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Method and device for determining multi-user transmission mode

A transmission mode and multi-user technology, which is applied in the field of determining multi-user transmission mode, can solve the problems of increasing complexity and gaining more than the gain, and achieve the effect of improving spectrum efficiency

Inactive Publication Date: 2017-06-30
CHINA ACAD OF TELECOMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This leads to the combination of large-scale antenna technology and non-orthogonal multiple access technology. The combination of the two technologies is not worth the candle

Method used

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  • Method and device for determining multi-user transmission mode
  • Method and device for determining multi-user transmission mode
  • Method and device for determining multi-user transmission mode

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Embodiment Construction

[0042] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0043] Since the large-scale antenna technology can further improve the spatial isolation between terminals, the terminals can be well distinguished in the airspace. This leads to the combination of large-scale antenna technology and non-orthogonal multiple access technology. The combination of the two technologies is not worth the candle. Therefore, under the premise of reducing the complexity of scheduling and receiving as much as possible, how to effectively combine the two technologies and give full play to their respective advantages is an urgent problem to be solved.

[0044] Therefore, for a system combining multi-antenna and non-orthogonal multiple access, an embodiment of the present invention will propose a method to group terminals based on their channel space characteristics, and use different schemes within and between groups to group The...

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Abstract

The invention discloses a method and a device for determining a multi-user transmission mode. The method comprises the steps of grouping terminals according to the channel space characteristics of the terminals; and allocating a data transmission mode to each terminal, wherein the inter-group terminals transmit data in an MU-MIMO (Multi-User Multiple-Input Multiple-Output) mode on the same scheduling time frequency resource, and the terminals in the same group transmit data in a non-orthogonal multiple access mode in the scheduling time frequency resource. By adopting the method and the device, a large-scale antenna technology and a non-orthogonal multiple access technology can be combined most effectively, so that the spectral efficiency of a system is further improved on the premise that the scheduling complexity is furthest reduced and the receiving complexity is as lower as possible.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and device for determining a multi-user transmission mode. Background technique [0002] Compared with the previous mobile communication systems, the 5th generation mobile communication puts forward higher spectral efficiency requirements. Large-scale antenna technology and non-orthogonal multiple access technology are considered by the industry as enabling technologies to improve spectrum efficiency. Among them, large-scale antenna technology is the most effective technology for improving spectrum efficiency. Supporting multiple antennas with more than 128 channels can increase the system spectrum efficiency by 3-10 times; non-orthogonal multiple access technology is an enhanced spectrum efficiency improvement. technology, which can increase the system spectral efficiency by 30-100%. At present, the 5th generation mobile communication system has explore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456H04B7/0452H04W72/12H04W72/54
CPCH04B7/0452H04B7/0456H04W72/121H04W72/1263H04L5/0025H04L5/0051H04W72/044H04W16/10H04L5/0026H04L5/0037H04B7/0413H04B7/0689H04W74/02H04W72/1215H04W74/006H04L5/0042H04W16/24H04W16/18H04W72/23H04W72/54H04W74/002
Inventor 宋扬康绍莉任斌
Owner CHINA ACAD OF TELECOMM TECH
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