Uplink precoding information transmission method, precoding method, base station and terminal

A technology of precoding information and sending method, applied in the field of communication, can solve the problem of low precoding performance, and achieve the effect of improving precoding performance and uplink precoding performance

Active Publication Date: 2015-08-26
HONOR DEVICE CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a method for sending uplink precoding information, a precoding method, a base station, and a terminal, so as to solve the existing problem of low precoding performance caused by precoding only based on one precoding matrix

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  • Uplink precoding information transmission method, precoding method, base station and terminal
  • Uplink precoding information transmission method, precoding method, base station and terminal
  • Uplink precoding information transmission method, precoding method, base station and terminal

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Embodiment Construction

[0031] The following embodiments of the present invention provide a method for sending uplink precoding information, a precoding method, a base station, and a terminal.

[0032] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0033] Before describing the precoding embodiment of the present application, the uplink transmission process of the terminal and the codebooks corresponding to different numbers of antennas are introduced first.

[0034] see figure 1 , is a schematic diagram of the PUSCH uplink signal transmission structure of the terminal: assuming that two TB (Transport Bl...

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Abstract

Disclosed are a method for transmitting uplink precoding information, a precoding method, a base station, and a terminal. The method for transmitting the uplink precoding information comprises: selecting one precoding matrix set from multiple codebooks corresponding to different orders, where each codebook comprises at least one precoding matrix set, and where at least one codebook among the multiple codebooks comprises at least two precoding matrix sets; and notifying the terminal of the selected precoding matrix set. In embodiments of the present invention, because precoding matrixes in different types of codebooks are divided in advance into precoding matrix sets, the information of the selected precoding matrix set comprising multiple precoding matrixes is thus allowed to be transmitted to the terminal, thereby allowing for the terminal to perform an uplink precoding on the basis of the multiple precoding matrixes, and for improved performance of the uplink precoding.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a method for sending uplink precoding information, a precoding method, a base station and a terminal. Background technique [0002] In LTE (Long Term Evolution, long-term evolution), in order to reduce the CM (Cubic Metric, cubic measure) characteristic of the uplink transmission signal, SC-FDMA (Single Carrier Frequency Division Multiple Access, single carrier frequency division multiple access) is usually used as the multiple address mode. In LTE-A, the advanced evolution of LTE, SC-FDMA is used as the multiple access method in the uplink, and up to four antennas can be supported for sending uplink signals. [0003] In the prior art, when PUSCH (Physical Uplink Shared Channel, uplink shared physical channel) transmits uplink MIMO signals, it is necessary to perform precoding processing on the signal. The sending end performs pre-processing on the sent sig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04L1/00H04B7/06
CPCH04L5/0023H04L5/0091H04B7/0456
Inventor 吴强孙卫军高驰
Owner HONOR DEVICE CO LTD
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