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Opportunities, Challenges and Directions of Bluetooth [Copy link]

短距无线蓝芽技术已广泛嵌入至多种消费装置中,从手机、笔记型电脑、PDA到汽车,都可看到相关应用,而一般认为手机为带动蓝芽成长的最大动力。根据市场研究机构IC Insights近期公佈的报告指出,以Wi-Fi、蓝芽(Bluetooth)为主的无线网路晶片成为2005年IC市场的亮点,蓝芽市场规模预计由2004年的5.8亿美元,在2008年时成长为15亿美元,ASP将为2002年的四分之一,而蓝芽晶片的ASP持续下滑将有助于更广泛的应用。工研院经资中心研究也预估,至2008年手机内建蓝芽比例将达60%。

Although the market momentum is strong, for Taiwanese manufacturers, most of the chips for key components still rely on foreign manufacturers, which makes it impossible to effectively reduce costs and has limited gross profits. Chuangjie Technology, a domestic manufacturer focusing on wireless communication technology, is optimistic about this demand and niche. It has successfully developed wireless Bluetooth chips on its own, breaking through the bottleneck of Bluetooth chip self-production capabilities in Taiwan's Bluetooth industry chain and providing system manufacturers with a more cost-effective option. How did Chuangjie Technology do it? What do you think of the application and development of Bluetooth technology?

筑梦蓝芽 六年有成
「六年前, 从美国到台湾,开始了这段华人的蓝芽筑梦之路。」从事通讯半导体从汽车通讯、手机晶片、人造卫星通讯十余年经歷、身兼创杰科技创始人与技术总监角色的陈逸萍博士娓娓道来。

1999年创立于硅谷ALinks Communications,在该年底即完成第一版Bluetooth Base Band FPGA Demo System开发技术,2000年和新竹的创杰科技合併并进行跨国技术研究。其自行研发的蓝芽基频技术(ISSC BT001 Bluetooth Base Band Link Controller Manager Protocol)在2001年12月荣获全台湾首家蓝芽无线通讯IP之Bluetooth“BQB”认证。而后2003年获得国家计画补助研究的抗干扰技术,并获选为蓝芽标准之一。

Looking back to the year 2000, the market was optimistic about the development of 802.11x wireless LAN chips, but not very optimistic about Bluetooth. It was not until major mobile phone manufacturers Ericsson, Motorola, and Nokia installed Bluetooth devices in their high-end mobile phones, and more than a thousand manufacturers invested in related product research and development, that the shipment of Bluetooth system products increased by 130% in 2003, and the Bluetooth market gradually showed signs of recovery.

Mobile applications continue to promote the growth of Bluetooth. With the improvement of transmission data volume, interference problems and interoperability in versions 1.1, 1.2 and 2.0, Bluetooth technology has gradually overcome its slump and become an interface for intercommunication with headsets, phones and PCs. Chuangjie's Bluetooth dream began with hard work and self-expectation to become the most cost-effective chip solution provider.

"Although chip manufacturers' investment and competition have caused chip prices to continue to decline, and Bluetooth wireless communication functions have begun to be transferred to more information and communication products with lower unit prices, most chips and IPs still rely on foreign manufacturers. For domestic system manufacturers, there is still limited room for cost reduction." Chen Yiping said.

于是创杰科技决定採用低成本微控制器架构,提供较其他竞争者低价及低研发成本等优势的解决方案,包括基频IC、IP授权、通讯协定授权以及系统应用方案等,可用于滑鼠、键盘、耳机、印表机以及GPS等产品;此外,创杰自有硬体与韧体开发技术与专利,所以不会向系统厂商索取高昂的技术服务费。「创杰最熟悉台湾与大陆系统厂商的需求与问题,因为我们在同一个环境中奋斗。」陈逸萍并表示,「能有此成绩还是要归功于我们合作无间的 ”Total Solution” 团队。」

The rapid development of technologies such as Bluetooth + UWB
Wi-Fi has made the wireless industry more complex and has also made market forecasts inaccurate. The Bluetooth 2.0 standard, which was approved by the Bluetooth SIG at the end of 2004, has a new EDR (Enhanced Data Rate) function that can increase the maximum transmission rate to 3Mbps per second, expanding the application of Bluetooth: for example, supporting the signal transmission requirements of 5.1 surround sound systems, and being used in laser printers, etc., giving Bluetooth a broader stage in the field of home entertainment.

而2005年5月4日,蓝芽小组又宣佈将与(Ultrawideband Forum和WiMedia Alliance联手开发整合蓝芽和UWB的下一个新标准。此一决定有效扩展了蓝芽的应用版图,一下子将蓝芽现在的传输速度由每秒3Mbps,增加到100Mbps以上或甚至更高,一方面满足高速同步化与大量资料传输需求,同时也使可携式装置具备高品质影像应用功能。原本UWB技术被预期到了2006年时将在高频宽需求市场直接挑战蓝芽技术,现在两者则成为技术整合的典范。

However, Chen Yiping pointed out that the integration of Bluetooth and UWB, in addition to the new architecture not being fully defined, still has some difficulties to be resolved. For UWB, since only the United States has approved the frequency band resources in the world, governments in Europe, Asia and other large markets do not have clear attitudes and policies, and Bluetooth itself is bound to encounter interoperability issues with legacy products.

陈逸萍表示,蓝芽整合UWB新标准将使得蓝芽技术门槛升高,而创杰十分熟悉OFDM(Orthogonal Frequency Division Multiplexing)高效率的多通道调变解调变技术,一旦新标准确认后,创杰科技可以加上UWB模组,在最短的时间内推出对应解决方案。但目前仍将重心放在蓝芽2.0标准产品的发展,分别从手机导向与PC导向两方面着手开发更多的应用:如蓝芽Dongle、蓝芽耳机、蓝芽与无线网路的双模功能以及蓝芽手机等。其EDR产品则预计明年有好的展穫。

突破四个瓶颈? 走向下一个SoC or System DIY
观察目前无线技术市场的发展空间以及竞争日益剧烈的未来,无线网路IC厂商的淘汰赛与购併风潮仍将持续,有些厂商亦可能逐渐淡出市场,而台湾IC设计厂商在这一场战争中,将愈来愈有机会以扮演低成本解决方案的提供者来佔有一席之地。而蓝芽晶片近年来令人瞩目的突出的表现,甚至让研究单位预测其有机会在2008年与802.11并驾齐驱,那么台湾厂商该如何掌握这个庞大的商机?

Chen Yi-ping said that since Taiwan is relatively weak in algorithm and architecture technology, it is mostly unable to participate in the formulation of standards. Therefore, if it can actively participate in exchanges with international manufacturers, attach importance to the cultivation of talents, and add policies to support industry promotion plans, it will greatly increase opportunities. Manufacturers must also break through four bottlenecks when developing Bluetooth products: reduce power consumption, strengthen embedded software development capabilities, reduce interface differentiation, and the price of chips must be further reduced to stimulate greater market potential. Of course, if Bluetooth can move from "System on a Chip" to "Software on a Chip" in the future, the development space will be broader, and the DIY era of Bluetooth in various systems will come.

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This post is from RF/Wirelessly
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