（通信与信息系统专业论文）hsdpa数据卡语音功能的优化.pdf

?hsdpa ? ? ? ? ? ? (?) ? (?) ? ? ? hsdpa ? 3g ? internet? ? hsdpa ? ? ? ? ? hsdpa ? usb ? ? ? (1) ? pc ? usb ? pc ?(2) ? usb ? ? diag ? pc ? pcui ? at ? ? pcm ? ? (3) ? ? peaq ? matlab ? ? ? ? ? ?usb ? ? subject : the optimization of voice performance for hsdpa data-card specialty : communication and information system name : you fenshuang lei (signature) instructor : wang yamin wang ya-min (signature) abstract as a kind of hsdpa technology terminal equipment, data-card can access internet conveniently where the third generation network (3g) is covered, and it?s a perfect immergence of mobile communication and internet technology. the traditional data-card has the disadvantages of high expense and awful voice quality, so the research for optimizing voice performance is much useful. the traditional design sheme of data-card adds voice sampling module and correspondingly dedicated earphone and earphone interface. in hence, data-card expence is higher, and voice quality is weaker. in this paper, the recommendations of hsdpa and usb are introduced, but the basic data-card design scheme is explained. on the basis of this, an optimization scheme is submitted. my research emphasizes on the following contents: (1) simplify traditional data-card construction scheme, and discard dedicated earphone interface for veneer; directly use pc voice sampling module, and exchange data with data-card through usb interface; (2) research interface agreement of usb, and a dedicated voice data transfer interface ? diag is designed. through this scheme, pcui interface is used to download and upload at order. according to pcm voice frame structure and transfer velocity, all kinds of transfer functions are designed; (3) on account of voice frame discard leading to serious voice distortion, compensation for discard frame algorithm is contrived. peak tests and corresponding matlab simulation results hold that our designed data-card can realize and improve voice transfer performance, on the basis of simplifying hardware structure and save costs. key words : data-card usb protocol compensation for discard frame thesis : application research ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 1 ? 1 1 ? 1.1 ? ? ? ? ? ? ? hsdpa 321 ? usb ?-? usb ? ? ? 3g 654 ? ? ? ? hsdpa ? usb ? ? ? ? ? ? ? ? ?(? 28 ?)? ? ? ? ? ? ? ? ? ? ? ? 1.2 ? ? 3g ? 3g ?3g ? ? hsdpa ? pcmcia?usb modem? ? ? usb modem ? ? usb ?pc ? ? dsl ? ? 2 ? ? 3g ? ? 3g ?vodafone ? ? ? ? usb ? ? usb ? ? ? ? ? ? ? ? ? ? ? ?2004 ? ? 3g ?2007 ? 3g ? 800 ? hsdpa ? 3g/3.5g ? ? 7 ? ?3g ? 3g ? ? ? td ? ? td?3+1?3 ? td ? td ? ?1 ? td ? ? ? ? ? ? 1.3 ? ? ? (1) ? (2) ? (3) ? ? 1 ? 3 ? ? ? ? ? hsdpa ? usb ? ? ? ? ? at ? ? ? ? ? ? ? peaq ? ? matlab ? ? ? ? ? 4 2 ? 2.1 hsdpa ? hsdpa (high speed downlink packet access) ? 3gpp(the 3rd generation partnership project)?r5?/? ? wcdma ? 5mhz ? ? 8-10 mbit/s? mimo ? 20 mbit/s? ? hsdpa ? 3g ? internet? 2.1.1 hsdpa ? ? 3g ?wcdma ? ? 384kbps ? ? ? ? ? ? cdma2000 1x ev-do 10 ? 2.4mbps ? 300kbps-500kbps ? ? 3g ? 3g ?wcdma ? ? ? wcdma ? cdma2000 1x ev-do ? ? ? (3gpp) ? (hsdpa)? ? wcdma r99 ? wcdma ? ? ? hsdpa ? wcdma ? 3gpp ? r5 ? ? ? wcdma ? ? 14.4mbps? ? ? wcdma ? ? 1211 ? wcdma r5 ? cdma2000 1x ev-do ? ? hs-dsch? ?pn ? 2 ? 5 ? ? ? ?hsdpa ? r99 ? ? ? r99 ? ? nodeb ? ?(mac)? mac-hs? arq ? ? rnc(radio network controller ?)? ? hs-dsch(high-speed downlink shared channel?)? ?dch? hsdpa? ?hsdpa ? ?(hs-dsch)?(hs-scch)? ?(hs-dpcch)?(hs-scch)? mac-hs ? ?h-arq ? hs-dsch ? ? 2ms ?(hs-dpcch)? ? ?(hs-dsch)? 15 ? 16 ? sf ? ? ? ? rbs ? hs-dsch ? 2ms ?(hs-dsch)? ? 2.1.2 hsdpa ? hsdpa ? cdma2000 1x ev-do ? ? wcdma ? 14.4mbit/s? wcdma ? 23 ? 13 ? 1 ? ? 3gpp r5 ?(hs-dsch)? ? 2 ? qam ? 3gpp r99/r4 ? qpsk ? 3gpp r5 ? ? qpsk?hs-dsch ? 16qam ? qpsk ?16qam ? ? 6 3 ? hsdpa ? 2ms? 10mswcdma ? 5 ? hsdpa ? ? ? 2ms ? ? 4 ?(amc) ?(amc)? node b ? ue ? ?(qpsk ? 16qam)? ? ? ? 5 mac ? mac-hs hsdpa ? ue ? node b ? mac ? mac-hs ? ? node b ? ?mac-hs ?lub ? ?(mac-d)? 6 ?(harq)? ? harq ? ? ? 5ms ? ? ? ? ? ? ? ? 7 ? ? ? ?hsdpa ? ? hs-dsch ? 2ms ? ? ?hs-dsch ?16qam? ?xqam ? ?xqam ? ? hsdpa ? ? xqam ? ?wcdma ? 2 ? 7 ? hs-dsch? 8 ? ? hsdpa ? cdma2000 1x ev-do ? hsdpa ? ? ? ? ? ? ? ? ? ? cir ? ? ? cir ? ? ? hsdpa ? ? ? ? harq ? tcp/udp ? ? ? wcdma r5 ? hsdpa ? ?harq ? ? rbs ? mac ? ? hsdpa ? ? 3gpp ? ? ? amc? harq ? 10.8mbps14.4mbps? ? 30mbps? ?(ofdm)? 64qam ? 100mbps ?hsdpa ? 2.2 usb ? ?(universal serial bus? usb) 1514 ? ? 8 ?/? ? hsdpa ? usb ? pc ? usb ? pc ? 2.2.1 usb ? usb ? ? usb ?(host)?usb ?(device)?(interconnect) 16 ? 1 usb ? ? usb ?usb ? ? 2.1 ?usb ? usb ? ? usb ? 127 ? ? usb ? usb ? 6 ?usb ? usb ? 2.2 ? ? 2.1 usb ? ? 2.2 usb ? 2 ? 9 2 usb ? ? usb ? usb ? usb ? ? usb ? usb ? ? usb ? usb ? ? cpu ?usb ? ? usb ? usb ? ?root hub? ? usb ? usb ? usb ? ? usb ? ? ? usb ?(usb system software)?(client software)? ? usb ? usb ? usb ? ? usb ? usb ? ? ? 3 usb ? usb ? usb ? usb ? usb ? usb ?(?)? usb ? ? usb ? usb ? ?(descriptor)?(class)?(interface)?(endpoint)?(pipe)? (device address)? (1) ? ? usb ? ?(device descriptor)? ? (configure descriptor)? ?(interface descriptor)? ?(endpoint descriptor) ?(string descriptor)?usb ? ? (2) ? usb ?usb ? ?(client driver)? ? (3) ? ? usb ?usb ? ? ? 10 ? usb ? ? (4) ? ? usb ? usb ? usb ?usb ? ? ? 4 ?(endpoint number)? ? ? usb ? ? (5) ? ? usb ? usb ? usb ? usb ? (6) ? ? ? 7 ? 127 ? usb ? ? usb ?usb ? ? usb ? ?usb ? ? 2.2.2 usb ? usb ? usb ? usb ? ? ? ? usb ? usb ? 2.3 ? 2 ? 11 ? 2.3 usb ? usb ? usb ? ? usb ? usb ? ? usb ?usb ?(client software layer)?usb ?(usb system software layer)? usb ?(host controller layer)?(client software)? usb ? ?usb ?(usb system software)? usb ? ? usbd(usb ?)? hcd(?)? usb ?(usb host controller)? usb ? usb ? ? ? usb ? ? usb ? ? ? ? ? usb ? usb ?(usb bus interface layer)?usb ? (usb device layer)?(function layer)? usb ? ?usb ? usb ? ? usb ? ? 12 ? ?usb ? ?usb ? usb ?usb ?usb ? usb ? ? usb ? ? usb ? usb ? ? i/o ? ? usb ? 0 ? ? usb ? ? usb ? usbd ? usb ? ? usb ? usb ? ?(sie)? usb ? ? usb ? ? ? usb ? ? hcd(host control driver)? usb ? usbd(usb driver)?hcd ? usb ? ? pc ? hcd ?usb ? hcd ? ? ? hcd ? ? usb hub ?usbd ? usb ? ? ? usb ? ? usbd ? usb ? usbd ? ?usbd ?(command mechanism)? ?(pipe mechanism)? 0? ? 2.2.3 usb ? 1 ?(packet) ? usb ? ?usb ? 5 ?(synchronization sequence? sync)? ?(packet identification? pid)?(crc)? ?(end of packet? eop)? 2.4 ? usb ? 2 ? 13 ?(sync)?(pid)? ? ? 2.4 usb ? ?usb ? pid ?usb ? 4 ? 2.1 ? ? 2.1 ? pid ? pid ? pid3:0 ? ? ?token? ?out? ?in? ?sof? ?setup? 0001b 1001b 0101b 1101b ? ? ? ? ? ?data? ? 0 ?data0? ? 1 ?data1? 0011b 1011b ? pid ? pid ? ?hand- shake? ?ack? ?nak? ?stall? 0010b 1010b 1110b ? ? ? ? ?special? ?pre? 1100b ? 2 ?(transation) ? usb ? ?(setup)?(sof)? ?(eof)? usb ? ? ? ? ? 3 ? 3 ? ? ? ? ? ?(phase) ? ? ? ? 14 3 ?(frame) ? 1ms? ?usb ? ? ?usb ? ? 2.5 ? ?usb ? ? ? 2.5 usb