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A multi-user multi-input and output mu-mimo data transmission method and base station

A data transmission method and multi-input technology, which is applied in the multi-user multi-input multi-output data transmission method and the field of base stations, and can solve the problem that the performance of MU-MIMO system has not been significantly improved by SU-MIMO

Active Publication Date: 2020-12-08
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0003] In the prior art, for MU-MIMO, due to the interference problem between paired UEs and the problem of measurement pilot overhead, the system performance of MU-MIMO is not significantly improved compared with SU-MIMO

Method used

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  • A multi-user multi-input and output mu-mimo data transmission method and base station
  • A multi-user multi-input and output mu-mimo data transmission method and base station
  • A multi-user multi-input and output mu-mimo data transmission method and base station

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0043]The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or describ...

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Abstract

Embodiments of the present application provide a MU-MIMO data transmission method and base station, which are used to implement pairing scheduling for UEs and improve resource utilization. It includes: the base station obtains the first precoding matrix indication PMI of the first user equipment UE, the first rank RANK of the first UE is 1, the base station obtains the second PMI of the second UE, the second rank RANK of the second UE is 1, The corresponding weight of the first PMI and the corresponding weight of the second PMI constitute the corresponding weight of the third PMI whose RANK is 2. The base station uses the third PMI to communicate with the paired first UE and the second UE respectively through the same time-frequency resource. For data transmission, the pairing gain of the first UE and the second UE is greater than a preset threshold. In this way, the base station first determines that the gain after the pairing of the two UEs is greater than the threshold, thereby ensuring that the pairing of the two UEs can generate a larger system gain, thereby improving the quality of data transmission between the base station and the two UEs.

Description

technical field [0001] The present application relates to the field of communications, and in particular to a multi-user multiple-input multiple-output (English full name: Multi-User Multiple-Input Multiple-Output, English abbreviation: MU-MIMO) data transmission method and a base station. Background technique [0002] Multiple-Input Multiple-Output (English full name: Multiple-Input Multiple-Output, English abbreviation: MIMO) technology uses multi-antenna technology in base stations and user equipment to suppress channel fading, which can greatly improve channel capacity and network coverage. and spectrum utilization. The MIMO technology includes a multi-user multiple input multiple output MU-MIMO technology and a single user multiple input multiple output (English full name: Single User-Multiple Input Multiple Output, English abbreviation: SU-MIMO) technology. For the MU-MIMO technology, the user equipment (English full name: User Equipment, English abbreviation: UE) fee...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/04H04B7/0452H04L5/0023H04L5/003H04L5/0037H04B7/0639H04B7/0645H04B7/0697H04L5/0053H04L5/0064H04B17/336H04B7/0486H04B7/0632H04L1/0003
Inventor 何龙科
Owner HUAWEI TECH CO LTD
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