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nb-iot multi-carrier operation in unlicensed ism band

A multi-carrier, carrier technology, used in connection management, electrical components, access restrictions, etc.

Active Publication Date: 2021-11-09
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, unlicensed spectrum must be shared with other devices, and coexistence mechanisms must be established

Method used

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  • nb-iot multi-carrier operation in unlicensed ism band
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  • nb-iot multi-carrier operation in unlicensed ism band

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Embodiment Construction

[0055] figure 1 A typical initialization between the network, ie the base station, and the user equipment (UE) is shown. In a first step, a base station (eNodeB) broadcasts system information on a licensed carrier, while the system information includes configuration data extended by additional information indicating that network access can be performed on an unlicensed carrier. In order to use an unlicensed carrier for transmission, configuration data needs to be added for operation in the unlicensed spectrum with information on supported medium access control (MAC) modes, cycle duty and / or listen before Say (listen-before-talk, LBT) and related parameters, eg, duty cycle budget or energy detection threshold per UE. In addition, allowed carrier frequencies need to be extended to cover unlicensed bands, and the maximum transmission power and bandwidth for uplink transmission need to be registered. If available, the transmission power of the downlink NB-IoT reference symbols ...

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Abstract

The present invention discloses a method for joint multi-carrier operation of Narrowband Internet-of-Things (NB-IoT) in licensed and unlicensed frequency spectrum. The purpose of the present invention is to provide a method that uses existing multi-carrier operation techniques, but can also handle and use ISM bands (unlicensed bands), thus complying with all regulatory requirements, achieved by Additional uplink and / or downlink NB‑IoT carriers operating to extend the existing NB‑IoT regulatory criteria in the licensed spectrum to enable narrowband IoT (NB‑IoT) in both licensed and unlicensed spectrum IoT) approach for joint multi-carrier operation, where additional data depending on the scheduled media access procedure is added to the configuration data, which is broadcast between the base station and the UE to ensure that the UE and the base station side are on Compliance during operation.

Description

technical field [0001] The present invention relates to a method for joint multi-carrier operation of narrowband Internet-of-Thing (NB-IoT) in licensed and unlicensed frequency spectrum. Background technique [0002] Narrowband Internet of Things (NB-IoT) is a recently approved 3GPP standard for the radio interface between base stations (eNodeB) and user equipment (UE) [Reference: 3GPP TS 23.720 Study on architectural enhancements for cellular IoT] . For the UE side, the advantages of NB-IoT are increased coverage, ultra-low power consumption, and reduced equipment cost, while maintaining high security standards and global roaming capabilities for cellular communications. For networks and operators, on the other hand, NB-IoT can support a large number of devices per cell and sector without additional investment in core network and radio access network equipment. Furthermore, NB-IoT supports deployment within the radio spectrum of 3GPP Long Term Evolution (LTE) cells, so no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/10
CPCH04W48/10H04W76/27H04L67/12H04W74/0833H04W72/23
Inventor 马赛厄斯·库尔思马丁·弗勒利希
Owner SHENZHEN GOODIX TECH CO LTD
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