By Samuel C. Yang
CDMA2000 is of serious curiosity to instant communications execs simply because this 3G (third iteration) normal presents for swifter facts charges, always-on info carrier, and more suitable voice community means. Breaking down complicated know-how into easy-to-understand thoughts, this hands-on, system-level source bargains RF (radio frequency) and instant approach engineers specialist assistance in designing, optimizing, and working a CDMA2000 instant community.
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The necessity to quickly set up and tear down the F-SCH is why both the forward fundamental channel and the forward dedicated control channel support 5-ms frames (for quick signaling). 0368 Mbps. 4 User Channels 29 It can also support three different frame duration: 20 ms, 40 ms, and 80 ms. 10 shows examples of different 20-ms frames for Radio Configuration 4. 12 shows examples of different 80-ms frames for Radio Configuration 4. , Radio Configuration 4), the longer the frame duration, the lower the peak data rate.
TIA-98, Recommended Minimum Performance Standards for cdma2000 Spread Spectrum Mobile Station, Telecommunications Industry Association, February 2003. Garg, V. , IS-95 CDMA and cdma2000: Cellular/PCS Systems Implementation, Upper Saddle River, NJ: Prentice Hall PTR, 2001. 1 Introduction As described in Chapter 2, the physical layer is responsible for transmitting and receiving bits (organized in frames) over the physical medium. As such, the layer performs functions such as coding, modulation, and channelization.
The mobile monitors its designated paging indicators. If the paging indicators show that there is no mobile-specific page, then the mobile does nothing. If the paging indicators show that there is a mobile-specific page coming in, then the mobile wakes up and monitors its assigned paging channel slot. Note that in this regard, the F-QPCH works with a paging channel operating in slotted mode. In addition, the F-QPCH can also work with a forward common control channel operating in slotted mode. 3 shows in more detail how the F-QPCH works in conjunction with the F-PCH.
3G CDMA2000 Wireless System Engineering by Samuel C. Yang