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Method and base station for multi-user multiple input multiple output

A multi-input, multi-user technology, applied in the field of wireless communication, which can solve problems such as expensive signal processing

Pending Publication Date: 2021-07-23
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Multi-user MIMO (MU-MIMO) can utilize multiple users as spatially distributed transmission resources, but at the expense of slightly more expensive signal processing

Method used

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  • Method and base station for multi-user multiple input multiple output
  • Method and base station for multi-user multiple input multiple output
  • Method and base station for multi-user multiple input multiple output

Examples

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Embodiment Construction

[0039] In the following description, for purposes of explanation, certain details are set forth in order to provide a thorough understanding of the disclosed embodiments. It is apparent, however, to one skilled in the art that the described embodiments may be practiced without these specific details or with an equivalent arrangement.

[0040] figure 1is a diagram showing an existing wireless communication system in which MU-MIMO can be applied. The wireless communication system may be a Time Division Duplex (TDD) system in LTE 4G or NR 5G. As shown, a wireless communication system includes a base station and a plurality of user equipments (UEs). In a base station, a higher layer (HL) uses a physical layer (PHY) to transmit data and signaling. HL refers to the Open System Interconnection (OSI) layer above layer 2, and PHY refers to OSI layer 1. The data buffer stores uplink (UL) and downlink (DL) data for the UE. The radio resource scheduler assigns radio resources to UEs....

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PUM

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Abstract

A method and a base station are disclosed for multi-user multiple input multiple output (MU-MIMO). According to an embodiment, a base station obtains historical scheduling characteristic information. The base station reserves resources for MU-MIMO users based at least on the historical scheduling characteristic information. The base station allocates the reserved resources to the MU-MIMO users.

Description

technical field [0001] Embodiments of the present disclosure relate generally to wireless communications, and more particularly to methods and base stations for multi-user multiple-input multiple-output (MU-MIMO). Background technique [0002] This section introduces aspects that may facilitate a better understanding of the disclosure. Accordingly, the statements in this section should be read in that sense and should not be construed as an admission of what is or is not prior art. [0003] Massive MIMO (also known as massive antenna system, very large MIMO, ultra-MIMO, full-dimensional MIMO, or ARGOS) works fully coherently and adaptively by using a very large number (such as hundreds or thousands) of service antenna without a clean break with current practice. Additional antennas help by focusing the transmission and reception of signal energy into smaller and smaller areas of space. This leads to huge improvements in throughput and energy efficiency, especially when co...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W28/26H04B7/0452
Inventor 刘春晖刘志涛李静叶宗志毅
Owner TELEFON AB LM ERICSSON (PUBL)
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