Frequency Reuse Partitioning Based Dynamic Channel Allocation Method for OFDMA/FDD System and Frame Transmission Method

摘要

1. the art that the invention set forth in the claims ; The present invention will on the dynamic resource allocation method based on the frequency reuse factor of division scheme, and a frame transfer method therefor for an orthogonal frequency division multiple access system. ; 2. The invention is to solve the technical challenges ; The present invention is a cell radius to select a cell programming splitting a cell based on the frequency reuse factor of division (Frequency Reuse Partitioning) method, such as for OFDM / FDD systems into the cell (Inner Cell) and outside the cell (Outer Cell) increase and, in consideration of the channel information and each user of fairness (fairness) fed back from each user to dynamically allocate a sub-channel to the user based on the frequency reuse factor of division method, for increasing the capacity of the system dynamic to provide a resource allocation method and a frame transfer method therefor that is an object. ; 3. The gist of the solution of the invention, ; The present invention is a cell dividing step of dividing the cell in the dynamic resource allocation method based on the frequency reuse factor of division method, based on the frequency reuse factor of division scheme; User selection step for selecting the divided receiving cell located users obtain the ratio (S / R) of the request is set and the user's data rate is assigned transmission rate from the current position to the current allocation of channels in the channel assignment candidate user; User information acquisition step for acquiring distance information on the distance to the selection of the candidate channels assigned to the user; And after the selection of channel assignment candidate user using the obtained distance information, verify whether or that is in a cell area on the outer cell region, of the user is the frequency reuse factor (FRF) low subgroups than the threshold value in a cell, , also users frequency reuse factor (FRF), including the selection of the subcarrier allocation step to allocate the sub-group from among the subgroups higher than the threshold value by assigning the sub-carrier of the low-subgroup in a foreign cell. ; 4. important use of the invention ; The present invention is an orthogonal frequency division multiple access system or the like yiyongdoem. ; OFDMA, FDD, frequency reuse partitioning scheme, dynamic resource allocation, the frame configuration, the multi-user diversity