65 results about "NarrowBand IOT" patented technology

This specification discloses a method for transmitting a demodulation reference signal (DMRS) in a wireless communication system supporting NB (Narrow-Band)-IoT (Internet of Things), the method performed by a User Equipment (UE) including generating a reference signal sequence used for demodulation; mapping the reference signal sequence to at least one symbol; and transmitting the demodulation reference signal (DMRS) to a base station through a single subcarrier in the at least one symbol.

The invention discloses an OTA test system and method for NB-IoT equipment, wherein the system comprises: a darkroom; a rotating platform arranged in the darkroom and used for placing to-be-tested equipment which is narrowband IoT (Internet of Things) equipment based on a cellular network; an annular antenna support frame which is vertically arranged in the darkroom and on which a plurality of antennas are distributed; a control terminal; and a comprehensive test instrument which is connected with the to-be-tested equipment and the control terminal and is used for measuring transmitting performance and receiving performance of the to-be-tested equipment under control of the control terminal. The OTA test system and method provided by the invention solve a technical problem that the OTA test system for the NB-IoT equipment is absent in the prior art.

Provided are a method and an apparatus for allocating a resource of an uplink data channel of the narrowband Internet of things (NB IoT) user equipment to transmit and receive a data using a narrow band. The method may include receiving downlink control information (DCI) including a subcarrier indication field from a base station, configuring a wireless resource of an uplink data channel based on at least one of i) a subcarrier indication field and ii) subcarrier spacing information configured to the NB IoT user equipment, and transmitting an uplink data using a wireless resource of an uplink data channel.

Provided is a method for transmitting an uplink signal by a NarrowBand IoT (Internet of Things) UE and a device therefor. The method may include: receiving downlink data from a base station; generating HARQ ACK / NACK feedback information related to the downlink data; and transmitting the HARQ ACK / NACK feedback information to the base station through a Narrowband Physical Uplink Shared Channel (NPUSCH), wherein the NPUSCH is mapped to a resource unit configured by M subcarriers and K slots.

The present disclosure provides a method and apparatus for determining a path loss, wherein the method is applied to a user equipment, and the user equipment belongs to a narrowband Internet of Thingsdevice, including: determining a transmit power of a downlink narrowband reference signal NRS; determining a narrowband reference signal received power NRSRP The measured value is determined. The base station and the user are determined according to the transmit power of the downlink narrowband reference signal and the measured value of the received power of the narrowband reference signal, if the preset high-layer filter parameter sent by the base station is not received. Path loss between devices. In the method for determining the path loss provided by the present disclosure, in the processof determining the transmit power of the user equipment, the configuration information transmission burden of the base station can be reduced, unnecessary retransmission can be avoided, and power consumption of the narrowband IoT UE can be reduced.

Embodiments described herein include user equipment (UE), evolved node B (eNB), methods, and systems for narrowband Internet-of-Things (IoT) communications. Some embodiments particularly relate to control channel communications between UE and eNB in narrowband IoT communications. In one embodiment, a UE blind decodes a first control transmission from an evolved node B (eNB) by processing a first physical resource block comprising all subcarriers of the transmission bandwidth and all orthogonal frequency division multiplexed symbols of a first subframe to determine the first control transmission. In various further embodiments, various resource groupings of resource elements are used as part of the control communications.

The invention discloses an intelligent lightning monitoring system based on NB-IOT. The system is characterized in that the operating environment, an operating status and surge core parameters of SPDsat all levels are collected by an SPD monitoring module; occurrence of lightning is predicted by a lightning warning module, and the alarm is uploaded; on and off of a power source of special electrical equipment can be remotely operated by a terminal control module, and old surge protectors with faults can be automatically replaced; data communication between an MCU module and other modules is performed; data is transmitted by an NB-IOT wireless transmission module to a cloud server; the NB-IOT network is created based on an NB-IOT base station; the cloud server is used for realizing data storage, calculation and analysis and control instruction issuing and transmitting the alarm and real-time monitoring data for mobile equipment. The system is advantaged in that the system is an intelligent lightning monitoring system which is based on the NB-IOT narrowband IoT technology and has properties of low power consumption, low cost, wide coverage and long distance, system design is reasonable, the intelligent degree is high, the application scope is wide, and the system is easy for realization.

Provided are a method for transmitting a random access preamble in a narrowband-IoT system supporting time division duplexing and an apparatus therefor.Specifically, a method for transmitting a narrowband physical random access channel (NPRACH) preamble by a user equipment in a narrowband-Internet of things (NB-IoT) system supporting time division duplexing may include: receiving, from a base station, configuration information related to an uplink-downlink configuration; and transmitting, to the base station, the NPRACH preamble configured by considering the uplink-downlink configuration.

The embodiment of the invention discloses a method and device for upgrading a narrowband Internet of things (IOT) terminal and relates to the technical field of communication, and the problem of low efficiency in upgrading an NB-IoT terminal in a cell can be solved. The method comprises a step of judging whether a target cell to which the first terminal belongs has a terminal which is upgraded nowwhen service data sent by a first terminal is received, a step of sending an immediate upgrade command to the first terminal if the target cell does not have the terminal which is upgraded now, and astep of sending a delayed upgrade command to the first terminal if the target cell has the terminal which is upgraded now, wherein the delayed upgrade command comprises an upgrade time or a delay time. The embodiment of the present invention is applicable to a process of upgrading the narrowband IOT terminal.

The invention relates to the field of wireless communication, and especially relates to a terminal positioning method and device based on a narrowband IOT (Internet of Things). The method comprises the steps that a positioning server receives time deviation values sent by at least three base stations corresponding to a terminal, wherein the time deviation value sent by one base station representsthe deviation between the receiving time when the base station receives an access message and the start time of a wireless frame head of the base station, and the access message is transmitted by theterminal to the base station based on a positioning request; the positioning server calculates the position of the terminal based on the position information of at least three base stations and the received time deviation values sent by at least three base stations. Therefore, the terminal sequentially transmits the access message to the base stations in turns, thereby completing the positioning based on the position information of the base station and the time deviation values, avoiding the power consumption of the terminal, and guaranteeing the positioning precision. Meanwhile, there is no need of additional cost.

The invention discloses an Internet-of-ships system and Internet-of-ships method based on a honeycomb narrowband Internet of things (IOT). The system comprises a ship information acquisition sensor, aship automatic identification module, a master control module, a honeycomb narrowband IOT communication module, an application server, a client and a cabin parameter acquisition module. In the present invention, the client is connected to the application server, and crew members can monitor a ship and send instruction information to the master control module through the client such as a computer,a mobile phone and a tablet computer. Through a real-time ship information monitoring system, the crew members and remote staff can timely grasp the operating state of the ship, thus the informationacquisition is more convenient, the working efficiency of the crew members and the remote staff is improved, and the applicability of the Internet of ships is greatly enhanced. The honeycomb narrowband Internet of things has the characteristics of wide coverage, low cost, a large capacity, low power consumption, multiple connection points and a fast transmission speed.

Provided are a method and an apparatus for allocating a resource of an uplink data channel of the narrowband Internet of things (NB IoT) user equipment to transmit and receive a data using a narrow band. The method may include receiving downlink control information (DCI) including a subcarrier indication field from a base station, configuring a wireless resource of an uplink data channel based on at least one of i) a subcarrier indication field and ii) subcarrier spacing information configured to the NB IoT user equipment, and transmitting an uplink data using a wireless resource of an uplink data channel.

According to some embodiments, a method for use in a frequency-hopping wireless transmitter for transmitting in unlicensed spectrum comprises: obtaining a configuration for a plurality of frequency channels in unlicensed spectrum; and transmitting a data transmission according to a frequency-hopping pattern across the plurality of frequency channels. The configuration for the plurality of frequency channels comprises a first subset of frequency channels for downlink transmission and a second subset of frequency channels for uplink transmission. The frequency channels in the first and second subsets are mutually exclusive. In some embodiments the first and second subset of frequency channels each comprise 160 frequency channels in the 2.4 GHz band, or 50 frequency channels in the 915 MHz band.

The invention discloses a passive remote control device based on narrow-band Internet of Things and a method for using the same. The narrow-band Internet of Things module realizes long-distance data communication and remote control of a controlled device. The invention realizes ultra-long-distance remote control through the combination of narrow-band Internet of Things communication technology and passive magnetic device. There is no regional restriction; there is no maintenance or replacement cost of power supply or battery, and there is no battery environmental pollution and other problems; at the same time, it can be combined with platform interaction, in addition to realizing one-to-many, many-to-one or many-to-many implementations of remote control devices, you can also Simultaneously realize the interaction with the remote platform, and store the time and behavior of the remote command action to achieve the purpose of traceability and evidence collection. The invention has low cost, practical application value and broad market prospect.

The present invention discloses a narrowband IOT wireless link protocol sub-layer AM entity data transmission adaptive method, which comprises the following steps: step 1, an AM receiving entity acquires the number n of the currently transmitted status reports NACKs; step 2, the AM receiving entity, according to the number n of the NACKs, a reordering timer t-reordering and the system-allowed maximum transmission delay, calculates and updates the value of a status prohibition timer t-StatusProhibit parameter; step 3, an AM transmission entity calculates a threshold of triggering polling according to the sliding window length, the channel transmission rate s and a polling retransmission timer t-PollRetransmit, compares the threshold with the number of PDUs in the current transmit buffer, and triggers the polling when the threshold is greater. Such a method can solve the problems of low throughput, large delay, and sliding window blocking during data transmission.

Disclosed are a detailed method and apparatus for receiving multicast data by an IoT UE required to operate with low power and at low cost. Further disclosed are a method and an apparatus for processing multicast data by a Bandwidth-reduced Low-complexity (BL) UE, a Coverage-Enhancement (CE) UE, or a NarrowBand-IoT (NB-IoT) UE. A method of receiving single-cell multicast data by a UE includes receiving carrier information for Single Cell-Multicast Control Channel (SC-MCCH) reception through system information, monitoring SC-MCCH scheduling information on a PDCCH based on the carrier information, and receiving an SC-MCCH on a PDSCH based on the SC-MCCH scheduling information. The UE is configured to be allowed to access a network service having a channel bandwidth limited to 200 kHz or lower or to operate in a bandwidth limited to 6 PRBs.

The invention relates to an application system of a cellular-based narrowband IOT in medium pipeline monitoring, and can effectively realize the facts that a medium pipeline can be monitored and the pipeline use security can be ensured. The technical scheme is as follows: the information acquisition end of a pressure sensor is connected with the signal input end of an intelligent terminal; the intelligent terminal and an operator base station are in wireless communication connection; the operator base station and an operator server are in wireless communication connection; the operator serverand a data processing centre server are in wireless communication connection; and the data processing centre server and a mobile phone are in wireless communication connection. The application systemdisclosed by the invention is novel and unique in structure, and convenient to install and use; due to application in medium pipeline monitoring, real-time transmission between a terminal and a mobiledata terminal is realized through the narrowband IOT according to user requirements; the user use cost is reduced; the user use function is enhanced; the application system has the advantages of massive connection, deep coverage, ultra-low power consumption and low cost, and is an innovation of the narrowband IOT on pipeline application; and thus, the application system has great economic and social benefits.

A method, apparatus, and system for data transmission, wherein the method comprises: the network-side network element determining the target data transmission mode; the network-side network element sending instruction information to the terminal through the base station transmission in order to instruct the terminal to switch to the target data transmission mode with which to implement data transmission; wherein, the target data transmission mode is NarrowBand IoT (NB-IoT) data transmission or Long-Term Evolution (LTE) data transmission.

The invention provides a method for improving the communication success rate of a NB-IOT single lamp controller and relates to the technical field of a single lamp control system with NB-IOT (narrowband IOT) communication. Due to the narrowband nature of the NB-IOT communication, the requirements of grid connection and line access at the same time when a streetlight is turned on are not satisfied.According to the invention, in the process of the mass sending of communication commands by monitoring platform software, the peak shifting processing such as different batches, different times and hopping is used, and the communication success rate is improved with the combination of a heartbeat response mechanism. When the monitoring platform software performs the mass sending of the communication commands to a single lamp controller of a same road segment, at the same time, a command sequence to be subjected to mass sending is broken into a plurality of sub-sequences of a small number of sizes, the sub-sequences are transmitted in batches, and the limitation of the processing ability of a NB base station is avoided. When the monitoring platform software receives a heartbeat packet of aNB-IOT single-lamp controller, the monitoring platform software actively performs the command issuing operations including condition query, parameter query, parameter modification and lamp switchingcontrol. According to the invention, the communication success rate of the NB-IOT single-lamp controller is greatly improved without increasing the deployment number of NB base stations.

The invention discloses an information configuration method and device, a determination method and device of receiving power, a base station, narrowband Internet of Things (IoT) equipment, and a computer readable storage medium. The information configuration method includes the steps: configuring a high-level filter coefficient value for the narrowband IoT equipment accessing the current network;and transmitting the high-level filter coefficient value to the narrowband IoT equipment. For the information configuration method, by configuring the high-level filter coefficient value for the narrowband IoT equipment accessing the current network and transmitting the high-level filter coefficient value to the narrowband IoT equipment, the narrow-band IoT equipment can determine the narrowband reference signal receiving power after current high-level filtering according to the high-layer filter coefficient value.

The application relates to mobile network coverage detection equipment and system. The mobile network coverage detection equipment comprises a processor, a detection circuit and a narrowband IoT (Internet of Things) communication circuit; and a data transmission port of the processor is connected with the detection circuit, and a communication port is connected with the narrowband IoT communication circuit. The narrowband IoT communication circuit is used for being connected with an IoT server. The detection circuit comprises a signal coverage intensity detection circuit and a positioning circuit; and the signal coverage intensity detection circuit and the positioning circuit are connected with the data transmission port. By the narrowband IoT communication circuit, an external server cantransmit an operation instruction and / or detection data with the mobile network coverage detection equipment anytime and anywhere; and on the basis of the structure, a network coverage effect, signalcoverage intensity and signal quality can be timely detected, the mobile network coverage detection equipment and system are convenient to test, a complain of a user can be timely responded to, and manpower and material resource cost of network optimization is reduced.

The invention discloses a full-electronic interlocking remote monitoring and diagnosis system based on a narrowband IOT (Internet of Things). The full-electronic interlocking remote monitoring and diagnosis system comprises a full-electronic execution unit, a monitoring communication extension set, a remote communication unit, a cloud platform and a user terminal, which are connected in sequence.The narrowband IOT communication module is arranged in the remote communication unit. The monitoring data acquired by the full-electronic execution unit is transmitted to the remote communication unitthrough the monitoring communication extension set and is uploaded to the cloud server through the remote communication unit, so that the user terminal can check the corresponding monitoring data. After the cloud server receives a command issued by the user terminal, the command is sent to the full-electronic execution unit through the remote communication unit and the monitoring communication extension set, and the full-electronic execution unit generates latest feedback monitoring data. The system solves the problem that the current full-electronic interlocking equipment state cannot be fedback to electric service maintenance workers in time under the condition that economy and convenience are taken into consideration.

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.

The invention provides a geotechnical monitoring method, device and system based on the NB-IoT narrowband IOT (Internet of Things). Different hardware sampling circuits are selected according to configuration, and the device can collect various types of sensor signals (such as frequency, voltage, current, etc.) at the front end, and calculates measured physical quantities (such as strain stress, displacement, settlement, tilt angle, etc.) through a built-in calibration scale, and can be connected with many types of sensors from multiple manufacturers. The wireless communication uses NB-IoT narrowband Internet network, and the NB-IoT has the advantages of wide coverage, massive connection, lower power consumption, low cost, etc. Each sensor directly communicates with the platform through the device, and there is no need to design a bus circuit, and avoids the trouble and cost of the charging of bus wiring. A lithium battery is employed as a power supply, and the commercial power or a solar cell panel does not need to be connected, thereby reducing the power supply cost, avoiding the damages to the power supply, and avoiding the disadvantages that the power supply is not stable and the cost in power compensation is high. The entire device is small in size.

The embodiment of the present application discloses an access control unlocking method and device based on NB-IoT. The technical solution provided by the embodiment of the present application provides access control QR codes that change over time through wireless access control. The user terminal scans the access control QR code to obtain the target access control information and sends an access control unlock request. After receiving the access control unlock request from the user terminal According to the target access control information and user information carried in the access control unlock request, the access control verification is performed and the corresponding access control verification result is returned to the NB-IoT gateway. The access control QR code that changes over time can reduce the situation that users who take photos and record the access control QR code to remotely unlock the wireless access control, which causes users who do not carry user terminals to pass through the wireless access control, effectively ensuring the security of the wireless access control.

An embodiment of the present application provides a signal-to-noise ratio evaluation method, device, device, and storage medium. The method includes: obtaining the feature value of the terminal point of the narrowband Internet of Things to be tested, and the feature corresponding to the feature value is used to represent the terminal point The characteristic of the narrowband Internet of things at place; Based on the signal-to-noise ratio evaluation model, the signal-to-noise ratio of the terminal point of the narrowband Internet of things to be tested is evaluated, and the signal-to-noise ratio value of the terminal point of the narrowband Internet of things to be measured is obtained, The signal-to-noise ratio evaluation model is obtained by using the least squares deviation model training with the eigenvalue and signal-to-noise ratio of each preset narrowband Internet of Things terminal point among a plurality of preset narrowband Internet of Things terminal points as training samples . The method provided by the embodiment of the present application can solve the problem in the prior art that the network signal-to-noise ratio index cannot be obtained effectively, which in turn leads to high maintenance and optimization costs and low efficiency.