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Method for wireless link detection in unlicensed spectrum and communication device

An unlicensed spectrum, wireless link technology, applied in wireless communication, pilot signal allocation, transmission path sub-channel allocation, etc., can solve the problems of wrong judgment, poor accuracy, limited number of downlink reference signals, etc. Accuracy, the effect of improving accuracy, improving communication efficiency and communication quality

Active Publication Date: 2020-05-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited number of downlink reference signals detected within the COT time, the accuracy of RLM using the downlink reference signals detected during the COT time is not good, and there may be misjudgment.

Method used

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  • Method for wireless link detection in unlicensed spectrum and communication device
  • Method for wireless link detection in unlicensed spectrum and communication device
  • Method for wireless link detection in unlicensed spectrum and communication device

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Embodiment Construction

[0058] The technical solution in this application will be described below with reference to the accompanying drawings.

[0059] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long termevolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, the future fifth generation (5th generation, 5G) system or new Wireless (...

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Abstract

The invention provides a method for detecting a wireless link in an unlicensed spectrum and a communication device. The method comprises the steps that terminal equipment determines one or more channel occupation time (COT); the terminal equipment detects a downlink reference signal in the one or more COTs; and the terminal equipment determines whether the channel needs to be reconnected or not according to the downlink reference signal detected in the one or more COTs. According to the method for detecting the wireless link in the unlicensed spectrum provided by the invention, the accuracy ofwireless link detection on the unlicensed spectrum can be ensured, the precision of a wireless link detection result is improved, and a more accurate wireless link detection result can be obtained, so that the communication efficiency and the communication quality are improved.

Description

technical field [0001] This application relates to the communication field, more specifically. The invention relates to a method and a communication device for wireless link detection in an unlicensed frequency spectrum. Background technique [0002] On the licensed spectrum, the terminal equipment accessing the network will continuously monitor the downlink reference signal configured by the network equipment to estimate the connection status of the link with the base station, that is, perform radio link monitoring (RLM). For example, when the reference signal received power (Reference signal received power, RSRP) and / or (reference signal received quality, RSRQ) of the downlink reference signal received by the terminal device is lower than the set threshold value, it is considered that the connection between the terminal device and the network device is If the link between them fails (the link quality is poor), the terminal device subsequently needs to re-perform the rando...

Claims

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Application Information

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IPC IPC(8): H04W74/00H04W74/08H04W76/19H04L5/00
CPCH04W74/006H04W74/0808H04W76/19H04L5/0048H04L5/006H04W16/14
Inventor 吴霁刘建琴朱俊
Owner HUAWEI TECH CO LTD
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