초록 ▼

The present invention provides flexible radio access and resource allocation in a Universal Mobile Telephone System (UMTS). A UMTS Terrestrial access network (UTRAN) in response to a radio access bearer service request, flexibly and efficiently allocates resources necessary to support a communicatio

The present invention provides flexible radio access and resource allocation in a Universal Mobile Telephone System (UMTS). A UMTS Terrestrial access network (UTRAN) in response to a radio access bearer service request, flexibly and efficiently allocates resources necessary to support a communication with a mobile radio. The UTRAN includes plural base stations for communicating with mobile radios over a radio/air interface using radio channel resources allocated by a radio network controller connected to the base stations. External network service nodes interfacing with external networks communicate with the UTRAN over a radio access network interface. The UTRAN provides a radio access bearer service to the external network service nodes, and radio access bearers are dynamically assigned to radio channel resources by the UTRAN. When establishing each bearer, the UTRAN flexibly maps or allocates the radio access bearer to physical transport resources through the UTRAN and radio channel resources over the radio/air interface. In an example embodiment, the transport between nodes and the UTRAN includes an ATM connection, and a radio channel over the air interface includes one or more CDMA spreading codes. The mapping is based on one or more parameters including for example one or more quality of service parameters and/or current traffic conditions. In addition, if the one or more parameters changes during the life of the connection, the connection may be switched to a more appropriate channel type.

대표청구항 ▼

1. For use in a universal mobile telephone system (UMTS) providing communications with mobile radios, a radio access network (RAN) comprising:plural base stations for communicating with mobile radios over an air interface using allocated radio resources, and a radio network controller coupled to the

1. For use in a universal mobile telephone system (UMTS) providing communications with mobile radios, a radio access network (RAN) comprising:plural base stations for communicating with mobile radios over an air interface using allocated radio resources, and a radio network controller coupled to the plural base stations, and first and second service nodes that interface with first and second external networks, respectively, connected to the radio network controller over a RAN interface, where in response to a radio access bearer request from one of the first and second service nodes, the RAN is configured to provide a radio access bearer service to the one service node including: (1) establishing a logical connection between the one service node through the RAN to the mobile radio and (2) mapping the logical connection to one of plural, different types of channels, based on a UMTS traffic parameter, and where the plural, different channel types include a dedicated channel type and a common channel type, wherein the UMTS traffic parameter includes an availability of dedicated channels, and the RAN is configured to map the logical connection to a common channel when the availability of dedicated channels is low.