發(fā)布時間：2018-05-10 17:14

  本文選題：TD-SCDMA + 控制信道　； 參考：《華南理工大學》2013年碩士論文

【摘要】：TD-SCDMA是我國具有自主知識產(chǎn)權的系統(tǒng)標準。本文介紹了移動無線通信系統(tǒng)的發(fā)展過程，，從最初產(chǎn)生到第一代移動通信技術（1G），第二代移動通信技術（2G），第三代移動通信技術（3G）以及第四代移動通信技術（4G）的演變。3G技術主要包括了WCDMA、CDMA2000、TD-SCDMA和WiMAX技術。本文著重介紹了3G中TD-SCDMA系統(tǒng)，TD-SCDMA系統(tǒng)的主要特點是采用了TDD方式并且綜合了CDMA的優(yōu)點，靈活的空中接口，使用智能天線等新技術。根據(jù)2GHz TD-SCDMA數(shù)字蜂窩移動通信網(wǎng)高速下行分組接入Uu接口物理層技術要求，本文從物理信道和傳輸信道到物理信道的映射、復用與信道編碼、擴頻和調制以及物理過程介紹了TD-SCDMA系統(tǒng)的物理層結構。 本文針對TD-SCDMA系統(tǒng)從控制信道關鍵技術進行討論研究。主要討論了上行同步信道UPPCH、尋呼指示信道PICH和下行共享控制信道HS-SCCH： 對于UPPCH，從同步信道與突發(fā)結構、同步過程以及同步序列三個方面進行闡述，接下來討論了上行同步的算法，采用簡化算法對上行同步進行了仿真與實現(xiàn)，以及結果對比。 對于PICH，介紹了尋呼指示到PICH的信道映射，基于多幀基礎的PICH幀結構。對PICH信道進行實現(xiàn)。 對于HS-SCCH，介紹了單載波HS-SCCH信道編碼與復用的步驟包括信道的復用、附加CRC、信道編碼、速率匹配、HS-SCCH的交織、物理信道映射。并針對每個模塊進行了實現(xiàn)，實現(xiàn)了其功能。
[Abstract]:TD-SCDMA is a system standard with independent intellectual property rights in China. This paper introduces the development process of mobile wireless communication system, from the initial generation to the first generation mobile communication technology (1G), the second generation mobile communication technology (2G), the third generation mobile communication technology (3G) and the fourth generation of mobile communication technology (4G), which mainly include the WCDM A, CDMA2000, TD-SCDMA and WiMAX technology. This article focuses on the introduction of TD-SCDMA system in 3G. The main features of the TD-SCDMA system are the adoption of TDD mode and the integration of the advantages of CDMA, flexible air interface, and the use of smart antennas. The 2GHz TD-SCDMA digital cellular mobile communication network has access to the physical layer technology of the Uu interface. The physical layer of the TD-SCDMA system is introduced from the physical channel and the transmission channel to the physical channel, the multiplexing and channel coding, the spread spectrum and modulation, and the physical process.
This paper discusses the key technology of the TD-SCDMA system from the control channel, mainly discusses the uplink synchronization channel UPPCH, the paging indicator channel PICH and the downlink shared control channel HS-SCCH:
For UPPCH, from three aspects of synchronization channel and burst structure, synchronization process and synchronization sequence, the algorithm of uplink synchronization is discussed, and the simplification algorithm is used to simulate and implement the uplink synchronization, and the result is compared.
For PICH, the channel mapping of paging indication to PICH is introduced, and the PICH frame structure based on multi frame is implemented. The PICH channel is implemented.
For HS-SCCH, the steps of single carrier HS-SCCH channel coding and multiplexing are introduced, including channel multiplexing, additional CRC, channel coding, rate matching, interleaving of HS-SCCH, physical channel mapping, and implementation of each module to realize its function.

【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TN929.5

【參考文獻】

相關期刊論文 前2條

1 潘濤,林家儒;第三代移動通信系統(tǒng)TD-SCDMA的核心技術[J];通信技術;2002年06期

2 段紅光,羅一靜;TD-SCDMA系統(tǒng)中終端對尋呼塊監(jiān)視算法分析[J];中國數(shù)據(jù)通信;2005年01期

本文編號：1870168