MU-MIMO User Equipment Interference Mitigation via Configuration Sharing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In mobile communication networks using multi-user multiple input multiple output (MU-MIMO) technology, intra-cell interference remains a challenge despite advanced beam forming techniques, as paired user equipments share the same time-frequency resources, leading to increased interference and the need for spatial separation.
Innovation Solution
The method involves user equipments receiving transmission configuration information, including non-essential parameters of co-scheduled user equipments, to adapt their reception configurations and reduce interference, with the base station entity providing DMRS ports and modulation coding scheme information to facilitate interference mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MU-MIMO technology is used to serve multiple user equipments simultaneously on the same time-frequency resources, then network capacity and data rates are improved, but intra-cell interference increases
Solution Approach 1:
The patent changes the parameter of transmission configuration information by including non-essential parameters of co-scheduled user equipments (such as DMRS ports and modulation coding scheme information) in the received configuration. This allows user equipments to adapt their reception parameters dynamically, thereby mitigating intra-cell interference while maintaining high network capacity through MU-MIMO technology.
2Productivity
If user equipments are paired for MU-MIMO communication on the same time-frequency resources, then spectral efficiency is improved, but spatial separation requirements increase
Solution Approach 1:
By enabling user equipments to receive and utilize transmission configuration information including parameters of other co-scheduled user equipments, the system can maintain effective spatial separation through parameter adaptation rather than physical distance alone. This allows closer spatial pairing of user equipments while maintaining spectral efficiency through interference mitigation via parameter adjustment.
Data Source
Figure 1~2
AI summary
The invention relates to a method for using a user equipment with a radio access network of or associated or assigned to a mobile communication network, wherein the radio access network comprises at least one base station entity, wherein the base station entity serves the user equipment using multi-user multiple input multiple output, MU-MIMO, technology, in a manner such that, at least regarding specific time-frequency resources of the air interface of the base station entity, both the user equipment and a further user equipment are simultaneously served by the base station entity or provided with transmission resources, wherein, in order to use both the user equipment and the further user equipment with the radio access network using multi-user multiple input multiple output, MU-MIMO, technology, the method comprises the step of -- the user equipment receiving first transmission configuration information in view of applying multi-user multiple input multiple output, MU-MIMO, technology, -- the further user equipment receiving second transmission configuration information in view of applying multi-user multiple input multiple output, MU-MIMO, technology, as well as -- applying multi-user multiple input multiple output, MU-MIMO, technology involving the user equipment and the further user equipment, wherein the first transmission configuration information comprises at least a part of the second transmission configuration information.