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Fairness-oriented unlicensed frequency band NR-U and WiFi coexistence network carrier selection method

An unlicensed frequency band, NR-U technology, used in wireless communications, electrical components, etc., to ensure fairness, improve user satisfaction, and improve throughput

Active Publication Date: 2020-11-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cellular network and the WiFi system have different channel access mechanisms, it brings challenges to the friendly coexistence of the two systems

Method used

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  • Fairness-oriented unlicensed frequency band NR-U and WiFi coexistence network carrier selection method
  • Fairness-oriented unlicensed frequency band NR-U and WiFi coexistence network carrier selection method
  • Fairness-oriented unlicensed frequency band NR-U and WiFi coexistence network carrier selection method

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings. The present invention provides a fairness-oriented unlicensed frequency band NR-U and WiFi coexistence network carrier selection method, which is implemented according to the following steps:

[0050] (1) Obtain the number of coexisting network users: When a new user arrives in the coexisting network, NR-U gNB obtains the number of NR-U users on each carrier, and uses the Kalman filter method to predict the number of WiFi users for each AP.

[0051] (2) Adjusting the channel occupancy time of NR-U and WiFi systems for fairness: A fairness-oriented F-CSAT mechanism is proposed. This mechanism uses ON / OFF time division multiplexing to provide channel access opportunities for NR-U system and WiFi system, and allows gNB to adaptively adjust the coexistence on each carrier according to the collected information on the number of users on different carriers in the coexistence n...

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Abstract

The invention discloses a fairness-oriented unlicensed frequency band NR-U and WiFi coexistence network carrier selection method. The method comprises the following steps: (1) obtaining the number ofcoexistence network users; (2) performing fairness-oriented adjustment on channel occupation time of an NR-U and WiFi system; and (3) selecting the most suitable carrier for the new user newly arriving at the coexistence network. According to the method, the fairness of coexistence of the NR-U and the WiFi in the unlicensed frequency band is effectively guaranteed, meanwhile, the difference between the channel quality and the load intensity is considered, the most suitable carrier is selected for a new user, and the throughput of a coexistence system is effectively improved.

Description

technical field [0001] The invention relates to the field of co-existence of NR-U system and WiFi system in unlicensed frequency band in mobile communication, in particular to a fairness-oriented non-licensed frequency band NR-U and WiFi coexistence network carrier selection method. Background technique [0002] With the popularization of mobile terminals and the diversification of mobile applications, the data traffic in the network is increasing exponentially, requiring wider bandwidth to improve the capacity of the cellular system, and people's demand for spectrum is increasing day by day. However, resources of licensed frequency bands are increasingly scarce and developing new licensed frequency bands is expensive. Since a large number of available spectrum resources in unlicensed frequency bands are not fully utilized, the globally common unlicensed frequency bands include 2.4GHz, 5GHz and 60GHz. Since 2013, academia and industry have paid attention to the development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/08H04W72/54
CPCH04W72/0453H04W72/52H04W72/54Y02D30/70
Inventor 郑军唐佳欣肖杰
Owner SOUTHEAST UNIV