Multicarrier and multirate CDMA system

专利名称：Multicarrier and multirate CDMA system发明人：Guu-Chang Yang申请号：US12068775申请日：20080212

公开号：US20080198812A1公开日：20080821

专利附图：

摘要：In a multi-carrier and multi-rate CDMA system, a base station transmits an indextag to a number of mobile stations. The index tag has a length indicating a transmissionrate and all index tags are nodes in a code tree. In the code tree, mother nodes and theirchild nodes block each other and are not assigned to the mobile stations at the sametime. At the same time, index tags of nodes in the same level of the code tree map areorthogonal to each other. The mobile station constructs an index tag matrix according tothe index tag. Then, the index tag matrix is multiplied with a generating matrix that isstored in every mobile station to generate a spreading factor matrix whose rows

respectively correspond to different carriers.

申请人：Guu-Chang Yang

地址：Taichung TW

国籍：TW

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