METHOD AND BASE STATION FOR ADJUSTING THE RESOURCES DENSITY OF PHYSICAL RANDOM ACCESS CHANNEL

摘要

The invention discloses a method for adjusting the resources density of Physical Random Access Channels (PRACHs), including that: a base station detects Preamble sequences, and receives measurement information of Random Access Channels (RACHs) sent by user equipments (UEs); the base station calculates a Preamble contention probability (CP) of a cell within a period T; the base station compares the Preamble contention probability (CP) with a contention probability threshold (CP_Thre), and according to the result of the comparison, adjusts the PRACH resources density N. The invention also discloses a base station, which includes: a reception module, a calculation module and an adjustment module. According to the technical method, the base station adjusts the value of the PRACH resources density N, optimizes PRACH resources, which ensures a user access success rate and handover success rate, enhances the user's perception and estimates the Preamble resources status of the cell more accurately.