Wi-Fi technology has now been used for almost all laptops and smart phones and the Internet, game equipment. Telephone, audio player, printer, set-top boxes and other consumer electronic equipment to Wi-Fi technology of acceptance is growing, from Wi-Fi alliance and several research agency data confirm this market growth trend.

  According to ABI Research reported that in 2010 the Wi-Fi products increased to 761 million department, was 29% higher than in 2009, to 2015 is expected to more than 2 billion department. Wi-Fi equipment the continuous growth of the number of authentication also reflects the Wi-Fi product growth trend. 2010 is the Wi-Fi Alliance the authentication the most number of a year, a year in which get Wi-Fi CERTIFIED the authentication of the amount of products was 62% higher than in 2009.

  With the mobile Internet and the popularity of smart phones, all kinds of mobile Internet application in to operators have mass data flow and great income, but also test the bearing capacity of the network operators. In 2011, in the three largest operators in the wireless networks capital expenditure year-on-year growth of 6.71%, construction point for network optimization and depth coverage. Among them, about wireless local area network (WLAN) between the darkness and more obvious.

  The Chinese government has become the WLAN construction of city landmark deploy wireless project. Since this year, China mobile, China telecom and China unicom all have launched large-scale WLAN equipment procurement and construction to deploy. China mobile to take the lead in this year puts forward the future three years built 1 million Wi-Fi hot goal. According to not complete count, at present China moving across the Wi-Fi hot has reached 120000. China telecom issued its "wireless China" strategy also says, plan in 2012 to build millions a Wi-Fi hot, expected by the end of 2011 to 700000.

  In fact, the operator push the main power Wi-Fi it is from data services pressures. Especially for "60% of mobile voice/data flow and 80% of 3 G data flow in the room of transmission, including office, family and bus station" of Chinese market terms is even more so. Therefore, in this kind of environment, mobility, low cost, high construction speed of WLAN network can effectively to mobile data have tap, the burden role. In the mobile network construction at the same time cooperate WLAN deployment, to share the load of WLAN mobile network pressure, realize the 3 G network + WLAN nets "seamless connection" experience, has become the operators of the current standard scheme arrangement.

  "It will not be long before, through the form of the city to cover the entire seamless high-speed broadband network, Beijing may will become the world's largest wireless city." Broadcom (Broadcom) company senior vice President and general manager of the wireless local area network (Michael Hurlston describes the future wireless city scene. "Once the Wi-Fi become wireless city basis, and the convenience in addition to load, unload the cellular network ascension user experience, but also to realize is that the wireless technology the combination of a variety of applications, intelligent power grid, the physical networking and positioning is a good example."
 

Wi-Fi CERTIFIED n is becoming the mainstream

  In the Wi-Fi alliance and In-stat written jointly In the white paper, Wi-Fi CERTIFIED n importance is mentioned an all-time high. The article argues that, more space flow, 40 MHz channel and the key is to realize efficient mechanism Wi-Fi CERTIFIED n coverage and flow of the key factors in the improvement. For example, many space flow allows the data flow separation for multiple branch transmitted, so helpful to improve the transmission performance; 40 MHz channel 5 GHz band in operation in allowing each packet transmission more data, so it can improve the data rate; And including polymerization, efficient mechanism can reduce the overall management cost and improve the transmission efficiency, so as to raise the flow to make direct contributions.
 

  In addition, lead to Wi-Fi n technology application become mainstream factors besides coverage and the flow, this paper also specifically mentioned two other "infrastructure" : WPA2 (Wi-Fi Protected Access 2) security and WMM (Wi-Fi Multimedia). The former using AES encryption standard senior, and use the sharing Key pre-alpha-Shared Key and IEEE 802.1 X/EAP provide mutual authentication; The latter is a QoS mechanism, and support the transmission voice and video priority to ensure user performance sensitive type application in get outstanding user experience.
 

  Marvell company senior product manager zhang lu4 think, people for the rich flow of the network media and convenient access needs to promote the high speed wireless broadband connections demand. Includes video, social network, online games and the rise of wireless connections equipment is the embodiment of the demand, and 802.11 n is meet this demand of important step.
 

  "Interoperability is Wi-Fi technology is the key of mass." Zhang lu4 added, Wi-Fi union certification ensures the any OEM production equipment and other equipment and can match. That way, users buy the product in the application of more choice. Therefore produce market competition to promote the enterprise innovation, improve the technology and products.
 

How will the next?

  In Wi-Fi industry, now of the innovation than any time before the momentum. Michael Hurlston said, Wi-Fi for consumer and enterprise users with a faster connection, higher throughput and the latest safety, these innovations will through the new market of new applications and equipment, higher performance technology in the new band range innovation communications.

  Wi-Fi CERTIFIED Wi-Fi Direct: the peer-to-peer Wi-Fi Alliance the authentication program in any place equipment can be directly connected to each other-don't even need to be Wi-Fi network, hot spots or Internet connections. So the mobile phone, camera, printer, PC, keyboard and headphones will be able to connect to each other, and quick easy transmission content and sharing application.
 

  60 GHz: another coming soon Wi-Fi Alliance the authentication program to support 60 GHz band of Wi-Fi operation, make the future of consumer electronic equipment to GB per second level of connection speed, not today the speed of the level MB per second. Broadcom company will define such application for the "deep embedded technology", its potential application field will include intelligent power grid, home appliances, safety and house home monitoring, medical monitoring, man-machine interface of equipment (HID), etc.

  In 802.11 a/b/g/n standard continuously break higher coverage and data transfer rate at the same time, the new standards such as 802.11 ac, 802.11 AD, etc are coming to the forefront. And 802.11 n 600 Mbps compared the flow, ac and AD to flow up to 3.2 Gbps respectively, and 6.7 Gbps, frequency range were 5.15 GHz 5.9 GHz and 57 GHz-66 GHz. From the perspective of application, ac will in the whole household more indoor positioning of the multimedia content sharing; And the AD because the transmission distance is limited, for a single bedroom, uncompressed hd video of short transmission, that may be a replacement for HDMI standard.

  Low power consumption Combo IC: zhang lu4 to reporters insisted, "highly integrated, low consumption and high performance" is Marvell WLAN product advantage. "This year we the launch of new Avastar 88 W8787 integrated chip, in a single chip and integration of the WLAN, bluetooth and FM radio transceiver function, and it is a small amount of external devices. Meanwhile, Marvell technology of the low power consumption can make products have a longer life ability. In deep sleep mode, we can be low to the chip power consumption 40 uA."

  In addition, Marvell is still in development advanced algorithm WLAN field, including multiple antenna technology (MIMO) and beam forming technology. Marvell aspects revealed that, in addition to have support MIMO 2 x2, 3 x3 and 4 x4 technology of the product, the company also introduced the WLAN product line for the beam forming technology. This technology can greatly enhance radio reception performance, thus will Wi-Fi signal coverage expansion to the two to four times before, and customers upgrading connection stabilization.

 Depth embedded technology challenges "from the brunt of low power consumption demand." Michael said, in addition to the low power consumption, other challenges include how to effectively improve battery life, improve the software and embedded processor performance, and narrow product volume etc. All these need manufacturers in the process technology update and integration, and circuit design had a breakthrough. And, of course, can never avoid, and is to lower the cost of market demand.
 

  Michael says, broadcom latest solution will more for smart phones and tablet WLAN, computer and digital TV sets, playstation and other products, such as support, IEEE802.11 n WAPI standard, in order to achieve maximum coverage. "We BCM4329 low power consumption is one of the most successful chip, the chip as most smart phones on the market and tablet computer key technologies, for we create the nearly $1 billion in income." He said.
 

  The latest BCM4325 is also worth mentioning. The chip integrated the Wi-Fi and Bluetooth, in order to make a wide variety of wireless equipment can mutual recognition and seamless communication. In addition, broadcom also and China access point market leading company tengda technology (TENDA) established cooperative relations, to provide the infrastructure solutions. This kind of access solutions often used in metro applications.