Conference Paper

Random Access Design for UMTS Air-Interface Evolution

Networks & Enterprise Bus., Motorola, Arlington Heights, IL
DOI: 10.1109/VETECS.2007.222 Conference: Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Source: IEEE Xplore

ABSTRACT Comprehensive long term evolution of the Universal Mobile Telecommunications System (UMTS) specifications is currently ongoing to provide significant improvement over the current release. Important goals for the evolved system include significantly improved system capacity and coverage, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To ensure low latency, users must be able to establish a connection to the network quickly. This paper provides a preliminary design and procedure for the random access channel used to establish a connection when the mobile is not yet time-synchronized to the network in the uplink.

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