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Method and device for self-adaptively pairing uplink multi-input/multi-output

A multi-output, multi-input technology, applied in the field of communication, can solve problems such as low reliability of data transmission, poor link stability, and poor pairing effectiveness

Active Publication Date: 2013-11-06
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] Embodiments of the present invention provide an uplink MIMO adaptive pairing method and device to solve the problem of poor pairing effectiveness, poor link stability, and low data transmission reliability caused by using the existing pairing method for pairing when performing uplink MIMO in the prior art The problem

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  • Method and device for self-adaptively pairing uplink multi-input/multi-output

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Embodiment Construction

[0033] Uplink MIMO is a spatial multiplexing method, which has a close correlation with two user terminals performing uplink MIMO. If the two user terminals can be calculated before pairing the two user terminals Correlation, you can select two user terminals with zero or less correlation for pairing. In this way, the effectiveness and success rate of pairing can be improved. However, there is no technology to estimate the pairing of two terminals Therefore, in order to improve the effectiveness and success rate of pairing, and solve the problems of poor pairing effectiveness, poor link stability and low reliability of data transmission caused by using the existing pairing method when performing uplink MIMO in the prior art , an embodiment of the present invention provides an adaptive pairing method, which implements adaptive pairing in a manner based on a HARQ mechanism.

[0034] Embodiments of the present invention will be described in detail below in conjunction with the ac...

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Abstract

The invention discloses a method and device for self-adaptively pairing uplink multi-input / multi-output (MIMO) and solves the problems of poor pairing efficiency, poor chain path stability and low data transmission reliability in the traditional mode. The method comprises the following steps of: determining a terminal to be paired according to the capability of the user terminal for executing the MIMO and retransmitting information of a hybrid automatic retransmitting request (HARQ) of the user terminal when an event for triggering the pairing is received and the paired period reaches; determining a second terminal to be paired, which is paired with the terminal to be paired and pairing according to an uplink modulation coding index (UIUC) value and paired information of the terminal to be paired; and determining whether to split the pair of the terminal to be paired according to the retransmitting information of the HARQ when the terminal to be paired is paired and the pair splitting period reaches. With the technical scheme disclosed by the invention, the pairing efficiency and the success rate can be improved and the reliability for data transmission can be improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to an uplink MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) adaptive pairing method and device thereof based on an uplink HARQ (Hybrid Automatic Repeat reQuest, ie Hybrid Automatic Repeat Request). Background technique [0002] The MIMO technology is one of the key technologies of the physical layer in an OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access) system. In the MIMO system, the signal S(k) generated by the signal source is transmitted by multiple antennas after time-space encoding, and is received by multiple antennas at the receiving end after passing through the wireless channel, and the receiving end performs time-space decoding on the received signal and restores Get the original S(k) signal. [0003] MIMO technology suppresses channel fading by using multiple antennas. It optimizes multi-path an...

Claims

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Application Information

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IPC IPC(8): H04W48/20H04W76/04H04B7/04H04L1/18
Inventor 赖世明刘广
Owner ZTE CORP
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