Three Changes in Services Structure Cause Drop in Mobile Phone Service Satisfaction in China

admin — Wed, 04 Jul 2007 14:07:28 +0000

CCID Consulting: 2007 White Paper on Mobile Phone Service Satisfaction Survey in China formally released

BEIJING, July 4 /Xinhua-PRNewswire/ -- CCID Consulting, the first Chinese professional provider of management and market consulting and IT outsourcing services listed in Hong Kong, recently released its 2007 White Paper on Mobile Phone Service Satisfaction Survey in China (hereinafter known as 'White Paper') and its 2007 Blue Paper on China's Mobile Phone After-Sales Services Industry (hereinafter known as 'Blue Paper'). » read more »

2.5G

admin — Tue, 13 Mar 2007 09:34:13 +0000

2.5G

Interim step building up to 3G involving overlay of higher-capacity data transmission capability to existing 2G digital wireless networks. (Cingular)

2.5G is a stepping stone between 2G and 3G cellular wireless technologies. The term "second and a half generation" is used to describe 2G-systems that have implemented a packet switched domain in addition to the circuit switched domain. It does not necessarily provide faster services because bundling of timeslots is used for circuit switched data services (HSCSD) as well.

While the terms "2G" and "3G" are officially defined, "2.5G" is not. It was invented for marketing purposes only.

2.5G provides some of the benefits of 3G (e.g. it is packet-switched) and can use some of the existing 2G infrastructure in GSM and CDMA networks. GPRS is a 2.5G technology used by GSM operators. Some protocols, such as EDGE for GSM and CDMA2000 1x-RTT for CDMA, can qualify as "3G" services (because they have a data rate of above 144 kbit/s), but are considered by most to be 2.5G services (or 2.75G which sounds even more sophisticated) because they are several times slower than "true" 3G services. » read more »