通信專業(yè)畢業(yè)設(shè)計外文翻譯---2g的潛力-資料下載頁
2025-05-11 15:30本頁面
【導(dǎo)讀】雖說2G的缺點帶動了3G的發(fā)展，但是這并不證明必須放棄它的平臺。售和消費者使用的技術(shù)。人們認(rèn)為2G技術(shù)已經(jīng)黔驢技窮，因其傳輸信道完全用光從而缺少可用信道，人們還認(rèn)為一些市區(qū)由于認(rèn)購這項服務(wù)的人口多成為交通繁忙的。在這些交通熱點繁忙時間，經(jīng)營者可能無法很快為大家服務(wù)提供。僅僅是因為2G缺乏系統(tǒng)能力，這也不足以使3G系統(tǒng)的建設(shè)成為必然。頻率載波可轉(zhuǎn)換成200GSM傳輸信道。在實踐中，由于控制通道使用空間，交通聲。5MHz頻率片將提供對GSM系統(tǒng)的許多新的能力。語音將仍然是電信的重要組成部分，但它往往會與其他類型的信息結(jié)合。目前設(shè)計的2G網(wǎng)絡(luò)只能完成語音信息傳輸，實時傳輸多。對電信世界的需要和期望是完全不同于今天的。此外，GSM系統(tǒng)多年為滿足日益增長的新要求，發(fā)展地非常成功。生成的應(yīng)用程序與組件多個多媒體突發(fā)流量不能得到有效處理的GSM。2G仍將服務(wù)于低收入和中等終端市場，因此，2G和3G提供者有不同的商業(yè)模式。
【正文】 7 頁 on the 2G platform of the work. Therefore, 2G systems are still very much relevant in delivering multimedia to customers. Voice The ability of 2G systems delivering voice which is its primary intent cannot be swept aside, voice being an integral part of 3G would try in this aspect to overshadow it due to it abundant channel, but a proper channel management and increased bandwidth would bolster the relevance of 2G. The requirement is just the increased number of channels. Inter access Inter access is an application required in almost every sphere of munication. This application is relatively easy to implement in 3G terminals. 2G is basically circuitswitched, but upgrades of EDGE and GPRS bring packet switching into 2G making it an IP work, this allows inter access though at a level not parable with 3G. 5. Conclusion In conclusion, this paper analyzed 2G and 3G from a view in terms of technologies, market structure/consumers. Although 2G is being taken as an inferior technology and 3G is perceived as an advanced technology, they each retain their own advantages and disadvantages. In general, 2G and 3G can be viewed as a progression rather than petitive technologies as they can be used to serve different target markets. 2G will serve the low and middle end markets, while 3G will serve the high end market. As a result, 2G and 3G providers will have different business models. The analysis of 2G and 3G in this paper implies that the success of a technology is not only dependent on the performance of the technology itself but on many other factors, including market demands, business models and government policy. Experiences in other countries help to demonstrate this point [7]. In terms of technology, improvements to the quality of service are the key to the survival of 2G and technology maturity is the major challenge of 3G. Government should ensure that operators with existing facilities should not relent on improving their 2G’s quality of service. Since the functions of 3G phones and 2G phones are very similar, a unified user interface could be established and users should be able to use such a unified user interface to access a variety of value added services. For instance, when a user is carrying out mobile banking, he/she should be able to operate in areas where 3G services is not available by the use of GPRS. When a person is traveling, and roaming is needed, it can switch to 2G mode. For multimedia and fast Inter access, 3G mode may be needed. This approach can be enhanced by subsidy on a dual mode handset. 共 8 頁 第 8 頁 指 導(dǎo) 教 師 評 語 外文翻譯成績： 指導(dǎo)教師簽字： 年 月 日 注： 1. 指導(dǎo)教師對譯文進(jìn)行評閱時應(yīng)注意以下幾個方面：①翻譯的外文文獻(xiàn)與畢業(yè)設(shè)計（論文）的主題是否高度相關(guān)，并作為外文參考文獻(xiàn)列入畢業(yè)設(shè)計（論文）的參考文獻(xiàn)；②翻譯的外文文獻(xiàn)字?jǐn)?shù)是否達(dá)到規(guī)定數(shù)量（ 3 000 字以上）；③譯文語言是否準(zhǔn)確、通順、具有參考價值。 2. 外文原文應(yīng)以附件的方式置于譯文之后。
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