Evolotion from GSM to WCDMA

... = W/R • A narrowband signal is spread to a wideband signal Processing Gain & Spreading WCDMA WCDMA 5 MHz, 1 carrier 5 MHz, 1 carrier TDMA (GSM) TDMA (GSM) 5 MHz, 25 carriers 5 MHz, 25 carriers • ... diversity • WCDMA power control • Closed loop • Outer loop • WCDMA handovers • Soft handover • Softer handover • Concluding remarks 1 © NOKIA TKK_001023.PPT/ 23.10.2000 Introduction...

Ngày tải lên: 16/07/2014, 21:22

... the modernizing imperial family of man. I attend to narrative structure, and to the kind of stories that get told and retold about the Irish, so as to reveal both the regularity of English colonial ... economically and politically. The movement from subjection to citizenship, from dominance to hegemony, from the brute violence of seventeenth-cen- tury coercion to the willing...

Ngày tải lên: 21/09/2012, 10:39

... (Beecher 1885, 113) There is much more to the story. Any full history, from the years after Darwin down to the present, would need to extend the story from Protes- tants to Catholics, although in fact ... mathematics from Bristol University, an M.A. in philosophy from McMaster University, and his Ph.D. from Bristol University. He was full professor of philosophy at Guelph f...

Ngày tải lên: 21/09/2012, 10:46

... important as it is to watch your competitors, it is more im- portant to obsess on your customers. Customers, not competitors, determine who wins the war. Most markets are plagued by too many fishermen ... after too few fish. The best fishermen understand the fish better than their competitors do. 24 Marketing Insights from A to Z Marketing Insights from A to Z 80 Concepts Every Manage...

Ngày tải lên: 21/09/2012, 17:33

... can be used together to design some basic tools that are quite new to Internet applications but have been accessible to desktop applications for ages. The ability to make a call to the server ... into context, explaining the circumstances that led to its emergence as one of today’s most talked about advance- ments in web development. Chapter 2: “Ajax Basics,” moves you from the...

Ngày tải lên: 15/11/2012, 14:19

... displays (due to very limited amounts of storage space and mem- ory), over the years it has rapidly evolved into a visual and highly functional medium. As it grows, so do the tools necessary to maintain, ... web application, a call has to be made to the server. In order to do that, the page must be refreshed to retrieve the updated information from the server to the client (ty...

Ngày tải lên: 15/11/2012, 14:21

... phát cho GSM. Các nhà khai thác của 12 nước châu Âu đã cùng ký bản ghi nhớ Memorandum of Understanding (MoU) quyết tâm giới thiệu GSM vào năm 1991. Cho đến hiện nay mạng thông tin di động GSM đang ... chương này sẽ đề cập đến đặc điểm ,cấu trúc mạng GSM và giải pháp nâng cấp lên 3G. 2.1. Đặc điểm chung GSM được thiết kế độc lập với hệ thống nên hoàn to n không phụ thuộc vào phần...

Ngày tải lên: 16/11/2012, 15:55

... cho mạng GSM. Sau đó là EDGE và các kế hoạch cần thực hiện khi áp dụng EDGE trên mạng GSM. 3.1.Kiến trúc mạng GPRS GPRS được phát triển trên cơ sở mạng GSM sẵn có. Các phần tử của mạng GSM chỉ ... nhập vô tuyến mặt đất to n cầu. UMTS Universal Mobile Telecommunnication System V VA Voice Activity factor Hệ số tích cực thoại. VBR Variable Bit Rate Tốc độ khả biến. W WCDMA Wideband Co...

Ngày tải lên: 02/03/2013, 16:56

... and should not be wasted. To err is human, to forgive divine It is human nature to make mistakes, therefore one should forgive. Too many cooks spoil the broth. If too many people are involved ... forces people to find a way of obtaining it. Never put off till tomorrow what can be done today Don't postpone something you can do now. 3 B Bad news travels fast. People tend to cir...

Ngày tải lên: 18/06/2013, 01:26