| 摘要 |
A mobile telecommunications network includes a mobile telecommunications terminal (UE) 1 and a plurality of transceiver nodes (eNB) 5 providing a plurality of cells, each cell having an allocated identifier, e.g. a Physical-layer Cell Identifier (PCI). The telecommunications terminal 1 transmits preambles to access one of the cells, wherein the telecommunications network includes preamble generation means 25 operable to generate the preambles in dependence upon the cell identifier and the cell range (coverage area). The preambles may be generated from one or more cyclically shifted sequences of values, preferably Zadoff-Chu sequences, and the preamble generation means 25 may determine a number of the cyclically shifted sequences of values in dependence upon the cell range. |
