standard for micro cellular communications systems developed by ETSI, building on the GSM standard, also referred to as PCN system standard. Such systems operate with very small cells, varying in size between a few hundred metres and a few kilometres.

standard for micro cellular communications systems developed by ETSI, building on the GSM standard, also referred to as PCN system standard. Such systems operate with very small cells, varying in size between a few hundred metres and a few kilometres.