Pre-encoding matrix generation apparatus and method

The invention discloses a pre-encoding matrix generation apparatus. The pre-encoding matrix generation apparatus includes a parameter calculator, a counter and an element generation module, wherein the parameter calculator is used for calculating a first parameter and a second parameter which are used for determining a pre-encoding matrix according to a first pre-encoding matrix identity and a second pre-encoding matrix identity, and sending the first parameter and the second parameter to the element generation module; the counter is used for controlling the line number of a pre-encoding matrix elements generated from the element generation module; and the element generation module is used for generating the elements corresponding to the line number in the pre-encoding matrix according to the received first parameter and second parameter and the line number. The invention also discloses a pre-encoding matrix generation method.