Wireless Local Loop
Wireless local loop (WLL), also called radio in the loop (RITL) or fixed-radio access (FRA) or fixed-wireless access (FWA), is the use of wireless connection as the last mile for delivering plain old telephone service (POTS) to customers.
It differs from Global System for Mobile Communications (GSM) in that it does not offer roaming or find-me anywhere facilities. Also GSM is a standard defining every aspect of modulation, protocols, etc. WLL is a generic term for a method of connection which can be implemented using a number of different technologies. Indeed, confusingly, some WLL providers do so using GSM equipment.
WLL Standards
- corDECT (India)
- corDECT is a wireless local loop standard developed in India, based on the DECT digital cordless phone standard.
- DECT (Europe)
- Personal Handy-phone System (PHS in Japan, PAS/Xiaolingtong in China)