Method of multi-user multi-input multi-output frequency selection scheduling of local thermodynamic equilibrium (LTE) system

A multiple-input multiple-output, frequency-selective scheduling technology, applied in the field of communications, can solve problems such as resource waste, user group and rate optimization, and achieve the effect of avoiding waste and maximizing user group and rate
CN103096485AInactive Publication Date: 2013-05-08POTEVIO INFORMATION TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
POTEVIO INFORMATION TECH
Publication Date
2013-05-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method of multi-user multi-input multi-output frequency selection scheduling of a local thermodynamic equilibrium (LTE) system is characterized by including that: users having transmission requirements are lined up according to priority in a transmission time interval (TTI), a user K having the highest priority is chosen; resources are distributed in advance for the user K according to a single user resource distribution scheme; and a user group G is built for the user K on each pre-distributed resource; modulating control system (MCS) regulation is conducted according to user group MCS regulation scheme, single user transmission or multi-user transmission and pre-distribute resource occupation are confirmed according to the user group G and user transmission data quantity. After the method is applied, maximization of user groups and speed is achieved, and waste of resources is avoided.
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Description

technical field

[0001] The present invention relates to the technical field of communications, and more specifically, to a method for multiple-user multiple-input multiple-output frequency selective scheduling in an LTE system. Background technique

[0002] Multiple Input Multiple Output (MIMO) technology can significantly improve wireless spectrum efficiency through spatial multiplexing, and improve link reliability through spatial diversity. Orthogonal Frequency Division Multiplexing (OFDM) technology can convert a frequency selective channel into multiple parallel frequency flat channels. After combining OFDM and MIMO in a multi-user mobile communication system, MIMO processing can be performed on each subchannel of OFDM. The combination of OFDM and MIMO can bring about a huge performance improvement, but it also increases the complexity of resource allocation.

[0003] The multi-user MIMO-OFDM system has degrees of freedom in the frequency domain, air domain and user do...

Claims

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