CN111405479A - Positioning tracking method and system - Google Patents

Positioning tracking method and system Download PDF

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Publication number
CN111405479A
CN111405479A CN201910000973.8A CN201910000973A CN111405479A CN 111405479 A CN111405479 A CN 111405479A CN 201910000973 A CN201910000973 A CN 201910000973A CN 111405479 A CN111405479 A CN 111405479A
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China
Prior art keywords
subsystem
sleep mode
mobile terminal
terminal
information
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CN201910000973.8A
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Chinese (zh)
Inventor
罗达
郑康
舒余庭
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Priority to CN201910000973.8A priority Critical patent/CN111405479A/en
Priority to PCT/CN2020/070002 priority patent/WO2020140922A1/en
Publication of CN111405479A publication Critical patent/CN111405479A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
    • 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
    • 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
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • 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]
    • 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

Abstract

The invention provides a positioning tracking method and a positioning tracking system, and belongs to the technical field of wireless communication. The localization tracking system comprises: the terminal subsystem is arranged on the mobile terminal and used for periodically acquiring the current position information and the speed information of the mobile terminal and sending the current position information and the speed information to the service management platform subsystem through the cellular Internet of things subsystem; the cellular Internet of things subsystem is used for connecting the terminal subsystem and the service management platform subsystem; the service management platform subsystem is used for controlling whether the terminal subsystem enters a sleep mode or not according to the current position information, the speed information and a preset sleep mode parameter; and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal. The invention can reduce the power consumption of the mobile terminal.

Description

Positioning tracking method and system
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a positioning and tracking method and system.
Background
In recent years, positioning and tracking equipment is combined with pet loss prevention, vital sign monitoring and cold-chain logistics, and positioning and tracking end-to-end service is realized by means of communication technologies such as Bluetooth, 2G/GPRS, ZigBee, L ora and the like, so that the positioning and tracking equipment becomes a research hotspot.
In the prior art, the following techniques and steps are generally used:
1. acquiring positioning coordinate data through a positioning system (such as a GPS global positioning system and a Beidou);
2. acquiring movement speed and movement counting data through a three-axis acceleration sensor;
3. acquiring human vital sign data such as heartbeat and blood pressure and the like through a human vital sign sensor;
4. the man-machine interaction shortcut function is realized through the smart phone, and the identity authentication function is provided;
5. the power is supplied by adopting the modes of a storage battery, USB charging, solar energy-to-electric energy conversion and the like;
6. the signal transmission between the device and a data access network is realized through a radio frequency module, WIFI, Bluetooth, zigbee, GPRS/GSM, L ORA and the like are supported, wireless networking is realized, and the wireless networking is transmitted to a remote server, a mobile phone APP and the like for display and management;
7. and transmitting the monitoring information to the service platform through the mobile communication technology.
In the prior art:
(1) the endurance time of the localization tracking product is generally within 3 months, and the standby capability of the product is difficult to meet the scene experience in the use scenes of cold-chain logistics, field operation personnel wearing and the like.
(2) The transmission distance is short, the wide activity space is difficult to cover, and the user experience has certain limitation.
(3) The anti-interference capability of terminal communication data transmission is not strong, and the operation and maintenance cost of the system data transmission device is high.
(4) Data cannot be centrally managed and is distributed to a single wearing object device.
The existing technical scheme has the problem of short standby time, the main reason is that the power consumption consumed when the positioning and tracking equipment communicates with the base station is too high, and the main reasons include:
1. the positioning tracking mainly depends on the GPS high frequency to obtain accurate longitude and latitude information, the difference of the position and the moving speed of a positioning object is usually not considered, the communication frequency is very high, and the power consumption of a GPS navigation chip and a peripheral circuit is generally high.
2. The communication signaling interaction flow between the positioning terminal and the base station is complex, the terminal can continuously schedule communication control plane data through a full duplex mechanism after being connected to the network, a general timing mechanism which is not fine enough is designed for preventing network signaling storm on the network side, and more electric quantity is consumed by complex data packet interaction, a communication signal power intensity monitoring mode, cell reselection and switching mechanism.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a positioning tracking method and a positioning tracking system, which can reduce the power consumption of a mobile terminal.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, an embodiment of the present invention provides a localization tracking system, including:
the terminal subsystem is arranged on the mobile terminal and used for periodically acquiring the current position information and the speed information of the mobile terminal and sending the current position information and the speed information to the service management platform subsystem through the cellular Internet of things subsystem;
the cellular Internet of things subsystem is used for connecting the terminal subsystem and the service management platform subsystem;
the service management platform subsystem is used for controlling whether the terminal subsystem enters a sleep mode or not according to the current position information, the speed information and a preset sleep mode parameter;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
Further, the terminal subsystem includes:
the positioning unit is used for periodically acquiring the current position information and the speed information of the mobile terminal;
the communication unit is used for establishing communication with the cellular Internet of things subsystem and sending the current position information and the speed information to the service management platform subsystem through the cellular Internet of things subsystem;
the storage battery unit is used for supplying power to each unit;
and the micro-control processing unit is used for controlling the working state of each unit.
Further, the cellular internet of things subsystem comprises:
a base station eNB, a mobility management entity MME, a service gateway S-GW and a PDN gateway P-GW.
Further, the communication unit is further configured to negotiate sleep mode parameters with the MME.
Further, the micro-control processing unit is specifically configured to control the communication unit to close signal transceiving and access functions, monitor received signal power strength, measure arrival time differences of multiple cells, and calculate current location information of the mobile terminal when the communication unit is in a dormant state.
Furthermore, the storage battery unit adopts a power supply mode of a double-battery power supply to independently supply power to the positioning unit.
Further, the service management platform subsystem comprises:
a data forwarding unit for receiving data;
a storage processing unit for storing and processing data;
and the human-computer interaction unit is used for receiving the parameters input by the user.
Further, the sleep mode comprises a beacon sleep mode, and the sleep mode parameter comprises a preset beacon region;
the service management platform subsystem is specifically configured to control the terminal subsystem to enter a dormant state when the mobile terminal enters a preset beacon region, and in the dormant state, the positioning unit does not acquire current position information and speed information of the mobile terminal any more.
Further, the sleep modes include periodic sleep modes including a first sleep mode and a second sleep mode, the sleep mode parameters including a first sleep mode parameter and a second sleep mode parameter;
the terminal subsystem is used for sending the current position information and the speed information of the mobile terminal to the service management platform subsystem when the terminal subsystem is positioned outside a preset beacon area;
the service management platform subsystem judges the traveling mode of the mobile terminal according to the current position information and the speed information, and when the traveling speed of the mobile terminal is lower than a first threshold value, the terminal subsystem is controlled to enter a first sleep mode, parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, wherein the inactivity timer is started after the RRC connection of the mobile terminal is released; or when the traveling speed of the mobile terminal is larger than a second threshold value, controlling the terminal subsystem to enter a second sleep mode, wherein the parameters of the second sleep mode comprise a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
the terminal subsystem is specifically configured to enter a sleep state after the inactivity timer duration T3 expires, and report the current location information of the mobile terminal to the service management platform subsystem when the heartbeat period T4 expires; or reporting the current position information of the mobile terminal to the service management platform subsystem at the paging window time interval T2 within the paging cycle time interval T1.
Further, the communication unit is further configured to initiate a service request to trigger a non-access stratum NAS protocol to be enabled for sending data, and when reporting current location information, encapsulate an IP data packet in an NAS protocol data unit, establish a control plane data transmission flow, and transmit the NAS protocol data unit to the eNB through an attached network after establishing a radio bearer connection, where a frame format of the NAS protocol data unit includes a protocol indication, a bearer identifier, a process transaction identifier, and a user data segment, where the protocol indication is used to indicate that a network needs to trigger control plane optimization to transmit user data, and an NAS message is used between the communication unit and the MME to transmit user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected or not after the uplink data transmission;
the eNB is used for sending an NAS signaling request message to the MME through a dedicated control channel DCCH, wherein the NAS signaling request message carries an NAS signaling identifier and encrypted uplink user data;
the MME is used for acquiring the end position of the data packet through the bearer identifier, and if the release auxiliary information indicates that downlink data is not expected to be received and no uplink data needs to be transmitted, the MME immediately releases radio bearer connection after the end position transmission of the user data packet is finished.
The embodiment of the invention also provides a positioning tracking method, which is applied to a service management platform subsystem and comprises the following steps:
receiving current position information and speed information of the mobile terminal periodically reported by the terminal subsystem through the cellular Internet of things subsystem;
controlling whether the terminal subsystem enters a sleep mode or not according to the current position information, the speed information and preset sleep mode parameters;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
Further, the sleep mode includes a beacon sleep mode, the sleep mode parameter includes a preset beacon region, and the controlling, according to the current location information, the speed information, and the preset sleep mode parameter, whether the terminal subsystem enters the sleep mode includes:
and controlling the terminal subsystem to enter a dormant state when the mobile terminal enters a preset beacon region, wherein in the dormant state, the positioning unit of the terminal subsystem does not acquire the current position information and the speed information of the mobile terminal any more.
Further, still include:
a beacon region for user input is received.
Further, the sleep modes include periodic sleep modes including a first sleep mode and a second sleep mode, the sleep mode parameters including a first sleep mode parameter and a second sleep mode parameter; the controlling whether the terminal subsystem enters the sleep mode according to the current position information, the speed information and the preset sleep mode parameters comprises:
when the terminal subsystem is located outside a preset beacon region, judging the traveling mode of the mobile terminal according to the current position information and the speed information, and when the traveling speed of the mobile terminal is lower than a first threshold value, controlling the terminal subsystem to enter a first sleep mode, wherein parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, wherein the inactivity timer is started after the RRC connection of the terminal is released; or when the traveling speed of the mobile terminal is larger than a second threshold value, controlling the terminal subsystem to enter a second sleep mode, wherein the parameters of the second sleep mode comprise a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
the terminal subsystem enters a dormant state after the time length T3 of the inactivity timer is overtime, and reports the current position information of the mobile terminal to the terminal subsystem after the heartbeat period T4 is overtime; or reporting the current position information of the mobile terminal in the paging window time interval T2 within the paging cycle time interval T1.
The embodiment of the invention also provides a positioning and tracking method, which is applied to a cellular Internet of things subsystem and comprises the following steps:
and sending the current position information and the speed information of the mobile terminal reported by the terminal subsystem to the service management platform subsystem.
Further, still include:
negotiating sleep mode parameters with the terminal subsystem.
Further, still include:
receiving a service request of a terminal subsystem for triggering and starting a non-access stratum (NAS) protocol to send data, establishing a control plane data transmission flow with the terminal subsystem, establishing a radio bearer connection, and receiving an NAS protocol data unit of the terminal subsystem, wherein a frame format of the NAS protocol data unit comprises a protocol indication, a bearer identifier, a process transaction identifier and a user data segment, the protocol indication is used for indicating that a network needs to trigger control plane optimization to transmit user data, and NAS information is used between a communication unit and an MME to transmit the user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected or not after the uplink data transmission;
the control eNB sends an NAS signaling request message to the MME through a dedicated control channel DCCH, wherein the NAS signaling request message carries an NAS signaling identifier and encrypted uplink user data;
and controlling the MME to acquire the end position of the data packet through the bearer identifier, and if the release auxiliary information indicates that downlink data is not expected to be received and no uplink data needs to be transmitted, immediately releasing the radio bearer connection by the MME after the end position transmission of the user data packet is finished.
The embodiment of the invention also provides a positioning and tracking method, which is applied to a terminal subsystem and comprises the following steps:
the method comprises the steps that current position information and speed information of a mobile terminal are periodically obtained, and the current position information and the speed information are sent to a service management platform subsystem through a cellular Internet of things subsystem;
when the current position information and/or the speed information meet the requirement of preset sleep mode parameters, entering a sleep mode under the control of the service management platform subsystem;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
Further, still include:
negotiating sleep mode parameters with an MME of the cellular Internet of things subsystem.
Further, when the mobile terminal is in a dormant state, the signal transceiving and access functions are closed, the power intensity of received signals is monitored, the arrival time difference of a plurality of cells is measured, and the current position information of the mobile terminal is calculated.
Further, when the current location information and/or the speed information meet a requirement of a preset sleep mode parameter, entering a sleep mode under the control of the service management platform subsystem includes:
and when the mobile terminal enters a preset beacon region, entering a dormant state, wherein the positioning unit of the terminal subsystem does not acquire the current position information and the speed information of the mobile terminal any more in the dormant state.
Further, when the current location information and/or the speed information meet a requirement of a preset sleep mode parameter, entering a sleep mode under the control of the service management platform subsystem includes:
entering a first sleep mode when the traveling speed of the mobile terminal is lower than a first threshold, wherein the parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, and the inactivity timer is started after the RRC connection of the terminal is released; or entering a second sleep mode when the traveling speed of the mobile terminal is greater than a second threshold, the parameters of the second sleep mode including a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
in the first sleep mode, after the time length T3 of the inactivity timer is overtime, the mobile terminal enters a sleep state, and reports the current location information of the mobile terminal to the service management platform subsystem in the time length T4 of the heartbeat period; and in the second sleep mode, reporting the current position information of the mobile terminal to the service management platform subsystem at the paging window time interval T2 within the paging cycle time interval T1.
Further, still include:
initiating a service request to the cellular Internet of things subsystem to trigger and enable a non-access stratum (NAS) protocol to be used for sending data, when current position information is reported, encapsulating an IP data packet to an NAS protocol data unit, establishing a control plane data transmission flow, and transmitting the NAS protocol data unit to an eNB through an attached network after a radio bearer connection is established, wherein the frame format of the NAS protocol data unit comprises a protocol indication, a bearer identification, a process transaction identification and a user data segment, the protocol indication is used for indicating that the network needs to trigger control plane optimization to transmit user data, and NAS information is used between a communication unit and the MME to transmit the user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected after the uplink data transmission.
The embodiment of the invention also provides a positioning and tracking device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the localization tracking method as described above.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the localization tracking method as described above.
The embodiment of the invention has the following beneficial effects:
in the scheme, the service management platform subsystem finely adjusts the frequency of position acquisition and communication according to different scene positions of the mobile terminal, and realizes the ultra-long standby capability of the mobile terminal by matching with a dormancy mechanism. The method has the advantages that the accurate and effective transmission of the positioning information is ensured, meanwhile, the frequency of acquiring the redundant positioning information by the mobile terminal is reduced finely, and the power consumption of a terminal subsystem is reduced maximally, so that the mobile terminal does not need to replace a storage battery for years. And the cellular Internet of things is adopted for communication, so that the wide coverage and mass access capability of a cellular cell is effectively utilized.
Drawings
FIG. 1 is a block diagram of a localization tracking system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a terminal subsystem according to an embodiment of the present invention;
fig. 3 is a block diagram of a cellular internet of things subsystem according to an embodiment of the present invention;
FIG. 4 is a block diagram of a service management platform subsystem according to an embodiment of the present invention;
FIG. 5 is a diagram of an NB-IoT radio frame according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a positioning and tracking method according to an embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Embodiments of the present invention provide a positioning and tracking method and system, which can reduce power consumption of a mobile terminal.
An embodiment of the present invention provides a localization tracking system, as shown in fig. 1, including:
the terminal subsystem is arranged on the mobile terminal and used for periodically acquiring the current position information and the speed information of the mobile terminal and sending the current position information and the speed information to the service management platform subsystem through the cellular Internet of things subsystem;
the cellular Internet of things subsystem is used for connecting the terminal subsystem and the service management platform subsystem;
the service management platform subsystem is used for controlling whether the terminal subsystem enters a sleep mode or not according to the current position information, the speed information and a preset sleep mode parameter;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
In the embodiment, the service management platform subsystem finely adjusts the frequency of position acquisition and communication according to the difference of the scene positions of the mobile terminal, and realizes the ultra-long standby capability of the mobile terminal by matching with a sleep mechanism. The method has the advantages that the accurate and effective transmission of the positioning information is ensured, meanwhile, the frequency of acquiring the redundant positioning information by the mobile terminal is reduced finely, and the power consumption of a terminal subsystem is reduced maximally, so that the mobile terminal does not need to replace a storage battery for years. And the cellular Internet of things is adopted for communication, so that the wide coverage and mass access capability of a cellular cell is effectively utilized.
The service management platform subsystem can be connected with the mobile phone APP, and a user can set parameters to the service management platform subsystem through the mobile phone APP.
Further, as shown in fig. 2, the terminal subsystem includes:
the positioning unit is used for periodically acquiring the current position information and the speed information of the mobile terminal;
the communication unit is used for establishing communication with the cellular Internet of things subsystem and sending the current position information and the speed information to the service management platform subsystem through the cellular Internet of things subsystem;
the storage battery unit is used for supplying power to each unit;
and the micro-control processing unit is used for controlling the working state of each unit.
Further, as shown in fig. 2, the terminal subsystem further includes: the device comprises a sensing unit, an alarm unit, a storage unit, a third party interface unit and a switch unit.
Further, as shown in fig. 3, the cellular internet of things subsystem includes:
a base station eNB, a mobility management entity MME, a service gateway S-GW and a PDN gateway P-GW.
Further, the communication unit is further configured to negotiate sleep mode parameters with the MME.
Further, the micro-control processing unit is specifically configured to control the communication unit to close signal transceiving and access functions, monitor received signal power strength, measure arrival time differences of multiple cells, and calculate current location information of the mobile terminal when the communication unit is in a dormant state.
Furthermore, the storage battery unit adopts a power supply mode of a double-battery power supply to independently supply power to the positioning unit.
Further, as shown in fig. 4, the service management platform subsystem includes:
a data forwarding unit for receiving data;
a storage processing unit for storing and processing data;
and the human-computer interaction unit is used for receiving the parameters input by the user.
Further, the sleep mode comprises a beacon sleep mode, and the sleep mode parameter comprises a preset beacon region;
the service management platform subsystem is specifically configured to control the terminal subsystem to enter a dormant state when the mobile terminal enters a preset beacon region, and in the dormant state, the positioning unit does not acquire current position information and speed information of the mobile terminal any more.
Further, the sleep modes include periodic sleep modes including a first sleep mode and a second sleep mode, the sleep mode parameters including a first sleep mode parameter and a second sleep mode parameter;
the terminal subsystem is used for sending the current position information and the speed information of the mobile terminal to the service management platform subsystem when the terminal subsystem is positioned outside a preset beacon area;
the service management platform subsystem judges the traveling mode of the mobile terminal according to the current position information and the speed information, and when the traveling speed of the mobile terminal is lower than a first threshold value, the terminal subsystem is controlled to enter a first sleep mode, parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, wherein the inactivity timer is started after the RRC connection of the mobile terminal is released; or when the traveling speed of the mobile terminal is larger than a second threshold value, controlling the terminal subsystem to enter a second sleep mode, wherein the parameters of the second sleep mode comprise a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
the terminal subsystem is specifically configured to enter a sleep state after the inactivity timer duration T3 expires, and report the current location information of the mobile terminal to the service management platform subsystem when the heartbeat period T4 expires; or reporting the current position information of the mobile terminal to the service management platform subsystem at the paging window time interval T2 within the paging cycle time interval T1.
Further, the communication unit is further configured to initiate a service request to trigger a non-access stratum NAS protocol to be enabled for sending data, and when reporting current location information, encapsulate an IP data packet in an NAS protocol data unit, establish a control plane data transmission flow, and transmit the NAS protocol data unit to the eNB through an attached network after establishing a radio bearer connection, where a frame format of the NAS protocol data unit includes a protocol indication, a bearer identifier, a process transaction identifier, and a user data segment, where the protocol indication is used to indicate that a network needs to trigger control plane optimization to transmit user data, and an NAS message is used between the communication unit and the MME to transmit user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected or not after the uplink data transmission;
the eNB is used for sending an NAS signaling request message to the MME through a dedicated control channel DCCH, wherein the NAS signaling request message carries an NAS signaling identifier and encrypted uplink user data;
the MME is used for acquiring the end position of the data packet through the bearer identifier, and if the release auxiliary information indicates that downlink data is not expected to be received and no uplink data needs to be transmitted, the MME immediately releases radio bearer connection after the end position transmission of the user data packet is finished.
The embodiment of the invention also provides a positioning tracking method, which is applied to a service management platform subsystem and comprises the following steps:
receiving current position information and speed information of the mobile terminal periodically reported by the terminal subsystem through the cellular Internet of things subsystem;
controlling whether the terminal subsystem enters a sleep mode or not according to the current position information, the speed information and preset sleep mode parameters;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
In the embodiment, the service management platform subsystem finely adjusts the frequency of position acquisition and communication according to the difference of the scene positions of the mobile terminal, and realizes the ultra-long standby capability of the mobile terminal by matching with a sleep mechanism. The method has the advantages that the accurate and effective transmission of the positioning information is ensured, meanwhile, the frequency of acquiring the redundant positioning information by the mobile terminal is reduced finely, and the power consumption of a terminal subsystem is reduced maximally, so that the mobile terminal does not need to replace a storage battery for years. And the cellular Internet of things is adopted for communication, so that the wide coverage and mass access capability of a cellular cell is effectively utilized.
Further, the sleep mode includes a beacon sleep mode, the sleep mode parameter includes a preset beacon region, and the controlling, according to the current location information, the speed information, and the preset sleep mode parameter, whether the terminal subsystem enters the sleep mode includes:
and controlling the terminal subsystem to enter a dormant state when the mobile terminal enters a preset beacon region, wherein in the dormant state, the positioning unit of the terminal subsystem does not acquire the current position information and the speed information of the mobile terminal any more.
Further, still include:
a beacon region for user input is received.
Further, the sleep modes include periodic sleep modes including a first sleep mode and a second sleep mode, the sleep mode parameters including a first sleep mode parameter and a second sleep mode parameter; the controlling whether the terminal subsystem enters the sleep mode according to the current position information, the speed information and the preset sleep mode parameters comprises:
when the terminal subsystem is located outside a preset beacon region, judging the traveling mode of the mobile terminal according to the current position information and the speed information, and when the traveling speed of the mobile terminal is lower than a first threshold value, controlling the terminal subsystem to enter a first sleep mode, wherein parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, wherein the inactivity timer is started after the RRC connection of the terminal is released; or when the traveling speed of the mobile terminal is larger than a second threshold value, controlling the terminal subsystem to enter a second sleep mode, wherein the parameters of the second sleep mode comprise a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
the terminal subsystem enters a dormant state after the time length T3 of the inactivity timer is overtime, and reports the current position information of the mobile terminal to the terminal subsystem after the heartbeat period T4 is overtime; or reporting the current position information of the mobile terminal in the paging window time interval T2 within the paging cycle time interval T1.
The embodiment of the invention also provides a positioning and tracking method, which is applied to a cellular Internet of things subsystem and comprises the following steps:
and sending the current position information and the speed information of the mobile terminal reported by the terminal subsystem to the service management platform subsystem.
Further, still include:
negotiating sleep mode parameters with the terminal subsystem.
Further, still include:
receiving a service request of a terminal subsystem for triggering and starting a non-access stratum (NAS) protocol to send data, establishing a control plane data transmission flow with the terminal subsystem, establishing a radio bearer connection, and receiving an NAS protocol data unit of the terminal subsystem, wherein a frame format of the NAS protocol data unit comprises a protocol indication, a bearer identifier, a process transaction identifier and a user data segment, the protocol indication is used for indicating that a network needs to trigger control plane optimization to transmit user data, and NAS information is used between a communication unit and an MME to transmit the user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected or not after the uplink data transmission;
the control eNB sends an NAS signaling request message to the MME through a dedicated control channel DCCH, wherein the NAS signaling request message carries an NAS signaling identifier and encrypted uplink user data;
and controlling the MME to acquire the end position of the data packet through the bearer identifier, and if the release auxiliary information indicates that downlink data is not expected to be received and no uplink data needs to be transmitted, immediately releasing the radio bearer connection by the MME after the end position transmission of the user data packet is finished.
The embodiment of the invention also provides a positioning and tracking method, which is applied to a terminal subsystem and comprises the following steps:
the method comprises the steps that current position information and speed information of a mobile terminal are periodically obtained, and the current position information and the speed information are sent to a service management platform subsystem through a cellular Internet of things subsystem;
when the current position information and/or the speed information meet the requirement of preset sleep mode parameters, entering a sleep mode under the control of the service management platform subsystem;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
In the embodiment, the service management platform subsystem finely adjusts the frequency of position acquisition and communication according to the difference of the scene positions of the mobile terminal, and realizes the ultra-long standby capability of the mobile terminal by matching with a sleep mechanism. The method has the advantages that the accurate and effective transmission of the positioning information is ensured, meanwhile, the frequency of acquiring the redundant positioning information by the mobile terminal is reduced finely, and the power consumption of a terminal subsystem is reduced maximally, so that the mobile terminal does not need to replace a storage battery for years. And the cellular Internet of things is adopted for communication, so that the wide coverage and mass access capability of a cellular cell is effectively utilized.
Further, still include:
negotiating sleep mode parameters with an MME of the cellular Internet of things subsystem.
Further, when the mobile terminal is in a dormant state, the signal transceiving and access functions are closed, the power intensity of received signals is monitored, the arrival time difference of a plurality of cells is measured, and the current position information of the mobile terminal is calculated.
Further, when the current location information and/or the speed information meet a requirement of a preset sleep mode parameter, entering a sleep mode under the control of the service management platform subsystem includes:
and when the mobile terminal enters a preset beacon region, entering a dormant state, wherein the positioning unit of the terminal subsystem does not acquire the current position information and the speed information of the mobile terminal any more in the dormant state.
Further, when the current location information and/or the speed information meet a requirement of a preset sleep mode parameter, entering a sleep mode under the control of the service management platform subsystem includes:
entering a first sleep mode when the traveling speed of the mobile terminal is lower than a first threshold, wherein the parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, and the inactivity timer is started after the RRC connection of the terminal is released; or entering a second sleep mode when the traveling speed of the mobile terminal is greater than a second threshold, the parameters of the second sleep mode including a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
in the first sleep mode, after the time length T3 of the inactivity timer is overtime, the mobile terminal enters a sleep state, and reports the current location information of the mobile terminal to the service management platform subsystem in the time length T4 of the heartbeat period; and in the second sleep mode, reporting the current position information of the mobile terminal to the service management platform subsystem at the paging window time interval T2 within the paging cycle time interval T1.
Further, still include:
initiating a service request to the cellular Internet of things subsystem to trigger and enable a non-access stratum (NAS) protocol to be used for sending data, when current position information is reported, encapsulating an IP data packet to an NAS protocol data unit, establishing a control plane data transmission flow, and transmitting the NAS protocol data unit to an eNB through an attached network after a radio bearer connection is established, wherein the frame format of the NAS protocol data unit comprises a protocol indication, a bearer identification, a process transaction identification and a user data segment, the protocol indication is used for indicating that the network needs to trigger control plane optimization to transmit user data, and NAS information is used between a communication unit and the MME to transmit the user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected after the uplink data transmission.
The technical scheme of the invention is further described by combining the drawings and specific embodiments:
the embodiment fully considers the requirement of the positioning tracking application on the communication frequency and the effective wireless connection bearing duration of the mobile terminal, and aims at the defects of the existing positioning tracking method in the aspect of low power consumption, a low-power-consumption positioning tracking scheme is provided.
The low-power-consumption positioning and tracking system is composed of a terminal subsystem, a cellular Internet of things subsystem and a service management platform subsystem. The terminal subsystem and the service management platform subsystem are connected through the cellular Internet of things subsystem. The main application scenes of the embodiment are scenes that materials are prevented from being lost, people are difficult to frequently replace batteries for searching and the like, accurate positioning information does not need to be acquired in real time, and the positioning information with low frequency is enough to master the approximate position of a positioning object.
The system comprises a terminal subsystem, a positioning unit of the terminal subsystem, a speed information acquisition unit of the mobile terminal and a control unit of the mobile terminal, wherein the terminal subsystem is installed on the mobile terminal, the positioning unit of the terminal subsystem is used for periodically acquiring the current position information of the mobile terminal, and the output data of the positioning unit comprises the current position information and the speed information of the mobile terminal;
and the communication unit of the terminal subsystem establishes radio resource bearing with the cell base station eNB of the cellular Internet of things, and completes mobile terminal attachment and network registration after network access. The communication unit negotiates with a core network MME through an attachment request message carrying sleep mode parameters (the sleep mode parameters comprise inactivity timer time and heartbeat cycle time interval, and the discontinuous reception mode parameters comprise an extended paging cycle and a pageable window time interval), and if the MME does not have locally configured time length with higher priority, the communication unit sets the timing parameters to be current negotiation values. In a dormant state (during a non-paging window or after an inactivity timer expires), a communication unit of the mobile terminal closes the signal transceiving and access functions, and a micro-control processing unit of the mobile terminal assigns values to indicate each working unit to enter the dormant state, so that the power consumption of an antenna, radio frequency, signaling processing and the like is reduced, but the mobile terminal is in a registered state in a network. Meanwhile, the communication unit monitors the power intensity of the received signal, measures the time difference of arrival (OTDOA) of a plurality of cells and calculates the current position information of the mobile terminal.
And the storage battery unit of the terminal subsystem adopts a power supply mode of a double-battery power supply to independently supply power for the positioning unit. Even if the third-party interface has high use frequency and no power, the positioning unit can work, so that the terminal subsystem at least has a positioning function.
The micro-control processing unit of the terminal subsystem controls all units of the terminal subsystem to work cooperatively, so that the terminal subsystem at least comprises a plurality of working modes:
1) beacon sleep mode
People, pets, objects and the like needing anti-lost positioning are in certain specific positions most of the day, beacons are placed on the frequent positions, when a positioning object enters the range of the beacons, the positioning object enters an ultra-low power consumption sleep mode, positioning information does not need to be acquired in the mode, and power consumption is reduced to the maximum extent. For example, pets are most of the time at home or at a particular event.
TABLE 1 user sets up frequent beacon area for pet according to time period and calendar on mobile phone APP
Time period Time of day Monday Zhou Di Wednesday Week four ZhouWu for treating viral hepatitis Saturday wine Sunday day
Early morning (morning) 07:00 Park Home-use Park Home-use Park Park Home-use
In the morning 09:00 Home-use Home-use Home-use Home-use Home-use Cell Park
Noon is a Chinese traditional musical instrument 12:00 Home-use Home-use Home-use Home-use Home-use Cell Home-use
In the afternoon 14:00 Home-use Home-use Home-use Home-use Home-use Park Home-use
In the evening 18:00 Home-use Home-use Home-use Home-use Home-use Cell Park
At night 20:00 Cell Cell Cell Cell Cell Cell Home-use
Night time 00:00 Home-use Home-use Home-use Home-use Home-use Home-use Home-use
2) Periodic sleep mode
When the fixed-displacement mobile terminal leaves the safe beacon area, the terminal subsystem uploads the current position and speed information of the mobile terminal to the service management platform subsystem through the communication unit, and the service management platform subsystem judges the advancing mode according to the current position and speed of the mobile terminal and collects positioning information timely with the lowest power consumption overhead.
When it is monitored that a positioning object runs at a walking speed, the terminal subsystem working mode is started to be a Power Saving Mode (PSM), namely the first sleep mode, and parameters of the PSM long-period sleep mode include an inactivity timer duration T3 and a heartbeat period T4, wherein the inactivity timer is started after RRC connection of the terminal subsystem is released, the terminal subsystem keeps deep sleep after timeout to reduce power consumption, and the terminal subsystem is awakened every time the terminal subsystem is timed out in the heartbeat period T2 to acquire and report current position coordinate information.
When the positioning object is detected to run at the vehicle-mounted speed, the terminal subsystem working mode is switched to an extended Discontinuous Reception (eDRX) mode, that is, the second sleep mode is used for fine positioning, the heartbeat cycle is shortened to 2 minutes, and the timely position information of the positioning object moving at a high speed in a non-beacon area is acquired at a high frequency. The discontinuous reception mode parameters include a paging cycle time interval T1 and a paging window time interval T2, where T2< T1. And establishing a radio bearer with the eNB of the cellular Internet of things at a certain paging interval in the paging window, wherein the communication unit of the terminal subsystem keeps an activated state, and the time terminal subsystem outside the paging window keeps deep sleep to reduce power consumption.
In the prior art, since the network base station unit eNB cannot predict whether the terminal subsystem has data to send, in order to prevent a large amount of redundant signaling loads (signaling storm) caused by repeatedly removing the wireless link, the wireless communication link is always released after the mobile terminal completes service transmission. The mobile terminal is still in the radio link connection state for this period of time, resulting in the mobile terminal having to consume a certain amount of power for this purpose. Therefore, for positioning the mobile terminal which is very sensitive to power consumption, it is necessary to optimize the process for further prolonging the power usage time. The invention provides an optimization scheme aiming at the problem that the RRC wireless link release timer of the mobile terminal is too long, and shortens the wireless link connection time.
First, a communication unit of a terminal subsystem initiates a service request to trigger activation of a non-access stratum (NAS) protocol for data transmission. The frame format defined by the NAS protocol includes a protocol indication, a bearer Identification (ID), a process transaction identification, and a user data segment. The protocol indication is used for indicating that the network needs to trigger control plane optimization to transmit user data, and NAS information is used between the UE and the MME to transmit the user data; the bearer ID is used to indicate the end location of the user data; the procedure transaction ID is used to carry release assistance information for indicating whether or not downstream data transmission (e.g., acknowledgement and response of upstream data) is expected after the upstream data transmission.
And then, when the fixed-position mobile terminal reports the positioning information, the communication unit encapsulates the IP data packet into the NAS protocol data unit and establishes a control plane data transmission flow.
Then, after establishing radio bearer connection, the communication unit transmits the NAS protocol data unit to a network base station unit eNB through an attached network, and the eNB sends an NAS signaling request message to a cellular internet of things unit MME through a dedicated control channel DCCH, where an uplink carries an NAS signaling identifier and encrypted uplink user data.
Then, the MME acquires the end position of the data packet through the bearer identifier. If the release auxiliary information indicates that the downlink data is not expected to be received and no uplink data needs to be transmitted, the MME immediately releases the radio bearer connection after the transmission of the end position of the user data packet is finished. The method avoids the radio bearer connection time of the base station eNB on the low-power-consumption mobile terminal by adopting the general timing mode in the prior art. The mobile terminal immediately exits the connection state and starts the PSM timer, and immediately enters the sleep state after the PSM timer is up, so that the power consumption of the service connection state is reduced. Fig. 5 is a schematic diagram of a non-access stratum NAS protocol frame format definition.
As shown in fig. 6, a positioning and tracking method according to an embodiment includes the following steps:
step 1: the user sets An associated positioning and tracking device (namely a mobile terminal comprising a terminal subsystem) at the man-machine interaction unit, and sets common scene position coordinates { A1, A2, …, An } according to the time periods of morning, afternoon, evening and the like and the calendar condition, wherein An equals (Xn, Yn). These frequented security zones are set as beacon zones, for example: park, home, cell, etc. Also, the user may set an insecure area as a beacon area.
And step 2, the mobile terminal is electrified and initialized, the base station signal of the cell is searched, and PSM mode timer parameters (the time length of an inactive timer T3 and a heartbeat cycle T4) and eDRX mode timer parameters (a paging cycle time interval T1 and a paging window time interval T2) are carried in the attachment message. And a received signal power indication function, so as to realize that the current received power of the equipment is provided by a signal strength indication reference value carried by the received signal, and the sampling frequency of the signal strength indication reference value is 1 s.
And step 3: the terminal subsystem of the mobile terminal uploads the current position information and the speed information of the mobile terminal to the service management platform subsystem through the communication unit, and the service management platform subsystem can judge the advancing mode and start the corresponding working mode according to the current position and the speed and acquire the current position coordinate information of the positioning and tracking device. The walking speed of a person is generally 4-10 km/h, and it is preferable that the person is judged to be walking at a speed of less than 10 km/h and the person is judged to be riding at a speed of 10 km/h or more.
Starting a static mode:
the difference L Xn ═ Xo-Xn |, L Yn | -Yo-Yn |, between the current position coordinates and the beacon coordinates, determines whether L Xn or L Yn is less than the threshold L, and continues for a period of time T0.
When L xn or L yn is less than the threshold L, it indicates that the mobile terminal enters the beacon region.
Starting the PSM:
when the acquired positioning coordinates are greater than the threshold L from the beacon coordinates, indicating that the positioning object is leaving the beacon region, the terminal subsystem activates PSM mode and the mobile terminal periodically exits from sleep but is registered in the network, preferably, a heartbeat period T4 of 10 minutes, i.e., 1 acquisition of positioning information in 10 minutes, is sufficient to grasp the approximate position of the positioning object.
When the heartbeat period T4 is overtime, the mobile terminal is awakened, the acquired current position information is reported to the cellular Internet of things eNB after RRC radio bearer is established with the eNB, and the timer enters the dormant state again after the RRC connection is released after data transmission is finished.
And the terminal subsystem continues to acquire the current position information of the mobile terminal.
Starting an eDRX mode:
when the positioning object is detected to run at the vehicle-mounted speed, the working mode of the terminal subsystem is switched to the eDRX mode, and meanwhile, the heartbeat cycle is shortened to 2 minutes.
The service platform subsystem initiates a position acquisition request at intervals of a paging cycle T1, an S-GW of the cellular Internet of things subsystem receives downlink data in a non-paging window and caches a data packet, when the mobile terminal enters a paging time window T2, an MME of the cellular Internet of things subsystem pages the mobile terminal and triggers the establishment of an air interface connection, and the request data packet is forwarded to the mobile terminal.
And the mobile terminal responds to the request, reports the current position information to an eNB of the cellular Internet of things subsystem, and transmits the current position information to the service management platform subsystem after forwarding by each unit of the core network. And the storage processing unit judges and analyzes the position coordinates, and if the mobile terminal is in a non-beacon region and the acquired position coordinate value changes, the storage processing unit initiates a position acquisition request again after the paging time interval T1 is overtime to continuously acquire the position coordinates of the mobile terminal.
The method can realize the differentiated adjustment of the communication frequency in different positioning scenes, is innovatively designed, can finely adjust the positioning data acquisition frequency, can reduce the redundant communication process of the mobile terminal, and is matched with a dormancy mechanism to realize low-power-consumption positioning. The invention creatively applies the special control channel DCCH to report and position the network data of the mobile terminal, designs an NAS protocol frame format, and the network management unit MME can accurately find the terminal position of the effective data bit of the reported data packet of the mobile terminal according to the frame identification, thereby efficiently shortening the invalid radio bearer connection time caused by the prior base station technology. The sleep mode of the invention comprises a design method of a beacon sleep mode, a long-period sleep mode and a discontinuous reception sleep mode, wherein the discontinuous reception sleep mode can distinguish positioning scenes of step-by-step walking and vehicle-mounted advancing. The invention calculates the current position information of the mobile terminal by measuring the signal arrival time difference of the cells of the multiple base stations, accurately and limitedly transmits the positioning information according to the different positions and the different moving speeds of the mobile terminal and realizes the ultra-long standby of the mobile terminal.
The embodiment of the invention also provides a positioning and tracking device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the localization tracking method as described above.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the localization tracking method as described above.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (25)

1. A position tracking system, comprising:
the terminal subsystem is arranged on the mobile terminal and used for periodically acquiring the current position information and the speed information of the mobile terminal and sending the current position information and the speed information to the service management platform subsystem through the cellular Internet of things subsystem;
the cellular Internet of things subsystem is used for connecting the terminal subsystem and the service management platform subsystem;
the service management platform subsystem is used for controlling whether the terminal subsystem enters a sleep mode or not according to the current position information, the speed information and a preset sleep mode parameter;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
2. The localization tracking system of claim 1, wherein the terminal subsystem comprises:
the positioning unit is used for periodically acquiring the current position information and the speed information of the mobile terminal;
the communication unit is used for establishing communication with the cellular Internet of things subsystem and sending the current position information and the speed information to the service management platform subsystem through the cellular Internet of things subsystem;
the storage battery unit is used for supplying power to each unit;
and the micro-control processing unit is used for controlling the working state of each unit.
3. The localization tracking system of claim 2, wherein the cellular internet of things subsystem comprises:
a base station eNB, a mobility management entity MME, a service gateway S-GW and a PDN gateway P-GW.
4. The location tracking system of claim 3, wherein the communication unit is further configured to negotiate sleep mode parameters with the MME.
5. The position tracking system of claim 2,
the micro-control processing unit is specifically configured to control the communication unit to close signal transceiving and access functions, monitor received signal power strength, measure arrival time differences of multiple cells, and calculate current location information of the mobile terminal when the communication unit is in a dormant state.
6. The localization tracking system according to claim 2, wherein the battery unit is powered by a dual battery power source to provide power to the localization unit independently.
7. The localization tracking system of claim 1, wherein the service management platform subsystem comprises:
a data forwarding unit for receiving data;
a storage processing unit for storing and processing data;
and the human-computer interaction unit is used for receiving the parameters input by the user.
8. The localization tracking system according to claim 2, wherein the sleep mode comprises a beacon sleep mode, the sleep mode parameters comprising a preset beacon region;
the service management platform subsystem is specifically configured to control the terminal subsystem to enter a dormant state when the mobile terminal enters a preset beacon region, and in the dormant state, the positioning unit does not acquire current position information and speed information of the mobile terminal any more.
9. The localization tracking system of claim 1, wherein the sleep modes include periodic sleep modes including a first sleep mode and a second sleep mode, the sleep mode parameters including a first sleep mode parameter and a second sleep mode parameter;
the terminal subsystem is used for sending the current position information and the speed information of the mobile terminal to the service management platform subsystem when the terminal subsystem is positioned outside a preset beacon area;
the service management platform subsystem judges the traveling mode of the mobile terminal according to the current position information and the speed information, and when the traveling speed of the mobile terminal is lower than a first threshold value, the terminal subsystem is controlled to enter a first sleep mode, parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, wherein the inactivity timer is started after the RRC connection of the mobile terminal is released; or when the traveling speed of the mobile terminal is larger than a second threshold value, controlling the terminal subsystem to enter a second sleep mode, wherein the parameters of the second sleep mode comprise a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
the terminal subsystem is specifically configured to enter a sleep state after the inactivity timer duration T3 expires, and report the current location information of the mobile terminal to the service management platform subsystem when the heartbeat period T4 expires; or reporting the current position information of the mobile terminal to the service management platform subsystem at the paging window time interval T2 within the paging cycle time interval T1.
10. The position tracking system of claim 3,
the communication unit is further configured to initiate a service request to trigger a non-access stratum NAS protocol to be enabled for sending data, and when reporting current location information, encapsulate an IP data packet in an NAS protocol data unit, establish a control plane data transmission flow, and transmit the NAS protocol data unit to an eNB through an attached network after establishing a radio bearer connection, where a frame format of the NAS protocol data unit includes a protocol indication, a bearer identifier, a process transaction identifier, and a user data segment, where the protocol indication is used to indicate that a network needs to trigger control plane optimization to transmit user data, and the communication unit and the MME use an NAS message to transmit the user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected or not after the uplink data transmission;
the eNB is used for sending an NAS signaling request message to the MME through a dedicated control channel DCCH, wherein the NAS signaling request message carries an NAS signaling identifier and encrypted uplink user data;
the MME is used for acquiring the end position of the data packet through the bearer identifier, and if the release auxiliary information indicates that downlink data is not expected to be received and no uplink data needs to be transmitted, the MME immediately releases radio bearer connection after the end position transmission of the user data packet is finished.
11. A positioning tracking method is applied to a service management platform subsystem, and comprises the following steps:
receiving current position information and speed information of the mobile terminal periodically reported by the terminal subsystem through the cellular Internet of things subsystem;
controlling whether the terminal subsystem enters a sleep mode or not according to the current position information, the speed information and preset sleep mode parameters;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
12. The method of claim 11, wherein the sleep mode comprises a beacon sleep mode, wherein the sleep mode parameters comprise a preset beacon zone, and wherein the controlling whether the terminal subsystem enters the sleep mode according to the current location information, the speed information, and the preset sleep mode parameters comprises:
and controlling the terminal subsystem to enter a dormant state when the mobile terminal enters a preset beacon region, wherein in the dormant state, the positioning unit of the terminal subsystem does not acquire the current position information and the speed information of the mobile terminal any more.
13. The position tracking method of claim 11, further comprising:
a beacon region for user input is received.
14. The method of claim 11, wherein the sleep modes comprise periodic sleep modes, the periodic sleep modes comprising a first sleep mode and a second sleep mode, the sleep mode parameters comprising a first sleep mode parameter and a second sleep mode parameter; the controlling whether the terminal subsystem enters the sleep mode according to the current position information, the speed information and the preset sleep mode parameters comprises:
when the terminal subsystem is located outside a preset beacon region, judging the traveling mode of the mobile terminal according to the current position information and the speed information, and when the traveling speed of the mobile terminal is lower than a first threshold value, controlling the terminal subsystem to enter a first sleep mode, wherein parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, wherein the inactivity timer is started after the RRC connection of the terminal is released; or when the traveling speed of the mobile terminal is larger than a second threshold value, controlling the terminal subsystem to enter a second sleep mode, wherein the parameters of the second sleep mode comprise a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
the terminal subsystem enters a dormant state after the time length T3 of the inactivity timer is overtime, and reports the current position information of the mobile terminal to the terminal subsystem after the heartbeat period T4 is overtime; or reporting the current position information of the mobile terminal in the paging window time interval T2 within the paging cycle time interval T1.
15. A positioning tracking method is applied to a cellular Internet of things subsystem, and comprises the following steps:
and sending the current position information and the speed information of the mobile terminal reported by the terminal subsystem to the service management platform subsystem.
16. The position tracking method of claim 15, further comprising:
negotiating sleep mode parameters with the terminal subsystem.
17. The position tracking method of claim 15, further comprising:
receiving a service request of a terminal subsystem for triggering and starting a non-access stratum (NAS) protocol to send data, establishing a control plane data transmission flow with the terminal subsystem, establishing a radio bearer connection, and receiving an NAS protocol data unit of the terminal subsystem, wherein a frame format of the NAS protocol data unit comprises a protocol indication, a bearer identifier, a process transaction identifier and a user data segment, the protocol indication is used for indicating that a network needs to trigger control plane optimization to transmit user data, and NAS information is used between a communication unit and an MME of the terminal subsystem to transmit the user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected or not after the uplink data transmission;
the control eNB sends an NAS signaling request message to the MME through a dedicated control channel DCCH, wherein the NAS signaling request message carries an NAS signaling identifier and encrypted uplink user data;
and controlling the MME to acquire the end position of the data packet through the bearer identifier, and if the release auxiliary information indicates that downlink data is not expected to be received and no uplink data needs to be transmitted, immediately releasing the radio bearer connection by the MME after the end position transmission of the user data packet is finished.
18. A positioning tracking method is applied to a terminal subsystem, and comprises the following steps:
the method comprises the steps that current position information and speed information of a mobile terminal are periodically obtained, and the current position information and the speed information are sent to a service management platform subsystem through a cellular Internet of things subsystem;
when the current position information and/or the speed information meet the requirement of preset sleep mode parameters, entering a sleep mode under the control of the service management platform subsystem;
and in the sleep mode, the terminal subsystem acquires the current position information and the frequency reduction of the speed information of the mobile terminal.
19. The position tracking method of claim 18, further comprising:
negotiating sleep mode parameters with an MME of the cellular Internet of things subsystem.
20. The position tracking method according to claim 18,
and when the mobile terminal is in a dormant state, the signal transceiving and access functions are closed, the power intensity of received signals is monitored, the arrival time difference of a plurality of cells is measured, and the current position information of the mobile terminal is calculated.
21. The method according to claim 18, wherein entering into sleep mode under the control of the service management platform subsystem when the current location information and/or speed information meets the requirement of preset sleep mode parameters comprises:
and when the mobile terminal enters a preset beacon region, entering a dormant state, wherein the positioning unit of the terminal subsystem does not acquire the current position information and the speed information of the mobile terminal any more in the dormant state.
22. The method according to claim 18, wherein entering into sleep mode under the control of the service management platform subsystem when the current location information and/or speed information meets the requirement of preset sleep mode parameters comprises:
entering a first sleep mode when the traveling speed of the mobile terminal is lower than a first threshold, wherein the parameters of the first sleep mode comprise an inactivity timer duration T3 and a heartbeat period T4, and the inactivity timer is started after the RRC connection of the terminal is released; or entering a second sleep mode when the traveling speed of the mobile terminal is greater than a second threshold, the parameters of the second sleep mode including a paging cycle time interval T1 and a paging window time interval T2, wherein T2< T1;
in the first sleep mode, after the time length T3 of the inactivity timer is overtime, the mobile terminal enters a sleep state, and reports the current location information of the mobile terminal to the service management platform subsystem in the time length T4 of the heartbeat period; and in the second sleep mode, reporting the current position information of the mobile terminal to the service management platform subsystem at the paging window time interval T2 within the paging cycle time interval T1.
23. The position tracking method of claim 18, further comprising:
initiating a service request to the cellular internet of things subsystem to trigger a non-access stratum (NAS) protocol to be started for sending data, when current position information is reported, encapsulating an IP data packet to an NAS protocol data unit, establishing a control plane data transmission flow, and transmitting the NAS protocol data unit to an eNB through an attached network after a radio bearer connection is established, wherein the frame format of the NAS protocol data unit comprises a protocol indication, a bearer identification, a process transaction identification and a user data segment, the protocol indication is used for indicating that the network needs to trigger control plane optimization to transmit user data, and NAS information is used between a communication unit of the terminal subsystem and an MME of the cellular internet of things subsystem to transmit the user data; the bearer identification is used for indicating the end position of user data; the process transaction identifier is used for carrying release auxiliary information and indicating whether downlink data transmission is expected after the uplink data transmission.
24. A position tracking apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements a localization tracking method according to any one of claims 11-14 or implements a localization tracking method according to any one of claims 15-17 or implements a localization tracking method according to any one of claims 18-23.
25. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the localization tracking method according to any of claims 11-14 or the localization tracking method according to any of claims 15-17 or the steps in the localization tracking method according to any of claims 18-23.
CN201910000973.8A 2019-01-02 2019-01-02 Positioning tracking method and system Pending CN111405479A (en)

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Application Number Priority Date Filing Date Title
CN201910000973.8A CN111405479A (en) 2019-01-02 2019-01-02 Positioning tracking method and system
PCT/CN2020/070002 WO2020140922A1 (en) 2019-01-02 2020-01-02 Location tracking method for mobile communication and low-power dissipation location tracking system

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