URLC
UMA Radio Link Control

UMA (Universal Mobile Access) Radio Link Control is a protocol found within a UNC (Unlicensed Network Controller) to support the transfer of both GPRS control and user plane information between the UNC and the mobile device. This interface termed Up spans a broadband IP network in addition to the unlicensed radio technology in operation – WiFi (Wireless Fidelity) or Bluetooth.,

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