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A method for coexistence of different communication networks using license-free frequency bands

A communication network and authorization-free technology, which is applied in wireless communication, network planning, power management, etc., can solve problems such as the normal operation of the WiFi system, and achieve the effect of improving the utilization rate of authorization-free channels, wide coverage, and easy implementation

Inactive Publication Date: 2020-03-10
SHANGHAI RES CENT FOR WIRELESS COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method only involves the adjustment of the transmit power of the LTE system, and does not involve the adjustment of the LTE bandwidth, and there is no WiFi feedback mechanism to ensure the normal operation of the WiFi system

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  • A method for coexistence of different communication networks using license-free frequency bands
  • A method for coexistence of different communication networks using license-free frequency bands
  • A method for coexistence of different communication networks using license-free frequency bands

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Embodiment Construction

[0048] The technical content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] First of all, it needs to be explained that the embodiments provided by the present invention are mainly described for an application scenario where the first network is a cellular network and the second network is a wireless local area network. However, the technical ideas provided by the present invention can also be applied to application scenarios where other communication networks such as cellular networks and the Internet of Things coexist in the 5G network.

[0050] When the LTE system is deployed in the license-free spectrum, if LTE-U uses licensed assisted access for communication, the primary cell (PCell) is deployed in the licensed frequency band, and the secondary cell (SCell) is deployed in the license-free frequency band; if LTE-U uses unlicensed For auxiliary access to communicate, PCells (possib...

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Abstract

Disclosed is an unlicensed band access method for coexisting different communication networks. The method comprises the following steps: when an unlicensed subchannel is idle, using, by a first network, a first transmission bandwidth, and when data is transmitted in the unlicensed subchannel, using, by the first network, a second transmission bandwidth, wherein the first transmission bandwidth is greater than the second transmission bandwidth; when the unlicensed subchannel is idle, using, by the first network, a first transmit power, and when data is transmitted in the unlicensed subchannel, using, by the first network, a second transmit power, wherein the first transmit power is greater than the second transmit power. In the invention, adjusting a transmission bandwidth and a transmit power of a first network ensures normal operation of a second network in an unlicensed band, allows co-existence of different communication networks deployed in the unlicensed band, and increases a utilization efficiency of the unlicensed band.

Description

technical field [0001] The invention relates to a method for using license-free frequency bands in coexistence of different communication networks, and belongs to the technical field of wireless communication. Background technique [0002] Authorized frequency bands are frequency bands reserved for spectrum resources to be used by the system. The unlicensed frequency band does not require authorization, as long as the device meets the power transmission requirements of the unlicensed frequency band, it can be used according to the principle of coexistence. No operator can exclusively use the license-free frequency band. [0003] As a next-generation mobile communication network, 5G network has the characteristics of high speed, low latency and low power consumption, and can meet the connection needs of various Internet of Things devices in the next 10 years. In the 5G network, there are still a large number of unlicensed frequency bands. Using unlicensed frequency bands to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/24H04W52/50H04W72/12H04W16/14H04W52/22H04W52/28
CPCH04W16/14H04W52/228H04W52/24H04W52/242H04W52/243H04W52/283H04W52/50H04W72/1215
Inventor 杜金玲王江
Owner SHANGHAI RES CENT FOR WIRELESS COMM