Methods and arrangements for providing radio access at local site

US9596140B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Kim Laraqui · Stockholm, SE
• Henrik Almeida · Stuvsta-Snättringe, SE
• Boris Dortschy · Åtvidaberg, SE
• Chenguang Lu · Sollentuna, SE
• Elmar Trojer · Bissenkamp, SE

Key dates

• Filing date: Mar 7, 2013
• Grant date: Mar 14, 2017
• Expiry date: Mar 7, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W88/085
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Methods and nodes for providing radio access to a communication network (314) for mobile terminals (T) at a local site (300). When a local transition unit (304) at the local site receives incoming signals from an antenna (302a) and associated radio head (302b) installed at the local site, the signals are converted into optical form and the local transition unit sends the signals in optical form over an optical link (306) to a central office (308) comprising a set of radio units (312). A central transition unit (310) at the central office converts the signals into a form adapted for reception by a radio unit. The central transition unit is further instructed by a control unit (316) to forward the signals to one of the radio units based on configuration data of the antenna/radio head. The configuration data has been registered at the control unit when received from the antenna/radio head over a control channel automatically at installation. The central transition unit accordingly forwards the signals according to the instruction from the control unit to the correct radio unit for processing in digital format and digital transmission over the communication network.