Search results
Results from the WOW.Com Content Network
The Global mobile Suppliers Association (GSA) is a not-for-profit industry organisation representing suppliers in the mobile communication industry. GSA actively promotes 3GPP technology such as 3G ; 4G ; 5G .
The GSM Association (commonly referred to as 'the GSMA' or Global System for Mobile Communications, originally Groupe Spécial Mobile) is a non-profit [1] industry organisation that represents the interests of mobile network operators worldwide. More than 750 mobile operators are full GSMA members and a further 400 companies in the broader ...
Vehicle navigation on a personal navigation assistant Garmin eTrex10 edition handheld. A satellite navigation device or satnav device, also known as a satellite navigation receiver or satnav receiver or simply a GPS device, is a user equipment that uses satellites of the Global Positioning System (GPS) or similar global navigation satellite systems (GNSS).
GSM is also a trade mark owned by the GSM Association. [2] "GSM" may also refer to the voice codec initially used in GSM. [3] It was first implemented in Finland in December 1991. [4] By the mid-2010s, it became a global standard for mobile communications achieving over 90% market share, and operating in over 193 countries and territories. [5]
The Globalstar system uses the Qualcomm CDMA air interface; however, the Ericsson and Telit phones accept standard GSM SIM cards, while the Qualcomm GSP-1600/1700 phones do not have a SIM card interface, but use CDMA/IS-41 based authentication. Therefore, the Globalstar gateways need to support both the CDMA/IS-41 and the GSM standards.
The history of the GSM module dates back to the 1980s when the GSM network was first introduced. The first GSM module was designed to work with analogue phones, and it was not until the late 1990s that digital GSM modules were introduced. Today, the GSM module is an essential component used in various communication systems.
The GSM standards are defined by the 3GPP collaboration and implemented in hardware and software by equipment manufacturers and mobile phone operators. The common standard makes it possible to use the same phones with different companies' services, or even roam into different countries. GSM is the world's predominant mobile phone standard.
Qualcomm conducted CDMA test demonstrations in 1989 [69] in San Diego and in 1990 in New York City. [70] [71] In 1990, Nynex Mobile Communications and Ameritech Mobile Communications were the first carriers to implement CDMA networks instead of TDMA. [70] Motorola, a prior TDMA advocate, conducted CDMA test implementations in Hong Kong and Los ...