LTE DOWNLINK CONTROL CHANNEL RESOURCE ALLOCATION METHOD AND BASE STATION

摘要

A Long Term Evolution (LTE) downlink control channel resource allocation method and base station are disclosed in the present invention, wherein the method includes that: a base station, via a Media Access Control (MAC) layer, sends resource scheduling information to a physical layer, determines search space to which resources to be allocated belong according to the scheduling information; when the resources to be allocated belong to dedicated search space of a User Equipment (UE), allocates resources of the current downlink channel according to the quality level of the current downlink charnel. In the present invention, a base station can dynamically and reasonably allocate Physical Downlink Control Channel (PDCCH) resources according to quality of downlink channels, and can obtain the quality level of the downlink channels by Channel Quality Indicator (CQI) fed back by a UE or Block Error Ratio (BLER) of Hybrid Automatic Repeat Request (HARQ) or measurement result of uplink channels when unknowing the quality of the downlink channels, thus improving downlink resources reasonable utilization ratio, and reducing control channel occupancy resources. With the present invention, more channel resources can be reserved for service transmission, or more users are scheduled based on originally occupying resources by control channels, thus improving performance of the entire system and increasing capacity of the system.