Patent ID: 8514967
Filing Date: 2013-08-20
Classification: H04L

Abstract:
1. A sending apparatus for transmitting data to a plurality of receiving apparatus, the sending apparatus comprising: a storage section which stores information that associates first communication qualities and second communication qualities with hierarchical modulation methods each using a first channel and a second channel; a control section which selects a hierarchical modulation method corresponding to a combination of one of the first communication qualities which corresponds to a communication quality for a first receiving apparatus and one of the second communication qualities which corresponds to a communication quality for a second receiving apparatus; and a sending section which maps a part of first data whose destination is the first receiving apparatus and a part of second data whose destination is the second receiving apparatus to the first channel and maps another part of the first data and another part of the second data to the second channel according to the selected hierarchical modulation method, and transmits the first data and the second data by using the first channel and the second channel.