Patent ID: 8437788

Claim:
A method for allocating radio resources, comprising: determining, by a base station, a group of downlink sub-channels and transmission parameters related to the group of downlink sub-channels for a terminal based on resource block (RB) dependent downlink channel characteristics and downlink interference characteristics and a downlink bandwidth requirement of the terminal reported by the terminal, and transmitting the determined group of downlink sub-channels and transmission parameters to the terminal; receiving, by the terminal, signals in at least one downlink sub-channels, and determining RB dependent downlink channel characteristics and the downlink interference characteristics based on the received signals; configuring at least one null symbol in the sub-channel as an interference observation window, wherein interference observation windows of adjacent base stations in the same sub-channel do not overlap with each other; and determining, by the terminal, the downlink interference characteristics through detecting data in the interference observation window of each sub-channel.