Tuesday, November 09, 2004 10:15:03 PM
Nov. 09, 2004
http://www.linuxdevices.com/news/NS8901223473.html
China's government-owned TEM (telecommunications equipment manufacturer) has revealed details of its forthcoming 3G Linux mobile phone reference design, expected to appear in products in mid-2005. Datang's Linux phone design works with network equipment based on TD-SCDMA, a 3G technology largely invented by Datang, and which may see use outside China.
Datang first announced it had adopted Linux for its 3G mobile phone design in July of this year.
The phone
The Datang mobile phone solution is a TD-SCDMA LCR (least-cost routing) handset based on a Texas Instruments OMAP1510 processor running a Qtopia-Linux platform. It will support telephony, video telephony, an Internet browser, MMS, WAP, a media player, and other typical 3G functionality, according to Qtopia supplier Trolltech.
The TI OMAP1510 is a venerable dual-core RISC/DSP SoC (system-on-chip) supported by Linux as early as March of 2001. It includes an ARM925 core alongside a TMS320CSSx DSP core. Integrated peripherals include USB (client and host), camera interface, memory stick/MMC-SD interface, and UARTs for data and modem control, as well as GPS and IrDA. The chip specifically targets 2.5 and 3G wireless handsets and PDAs.
TI OMAP1510 block diagram
(Click to enlarge)
Software side
According to Trolltech, the Datang design will be based on the Qtopia Phone Edition (QPE) application stack. Trolltech announced a port of QPE to TI's OMAP platform in September.
The Datang Linux phone reference design may also include a Linux kernel sourced from MontaVista, which listed Datang Mobile among its customers in a February announcement, and which has supplied Linux to other phone vendors, including Motorola.
Datang has also confirmed that the design will include the Opera web browser.
TD-SCDMA
Datang's Linux mobile phone reference design, like its networking equipment, is based on TD-SCDMA, one of three 3G technologies based on CDMA, which Datang pioneered and which may also see deployment in Europe and elsewhere. The TD-SCDMA Standard is overseen by the TD-SCDMA Forum, an industry group founded in late 2002 by China Mobile, China Telecom, China Unicom, Datang, Huawei, Motorola, Nortel, and Siemens.
Availability
According to Trolltech, Datang's 3G Linux phone reference design has demonstrated excellent performance in multi-phase testing conducted by the Chinese Ministry of Information Industry's (MII's) MTNet lab, and commercial phones based on the design are expected in China in the first half of 2005. Datang expects to promote the design broadly to the wireless industry.
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