METHOD, SYSTEM AND APPARATUS FOR TDD RANDOM ACCESS

摘要

The invention relates to an assignment method for random access channel of medium-scale and large-scale systems in TD-SCDMA evolution system, and the preamble sequence can be assigned to the uplink slots far apart from the GP by appending guard period to the random access preamble sequence when the interference is large. The invention can solve the technical problem that the TS0 and DwPTS timeslots of the remote cells produce interference to the random access preamble sequence of the current cell. The assignment of the random access channel becomes more flexible and the detection success probability of the preamble sequence by the base station is improved by application of the invention.