Wednesday, May 05, 2004
Egypt and China tie the knotBy Haru Mutasa
ZTE, China's largest listed telecommunications equipment manufacturer was awarded the contract to construct a CDMA Wireless Local Loop (CDMA WLL) network for Telecom Egypt.
CDMA (Code-Division Multiple Access) refers to any of several protocols used in so-called second-generation (2G) and third-generation (3G) wireless communications. It allows numerous signals to occupy a single transmission channel, maximising the use of available bandwidth.
CDMA is by no means new development in the world of telecommunications. Originally a military technology, it was first used during World War II by the English allies to foil German attempts at jamming transmissions. The allies did this by transmitting over several frequencies, instead of one, making it difficult for the Germans to pick up the complete signal.
This is how it works. Audio input is first digitised into binary elements. The frequency of the transmitted signal is then made to vary according to a defined pattern or code. This means it can only be intercepted by a receiver whose frequency response is programmed with the same code. The vast number of possible frequency-sequencing codes enhances privacy and makes cloning difficult.
The ZTE contract, signed at the sixth International Telecommunications Union (ITU) Telecom Africa conference in Cairo Egypt, commits ZTE to implementing a CDMA WLL wireless access system to the richest and most populous communities in the Nile River Delta with a total capacity of 60 000 subscriber lines.
Africa and the Middle East, according to statistics from the CDMA Development Group, show the second highest growth rate even though together they are a relatively smaller market in terms of total subscriber numbers. This comes as no surprise when one considers the benefits of this emerging telecommunications technology.
With its capacity to offer an affordable wireless alternative to fixed line voice and Internet access services, CDMA WLL seems set to enjoy a long life on the African continent.
ZTE, China's largest listed telecommunications equipment manufacturer was awarded the contract to construct a CDMA Wireless Local Loop (CDMA WLL) network for Telecom Egypt.
CDMA (Code-Division Multiple Access) refers to any of several protocols used in so-called second-generation (2G) and third-generation (3G) wireless communications. It allows numerous signals to occupy a single transmission channel, maximising the use of available bandwidth.
CDMA is by no means new development in the world of telecommunications. Originally a military technology, it was first used during World War II by the English allies to foil German attempts at jamming transmissions. The allies did this by transmitting over several frequencies, instead of one, making it difficult for the Germans to pick up the complete signal.
This is how it works. Audio input is first digitised into binary elements. The frequency of the transmitted signal is then made to vary according to a defined pattern or code. This means it can only be intercepted by a receiver whose frequency response is programmed with the same code. The vast number of possible frequency-sequencing codes enhances privacy and makes cloning difficult.
The ZTE contract, signed at the sixth International Telecommunications Union (ITU) Telecom Africa conference in Cairo Egypt, commits ZTE to implementing a CDMA WLL wireless access system to the richest and most populous communities in the Nile River Delta with a total capacity of 60 000 subscriber lines.
Africa and the Middle East, according to statistics from the CDMA Development Group, show the second highest growth rate even though together they are a relatively smaller market in terms of total subscriber numbers. This comes as no surprise when one considers the benefits of this emerging telecommunications technology.
With its capacity to offer an affordable wireless alternative to fixed line voice and Internet access services, CDMA WLL seems set to enjoy a long life on the African continent.
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