Method and device for processing MU-MIMO (Multiuser Multiple-Input Multiple-Output) based on orthogonal diversity

A processing method and diversity precoding technology, applied in the field of transmit diversity, can solve problems such as not fully utilizing antenna and carrier resources, not involving multi-user orthogonal diversity multiplexing, and limiting LTE performance
CN101997649AActive Publication Date: 2011-03-30苏州医疗器械产业发展集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州医疗器械产业发展集团有限公司
Publication Date
2011-03-30

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Abstract

The invention discloses a method for processing multiuser multiple-input multiple-output (MU-MIMO) based on orthogonal diversity, which comprises the steps of: precoding data flows of different users by independent delamination and specific orthogonal diversity, and mapping the data in a space-frequency coded matrix; carrying out multiuser precoding or beam forming (BF) processing on data of different users in the space-frequency coded matrix; and transmitting the processed data subjected to resource mapping outside through a transmitting antenna. The invention also discloses a device for processing MU-MIMO based on orthogonal diversity. By using the method and the device, the processing of multiuser transmitting diversity is realized, the resources of the antenna and carrier waves are fully used, and more users can be multiplexed under the same resource consumption.
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Description

technical field

[0001] The present invention relates to the transmit diversity technology in the Long Term Evolution (LTE, Long Term Evolution) system, in particular to a multi-user multiple input multiple output (MU--MIMO, Multiple User Multiple Input Multiple Output) processing method and device based on orthogonal diversity . Background technique

[0002] In the LTE system, the downlink defines that the diversity method when the transmit antenna is 2 antennas is space-frequency coding (SFBC, Space-Frequency Block Codes), and the coding matrix is ​​as follows:

[0003]

[0004] In the above formula, each row of the matrix corresponds to a different transmitting frequency, and each column of the matrix corresponds to a different transmitting antenna; S 1 Indicates the data mapped to subcarrier (Subcarrier) 1 at the first moment, S 2 Indicates the data mapped to Subcarrier 2 at the second moment, and represent S respectively 1 and S 2 the conjugate.

[0005] When...

Claims

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