【摘要】：由我國提出的、并經(jīng)ITU批準(zhǔn)的三個第三代移動通信標(biāo)準(zhǔn)之一的TD-SCDMA技術(shù),我國對其擁有完全的自主知識產(chǎn)權(quán)。同時,TD-SCDMA技術(shù)廣泛的被世界上大部分地區(qū)和國家所接受和認(rèn)可。TD-SCDMA最終演進(jìn)為LTE TDD標(biāo)準(zhǔn)。開發(fā)具有高性價比的TD-LTE手機對完善TD-LTE產(chǎn)業(yè)鏈和促進(jìn)TD-LTE商用具有極為重要的意義。 本文首先介紹了LTE標(biāo)準(zhǔn)的制定過程和標(biāo)準(zhǔn)的研究現(xiàn)狀,重點介紹了TD-LTE標(biāo)準(zhǔn)的優(yōu)勢及現(xiàn)階段面臨的主要問題及未來的發(fā)展趨勢。其次對TD-LTE上行無線幀結(jié)構(gòu)、上行物理信道及物理信號做了詳盡的分析。再次,從硬件設(shè)計和軟件設(shè)計兩個角度重點介紹了本文設(shè)計的UE終端。針對ARM微處理器使用的AMBA,總線體系結(jié)構(gòu)實現(xiàn)較復(fù)雜的缺點,結(jié)合軟核SoC系統(tǒng)對外設(shè)可靈活的配置和裁剪的優(yōu)點,本文實現(xiàn)了一種片上總線設(shè)計；同時針對射頻驅(qū)動程序需要配置大量數(shù)據(jù)常量的特點,本文在深入研究ARM體系結(jié)構(gòu)的基礎(chǔ)上實現(xiàn)了一種優(yōu)化的射頻器件驅(qū)動程序設(shè)計方案,可有效縮減代碼量；同時采用共享內(nèi)存的設(shè)計方案,實現(xiàn)多核之問的通信。然后,在Modelsim仿真平臺下,對PUCCH信道、PUSCH信道及探測參考信號進(jìn)行硬件仿真。在簡要介紹用于安捷倫X系列信號分析儀的N9082A LTE TDD測試軟件基礎(chǔ)上,用該軟件對本文設(shè)計的SoC系統(tǒng)進(jìn)行了測試,測試結(jié)果符合3GPP標(biāo)準(zhǔn)要求。最后,對論文做的工作進(jìn)行了總結(jié)概括,并對以后的研究方向做了簡要介紹。
[Abstract]:The technology of TD-SCDMA, one of the three third generation mobile communication standards proposed by China and approved by ITU, has completely independent intellectual property rights in China. At the same time, the technology of TD-SCDMA is widely accepted and recognized by most regions and countries in the world. The machine is of great significance for improving TD-LTE industry chain and promoting TD-LTE business.
Firstly, this paper introduces the formulation process of LTE standard and the research status of LTE standard, and focuses on the advantages of TD-LTE standard, the main problems faced at present and the future development trend. Secondly, the uplink wireless frame structure, uplink physical channel and physical signals of TD-LTE are analyzed in detail. Thirdly, the hardware design and software design are discussed. The UE terminal designed in this paper is introduced emphatically from the angle of view.In view of the shortcomings of AMBA used by ARM microprocessor and the complexity of bus architecture implementation, a kind of on-chip bus design is realized by combining the advantages of flexible configuration and tailoring of peripherals in soft-core SoC system. In this paper, an optimized RF device driver design scheme based on ARM architecture is implemented, which can effectively reduce the amount of code. At the same time, a shared memory design scheme is adopted to realize multi-core communication. Based on the brief introduction of N9082A LTE TDD testing software for Agilent X series signal analyzer, the SoC system designed in this paper is tested with this software. The test results meet the requirements of 3GPP standard. Finally, the work done in this paper is summarized and the future research directions are briefly introduced.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TN929.5

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本文編號：2238380