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Data transmission method and device for multiple-input multiple-output system

A data transmission method and multi-output technology, applied in the field of communication, can solve the problems of loss of data transmission rate and spectrum utilization, low system throughput and link reliability, etc., so as to improve the data transmission rate and spectrum utilization, improve the System throughput and link reliability, the effect of optimizing the superposition effect

Active Publication Date: 2011-03-30
ZTE CORP
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Problems solved by technology

[0010] The inventors found that the determination and switching of DIUC and MIMO modes in the data transmission method in the related art are independent of each other, and the superimposed effects are often affected due to being offset, resulting in unnecessary data transmission rate and switching during the switching process. Loss of spectrum utilization, resulting in lower system throughput and link reliability

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  • Data transmission method and device for multiple-input multiple-output system
  • Data transmission method and device for multiple-input multiple-output system
  • Data transmission method and device for multiple-input multiple-output system

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] image 3 A flowchart showing a data transmission method according to a first embodiment of the present invention, the method includes the following steps:

[0033] Step S301, detecting the Data CINR of the terminal;

[0034] Step S302, querying the joint adjustment table according to the Data CINR to obtain a target combination of DIUC and MIMO modes, wherein the joint adjustment table is used to record the mapping relationship between various combinations of DIUC and MIMO modes corresponding to Data CINR;

[0035] Step S303, judging whether the currently used DIUC and MIMO mode is consistent with the DIUC and MIMO mode in the target combination mode;

[0036] Step S304, in the case of inconsistency, adopt the DIUC and MIMO modes of the target combination mode to transmit data.

[0037] In this embodiment, the Data CINR of ...

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Abstract

The invention provides data transmission method and device for a multiple-input multiple-output system. The data transmission method comprises the following steps of: checking a data area-carry interference-to-noise ratio of a terminal; obtaining a modulation coding mode and a multiple-input multiple-output mode of an object combination mode according to a data area-carry interference-to-noise ratio inquiry joint debugging table, wherein the joint debugging table is used for recording the mapping relation of various combination modes of the modulation code mode and the multiple-input multiple-output mode corresponding to the data area-carry interference-to-noise ratio; and transmitting data by adopting the modulation coding mode and the multiple-input multiple-output mode of the object combination mode. The invention realizes the self-adapting regulation of DIUC (Downlink Interval Usage Code) and MIMO (Multiple-Input Multiple-Output) modes in a data transmission process, increases frequency spectrum availability, thereby increasing system throughput and link reliability and overcoming the problems of lower system throughput and lower link reliability caused by mutually and independently determining and switching the DIUC and MIMO modes of the data transmission method in the correlation technology.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method and device for a multiple-input multiple-output system. Background technique [0002] MIMO (Multiple Input and Multiple Output) technology refers to the technology of transmitting / receiving using multiple antennas in the transmitter / receiver. It is a research hotspot in the field of wireless mobile antennas and is also the next generation mobile communication system. One of the key technologies that must be adopted. MIMO technology can effectively avoid co-channel interference and improve channel quality by using multipath to combat various random channel fading, thereby improving network reliability and communication service quality; by using space resources, it can be realized without consuming On the basis of additional air interface resources (time, frequency), the system capacity and spectrum efficiency are doubled. [0003] MIMO technology has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/24H04B7/02
Inventor 刘广
Owner ZTE CORP
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