Patent ID: 8818436

Claim:
A radio resource mapping method, in which a wireless communication system maps subcarriers to resource units through external permutation and internal permutation, wherein the external permutation comprises: Performing, by a base station, the first permutation on n physical resource units in every N 1 physical resource units, orderly selecting n 1 ×N 1 physical resource units from the n physical resource units obtained from the first permutation, and performing, by the base station, the second permutation on remaining n−n 1 ×N 1 physical resource units in every N 2 physical resource units, wherein n, N 1 , and N 2 are all integers greater than or equal to 1, and N 1 is not equal to N 2 , and n 1 is an integer greater than or equal to 0, and n, n 1 , N 1 , and N 2 are less than or equal to the amount of physical resource units; after the external permutation, the method further comprising: mapping the n physical resource units after the external permutation to frequency partitions; and partitioning the physical resource units manned to the frequency partitions into localized resource groups and/or distributed resource groups through sector-specific permutation and/or direct mapping; wherein the internal permutation comprises: permuting resource units in the distributed resource groups into logical distributed resource units, and directly mapping resource units in the localized resource groups into logical localized resource units.