Method and apparatus for power control

By dynamically adjusting the antenna array power, the maximum power is increased based on the number of wireless devices and the overlap area, which solves the interference and rule violation problems in EIRP control and improves MU-MIMO performance and cell coverage.

CN115428528BActive Publication Date: 2026-05-29TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Filing Date
2020-04-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In wireless communication systems, traditional EIRP control methods result in excessive beam power that interferes with other devices, violates regulatory rules, and fails to achieve the maximum allowed EIRP for each UE in MU-MIMO scenarios, affecting cell coverage and performance.

Method used

By dynamically adjusting the antenna array power through network nodes, determining the power backoff value based on the number of wireless devices and the maximum power increase in the overlapping area, and controlling the beam output power, the EIRP is kept within limits and MU-MIMO performance is optimized.

Benefits of technology

It improves cell edge performance, allows MU-MIMO to reach maximum EIRP with any number of UEs, avoids blind overlap penalties, and improves overall system performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115428528B_ABST
    Figure CN115428528B_ABST
Patent Text Reader

Abstract

Embodiments of the present disclosure provide methods and apparatuses for power control. A method implemented at a network node includes determining a power backoff value for a first wireless device based on at least one of: a number of wireless devices including the first wireless device, and a maximum power increase estimated in an overlap region where two or more beams will overlap, wherein wireless devices including the first wireless device are jointly scheduled by the network node, wherein one of the two or more beams is used for the first wireless device. The method further includes transmitting a message or data through the beam for the first wireless device, wherein an output power of the beam for the first wireless device is controlled based on the power backoff value for the first wireless device.
Need to check novelty before this filing date? Find Prior Art