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【速搜问答】WUSB是什么

问答 admin 1个月前 (01-16) 28次浏览 已收录 0个评论

汉英对照:
Chinese-English Translation:

WUSB,即无线USB,是2004 英特尔春季技术峰会提出的一个全新无线传输标准。WUSB产品的优良表现和良好的移动性。WUSB有传输速度快,10米内范围无线传送,耗电量低于蓝牙等特点。

WUSB, namely wireless USB, is a new wireless transmission standard proposed by Intel spring 2004 technology summit. Excellent performance and good mobility of WUSB products. WUSB has the characteristics of high transmission speed, wireless transmission within 10 meters and lower power consumption than Bluetooth.

WUSB,即无线 USB,是 2004 英特尔春季技术峰会提出的一个全新无线传输标准。Intel 公司的技术部门经理,WUSB 技术白皮书的制订者 Rafael Kolic 曾这样介绍这项技术,以及 WUSB 产品的优良表现和良好的移动性。WUSB 有传输速度快,10 米内范围无线传送,耗电量低于蓝牙等特点。

WUSB, namely wireless USB, is a new wireless transmission standard proposed by Intel spring 2004 technology summit. Rafael kolic, manager of Intel’s technology department and creator of white paper on WUSB technology, once introduced this technology, as well as the excellent performance and good mobility of WUSB products. WUSB has the characteristics of high transmission speed, wireless transmission within 10 meters and lower power consumption than Bluetooth.

WUSB

WUSB

电脑方面必须注意无线 USB(简称 WUSB)的广泛应用,WUSB 传输速度达每秒 480MB,媲美 USB 2.0,而且可在 10 米内的范围无线传送,耗电量低于蓝牙,各大电脑生产商已将 WUSB 融入 2007 年推出的新产品中。

In terms of computers, we must pay attention to the wide application of wireless USB (hereinafter referred to as WUSB). The transmission speed of WUSB is 480MB per second, comparable to USB 2.0, and it can transmit wirelessly within 10 meters. The power consumption is lower than that of Bluetooth. Major computer manufacturers have integrated WUSB into the new products launched in 2007.

总观:无线的 USB(WUSB)

Overview: wireless USB (WUSB)

首先,我们来想像一下,如果一个家庭的所有装置,比如:打印机,扫描机,外接硬盘和数码相机等等,都将没有任何的电线直接连接到你电脑上。再来想像一下,如果整个的家庭娱乐中心的所有附件都将不需要一根电线就能够连接。或者,我们再想像一下,如果数码照片不需要电线就可以接到照片打印机上,这该是多么方便、多么美好的事情。然而,这些只是无线 USB (WUSB) 良好连接性的几个小侧面,因为最新的技术发展将会给各种设备带来更大的便捷和移动性(包括市区和郊区)。

First of all, let’s imagine that all the devices in a family, such as printers, scanners, external hard disks and digital cameras, will not have any wires directly connected to your computer. Imagine if all the accessories of the entire home entertainment center could be connected without a single wire. Or, let’s think about how convenient and wonderful it would be if digital photos could be connected to a photo printer without wires. However, these are just a few small aspects of the good connectivity of wireless USB (WUSB), because the latest technology development will bring greater convenience and mobility to all kinds of devices (including urban and rural areas).

目前,USB 技术已经成为 PC 间普遍流行的技术标准,而且也逐渐被用到消费电子,移动终端中。现在,WUSB 这个高速有效的连接接口的诞生是为了消去电缆的负担,以加强 USB 所不具有的功能。

At present, USB technology has become a popular technical standard among PCs, and it is also gradually used in consumer electronics and mobile terminals. Now, the birth of WUSB, a high-speed and effective connection interface, is to eliminate the burden of cable and strengthen the functions that USB does not have.

无线 USB 促进联盟(Wireless USB Promoter Group)

Wireless USB promoter group

2004 年春季 Intel 技术峰会(美国)上,无线 USB 促进联盟宣布成立。这个联盟包括 7 家有相当实力的业界巨擎:Agere Systems,惠普,英特尔,微软,NEC,飞利浦半导体和韩国三星。这个联盟的每个成员都被授权可以制订 WUSB 的详细规格。在详细规格上,已经达成共识的是每秒 480Mb 的传输速率,这一规格和有线的 USB 2.0 设备间高速传输规格维持一致。从这方面来看, WUSB 技术在很多方面都可以从比较成熟的高速 USB 上移植过来。

At the Intel Technology Summit (USA) in the spring of 2004, the wireless USB promotion alliance was announced. The alliance includes seven powerful industry giants: Agere systems, HP, Intel, Microsoft, NEC, Philips semiconductor and Samsung. Each member of the alliance is authorized to develop detailed specifications for WUSB. In terms of detailed specifications, a consensus has been reached that the transmission rate is 480MB per second, which is consistent with the high-speed transmission specification between wired USB 2.0 devices. From this point of view, WUSB technology can be transplanted from mature high-speed USB in many aspects.

另外,WUSB 技术在技术规格的制订上,也会依靠 MBOA 联盟和 WiMedia 联盟。这是两个开放的技术联盟,将会使 WUSB 技术在网络环境中,个人在多媒体设备间的无线交流的连通性和协同性加强。

In addition, the formulation of technical specifications for WUSB technology will also rely on MBOA alliance and Wimedia alliance. These two open technology alliances will enhance the connectivity and collaboration of wireless communication between personal multimedia devices in the network environment.

最近 Intel 在非正式的场合宣布:到 2005 年年底,蓝牙(Bluetooth)技术完全会被淘汰,蓝牙那时会成为一种过时的、无生命力的通讯技术;届时取代蓝牙的将会是一种新型的无线 USB 标准,即 WUSB。

Recently, Intel announced on an informal occasion: by the end of 2005, Bluetooth technology will be completely eliminated, and Bluetooth will become an outdated and lifeless communication technology; at that time, a new wireless USB standard, namely WUSB, will replace Bluetooth.

蓝牙之死

The death of Bluetooth

作为蓝牙技术的终结者和替代品,Intel 认为 WUSB 能够比蓝牙提供更快的传输速率、更高的稳定性。而且 WUSB 并不是 802.11 中的标准,它能覆盖近距离 WiFi 技术无法实现的通讯,例如音频和视频在数码相机和 PC 之间无线高速的传输等。

As the terminator and substitute of Bluetooth technology, Intel believes that WUSB can provide faster transmission rate and higher stability than Bluetooth. Moreover, WUSB is not the standard of 802.11, it can cover the communication that can not be realized by short-range WiFi technology, such as the wireless high-speed transmission of audio and video between digital camera and PC.

按技术原理来讲,蓝牙和 WUSB 均属于小范围的个人网络通讯。最初,蓝牙依靠通讯质量和速度打败了红外线传输技术。但是随着人们日益增加的通讯速度要求,12Mbps 的蓝牙通讯速度逐渐不能胜任多媒体、宽带等各项应用;而覆盖范围达到 2 米、通讯速率达 480Mbps 的 WUSB 正在展现实力。

According to the technical principle, Bluetooth and WUSB belong to a small range of personal network communication. At first, Bluetooth beat infrared transmission technology by communication quality and speed. However, with the increasing demand of communication speed, the Bluetooth communication speed of 12mbps is not suitable for multimedia, broadband and other applications, while the WUSB with coverage of 2M and communication speed of 480mbps is showing its strength.

前几年火热的蓝牙技术最终会在 2005 年消失吗?蓝牙的命运最终将如何呢?

Will Bluetooth technology disappear in 2005? What’s the fate of Bluetooth?

近几年,蓝牙技术逐渐在 PDA、笔记本电脑和 Tablet PC 中普及起来;但是蓝牙最大的问题不仅仅是传输的速度,而是和市场的普及程度息息相关。蓝牙技术早在几年前就已经成熟,但是由于市场的普及率低和较高的价格使得消费者少有问津。

In recent years, Bluetooth technology is gradually popularized in PDA, notebook computer and tablet PC; but the biggest problem of Bluetooth is not only the transmission speed, but also closely related to the popularity of the market. Bluetooth technology has been mature as early as a few years ago, but due to the low penetration rate and high price of the market, consumers are less interested.

这样的恶性循环最终将导致蓝牙技术的淘汰。蓝牙最终会何去何从?2005 年底,蓝牙是否真会像 Intel 预言那样从市场上消失?这一切都取决于本文的主角——WUSB 技术。

This vicious circle will eventually lead to the elimination of Bluetooth technology. Where will Bluetooth go? At the end of 2005, will Bluetooth disappear from the market as predicted by Intel? It all depends on the protagonist of this article – WUSB technology.

WUSB 技术

WUSB Technology

假设办公室中的所有打印机、扫描仪、外部硬盘、数码相机都可以和 PC 以无线方式进行连接;家里的电视机、音箱等娱乐设备无需电缆的连接就可以直接使用,那将该多好啊!

Suppose that all printers, scanners, external hard disks and digital cameras in the office can be connected to the PC wirelessly; TV sets, speakers and other entertainment devices in the home can be used directly without cable connection!

以上这些正是 WUSB(无线 USB)技术最终能带给我们的应用,WUSB 的诞生就是为了向个人、小型网络提供高速、方便的无线联网环境。

These are the applications that WUSB (wireless USB) technology can finally bring us. The birth of WUSB is to provide a high-speed and convenient wireless networking environment for personal and small networks.

这几年来,USB 技术在 PC 中得到了广泛的应用,并且已经成为了 PC 标准接口之一,同时 USB 在个人电子产品和移动设备中也发挥了不小的作用。为了连线的方便,原先位于机箱背部的 USB 接口也逐渐转移到面板前方,但是 USB 线的长短和连接的过程有时会给用户带来不便。因此,下一代的 USB 技术—— WUSB,希望能够摆脱电缆的羁绊,同时保持高速稳定的传输速度。USB 论坛也专门针对 WUSB 成立了 USB Promoter 小组,制定相关标准。

In recent years, USB technology has been widely used in PC, and has become one of the PC standard interfaces. At the same time, USB also plays an important role in personal electronic products and mobile devices. For the convenience of connection, the original USB interface on the back of the chassis is gradually transferred to the front of the panel, but the length of the USB cable and the connection process sometimes bring inconvenience to users. Therefore, the next generation of USB technology, WUSB, hopes to get rid of the shackles of cable, while maintaining high-speed and stable transmission speed. The USB forum also set up a USB promoter group specifically for WUSB to formulate relevant standards.

小资料

facts on file

在今年春季的 2004 IDF 论坛上,Wireless USB Promoter 小组正式成立。其中成员主要是 7 位业界巨头:Agere Systems、惠普、Intel、微软、NEC、飞利浦半导体公司和三星电子。

At the 2004 IDF forum this spring, the wireless USB promoter group was officially established. Its members are mainly seven industry giants: Agere systems, HP, Intel, Microsoft, NEC, Philips semiconductor and Samsung Electronics.

到目前为止,USB Promoter 小组已经定义了 WUSB 传输带宽为 480Mbps,和传统的 USB 使用相同的架构以及高速的“主机←→设备”的连接方式。在这些现有标准的前提下,各厂商很容易就能将有线的 USB 设备升级到 WUSB。

So far, the USB promoter team has defined that the transmission bandwidth of WUSB is 480mbps, which uses the same architecture as traditional USB and the high-speed “host ← → device” connection mode. Under the premise of these existing standards, manufacturers can easily upgrade wired USB devices to WUSB.

除了硬件设计的架构和标准之外,在 MBOA 和 WiMedia 联盟的努力下,WUSB 还指定了专门的 Ultra Wideband(UWB)通讯频谱,方便多媒体设备在个人网络的范围内交互通讯。

In addition to the architecture and standards of hardware design, with the efforts of MBOA and Wimedia alliance, WUSB also specifies a special ultra wideband (UWB) communication spectrum to facilitate the interactive communication of multimedia devices in the range of personal network.

WUSB 拓扑结构及应用

The topology and application of WUSB

WUSB 技术最基本的拓扑结构就是需要一个 WUSB 主机和相应的通讯设备,位于中心的 WUSB 主机初始化所有相连接设备的传输速率,并且分配给相应的通讯通道和带宽。这样的主机和通讯设备之间的关系被称为“簇”。

The most basic topology of WUSB technology is that it needs a WUSB host and corresponding communication devices. The WUSB host in the center initializes the transmission rate of all connected devices and allocates them to corresponding communication channels and bandwidth. Such a relationship between host and communication device is called “cluster”.

理论上说,在一个簇内,WUSB 主机最多能够连接 127 个 WUSB 设备,当然簇与簇之间能够覆盖和叠加,如果相邻的两个簇想要相互通讯的话,那么必须工作在相同的频谱上。除此之外, WUSB 拓扑结构还支持“双角色”模式,在此模式中,一台 WUSB 主机可以成为两个“簇”的主控中心,两个簇的 WUSB 设备都通过这一台 WUSB 主机进行通讯。目前在 WUSB 通讯环境中,“簇”的最大容纳数量还在制定中。

Theoretically, in a cluster, the WUSB host can connect up to 127 WUSB devices. Of course, clusters can be covered and overlapped. If two adjacent clusters want to communicate with each other, they must work on the same spectrum. In addition, the WUSB topology also supports the “dual role” mode. In this mode, a WUSB host can become the main control center of two clusters, and the WUSB devices of two clusters communicate through this WUSB host. At present, in the WUSB communication environment, the maximum number of “clusters” is still being worked out.

在 WUSB 研发的过程中,除了提供无线的连接之外,还考虑到向下兼容现有的有线 USB 设备,而且簇之间能够方便地交换数据。为了不重导蓝牙的覆辙,WUSB 的成本高低也是其能否成功的一个关键因素。毕竟价格低廉、方便实施已经成为 IT 业的一个不成文的标准。

In the research and development of WUSB, in addition to providing wireless connection, we also consider the downward compatibility with existing wired USB devices, and the cluster can easily exchange data. In order not to retransmit Bluetooth, the cost of WUSB is also a key factor for its success. After all, low price and convenient implementation has become an unwritten standard of IT industry.

目前,WUSB 技术足以提供现有有线 USB 通讯的足够带宽。第一代的 WUSB 相当于现有 USB 2.0 的传输标准(480Mbps),在今后 WUSB 发展中,会逐步提高传输的带宽,最终超越 1Gbps。

At present, WUSB technology can provide enough bandwidth for existing wired USB communication. The first generation of WUSB is equivalent to the existing USB 2.0 transmission standard (480mbps). In the future development of WUSB, it will gradually improve the transmission bandwidth and eventually surpass 1Gbps.

随着数字多媒体技术的成熟,消费电子设备(CE)和移动通讯环境的完善,这都为 WUSB 提供了良好的发展环境,WUSB 很有可能成为能够连接三个领域的一种标准互连方式

With the maturity of digital multimedia technology, the improvement of consumer electronic devices (CE) and mobile communication environment, which provides a good development environment for WUSB, WUSB is likely to become a standard interconnection way to connect the three fields

而且 WUSB 和 USB 具备相同的安全等级,连接的设备身份必须得到确认后才能进行相关操作的,在数据的通讯过程中还可以使用更高安全级加密算法。

Moreover, WUSB and USB have the same security level, and the connected device identity must be confirmed before relevant operations can be carried out. In the process of data communication, a higher security level encryption algorithm can be used.

总 结

Summary

无线网络发展和应用似乎逐渐成为“后互联网”时代的一个专有名词,从蓝牙、WiFi、WAPI 到 WiMax,一切都围绕着无线网络在发展。

It seems that the development and application of wireless network has gradually become a proper term in the “Post Internet” era. From Bluetooth, WiFi, WAPI to WiMAX, everything revolves around the development of wireless network.

“更广,更快,更稳定,更便捷”成为无线网络的金科玉律,蓝牙之死也将是 IT 界强大生命力的体现。除了某些蓝牙技术开发商之外,我们似乎没有必要为蓝牙的最终命运感到悲哀。“适者生存”是 IT 业界不变的发展规律,而且不断的变化最终会给我们用户带来一个崭新的无线世界。

“Wider, faster, more stable and more convenient” has become the golden rule of wireless network, and the death of Bluetooth will also reflect the strong vitality of IT industry. Except for some developers of Bluetooth technology, it seems that there is no need for us to feel sad about the ultimate fate of Bluetooth. “Survival of the fittest” is the unchangeable development law of IT industry, and constant changes will eventually bring us a new wireless world.

WUSB 技术前瞻

Outlook of WUSB Technology

Wireless USB,今年刚制定的标准,还在推广期,实际上我搜了一下,WUSB 的芯片都还没上市,我个人比较期待 USB-IF 的核心成员之一 PHILPS 尽快推出好让我们见识见识

Wireless USB, the standard just formulated this year, is still in the promotion period. In fact, I searched it and found that none of the chips of WUSB has been put on the market yet. I personally hope that Philips, one of the core members of usb-if, will be launched as soon as possible so that we can have a good experience

一些 WUSB 的主要特性

Some of the main features of WUSB

1. 速率:

1. Speed:

3 米内 480Mb/s = wired usb 2.0 High-speed, 非常可观!

480MB / s within 3M = wired USB 2.0 high speed, very impressive!

3-10 米内 110Mb/s

110mb / s within 3-10m

2. Backward compatibility and seamless legacy support //估计会出个 USB STANDARD to WUSB 的转接器

2. Backward compatibility and seamless legacy support / / it is estimated that there will be a USB standard to WUSB adapter

3. WUSB Duel-Role device

3. WUSB Duel-Role device

– limited host and device capabilites

– limited host and device capabilites

– similar to OTG

– similar to OTG

//其实现在的 OTG 根本没市场,操作麻烦,对传统设备的兼容性非常之勉强。WUSB 出来后就是整个 USB 市场重新洗牌了,DUEL-ROLE 一步到位

//In fact, there is no market for OTG at all. It is troublesome to operate, and the compatibility of traditional devices is very poor. After WUSB came out, the whole USB market was reshuffled, and duel-role was in place in one step

4. Power Management

4. Power Management

-The power target for WUSB radio will be less than 300mW at introduction and drive to a target of 100mW over time

-The power target for WUSB radio will be less than 300mW at introduction and drive to a target of 100mW over time

-The radio will sleep when possible and wake upon request

-The radio will sleep when possible and wake upon request

//没有 POWER MGR 就失去了掌上终端的市场,这点上 WUSB 是很清楚的

//Without power, Mgr will lose the market of handheld terminal. WUSB is very clear about this

5. 一个 WUSB HOST 可以接入理论最多 128 个 WUSB CLIENT, HUB 都省了

5. A WUSB host can access 128 WUSB clients at most, which saves hub

//是好事也是坏事, 黑客们又有新课题了.

//It’s a good thing and a bad thing. Hackers have a new topic


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