Patent ID: 8730900

Claim:
A method for adaptively adjusting uplink and downlink bandwidth, comprising: a base station counting a usage status of the uplink and downlink bandwidth in a preset time, and obtaining a bandwidth amount ΔBW DL required to be coordinated of downlink bandwidth and a bandwidth amount ΔBW UL required to be coordinated of uplink bandwidth; the base station determining a direction, amount and location of the required change of the uplink and downlink bandwidth according to the obtained ΔBW DL and ΔBW UL in following ways: when ΔBW DL is less than 0, ΔBW UL is greater than 0, an absolute value of ΔBW DL is less than or equal to an absolute value of ΔBW UL , and the absolute value of ΔBW DL is greater than or equal to a certain element in a preset RB number set, the base station selecting a maximum value less than the absolute value of ΔB DL from the RB number set as coordination bandwidth to allocate to the downlink bandwidth; when ΔBW UL is less than 0, ΔBW DL is greater than 0, the absolute value of ΔBW UL is less than or equal to the absolute value of ΔBW DL , and the absolute value of ΔBW UL is greater than or equal to a certain element in the preset RB number set, the base station selecting the maximum value less than the absolute value of ΔBW UL from the RB number set as the coordination bandwidth to allocate to the uplink bandwidth; the base station carrying the determined direction, amount and location of the required change of the uplink and downlink bandwidth through residual ten bits in a logical channel message corresponding to a Physical Broadcast Channel (PBCH) and informing a terminal of the direction, amount and location.