communication link while enabling the At least one of the one or more DUT data packets is corrupted to provide the plurality of N DUT packet data signals containing the at least one corrupted DUT data packet and containing the plurality of N data streams, the test transceiver receiving the content At least one damaged DUT data packet and Having the plurality of N DUT packet data signals of the plurality of N data streams, and in response thereto, the test transceiver is unable to provide one or more corresponding portions of the plurality of test packet data signals in time, and After the test transceiver is unable to provide the one or more corresponding portions of the plurality of test packet data signals in time, the test transceiver receives the DUT data packet containing at least one damage and includes a plurality of NM data strings. The plurality of N DUT packet data signals are streamed, where M is an integer and 0 < NM < N.

如請求項11之方法，其中該複數個測試封包資料信號包含複數個N個測試封包資料信號。 The method of claim 11, wherein the plurality of test packet data signals comprise a plurality of N test packet data signals.

如請求項11之方法，其中該維持該MIMO通訊鏈路包含：持續維持該MIMO通訊鏈路。 The method of claim 11, wherein the maintaining the MIMO communication link comprises: maintaining the MIMO communication link continuously.

如請求項11之方法，其中該建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊包含：用該測試收發器傳輸複數個通訊鏈路初始封包資料信號作為該複數個測試封包資料信號；以及用該測試收發器接收來自該DUT之複數個N個通訊鏈路確認封包資料信號作為該複數個N個DUT封包資料信號。 The method of claim 11, wherein the MIMO communication link between the test transceiver and a DUT is configured to transmit a plurality of N DUT packet data signals provided by the DUT for the test transceiver. And communicating, by the test transceiver, the plurality of test packet data signals provided by the DUT, comprising: transmitting, by the test transceiver, a plurality of communication link initial packet data signals as the plurality of test packet data signals; and transmitting and receiving by using the test The device receives a plurality of N communication link confirmation packet data signals from the DUT as the plurality of N DUT packet data signals.

如請求項11之方法，其中該建置介於一測試收發器與一DUT之間之一MIMO通訊鏈路，用以透過由該DUT針對該測試收發器提供的複數個N個DUT封包資料信號及由該測試收發器針對該DUT提供的複數個測試封包資料信號進行通訊包含：透過複數個N個傳導信號路徑載送至少該複數個N個DUT封包資料信號，該複數個N個傳導信號路徑之一或多者具有一可變信號傳導性。 The method of claim 11, wherein the MIMO communication link between the test transceiver and a DUT is configured to transmit a plurality of N DUT packet data signals provided by the DUT for the test transceiver. And the complex number provided by the test transceiver for the DUT Transmitting the test packet data signal includes: transmitting at least the plurality of N DUT packet data signals through the plurality of N conductive signal paths, and one or more of the plurality of N conductive signal paths have a variable signal conductivity .

如請求項11之方法，其中該使該一或多個DUT資料封包之至少一者毀損以提供含有至少一個毀損之DUT資料封包且含有該複數個N個資料串流之該複數個N個DUT封包資料信號包含：衰減該一或多個DUT資料封包之該至少一者之各者之至少一部分。 The method of claim 11, wherein the at least one of the one or more DUT data packets is corrupted to provide the plurality of N DUTs containing at least one corrupted DUT data packet and containing the plurality of N data streams The packet data signal includes attenuating at least a portion of each of the at least one of the one or more DUT data packets.

如請求項11之方法，其中該使該一或多個DUT資料封包之至少一者毀損以提供含有至少一個毀損之DUT資料封包且含有該複數個N個資料串流之該複數個N個DUT封包資料信號包含：衰減該一或多個DUT資料封包之該至少一者之各者之一後面部分。 The method of claim 11, wherein the at least one of the one or more DUT data packets is corrupted to provide the plurality of N DUTs containing at least one corrupted DUT data packet and containing the plurality of N data streams The packet data signal includes a portion of each of the at least one of the at least one of the one or more DUT data packets.

如請求項11之方法，進一步包含：繼該用該測試收發器接收含有至少一個毀損之DUT資料封包且含有複數個N-M個資料串流之該複數個N個DUT封包資料信號後，用該測試收發器及時提供該複數個測試封包資料信號之一相對應部分。 The method of claim 11, further comprising: after receiving the plurality of N DUT packet data signals containing the at least one corrupted DUT data packet and including the plurality of NM data streams, using the test transceiver The transceiver provides a corresponding portion of the plurality of test packet data signals in time.

如請求項11之方法，進一步包含：繼該用該測試收發器接收含有至少一個毀損之DUT資料封包且含有複數個N-M個資料串流之該複數個N個DUT封包資料信號後，用該測試收發器及時提供複數個N個測試封包資料信號作為該複數個測試封包資料信號。 The method of claim 11, further comprising: after receiving the plurality of N DUT packet data signals containing the at least one corrupted DUT data packet and including the plurality of NM data streams, using the test transceiver The transceiver provides a plurality of N test packet data signals in time as the plurality of test packet data signals.

如請求項11之方法，進一步包含：監視該複數個DUT封包資料信號。 The method of claim 11, further comprising: monitoring the plurality of DUT packet data signals.