A transmission method, wherein the method comprises: determining, by user equipment,UE, a first discovery signal in a Device to Device Proximity Service process; obtaining, by the UE after encoding the first discovery signal, respective initial resource locations of k redundancy versions,RVs, of the first discovery signal, wherein k is a positive integer not less than 1; separately mapping, by the UE according to the respective initial resource locations of f RVs of the k RVs, each RV of the f RVs to at least two physical resource block pairs,PRB Pairs, of a first resource location, wherein f is a positive integer not less than 1 and not greater than k; and transmitting, by the UE at the first resource location, the f RVs of the first discovery signal, characterized in that the determining, by UE, the first discovery signal comprises: determining, by the UE, a bit length of the first discovery signal; determining, by the UE according to the bit length of the first discovery signal, that any RV of the first discovery signal occupies n PRB Pairs, wherein n is a positive integer not less than 2; and configuring, by the UE, first indication information in the first discovery signal, wherein the first indication information is used to indicate a quantity j of PRB Pairs occupied by the first discovery signal, j is equal to a value obtained by multiplying n by f, and f is a quantity of RVs sent by the UE in the first resource. determining, by user equipment,UE, a first discovery signal in a Device to Device Proximity Service process; obtaining, by the UE after encoding the first discovery signal, respective initial resource locations of k redundancy versions,RVs, of the first discovery signal, wherein k is a positive integer not less than 1; separately mapping, by the UE according to the respective initial resource locations of f RVs of the k RVs, each RV of the f RVs to at least two physical resource block pairs,PRB Pairs, of a first resource location, wherein f is a positive integer not less than 1 and not greater than k; and transmitting, by the UE at the first resource location, the f RVs of the first discovery signal, characterized in that the determining, by UE, the first discovery signal comprises: determining, by the UE, a bit length of the first discovery signal; determining, by the UE according to the bit length of the first discovery signal, that any RV of the first discovery signal occupies n PRB Pairs, wherein n is a positive integer not less than 2; and configuring, by the UE, first indication information in the first discovery signal, wherein the first indication information is used to indicate a quantity j of PRB Pairs occupied by the first discovery signal, j is equal to a value obtained by multiplying n by f, and f is a quantity of RVs sent by the UE in the first resource. determining, by the UE, a bit length of the first discovery signal; determining, by the UE according to the bit length of the first discovery signal, that any RV of the first discovery signal occupies n PRB Pairs, wherein n is a positive integer not less than 2; and configuring, by the UE, first indication information in the first discovery signal, wherein the first indication information is used to indicate a quantity j of PRB Pairs occupied by the first discovery signal, j is equal to a value obtained by multiplying n by f, and f is a quantity of RVs sent by the UE in the first resource.