Patent ID: 8249613
Filing Date: 2012-08-21
Classification: H04B,H04L

Abstract:
1. A method of data processing in a Multiple Input Multiple Output (MIMO) system, comprising: saving group identifiers in a base station and the user terminals; dividing user terminals into groups based on channel attributes and service requirements of the user terminals; setting a precoding code word and a cyclic delay for each of the groups; determining which group a user terminal corresponding to data to be processed belongs to; processing the data to be processed by Cyclic Delay Diversity (CDD) precoding based on the precoding code word and the cyclic delay which correspond to the group which the user terminal belongs to; and wherein said determining which group the user terminal corresponding to the data to be processed belongs to comprises: measuring, by the user terminal corresponding to the data to be processed, attribute parameters of the user terminal; determining the channel attributes and the service requirements of the user terminal according to the attribute parameters; determining which group the user terminal corresponding to the data to be processed belongs to according to the channel attributes, the service requirements and the saved group identifiers; and sending a group identifier of the user terminal to the base station.