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A power adjustment method and device in an uplink multi-user system

A multi-user system and power adjustment technology, applied in power management, wireless communication, electrical components, etc., can solve problems such as channel quality degradation

Active Publication Date: 2020-03-31
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the signals come from different user equipments and pass through different channels, the degree of mutual interference between the user equipments is different, but for the user equipments, it is not known whether there are other user equipments using the same time-frequency resources as itself, only the NodeB (base station ) side MU-MIMO will form interference between multi-user equipment, and the interference between user equipment will cause the channel quality of paired user equipment to decrease compared with unpaired

Method used

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  • A power adjustment method and device in an uplink multi-user system
  • A power adjustment method and device in an uplink multi-user system
  • A power adjustment method and device in an uplink multi-user system

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Embodiment 1

[0067] Embodiment 1. A power adjustment method and device in an uplink multi-user system, such as figure 1 shown, including:

[0068] S110, filter out one or more of the following parameters to meet the predetermined conditions corresponding to the user equipment: pairing probability, traffic, channel quality;

[0069] S120. Reduce the transmit power of the screened user equipments.

[0070] In this embodiment, the pairing probability, flow rate, and channel quality each have their own corresponding predetermined conditions.

[0071] Optionally, in S110, user equipments whose pairing probability, flow rate, and channel quality all meet corresponding predetermined conditions are screened out.

[0072] In other optional solutions, it is also possible to filter out only user equipments that meet corresponding predetermined conditions in any one or two of pairing probability, flow rate, and channel quality.

[0073] Optionally, step S120 includes:

[0074] The transmit power o...

Embodiment 2

[0137] Embodiment 2. A power adjustment device in an uplink multi-user system, such as Figure 5 shown, including:

[0138] A selection module 51, configured to filter out one or more of the following parameters to meet the predetermined conditions corresponding to the user equipment: pairing probability, traffic, channel quality;

[0139] The power adjustment module 52 is configured to reduce the transmit power of the screened out user equipments.

[0140] Optionally, the selection module 51 filters out one or more of the following parameters to meet the predetermined conditions corresponding to the parameters of the user equipment refers to:

[0141] The selection module 51 screens out user equipments whose pairing probability, flow rate, and channel quality meet corresponding predetermined conditions.

[0142] Optionally, as in Image 6 As shown, the selection module 51 includes:

[0143] A statistical unit 511, configured to count the pairing probability, traffic, and ...

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Abstract

The present disclosure provides a power adjustment method and device for an uplink multi-user system. The method comprises: selecting a user equipment (UE) having one or more of the following parameters satisfying a predetermined condition corresponding to the parameter: a pairing probability, throughput and channel quality; and reducing a transmission power of the selected UE.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a power adjustment method and device in an uplink multi-user system. Background technique [0002] In a wireless communication system, in order to improve data transmission rate and system throughput, it is an effective solution to adopt MIMO (Multi-Input and Multi-Output, multiple input and multiple output) technology. [0003] Uplink MU-MIMO (Multi-User Multi-Input and Multi-Output, multi-user multiple-input multiple-output) system, the base station selects two or more UEs (User Equipment, user equipment) in the same time-frequency resource Data is transmitted in blocks, and V-MIMO (Virtual Multi-Input and Multi-Output, virtual multiple-input multiple-output) transmission is performed. The base station side selects and calculates UE pairs according to a certain strategy, and schedules multiple UEs to use the same Wireless resource transmission to achieve the purpose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/04H04W52/28
CPCH04W52/146H04W52/241H04W52/28H04W52/18
Inventor 许倩倩
Owner ZTE CORP
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