CN109041081A - A method of improving NB-IoT terminal device energy utilization efficiency - Google Patents

A method of improving NB-IoT terminal device energy utilization efficiency Download PDF

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Publication number
CN109041081A
CN109041081A CN201810816727.5A CN201810816727A CN109041081A CN 109041081 A CN109041081 A CN 109041081A CN 201810816727 A CN201810816727 A CN 201810816727A CN 109041081 A CN109041081 A CN 109041081A
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mobile terminal
base station
data
connection
utilization efficiency
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CN201810816727.5A
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CN109041081B (en
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刘昊
任忆
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Southeast University - Wuxi Institute Of Technology Integrated Circuits
Southeast University
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Southeast University - Wuxi Institute Of Technology Integrated Circuits
Southeast University
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

The present invention discloses a kind of method for improving NB-IoT terminal device energy utilization efficiency, step is: after connection is established with mobile terminal in base station, the total amount of data that DL-DCCH logic channel is successfully transmitted under state is established in base station statistics mobile terminal connection, and mobile terminal then counts connection and establishes the total amount of data that DL-DCCH logic channel is properly received under state；After connection disconnects, base station and mobile terminal calculate average value and variance according to current total amount of data and each record before respectively；Base station and mobile terminal judge whether variance is greater than preset threshold respectively, if being less than, average value are used to finish receiving parameter as prediction respectively；Base station and mobile terminal are established after connection again, after receiving data volume more than or equal to predicting to finish receiving parameter, are shortened and are entered the dormant time, and extend dormancy time.Such method can no longer receive the long dormancy time of data delay in prediction by predicting internet of things equipment amount of communication data, to achieve the purpose that reduce power consumption.

Description

A method of improving NB-IoT terminal device energy utilization efficiency
Technical field
The invention belongs to mobile communication field field, in particular to a kind of raising NB-IoT terminal device energy utilization efficiency Method.
Background technique
In the prior art, when mobile terminal is carried out data transmission using 4G network, activation pattern can be in.Under completing every time After row data receiver, deactivation timer will start, if not receiving data before deactivating timer and overflowing, can enter non- Continuous reception pattern carries out data receiver；In the period of a discontinuous reception, it is divided on duration stage and sleep Stage, terminal are only monitored in the on duration stage and receive the data of physical downlink control channel PDCCH, and in sleep rank Section, mobile terminal in a dormant state, close RF receiving and transmission module, achieve the purpose that have both data transmission and power saving with this.
With the development of mobile communications network, the demand supported internet of things equipment is continuously increased.However, being different from mobile phone Equipment, internet of things equipment have more harsh requirement to energy utilization efficiency.Discontinuous reception algorithm is as radio link layer For optimizing a kind of important method of energy utilization efficiency, in NB-IOT agreement newest, specifically for Internet of Things application, Only discontinuous reception algorithm has been done and has a little been simplified, has not been optimized targetedly for Internet of Things application data characteristics. So that current mobile communication protocol for the extremely internet of things equipment of emphasis energy utilization efficiency, is also significantly improved remaining Ground.
Based on the above analysis, thus this case generates.
Summary of the invention
The purpose of the present invention is to provide a kind of method for improving NB-IOT terminal device energy utilization efficiency, Neng Goutong It crosses and internet of things equipment amount of communication data is predicted, the long dormancy time of data delay is no longer received in prediction, to reach Reduce the purpose of power consumption.
In order to achieve the above objectives, solution of the invention is:
A method of NB-IoT terminal device energy utilization efficiency is improved, is included the following steps:
Step 1, after base station and mobile terminal establish connection, DL-DCCH under state is established in base station statistics mobile terminal connection The total amount of data S that logic channel is successfully transmittedxe, mobile terminal then counts connection and establishes under state the success of DL-DCCH logic channel Received total amount of data Sxu；
Step 2, it is connect in base station with mobile terminal after disconnection, base station and mobile terminal are respectively according to current Sxe、Sxu With the S of each record beforexe、SxuCalculate average value Sxea、SxuaWith variance Dxe、Dxu；
Step 3, base station and mobile terminal judge D respectivelyxe、DxuWhether preset threshold is greater than, if more than then expression cannot be right Data volume is received to be predicted；If being less than, S is used respectivelyxea、SxuaParameter is finished receiving as prediction；Base station and movement are eventually End is established after connection again, and after receiving data volume more than or equal to predicting to finish receiving parameter, shortening enters dormant Time, and extend dormancy time.
In above-mentioned steps 3, the method to data volume prediction is: according to statistics sending and receiving data amount, data are calculated, from And judge whether terminal can be predicted, and obtain predicted value.
By calculating average value and variance to statistical data, judge whether to predict data by variance, then Predicted value is obtained according to average value.
In above-mentioned steps 3, shortens and enter the dormant time, and the method for extending dormancy time is: base station and movement Terminal respectively modifies to discontinuous reception parameters drx-InactivityTimer and drx-Cycle in MAC layer, by drx- InactivityTimer parameter changes small, and drx-Cycle parameter changes greatly；It can be by drx-InactivityTimer parameter when implementing Change to minimum, drx-Cycle parameter changes to maximum, to reach promotion energy utilization efficiency maximum efficiency.
In above-mentioned steps 3, in the dormant state, the RF receiving and transmission module of mobile terminal is closed.
After adopting the above scheme, applicable object of the invention includes but is not limited to the Internet of Things for using the NB-IOT communication technology Equipment, when the data receiver mode that mobile terminal is currently opened is discontinuous reception modes, after statistics establishes connection each time Data receiver amount shorten when data receiver reaches prediction threshold value and enter the dormant time, and extend dormancy time. In the case that the present invention is for data volume variation less, power consumption can be reduced, promotes energy utilization efficiency.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is the schematic illustration of discontinuous reception of the present invention.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention and beneficial effect are described in detail.
As shown in Figure 1, the present invention provides a kind of method for improving NB-IoT terminal device energy utilization efficiency, mobile whole After connection is established in end X and base station, energy utilization efficiency is improved by prediction data reception amount, is specifically comprised the following steps:
Step 1, after establishing connection each time, DL-DCCH logic channel under state is established in base station statistics mobile terminal X connection The total amount of data S being successfully transmittedxe, mobile terminal X then counts connection and establishes the number that DL-DCCH logic channel under state is properly received According to total amount Sxu, ideally, the number that base station should be properly received the data volume that mobile terminal X is successfully transmitted with mobile terminal X It is equal according to measuring, the total amount of data that base station and terminal record is referred to as Sx；
Step 2, it connect in base station each time with mobile terminal after disconnection, base station and mobile terminal are respectively according to current SxWith the S of each record beforexCalculate average value SxaWith variance Dx；
Step 3, base station and mobile terminal judge D respectivelyxWhether it is greater than preset threshold, is received if more than the terminal is then represented Data complexity is higher, cannot predict data volume is received.If being less than, S is usedxaParameter is finished receiving as prediction； Mobile terminal and base station are established after connection again, are more than or equal to S when receiving data volumexaAfterwards, base station and terminal are all respectively to MAC Discontinuous reception parameters drx-InactivityTimer and drx-Cycle modify in layer, by drx- InactivityTimer parameter change it is small, drx-Cycle parameter change greatly, so as to shorten enter the dormant time, and extend stop It sleeps the time.In the dormant state, the RF receiving and transmission module of terminal is closed, to achieve the purpose that reduce power consumption.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (5)

1. a kind of method for improving NB-IoT terminal device energy utilization efficiency, it is characterised in that include the following steps:
Step 1, after base station and mobile terminal establish connection, DL-DCCH logic under state is established in base station statistics mobile terminal connection The total amount of data S that channel is successfully transmittedxe, mobile terminal, which then counts connection, to be established under state DL-DCCH logic channel and is properly received Total amount of data Sxu；
Step 2, it is connect in base station with mobile terminal after disconnection, base station and mobile terminal are respectively according to current Sxe、SxuTherewith The S of each time preceding recordxe、SxuCalculate average value Sxea、SxuaWith variance Dxe、Dxu；
Step 3, base station and mobile terminal judge D respectivelyxe、DxuWhether preset threshold is greater than, if more than then expression cannot be to reception Data volume is predicted；If being less than, S is used respectivelyxea、SxuaParameter is finished receiving as prediction；Base station and mobile terminal are again It is secondary to establish after connection, after receiving data volume more than or equal to predicting to finish receiving parameter, shortens and enter the dormant time, And extend dormancy time.
2. a kind of method for improving NB-IoT terminal device energy utilization efficiency as described in claim 1, it is characterised in that: institute It states in step 3, the method to data volume prediction is: according to statistics sending and receiving data amount, data being calculated, to judge terminal Whether can be predicted, and obtain predicted value.
3. a kind of method for improving NB-IoT terminal device energy utilization efficiency as described in claim 1, it is characterised in that: institute It states in step 3, judges whether to predict data by variance, obtain predicted value further according to average value.
4. a kind of method for improving NB-IoT terminal device energy utilization efficiency as described in claim 1, it is characterised in that: institute It states in step 3, shorten and enter the dormant time, and the method for extending dormancy time is: base station and mobile terminal are right respectively Discontinuous reception parameters drx-InactivityTimer and drx-Cycle modify in MAC layer, by drx- InactivityTimer parameter changes small, and drx-Cycle parameter changes greatly.
5. a kind of method for improving NB-IoT terminal device energy utilization efficiency as claimed in claim 4, it is characterised in that: will Drx-InactivityTimer parameter changes to minimum, and drx-Cycle parameter changes to maximum.
CN201810816727.5A 2018-07-24 2018-07-24 Method for improving energy utilization efficiency of NB-IoT terminal equipment Active CN109041081B (en)

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CN112398527A (en) * 2020-11-03 2021-02-23 上海擎昆信息科技有限公司 Control method and system for enabling satellite system to rapidly enter sleep state

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Publication number Priority date Publication date Assignee Title
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