Flexible radio access and resource allocation in a universal mobile telephone system
Patent 6374112 Issued on April 16, 2002. Estimated Expiration Date: 
April 1, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 1, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPacket switched radio channel admission control in a cellular telecommunications system Random access communications channel for data services Patent #: 5673259 InventorsAssigneeApplicationNo. 283248 filed on 04/01/1999US Classes:455/452.2, Based on service quality (e.g., bandwidth, etc.)370/352, Combined circuit switching and packet switching370/353, Switching network having common elements to handle both circuit switched traffic and packet switched traffic455/63.1, Distortion, noise, or other interference prevention, reduction, or compensation455/67.13, Noise, distortion, or unwanted signal detection (e.g., quality control, etc.)455/426.1, Including other radio communication system (e.g., cordless telephone, paging, trunking, etc.)455/453, Load balancing455/509, Channel allocation455/511Control channel/voice channel conversionExaminersPrimary: Nguyen, LeeAttorney, Agent or FirmForeign Patent References
International ClassH04Q 007/20AbstractThe 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.Other References
Field of SearchLoad balancingHybrid allocation Soft handoff Channel allocation Control channel/voice channel conversion Channel assignment Hand-off control Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA) Channel assignment Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA) Combined circuit switching and packet switching Switching network having common elements to handle both circuit switched traffic and packet switched traffic | |
