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
CN102045817BActive Publication Date: 2013-11-06ZTE CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ZTE CORP
Publication Date
2013-11-06

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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.
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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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