WO2012075802A1 - 辅助全球卫星定位系统中的节电方法及系统 - Google Patents

辅助全球卫星定位系统中的节电方法及系统 Download PDF

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Publication number
WO2012075802A1
WO2012075802A1 PCT/CN2011/076085 CN2011076085W WO2012075802A1 WO 2012075802 A1 WO2012075802 A1 WO 2012075802A1 CN 2011076085 W CN2011076085 W CN 2011076085W WO 2012075802 A1 WO2012075802 A1 WO 2012075802A1
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WO
WIPO (PCT)
Prior art keywords
working
positioning
target terminal
module
working module
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Application number
PCT/CN2011/076085
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English (en)
French (fr)
Inventor
祝建建
谢峰
陈琳
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP11847071.5A priority Critical patent/EP2651151A4/en
Publication of WO2012075802A1 publication Critical patent/WO2012075802A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0251Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/34Power consumption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a power saving method and an auxiliary global satellite positioning system in an assisted global satellite positioning system. Background technique
  • the auxiliary global satellite positioning system for example, A-GPS (Assisted-Global Positioning System), is a performance indicator of the positioning service function and system equipment complexity.
  • A-GPS Assisted-Global Positioning System
  • the assisted global satellite positioning system usually consists of a positioning target terminal, a satellite positioning system, a positioning service network side, and a positioning information receiving end.
  • the positioning target terminal receives the original signal of the positioning satellite at a fixed cycle to calculate the pseudorange of the mobile phone to the satellite, and transmits the calculation result to the positioning service network side.
  • the positioning service network side performs correction calculation on the location of the positioning target terminal based on the information transmitted by the positioning target terminal and the auxiliary information provided by the positioning service network side auxiliary positioning device, and then transmits the calculation result as the final location information of the positioning target terminal to the positioning information. Receiving end.
  • the positioning target terminal needs to open the satellite positioning system working module to receive The signal of the satellite positioning system, and also open the wireless network communication working module and interact with the positioning service network side multiple times.
  • the positioning target terminal performs a long-term periodic positioning operation, it is necessary to open the satellite positioning system working module for a long time to receive the satellite signal, and turn on the wireless network communication working module for a long time to complete the interaction with the positioning service network side, if the above two
  • Each module is in a working state for a long time, and it consumes a large amount of power for the target terminal.
  • the main object of the present invention is to provide a power saving method and system for assisting a global satellite positioning system, which is intended to save power for locating a target terminal when assisting global satellite positioning operations.
  • a method of assisting a power saving in a global satellite positioning system includes the following steps:
  • the positioning service network side calculates the working cycle time length of the satellite positioning system working module
  • the positioning target terminal adjusts the working parameters of the working module of the satellite positioning system according to the length of the working cycle, and controls the working module of the satellite positioning system and/or the working module of the wireless network to enter the power saving working state.
  • the process of calculating the working period time length by the positioning service network side includes: calculating, according to the received original location information, the corrected final location information of the positioning target terminal, and thereby creating and/or updating the positioning target terminal historical location information.
  • the method further includes:
  • the location service network side is based on at least one of a work cycle time length of the satellite positioning system working module, a current working state and/or parameter configuration of the wireless network communication working module in the positioning target terminal, and at least one of current services carried by the wireless network communication working module, Determine whether the wireless network communication working module needs to adjust the working state, and calculate the new working cycle time of the wireless network communication working module and the parameters of each time window.
  • the method further includes:
  • the positioning service network side allocates and communicates with the next uplink transmission for the positioning of the wireless network communication working module of the positioning target terminal according to the working cycle time length of the working module of the satellite positioning system. Bit operations related bandwidth resources.
  • the method further includes: positioning the target terminal satellite positioning system working module to complete the navigation satellite orbit tracking operation, and using the wireless network communication working module to the positioning service network
  • the side transmits the original location information and sends a flag requesting to enter the power saving working state.
  • An auxiliary global satellite positioning system including:
  • the positioning service network side is configured to calculate a working cycle time length of the working module of the satellite positioning system according to the moving state of the positioning target terminal;
  • the positioning target terminal is configured to adjust an operating parameter of the satellite positioning system working module according to the working cycle time length, and control the satellite positioning system working module and/or the wireless network communication working module to enter a power saving working state.
  • the positioning service network side is configured to: calculate, according to the received original location information, the corrected final location information of the positioning target terminal, and thereby create and/or update the positioning target terminal history. List of location information;
  • the positioning service network side is further configured to: according to a working cycle time length of the satellite positioning system working module, and a current working state and/or a parameter of the wireless network communication working module in the positioning target terminal. At least one of the current services carried by the configuration and the wireless network communication working module determines whether the wireless network communication working module needs to adjust the working state, and calculates a new working cycle time of the wireless network communication working module and each time window parameter.
  • the positioning network service side is further configured to:
  • the active advance is the positioning target.
  • the wireless network communication working module of the target terminal allocates bandwidth resources related to the next uplink transmission positioning operation.
  • the satellite positioning system working module of the positioning target terminal is further configured to:
  • the wireless network communication working module After completing the navigation satellite orbit tracking operation, the wireless network communication working module transmits the original location information to the positioning service network side and sends a flag requesting to enter the power saving working state.
  • the power saving method and system in the auxiliary global satellite positioning system obtaineds the working cycle time length of the working module of the satellite positioning system in the positioning target terminal by using the positioning service network side, so that the positioning target terminal is moving slowly or at rest.
  • the power of the positioning target terminal and/or its carrier can be saved; in addition, the bandwidth of the working module of the wireless communication network system can be actively allocated according to the working cycle time length of the working module of the satellite positioning system, thereby Reduce the bandwidth resource consumption of the working module of the wireless network communication system.
  • FIG. 1 is a schematic structural view of an auxiliary global satellite positioning system according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a positioning target terminal in FIG.
  • FIG. 3 is a schematic structural diagram of an auxiliary global satellite positioning system according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a positioning target terminal in FIG. 3;
  • FIG. 5 is a flowchart of a method for assisting a global satellite positioning system in power saving according to an embodiment of the present invention
  • FIG. 6 is a flow chart of interaction between a positioning target terminal and a positioning service network side in FIG. 2
  • FIG. 7 is a positioning target terminal in FIG.
  • FIG. 8 is a flow chart of interaction between the positioning target terminal and the positioning service network side in FIG. 4
  • FIG. 9 is a specific interaction flowchart of the positioning target terminal and the positioning service network side in FIG. 4
  • 10 is a working flow chart of the positioning service network side in FIG. 1;
  • FIG. 11 is a working flow chart of the positioning target terminal in FIG. 1;
  • 12 is a working flow chart of the positioning service network side in FIG. 3;
  • 13 is a flowchart showing the operation of the positioning target terminal in FIG. 3;
  • FIG. 14 is a schematic diagram showing a working cycle time length level conversion of a working module of a positioning target terminal satellite positioning system according to an embodiment of the present invention
  • FIG. 15 is a diagram showing the configuration of each time window of a working time period of a wireless network communication working module of a positioning target terminal according to an embodiment of the present invention. detailed description
  • FIG. 1 is a schematic diagram showing the structure of an auxiliary global satellite positioning system, which is composed of a satellite positioning system, a positioning target terminal, and a positioning service network side.
  • the satellite positioning system can be any existing satellite navigation system, such as the current GPS positioning system, Galileo satellite navigation system, GLONASS system, Beidou satellite navigation system.
  • the positioning target terminal in FIG. 1 may be any connection function integrating a wireless communication network (for example, various types of cellular networks, wireless local area networks, etc.), and a satellite positioning system satellite signal receiving function, and the positioning target terminal may It can be hand-held or car-mounted.
  • the auxiliary satellite positioning function for the positioning target terminal can be divided into five main functional unit modules.
  • the mobile positioning central master control and operation processing module is responsible for the control scheduling and information processing computing tasks of the entire positioning function, and the module can interact with the remaining four modules.
  • the user interaction module is based on interaction with the mobile positioning central master control and operation processing module, and mainly completes positioning parameter related parameter initial configuration, positioning function event message report, and user control message transmission execution.
  • the satellite positioning system working module is based on the interaction with the mobile positioning central master control and arithmetic processing module, mainly completes the satellite positioning signal reception, and processes the satellite positioning signal to obtain the original position information of the positioning target terminal.
  • the wireless network communication system module completes the connection with the positioning network service side and the transmission and reception of the corresponding positioning operation related message based on the interaction with the mobile positioning central master and the operation processing module.
  • the positioning information receiving module receives the final position of the positioning target terminal from the mobile positioning central master control and the operation processing module based on the interaction with the mobile positioning central master control and the operation processing module. Set the information.
  • the positioning service network side is a general term for various network element entities on the side of the wireless communication network system that provides auxiliary services for the wireless positioning function.
  • different network element entities may be used.
  • the functions of the positioning service network side for example, in the Long Term Evolution (LTE) network of the 3rd Generation Partnership Project (3GPP), the function of the positioning service network side is mainly by the evolved network base station. (E-UTRAN NodeB, eNodeB) and the Evolved Serving Mobile Location Centre (E-SMLC) are jointly completed.
  • LTE Long Term Evolution
  • 3GPP 3rd Generation Partnership Project
  • FIG. 3 is a schematic structural diagram of an auxiliary global satellite positioning system according to another embodiment of the present invention.
  • the auxiliary global satellite positioning system is composed of a satellite positioning system, a positioning target terminal, a positioning service network side, a positioning gateway receiving positioning information, or an application platform.
  • the positioning information receiving end in the auxiliary global positioning system structure is not the positioning target terminal itself, but a specific positioning information receiving gateway or application platform;
  • the positioning target terminal structure in the auxiliary global satellite positioning system structure is also different from the first one.
  • 4 is a schematic structural view of a positioning target terminal in FIG. 3. As shown in FIG. 4, the positioning target terminal does not have a positioning information receiving module, and there is no corresponding final position information receiving processing operation.
  • Assisted global satellite positioning is a positioning method that supports and enhances the integrated satellite positioning function in the locating terminal device by locating the network auxiliary service provided by the wireless communication network to which the target terminal device is connected. Based on the assisted global satellite positioning method, various performance indicators of the positioning operation of the positioning target terminal device can be improved, including the first connection time, the positioning accuracy, and the response time.
  • the positioning target terminal there are two costs for the positioning target terminal to complete the assisted global satellite positioning operation: First, it is necessary to locate multiple modules on the target terminal to work at the same time, which leads to The power consumed by the system is increased, and the positioning target terminal device cannot support excessive power consumption whether it is handheld or on-board; in addition, the positioning target terminal needs to complete the assisted global satellite positioning operation, and needs to be performed with the wireless communication network service side multiple times. Interaction, which requires the use of bandwidth resources of wireless network systems that are already very tight.
  • the power saving working mechanism can save the power consumption of the positioning target terminal and reduce the bandwidth consumption of the wireless network.
  • FIG. 5 it is a working flow chart of the auxiliary global satellite positioning system in FIG. 1 above. The process includes the following steps:
  • the positioning service network side calculates the working cycle time length of the working module of the satellite positioning system according to the moving state of the positioning target terminal; the working cycle time length of the working module of the satellite positioning system refers to the length of time for acquiring the original location information.
  • the positioning target terminal adjusts an operating parameter of the satellite positioning system working module according to the working cycle time length, and controls the satellite positioning system working module and/or the wireless network communication working module to enter a power saving working state. For example, if the satellite positioning system working module acquires the original location information for a long time, the working parameters can be adjusted, so that the satellite positioning system working module enters the corresponding level of power saving state during the time period to achieve the purpose of power saving.
  • the method flow in FIG. 5 above may specifically include:
  • the positioning target terminal sends the original positioning information and the positioning operation related information to the positioning service network side to interact with the positioning service network side to complete the estimation of the mobile state.
  • the positioning service network side completes the positioning target terminal final position correction calculation and the positioning operation control message encapsulation
  • the positioning service network side downlink transmission encapsulated final location information and positioning operation control Making a message to the location target terminal;
  • the positioning target terminal receives the processed final location information, and adjusts the working status of each working module and the corresponding parameter according to the received downlink control message.
  • FIG. 7 a detailed flowchart for interacting with the positioning target terminal and the positioning service network side in the assisted global satellite positioning system shown in FIG. 1 above is shown.
  • the process may specifically include the following steps:
  • the positioning target terminal uses its wireless network communication working module to transmit original location information to the positioning service network side and enter a power saving working state request message.
  • the positioning service network processes the original positioning information, configures each working module control message of the positioning target terminal, and actively allocates an uplink bandwidth resource for the positioning target terminal.
  • the positioning target terminal controls its positioning information receiving module to receive the processing final location information, and adjusts the working state of each working module based on the received downlink control message and applies the corresponding configuration parameter;
  • the satellite positioning system working module of the positioning target terminal acquires new original location information of the positioning target terminal according to the newly configured working parameter.
  • the wireless network communication working module of the positioning target terminal transmits a new power saving working state request and/or newly acquired original location information in an uplink bandwidth resource actively allocated by the positioning service network side;
  • the positioning service network side processes the received original location information of the positioning target terminal, configures a new control message for the positioning target terminal, and re-allocates the bandwidth resource of the next uplink transmission positioning operation related information for the positioning target terminal.
  • the positioning service network side downlink transmits new terminal location information to the positioning target terminal, and a new control message for adjusting the configuration of each working module state and parameters.
  • FIG. 8 is a flow chart showing the operation of the assisted global satellite positioning system in the foregoing embodiment shown in Figure 3. As shown in FIG. 8, the process may include the following steps:
  • the positioning target terminal sends the original positioning information and the positioning operation related information to the positioning service network side to interact with the positioning service network side to complete the estimation of the mobile state.
  • the positioning service network side completes the final location correction calculation of the positioning target terminal and the positioning operation control message encapsulation
  • the positioning service network lateral positioning information receiving gateway or the application platform transmits a final location message.
  • the positioning service network side downlink transmits the encapsulated positioning operation control message.
  • the positioning target terminal adjusts an operating state of each working module and corresponding parameters according to the received downlink control message.
  • FIG. 9 is a detailed operational flow chart of the assisted global satellite positioning system of Figure 3 above.
  • the process may specifically include the following steps:
  • the positioning target terminal uses its wireless network communication working module to transmit original location information to the positioning service network side and enter a power saving working state request message;
  • the network element that performs the positioning function on the positioning service network side first performs correction calculation on the received original location information to obtain final location information; and then configures each working module in the positioning target terminal according to a predetermined processing decision mechanism and/or control instruction.
  • the positioning service network lateral positioning information receiving gateway or the application platform transmits a final location message.
  • the positioning target terminal adjusts an working state of each working module based on the received downlink control message and applies a corresponding configuration parameter. 5906, the satellite positioning system working module of the positioning target terminal completes the operation of acquiring the original location information of the positioning target terminal according to the newly configured working parameter;
  • the wireless network communication working module of the positioning target terminal transmits a new power saving working state request and/or newly acquired original location information in an uplink bandwidth resource that is actively allocated in advance by the positioning service network side;
  • the positioning service network side processes the received original location information of the positioning target terminal, configures a new control message for the positioning target terminal, and re-allocates the bandwidth resource of the next uplink transmission positioning operation related information for the positioning target terminal;
  • the positioning service network lateral positioning information receiving gateway or the application platform transmits a new final location message of the positioning target terminal
  • the positioning service network side downlink transmits a control message to the positioning target terminal for each new working module state and parameter adjustment configuration.
  • a first specific embodiment is proposed.
  • the positioning target terminal responds to the requirements of the user and/or the system, and the positioning and navigation function is enabled based on the mobile positioning central master and the arithmetic processing module, thereby opening the satellite positioning system working module.
  • Positioning The satellite positioning system working module of the target terminal needs to acquire the auxiliary information required for synchronization with the satellite orbit based on the wireless network communication working module before acquiring the positioning satellite signal, and complete the synchronous operation with the positioning satellite based on the auxiliary information.
  • the positioning target terminal obtains the original location information of the positioning target terminal by using the satellite positioning system working module, the following operations are required:
  • the positioning target terminal determines whether to send the power saving working state request to the positioning service network side based on the user interaction module and/or some predetermined triggering mechanism;
  • the uplink transmission positioning function related module enters the power saving working state request message and/or locates the target terminal original location information to the positioning service network side.
  • the positioning service network side completes the following operations based on the received positioning target terminal uplink transmission message:
  • the positioning service network side since there is only a single data in the historical location information list of the positioning target terminal at this time, the positioning service network side temporarily does not adjust the working parameters of each module of the positioning target terminal, and does not work for the working modules of the positioning target terminal and The corresponding parameters are adjusted, and only the final location information of the positioning target terminal is downlinked to the positioning target terminal through the wireless network communication working module of the positioning target terminal.
  • the positioning target terminal After the positioning target terminal receives the final location information of the downlink transmission, the positioning target terminal transmits the information to the positioning information receiving module through the mobile positioning central control and operation processing module.
  • the positioning target terminal uplink transmission positioning function related module enters the power saving working state request message and the positioning target terminal original position information to the positioning based on the structure of the auxiliary global satellite positioning system shown in FIG. A second embodiment of the invention.
  • the setting target terminal responds to the user and/or the system, and the positioning and navigation function is enabled based on the mobile positioning central master and the operation processing module, and the first specific The operation in the example is similar, the positioning target terminal completes the original location information acquisition and the corresponding decision operation, and transmits the positioning function related module to the positioning network service side to enter the power saving working state request message and/or the positioning target terminal original position information.
  • the positioning service network lateral positioning information receiving gateway or the application platform transmits the final location message of the positioning target terminal. Accordingly, in this example, the positioning target terminal does not perform a receiving processing operation for the final position information.
  • a third embodiment of the present invention is proposed.
  • the positioning target terminal determines whether to send a request for entering a power saving working state to the positioning service network side based on the user interaction module and/or some predetermined triggering mechanism;
  • the positioning target terminal positioning function related module enters the power saving working state request message and/or the positioning target terminal original position information is transmitted to the positioning service network side through the wireless network communication working module.
  • the positioning service network side performs the following operations based on the received positioning target terminal uplink transmission message:
  • the positioning service network side updates the positioning target terminal historical location information list based on the final location information of the positioning target terminal;
  • the positioning service network is located.
  • the side can perform the corresponding operations in accordance with the operational flow shown in FIG.
  • the operation flow in FIG. 10 is specifically described as follows: Firstly, the positioning target terminal movement situation is estimated according to the acquired positioning target terminal position information, and the time window of the satellite positioning system working module acquiring the original original position information is adjusted based on the estimation result using the predetermined dynamic adjustment rule. Length, which is a working time period.
  • the adjustment mechanism for the duty cycle length of the satellite positioning system working module can be used but is not limited to the method of FIG.
  • satellite positioning system working module working cycle time length level time represented by each level
  • the relationship between the lengths increases from small to large, and can be, but is not limited to, a growth mode of 2 times increase;
  • the working cycle time length of the satellite positioning system working module increases the threshold and the level of the threshold.
  • the working cycle time length of the satellite positioning system working module initially entering the power saving state is level 1
  • the maximum working cycle time length of the satellite positioning system working module entering the power saving state is level N.
  • the positioning service network side determines that the current working cycle time length of the satellite positioning system working module is level 1, the moving state of the positioning target terminal is lower than the level decreasing threshold, and the next work of the satellite positioning system working module is still maintained.
  • the cycle time length is level 1; if the positioning service network side determines that the current working cycle time length of the satellite positioning system working module is level 1, the moving state of the positioning target terminal is higher than the level lifting threshold, then adjusting the working module of the satellite positioning system
  • the length of the next work cycle is up to level 2.
  • the positioning service network side determines that the current working cycle time length of the satellite positioning system working module is the level k (l ⁇ k ⁇ N), the moving state of the positioning target terminal is lower than the level decreasing threshold, then adjusting the satellite positioning system The next working cycle time length of the working module is to level k-1; if the positioning service network side determines that the current working cycle time length of the satellite positioning system working module is level k, the moving state of the positioning target terminal is higher than the level increasing threshold, Then adjust the next working cycle time length of the satellite positioning system working module to level k+1.
  • the positioning service network side determines that the current working cycle time length of the satellite positioning system working module is the level N, the moving state of the positioning target terminal is lower than the level decreasing threshold, then adjusting the next working cycle of the satellite positioning system working module
  • the length of time is up to level N-1; if the positioning service network side determines that the current working period time length is the level N, the moving state of the positioning target terminal is higher than the level lifting threshold, and the next working period of the satellite positioning system working module is still maintained.
  • the length of time is level N; if the working cycle time length level of the satellite positioning system working module needs to be adjusted, set the working state adjustment flag to adjust, otherwise set to no adjustment.
  • the working state and the corresponding working parameters based on the current service configuration of the wireless network communication working module are obtained. If the positioning service network side finds that the wireless network communication working module of the positioning target terminal is currently in the continuous receiving and receiving state, and does not carry other service applications other than the auxiliary positioning service, the wireless network communication working module of the positioning target terminal needs to be controlled to enter the discontinuous Transmitting and receiving the power saving working state, and configuring the wireless network communication work of the positioning target terminal based on the working time period of the working module of the satellite positioning system and the definition of the power saving working mechanism in the wireless network communication protocol standard used by the global satellite positioning system The length of one duty cycle of the module's non-continuous transceiver operating state and the two time window configurations of one duty cycle.
  • the working state adjustment flag of the wireless network communication working module of the positioning target terminal is set to be unadjusted.
  • the configuration of a working time period of the non-continuous transceiver working state of the wireless network communication working module of the positioning target terminal is as shown in FIG. 15 , one working time
  • the inter-cycle consists of a non-transceiving time window and a transceiving time window.
  • the positioning service network side transmits three types of messages to the positioning target terminal:
  • the above specific control message includes but is not limited to the following four fields: positioning target terminal satellite positioning system working module working state adjustment flag, positioning target terminal wireless network communication working module working state adjustment flag, positioning target terminal satellite positioning system working module Level (if the positioning target terminal has already agreed with the positioning service network side for the length of time corresponding to each level of the satellite positioning system working module) or a working period time length, locate the level of the wireless network communication working module of the target terminal (if the positioning target The terminal has already agreed with the positioning service network side for the length of time corresponding to each level of the wireless network communication working module or a working period length.
  • the value of the first two identifier bit fields of the specific control message may be determined based on whether the last two fields need to be filled.
  • the positioning target terminal performs the following three types of downlink message processing operations as follows:
  • the mobile positioning central master control and operation processing module transmits the final position information of the positioning target terminal to the positioning information receiving module;
  • FIG. 11 shows a processing procedure of the downlink specific control message that the positioning target terminal operates on the received positioning function operation in the above embodiment. Referring to FIG. 11 , if the positioning target terminal satellite positioning system working module working state adjustment flag bit and the positioning target terminal wireless network communication working module working state adjustment flag point indicate no adjustment, the positioning target terminal does not adjust the currently configured work.
  • the positioning target terminal is based on the specific message transmitted above
  • the working period time length of the working module of the positioning target terminal satellite positioning system or the working time period of the working module of the satellite positioning system is configured.
  • the positioning target terminal controls the wireless network communication working module to enter the non-transmission time window according to the received downlink control message according to the definition of the wireless network communication protocol standard used in the assisted global satellite positioning system of the present invention, and according to the time in the downlink transmission message
  • the parameter starts the timer, and the satellite positioning system working module acquires a new original position information in the window.
  • the positioning target terminal controls the wireless network communication working module to end the non-transceiving working state to enter the sending and receiving time window.
  • the positioning target terminal controls the uplink bandwidth resource allocated by the wireless network communication working module in advance on the positioning service network side. Perform the upstream transfer operation described at the beginning of this example.
  • the location service network side After acquiring the final location information of the location target terminal based on the original location information of the uplink transmission of the location target terminal, the location service network side transmits the final location information to the location information receiving gateway or the application platform.
  • the message to be transmitted to the positioning target terminal is changed from the third category to the second category: 1)
  • the auxiliary global satellite based on the present invention The definition of the wireless network communication protocol standard used in the bit system controls the control message of the wireless network communication working module of the positioning target terminal to enter the non-continuous transceiver working state; 2) according to the above-mentioned decision operation and adjusting the analysis and calculation result, the package service serves the positioning Specific control messages for functional operations.
  • the positioning target terminal performs the following two types of downlink message processing operations as follows: 1) Based on the definition of the wireless network communication protocol standard used in the assisted global satellite positioning system of the present invention, controlling the wireless network communication working module to enter the discontinuous transceiver power saving working state And applying the corresponding time parameter configuration; 2) processing the received downlink specific control message serving the positioning function operation.
  • the positioning target terminal processes the received downlink specific control message for the operation of the positioning function as follows: If the positioning target terminal satellite positioning system working module working state adjustment flag, the positioning target terminal wireless network communication working module works If the status adjustment flag indicates no adjustment, the positioning target terminal does not adjust the currently configured working module working parameters; if the positioning target terminal satellite positioning system working module working status adjustment flag indicates adjustment, the positioning target terminal wireless network communication module works The status adjustment flag indicates no adjustment, and the positioning target terminal configures the working time period of the satellite positioning system working module based on a working period time length or level of the positioning target terminal satellite positioning system working module included in the specific message transmitted above. Other operations are the same as the aforementioned third embodiment.
  • a fifth embodiment of the present invention is proposed.
  • the positioning service network side completes the configuration operation of the next working cycle time length of the working module of the positioning target terminal satellite positioning system based on the dynamic adjustment mechanism. Then, based on the service features currently carried by the wireless network communication working module of the target terminal, the working state and the corresponding working parameters are configured.
  • the content of the fifth embodiment differs from the third embodiment in that: if the positioning service network side finds that the wireless network communication working module of the positioning target terminal is currently in a discontinuous manner Transceiver status, and the current working period length of the wireless network communication working module is the same as the length of the next working period that the satellite positioning system working module has configured, then the working parameter adjustment flag of the wireless network communication working module of the positioning target terminal is set to Adjustment.
  • a sixth embodiment of the present invention is proposed.
  • the positioning service network side completes the configuration operation of the next working cycle time length of the working module of the positioning target terminal satellite positioning system based on the dynamic adjustment mechanism. Then, based on the service characteristics currently carried by the wireless network communication working module of the target terminal, the working state and the corresponding working parameters are configured.
  • the content of the sixth embodiment differs from the fourth embodiment is as follows: if the positioning service network side finds that the wireless network communication working module of the positioning target terminal is currently in a non-continuous transmitting and receiving state, and the current working cycle of the wireless network communication working module If the length is the same as the length of the next working cycle that has been configured in the working module of the satellite positioning system, the working parameter adjustment flag of the wireless network communication working module of the positioning target terminal is not adjusted.
  • a seventh embodiment of the present invention is proposed.
  • the positioning service network side obtains the next work of the positioning target terminal satellite positioning system working module based on the dynamic adjustment mechanism After the length of the cycle time, the positioning service network side configures the working state and the corresponding working parameters based on the service features currently carried by the wireless network communication working module of the positioning target terminal.
  • the seventh embodiment is different from the third embodiment and the fifth embodiment in that: if the positioning service network side finds that the wireless network communication working module of the positioning target terminal is currently in a non-continuous transceiver state, and the wireless network communication working module If the length of the current one duty cycle is different from the length of the next working time period that the satellite positioning system working module has configured, perform the following operations:
  • the wireless network communication working module of the terminal does not adjust the non-continuous transceiver working state adjustment flag, and the length of one working cycle of the working module of the positioning target terminal satellite positioning system is -sm ;
  • Step ii setting the working parameter adjustment flag of the positioning target terminal satellite positioning system working module to be adjusted, setting the working state adjustment flag of the wireless network communication working module of the positioning target terminal to be adjusted, and configuring the next working part of the positioning target terminal satellite positioning system working module
  • the working cycle time length is one working cycle time length of the wireless network communication working module configured to locate the target terminal is 7
  • the current working cycle time length of the working module of the positioning target terminal satellite positioning system is ⁇
  • the configured positioning target terminal satellite positioning system working module next working week The length of the period is Tn - SNS , and Tn - SNS is equal to TsNS ;
  • the current working period of the wireless network communication working module is T , cs , and the length of the next working period to be configured by the wireless network communication working module of the positioning target terminal is If ⁇ ⁇ then proceed as follows: Step i, first express 7 as (where n takes an integer greater than 0,
  • the non-continuous transceiver working state adjustment flag of the terminal's wireless network communication working module is not adjusted, and the length of one working cycle of the working module of the positioning target terminal satellite positioning system is Tn - sm ;
  • Step ii setting the working parameter adjustment flag of the positioning target terminal satellite positioning system working module to be unadjusted, setting the working state adjustment flag of the wireless network communication working module of the positioning target terminal to be adjusted, and configuring the wireless network communication working module of the positioning target terminal
  • the length of one work cycle is
  • the receiving operation of the positioning target terminal for the specific downlink control message is as shown in the flow in FIG. 11: if the positioning target terminal satellite positioning system working module parameter adjustment flag indicates If the working status adjustment flag of the wireless network communication working module of the positioning target terminal is not adjusted, the positioning target terminal configures the satellite based on a working period length of the satellite positioning system working module in the received specific downlink control message. Positioning system working module one working cycle time length;
  • the positioning target terminal satellite positioning system working module parameter adjustment flag indicates that the positioning
  • the positioning target terminal's wireless network communication working module working state adjustment flag indication is adjusted
  • the positioning target terminal is based on the received satellite in the specific downlink control message.
  • the positioning target terminal satellite positioning system working module parameter adjustment flag indicates that the wireless network communication working module working state adjustment flag indication of the positioning target terminal is not adjusted
  • the positioning target terminal is based on the received specific downlink control message.
  • a working cycle time length of the wireless network communication working module configuring a working cycle time length of the wireless network communication working module, and further defining a power saving working mechanism according to the definition of the wireless network communication protocol standard used in the assisted global satellite positioning system of the present invention, The length of the sending and receiving window and the length of the non-transceiving window after the wireless network communication working module of the positioning target terminal enters the power saving working state is configured.
  • an eighth embodiment of the present invention is proposed.
  • the positioning service network side obtains the next work of the positioning target terminal satellite positioning system working module based on the dynamic adjustment mechanism After the length of the cycle time, the service network side is based on the service currently carried by the wireless network communication working module of the positioning target terminal. Sign, configure the working status and the corresponding working parameters.
  • the eighth embodiment differs from the fourth embodiment and the sixth embodiment in that: if the positioning service network side finds that the wireless network communication working module of the positioning target terminal is currently in a non-continuous transmission and reception state, and the wireless network communication working module The length of the current one working cycle is different from the length of the next working time period of the satellite positioning system working module, and the respective working cycle time length configuration operations of the two working modules as described in the foregoing seventh embodiment are performed.
  • the positioning target terminal performs the operation of receiving the above specific downlink control message as shown in the flow in FIG. 13:
  • the positioning target terminal satellite positioning system working module parameter adjustment flag indicates that the positioning of the wireless network communication working module working status adjustment flag of the positioning target terminal is not adjusted, the positioning target terminal is based on the received specific downlink control message. a working cycle time length of the satellite positioning system working module, configuring a working period length of the satellite positioning system working module;
  • the positioning target terminal satellite positioning system working module parameter adjustment flag indicates that the positioning
  • the positioning target terminal's wireless network communication working module working state adjustment flag indication is adjusted
  • the positioning target terminal is based on the received satellite in the specific downlink control message.
  • the positioning target terminal configures a working period length of the wireless network communication working module based on a working period length of the wireless network communication working module in the received specific downlink control message, and further is based on the auxiliary global satellite positioning system of the present invention.
  • the wireless network communication protocol standard used in the definition defines a power saving working mechanism, and configures the length of the transmitting and receiving window and the length of the non-transceiving window after the wireless network communication working module of the positioning target terminal enters the power saving working state.
  • the power saving method and system in the assisted global satellite positioning system provided by the present invention can save power of the positioning target terminal and reduce the working module of the wireless network communication system when the assisted global satellite positioning operation is enabled. Bandwidth resource consumption.

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Abstract

本发明提供一种辅助全球卫星定位系统中的节电方法和系统,均可由定位服务网络侧根据定位目标终端的移动状态,计算卫星定位系统工作模块的工作周期时间长度;定位目标终端根据所述工作周期时间长度调整卫星定位系统工作模块的工作参数,控制卫星定位系统工作模块和/或无线网络通信工作模块进入节电工作状态。本发明所提供的辅助全球卫星定位系统中的节电方法和系统,可以在启用辅助全球卫星定位操作时,节省定位目标终端的电能,并降低无线网络通信系统工作模块的带宽资源消耗。

Description

辅助全球卫星定位系统中的节电方法及系统 技术领域
本发明涉及无线通信技术领域, 尤其涉及一种辅助全球卫星定位系统 中的节电方法及辅助全球卫星定位系统。 背景技术
在现有的各种定位技术中, 辅助全球卫星定位系统, 例如, A-GPS ( Assisted-Global Positioning System, 辅助 GPS ), 是一项在定位服务功能 各项性能指标、 系统设备复杂度两个方面都非常出色的无线定位功能实现 方案。 辅助全球卫星定位系统通常由定位目标终端、 卫星定位系统、 定位 服务网络侧、 定位信息接收端组成。 在辅助全球卫星定位系统定位操作过 程中, 定位目标终端按固定的周期接收定位卫星的原始信号, 以计算手机 到卫星的伪距, 并将计算结果传输给定位服务网络侧。 定位服务网络侧基 于定位目标终端所传输的信息以及定位服务网络侧辅助定位设备提供的辅 助信息完成对定位目标终端位置的修正计算, 再将计算结果作为定位目标 终端的最终位置信息传输给定位信息接收端。
从以上的操作流程可以看到, 辅助全球卫星定位系统的定位操作虽然 可以带来无线定位功能性能上的提升, 但是相应的也会有一些代价: 定位 目标终端需要开启卫星定位系统工作模块以接收卫星定位系统的信号, 并 且还要开启无线网络通信工作模块并多次与定位服务网络侧进行交互。 当 定位目标终端进行长时间周期性定位操作时, 需要长时间开启卫星定位系 统工作模块以接收卫星信号, 并且长时间开启无线网络通信工作模块以完 成与定位服务网络侧的交互操作, 如果上述两个模块都长期处于工作状态, 则会消耗定位目标终端的大量电能。 发明内容
本发明的主要目的在于提供一种辅助全球卫星定位系统中的节电方法 及系统, 旨在启用辅助全球卫星定位操作时, 节省定位目标终端的电能。
为了达到上述目的, 本发明的技术方案是这样实现的:
一种辅助全球卫星定位系统中的节电方法, 包括以下步骤:
根据定位目标终端的移动状态, 定位服务网络侧计算卫星定位系统工 作模块的工作周期时间长度;
定位目标终端根据所述工作周期时间长度调整卫星定位系统工作模块 的工作参数, 控制卫星定位系统工作模块和 /或无线网络通信工作模块进入 节电工作状态。
所述定位服务网络侧计算所述工作周期时间长度的过程包括: 基于接收到的原始位置信息计算修正后所得到的定位目标终端最终位 置信息, 据此创建和 /或更新定位目标终端历史位置信息列表;
根据所述历史位置信息列表对定位目标终端的移动状态进行估算, 并 基于估算结果使用预置的动态调整规则计算卫星定位系统工作模块的工作 周期时间长度。
在计算得到所述工作周期时间长度之后, 该方法还包括:
定位服务网络侧依据卫星定位系统工作模块的工作周期时间长度、 定 位目标终端中无线网络通信工作模块的当前工作状态和 /或参数配置、 无线 网络通信工作模块所承载的当前业务中至少之一, 判断无线网络通信工作 模块是否需要调整工作状态, 并计算无线网络通信工作模块的新工作周期 时间以及各时间窗口参数。
所述进入节电工作状态之后, 该方法还包括:
定位服务网络侧根据卫星定位系统工作模块的工作周期时间长度, 主 动提前为定位目标终端的无线网络通信工作模块分配与下一次上行传输定 位操作相关的带宽资源。
所述定位服务网络侧计算所述工作周期时间长度之前, 该方法还包括: 定位目标终端的卫星定位系统工作模块在完成导航卫星轨道跟踪操作 后, 通过自身的无线网络通信工作模块向定位服务网络侧传输原始位置信 息并发送请求进入节电工作状态的标识位。
一种辅助全球卫星定位系统, 包括:
定位服务网络侧, 用于根据定位目标终端的移动状态, 计算卫星定位 系统工作模块的工作周期时间长度;
定位目标终端, 用于根据所述工作周期时间长度调整卫星定位系统工 作模块的工作参数, 控制卫星定位系统工作模块和 /或无线网络通信工作模 块进入节电工作状态。
所述定位服务网络侧在计算所述工作周期时间长度时, 用于: 基于接收到的原始位置信息计算修正后所得到的定位目标终端最终位 置信息, 据此创建和 /或更新定位目标终端历史位置信息列表;
根据所述历史位置信息列表对定位目标终端的移动状态进行估算, 并 基于估算结果使用预置的动态调整规则计算卫星定位系统工作模块的工作 周期时间长度。
所述定位服务网络侧在计算得到所述工作周期时间长度之后, 还用于: 依据卫星定位系统工作模块的工作周期时间长度、 定位目标终端中无 线网络通信工作模块的当前工作状态和 /或参数配置、 无线网络通信工作模 块所承载的当前业务中至少之一, 判断无线网络通信工作模块是否需要调 整工作状态, 并计算无线网络通信工作模块的新工作周期时间以及各时间 窗口参数。
所述进入节电工作状态之后, 所述定位网络服务侧还用于:
根据卫星定位系统工作模块的工作周期时间长度, 主动提前为定位目 标终端的无线网络通信工作模块分配与下一次上行传输定位操作相关的带 宽资源。
计算所述工作周期时间长度之前, 所述定位目标终端的卫星定位系统 工作模块还用于:
在完成导航卫星轨道跟踪操作后, 通过无线网络通信工作模块向定位 服务网络侧传输原始位置信息并发送请求进入节电工作状态的标识位。
本发明所提供的辅助全球卫星定位系统中的节电方法和系统, 利用定 位服务网络侧获取定位目标终端中卫星定位系统工作模块的工作周期时间 长度, 可使得定位目标终端在移动緩慢或静止状态时, 进入节电工作状态, 从而可节省定位目标终端和 /或其载体的电能; 此外, 还可根据卫星定位系 统工作模块的工作周期时间长度, 主动为无线通信网络系统工作模块分配 带宽, 从而降低无线网络通信系统工作模块的带宽资源消耗。 附图说明
图 1为本发明一实施方式中辅助全球卫星定位系统的结构示意图; 图 2为图 1中定位目标终端的结构示意图;
图 3为本发明一实施方式中辅助全球卫星定位系统的结构示意图; 图 4为图 3中定位目标终端的结构示意图;
图 5为本发明一实施方式中辅助全球卫星定位系统节电方法的流程图; 图 6为图 2中定位目标终端与定位服务网络侧的交互流程图; 图 7为图 2中定位目标终端与定位服务网络侧的具体交互流程图; 图 8为图 4中定位目标终端与定位服务网络侧的交互流程图; 图 9为图 4中定位目标终端与定位服务网络侧的具体交互流程图; 图 10为图 1中定位服务网络侧的工作流程图;
图 11为图 1中定位目标终端的工作流程图;
图 12为图 3中定位服务网络侧的工作流程图; 图 13为图 3中定位目标终端的工作流程图;
图 14为本发明一实施例中定位目标终端卫星定位系统工作模块一个工 作周期时间长度等级转换示意图;
图 15为本发明一实施例中定位目标终端的无线网络通信工作模块一个 工作时间周期各时间窗口配置情况图。 具体实施方式
图 1所示为一种辅助全球卫星定位系统结构示意图, 由卫星定位系统、 定位目标终端、 定位服务网络侧构成。 其中, 卫星定位系统可以是现有的 各种卫星导航系统, 比如现今运行的 GPS定位系统、伽利略卫星导航系统、 GLONASS系统、北斗卫星导航系统等。 图 1中的定位目标终端可以是任何 集成了无线通信网络(例如各种类型的蜂窝网络、 无线局域网等) 的连接 功能, 以及卫星定位系统卫星信号接收功能的移动终端, 这种定位目标终 端可以是手持的也可以是车载的。
参照图 2, 为本发明中定位目标终端的结构示意图。针对定位目标终端 的辅助卫星定位功能, 可以将其划分为五个主要的功能单元模块。 其中, 移动定位中央主控、 运算处理模块负责整个定位功能的控制调度、 信息处 理运算任务, 该模块可以与其余四个模块进行交互。 用户交互模块基于与 移动定位中央主控、 运算处理模块的交互, 主要完成定位功能相关参数初 始化配置, 定位功能事件消息报告、 用户控制消息传输执行。 卫星定位系 统工作模块基于与移动定位中央主控、 运算处理模块的交互, 主要完成卫 星定位信号接收, 并对卫星定位信号进行处理运算以获得定位目标终端原 始位置信息。 无线网络通信系统模块基于与移动定位中央主控、 运算处理 模块的交互, 完成与定位网络服务侧的连接以及相应的定位操作相关消息 的传输与接收。 定位信息接收模块基于与移动定位中央主控、 运算处理模 块的交互, 从移动定位中央主控、 运算处理模块接收定位目标终端最终位 置信息。
在辅助全球卫星定位系统中, 定位服务网络侧是为无线定位功能提供 辅助服务的无线通信网络系统侧的各种网元实体的统称, 对于不同的无线 通信网络架构, 可以由不同的网元实体承担定位服务网络侧的功能, 比如 在第三代网络合作伙伴计划 ( 3rd Generation Partnership Project, 3GPP ) 的 长期演进(Long Term Evolution, LTE ) 网络中, 定位服务网络侧的功能主 要由演进的网络基站(E-UTRAN NodeB , eNodeB )和演进的移动定位服务 中心 ( Evolved Serving Mobile Location Centre, E-SMLC )共同承担完成。
图 3 为本发明另一实施例中辅助全球卫星定位系统的结构示意图。 参 照图 3 , 该辅助全球卫星定位系统由卫星定位系统、 定位目标终端、 定位服 务网络侧、 接收定位信息的定位网关或者应用平台构成。 相对于第一种辅 助全球卫星定位系统结构示意图, 该种辅助全球卫星定位系统结构中的定 位信息接收端并不是定位目标终端自身, 而是特定的定位信息接收网关或 者应用平台; 并且, 该种辅助全球卫星定位系统结构中的定位目标终端结 构也不同于第一种。 图 4为图 3中定位目标终端的结构示意图。 如图 4所 示, 定位目标终端没有定位信息接收模块, 也没有相应的最终位置信息接 收处理操作。
伴随着无线通信网络系统的发展, 定位功能已经成为了很多新无线业 务应用开展、 增强现有网络性能、 提供更高级别公共安全服务的有力支撑。 辅助全球卫星定位是一种通过定位目标终端设备所连接的无线通信网络提 供的网络辅助服务来支撑、 增强定位终端设备中集成的卫星定位功能的定 位方式。 基于辅助全球卫星定位方法, 可以提高定位目标终端设备定位操 作的各项性能指标, 包含了首次连接时间、 定位精度以及响应时间。 但是 通过图 2、 图 4也可以看到, 定位目标终端要完成辅助全球卫星定位操作有 两个方面的代价: 首先需要定位目标终端上的多个模块同时工作, 这就导 致系统消耗的电能增多, 而定位目标终端设备无论是手持还是车载, 都不 能支持过大的电能消耗; 另外, 定位目标终端要完成辅助全球卫星定位操 作, 需要多次与无线通信网络服务侧进行交互, 这就要需要占用本来就很 紧张的无线网络系统带宽资源。 对辅助全球卫星定位操作特征分析可知, 通过分析定位目标终端或其载体的当前移动性特征, 针对不同的移动性设 置卫星定位系统工作模块合适的工作时间周期, 再配置无线网络通信工作 模块启用相应的节电工作机制, 可以达到节省定位目标终端电能消耗、 降 低无线网络带宽资源消耗的效果。
下面将结合具体实施例描述本发明中辅助全球卫星定位系统工作流 程。 参照图 5 , 为前述图 1中辅助全球卫星定位系统的工作流程图。 该流程 包括以下步骤:
5501 , 定位服务网络侧根据定位目标终端的移动状态, 计算卫星定位 系统工作模块的工作周期时间长度; 卫星定位系统工作模块的工作周期时 间长度是指获取一次原始位置信息的时间长短。
5502, 定位目标终端根据所述工作周期时间长度调整卫星定位系统工 作模块的工作参数, 控制卫星定位系统工作模块和 /或无线网络通信工作模 块进入节电工作状态。 例如, 若卫星定位系统工作模块获取一次原始位置 信息的时间较长, 可调整工作参数, 使卫星定位系统工作模块在该时间段 内进入相应等级的节电状态, 以达到省电目的。
参照图 6, 上述图 5中的方法流程可具体包括:
5601 , 定位目标终端发送原始定位信息以及定位操作相关信息至定位 服务网络侧, 以与定位服务网络侧进行交互, 完成对移动状态的估算;
5602, 定位服务网络侧完成定位目标终端最终位置修正计算以及定位 操作控制消息封装;
5603 , 定位服务网络侧下行传输已封装的最终位置信息及定位操作控 制消息至定位目标终端;
S604, 定位目标终端接收处理最终位置信息, 并基于接收到的下行控 制消息对自身的各工作模块工作状态以及相应参数进行调整。
参照图 7,为前述图 1所示辅助全球卫星定位系统中定位目标终端与定 位服务网络侧进行交互的详细流程图。 该流程可以具体包括以下步骤:
5701 , 定位目标终端利用其无线网络通信工作模块向定位服务网络侧 传输原始位置信息以及进入节电工作状态请求消息;
5702, 定位服务网络处理原始定位信息、 配置定位目标终端各工作模 块控制消息, 并为定位目标终端主动分配上行带宽资源;
S703 , 定位服务网络侧下行传输定位目标终端最终位置信息以及各工 作模块工作状态、 参数调整配置的控制消息;
S704, 定位目标终端控制其定位信息接收模块接收处理最终位置信息, 并基于接收到的下行控制消息调整自身的各工作模块工作状态并应用相应 的配置参数;
S705 , 定位目标终端的卫星定位系统工作模块依据新配置的工作参数 获取定位目标终端新的原始位置信息;
S706, 定位目标终端的无线网络通信工作模块在定位服务网络侧主动 分配的上行带宽资源中传输新的节电工作状态请求和 /或新获取的原始位置 信息;
S707 , 定位服务网络侧处理接收到的定位目标终端原始位置信息、 配 置新的针对定位目标终端的控制消息, 并重新为定位目标终端主动分配下 一次上行传输定位操作相关信息的带宽资源;
S708 , 定位服务网络侧下行传输给定位目标终端新的最终位置信息以 及新的对各工作模块状态、 参数调整配置的控制消息。
图 8是前述图 3所示实施例中辅助全球卫星定位系统的工作流程图。 如图 8所示, 该流程可包括以下步骤:
5801 , 定位目标终端发送原始定位信息以及定位操作相关信息至定位 服务网络侧, 以与定位服务网络侧进行交互, 完成对移动状态的估算;
5802, 定位服务网络侧完成定位目标终端最终位置修正计算以及定位 操作控制消息封装;
5803 , 定位服务网络侧向定位信息接收网关或者应用平台传输最终位 置消息;
S804, 定位服务网络侧下行传输已封装的定位操作控制消息;
S805 , 定位目标终端基于接收到的下行控制消息对自身的各工作模块 工作状态以及相应参数进行调整;
图 9为前述图 3中辅助全球卫星定位系统的详细工作流程图。 该流程 可具体包括以下步骤:
5901 , 定位目标终端利用其无线网络通信工作模块向定位服务网络侧 传输原始位置信息以及进入节电工作状态请求消息;
5902, 定位服务网络侧承担定位功能的网元首先对接收到的原始位置 信息进行修正计算, 以获取最终位置信息; 然后基于预定的处理判决机制 和 /或控制指令配置定位目标终端中各工作模块的工作状态、 参数调整配置 的控制消息, 并为定位目标终端主动分配下一次上行传输定位操作相关信 息的上行带宽资源;
5903 , 定位服务网络侧向定位信息接收网关或者应用平台传输最终位 置消息;
5904, 定位服务网络侧下行传输定位目标终端中各工作模块的工作状 态、 参数调整配置的控制消息;
5905 , 定位目标终端基于接收到的下行控制消息调整各工作模块的工 作状态并应用相应的配置参数; 5906, 定位目标终端的卫星定位系统工作模块依据新配置的工作参数 完成一次获取定位目标终端原始位置信息的操作;
5907 , 定位目标终端的无线网络通信工作模块在定位服务网络侧事先 主动分配的上行带宽资源中传输新的节电工作状态请求和 /或新获取的原始 位置信息;
5908 , 定位服务网络侧处理接收到的定位目标终端原始位置信息、 配 置新的针对定位目标终端的控制消息, 并重新为定位目标终端主动分配下 一次上行传输定位操作相关信息的带宽资源;
5909 , 定位服务网络侧向定位信息接收网关或者应用平台传输定位目 标终端新的最终位置消息;
5910, 定位服务网络侧下行传输给定位目标终端新的各工作模块状态、 参数调整配置的控制消息。
下面将结合具体实施例对前述辅助全球定位系统的工作过程进行详细 说明。
基于图 1 所示的辅助全球定位系统, 提出第一具体实施例。 该实施例 中,假设定位目标终端响应用户和 /或系统的需求,基于移动定位中央主控、 运算处理模块启用定位导航功能, 从而开启卫星定位系统工作模块。 定位 目标终端的卫星定位系统工作模块获取定位卫星信号之前, 需要基于无线 网络通信工作模块获取与卫星轨道同步时所需要的辅助信息, 并基于该辅 助信息完成与定位卫星的同步操作。 定位目标终端利用卫星定位系统工作 模块获取到定位目标终端的原始位置信息后, 需要完成以下操作:
1 ), 定位目标终端基于用户交互模块和 /或一些预定的触发机制判决是 否向定位服务网络侧发送进入节电工作状态请求;
2 ),基于 1 )中的判决结果上行传输定位功能相关模块进入节电工作状 态请求消息和 /或定位目标终端原始位置信息至定位服务网络侧。 定位服务网络侧基于接收到的定位目标终端上行传输消息, 完成以下 操作:
1 ), 首先基于所述原始位置信息以及定位服务网络侧的辅助定位设备 提供的辅助信息完成对定位目标终端位置的修正计算, 从而获取定位目标 终端的最终位置信息;
2 ), 基于定位目标终端的最终位置信息创建定位目标终端的历史位置 信息列表;
3 ) , 基于定位目标终端进入节电工作状态请求、 定位目标终端当前无 线网络通信工作模块工作状态以及所承载的业务特征、 定位服务网络侧的 处理判决机制和 /或控制指令, 设置定位服务网络侧创建的各定位目标终端 所对应的节电工作状态使能标识位;
4 ) , 由于此时在定位目标终端历史位置信息列表中只有单次的数据, 故定位服务网络侧暂时不调整定位目标终端各模块的工作参数, 不对定位 目标终端的各工作模块的工作状态以及相应的参数进行调整, 只是将定位 目标终端的最终位置信息通过定位目标终端的无线网络通信工作模块下行 传输给定位目标终端。
定位目标终端基于其无线网络通信工作模块接收到下行传输的最终位 置信息后, 将该信息通过移动定位中央主控、 运算处理模块传递给定位信 息接收模块。
需要说明的是, 本发明各实施例中, 定位目标终端上行传输定位功能 相关模块进入节电工作状态请求消息和定位目标终端原始位置信息至定位 基于图 3 所示辅助全球卫星定位系统结构, 提出本发明第二具体实施 例。 该具体实施例中, 4叚设定位目标终端响应用户和 /或系统的需求, 基于 移动定位中央主控、 运算处理模块启用定位导航功能, 与前述第一具体实 施例中的操作类似, 定位目标终端完成原始位置信息获取以及相应的判决 操作, 并向定位网络服务侧上行传输定位功能相关模块进入节电工作状态 请求消息和 /或定位目标终端原始位置信息。
定位服务网络侧基于接收到的定位目标终端上行传输消息后, 相对于 前述第一具体实施例, 主要不同在于: 定位服务网络侧向定位信息接收网 关或者应用平台传输定位目标终端的最终位置消息。 相应地, 在该实例中, 定位目标终端不针对最终位置信息进行接收处理操作。
基于图 1 中的辅助全球卫星定位系统结构, 提出本发明第三具体实施 例。 该具体实施例中, 假设定位目标终端当前获取到了第 N ( N>=2 ) 次的 原始位置信息, 定位目标终端的操作如下:
1 ) , 定位目标终端基于用户交互模块和 /或一些预定的触发机制判决是 否向定位服务网络侧发送进入节电工作状态的请求;
2 ) ,基于 1 )中的判决结果将定位目标终端定位功能相关模块进入节电 工作状态请求消息和 /或定位目标终端原始位置信息通过无线网络通信工作 模块传送到定位服务网络侧。
定位服务网络侧基于接收到的定位目标终端上行传输消息, 完成以下 操作:
1 ), 首先基于所述原始位置信息以及定位服务网络侧的辅助定位设备 提供的辅助信息完成对定位目标终端位置的修正计算, 从而获取定位目标 终端的最终位置信息;
2 ), 定位服务网络侧基于定位目标终端的最终位置信息更新定位目标 终端历史位置信息列表;
3 ) , 基于定位目标终端进入节电工作状态请求、 定位目标终端当前无 线网络通信工作模块工作状态以及其承载的业务特征、 定位服务网络侧的 处理判决机制和 /或控制指令, 设置定位服务网络侧的各定位目标终端所对 应的节电工作状态使能标识位;
4 ), 如果定位目标终端对应的节电工作状态使能标识位为使能, 并且 此时在定位目标终端历史位置信息列表中已有 N ( N>=2 )次的数据, 则定 位服务网络侧可按照图 10中所示的操作流程执行相应的操作。
图 10中的操作流程具体说明如下: 首先依照获取的定位目标终端位置 信息估算定位目标终端移动情况, 并基于估算结果使用预定的动态调整规 则调整卫星定位系统工作模块获取一次原始位置信息的时间窗口长度, 即 一个工作时间周期。 针对卫星定位系统工作模块的工作周期时间长度的调 整机制, 可以使用但不限于图 14中的方法。
对图 14中的调整方法说明如下:
首先, 基于定位服务网络侧与定位目标终端的交互, 初始设置一些参 数, 主要包括以下几项: N ( N>=2 )个卫星定位系统工作模块工作周期时 间长度等级(各等级所代表的时间长度之间的关系为从小到大增大, 可以 但不限于 2倍增长的增长方式;), 卫星定位系统工作模块工作周期时间长度 等级提升阔值以及等级下降阔值。 卫星定位系统工作模块初始进入节电状 态的工作周期时间长度为等级 1 ,卫星定位系统工作模块进入节电状态的最 大工作周期时间长度为等级 N。
针对卫星定位系统工作模块的工作周期时间长度进行等级调整时, 可 以分为以下三种情况:
1 ), 若定位服务网络侧判定卫星定位系统工作模块当前的工作周期时 间长度为等级 1 时的定位目标终端的移动状态低于等级下降阔值, 则依旧 保持卫星定位系统工作模块的下一个工作周期时间长度为等级 1 ;若定位服 务网络侧判定卫星定位系统工作模块当前的工作周期时间长度为等级 1 时 的定位目标终端的移动状态高于等级提升阔值, 则调整卫星定位系统工作 模块的下一个工作周期时间长度至等级 2。 2 ), 若定位服务网络侧判定卫星定位系统工作模块当前的工作周期时 间长度为等级 k( l<k<N )时的定位目标终端的移动状态低于等级下降阔值, 则调整卫星定位系统工作模块的下一个工作周期时间长度至等级 k-1; 若定 位服务网络侧判定卫星定位系统工作模块当前的工作周期时间长度为等级 k时的定位目标终端的移动状态高于等级提升阔值,则调整卫星定位系统工 作模块的下一个工作周期时间长度至等级 k+1。
3),若定位服务网络侧判定卫星定位系统工作模块当前的工作周期时间 长度为等级 N时的定位目标终端的移动状态低于等级下降阔值, 则调整卫 星定位系统工作模块的下一个工作周期时间长度至等级 N-1;若定位服务网 络侧判定当前工作周期时间长度为等级 N时的定位目标终端的移动状态高 于等级提升阔值, 则依旧保持卫星定位系统工作模块的下一个工作周期时 间长度为等级 N; 如果卫星定位系统工作模块的工作周期时间长度等级需 要调整, 则设置工作状态调整标识位为调整, 否则设置为不调整。
通过上述动态调整机制得到了定位目标终端卫星定位系统工作模块下 一个工作周期时间长度后, 基于无线网络通信工作模块当前承载的业务特 征配置工作状态以及相应的工作参数。 如果定位服务网络侧发现定位目标 终端的无线网络通信工作模块当前处于连续收发状态, 且未承载除辅助定 位业务之外的其它业务应用, 则需要控制定位目标终端的无线网络通信工 作模块进入非连续收发节电工作状态, 并基于上述卫星定位系统工作模块 的工作时间周期以及辅助全球卫星定位系统所使用的无线网络通信协议标 准中的节电工作机制定义描述, 配置定位目标终端的无线网络通信工作模 块非连续收发工作状态的一个工作周期时间长度以及一个工作周期的两个 时间窗口配置情况。 同时设置定位目标终端的无线网络通信工作模块的工 作状态调整标识位为不调整。 定位目标终端的无线网络通信工作模块非连 续收发工作状态的一个工作时间周期的配置情况如图 15所示, 一个工作时 间周期由一个非收发时间窗口以及一个收发时间窗口组成。
上述调整分析计算操作完成后, 定位服务网络侧下行传输三类消息到 定位目标终端:
1 ), 通过定位目标终端的无线网络通信工作模块下行传输定位目标终 端的最终位置信息给定位目标终端;
2 ), 基于本发明的辅助全球卫星定位系统中使用的无线网络通信协议 标准定义描述, 控制定位目标终端的无线网络通信工作模块进入非连续收 发工作状态的控制消息;
3 )依据上述的判决操作以及调整分析计算结果, 封装服务于定位功能 操作的特定控制消息。
上述特定控制消息包括但不限于以下四个字段: 定位目标终端卫星定 位系统工作模块工作状态调整标识位、 定位目标终端的无线网络通信工作 模块工作状态调整标识位、定位目标终端卫星定位系统工作模块的等级(如 果定位目标终端已经与定位服务网络侧约定好了卫星定位系统工作模块各 等级对应的时间长度)或者一个工作周期时间长度, 定位目标终端的无线 网络通信工作模块的等级(如果定位目标终端已经与定位服务网络侧约定 好了无线网络通信工作模块各等级对应的时间长度)或者一个工作周期时 间长度。 其中, 可以基于上述特定控制消息的前两个标识位字段的取值决 定是否需要填充后两个字段。
定位目标终端针对上述的三类下行消息处理操作如下:
1 ), 移动定位中央主控、 运算处理模块将定位目标终端的最终位置信 息传递给定位信息接收模块;
2 ), 基于本发明的辅助全球卫星定位系统中使用的无线网络通信协议 标准定义描述, 控制无线网络通信工作模块进入非连续收发节电工作状态, 并应用相应的时间参数配置; 3 ) , 对接收到的服务于定位功能操作的下行特定控制消息进行处理。 图 11示出了上述实施例中定位目标终端对接收到的服务于定位功能操 作的下行特定控制消息的处理过程。 参照图 11 , 如果定位目标终端卫星定 位系统工作模块工作状态调整标识位、 定位目标终端的无线网络通信工作 模块工作状态调整标识位都指示不调整, 则定位目标终端不调整当前已配 置的各工作模块工作状态及参数; 如果定位目标终端卫星定位系统工作模 块工作状态调整标识位指示调整, 而定位目标终端无线网络通信模块工作 状态调整标识位指示不调整, 则定位目标终端基于上述传输的特定消息中 包含的定位目标终端卫星定位系统工作模块的一个工作周期时间长度或者 等级配置卫星定位系统工作模块的工作时间周期。
定位目标终端依据接收到的下行控制消息, 按照本发明的辅助全球卫 星定位系统中使用的无线网络通信协议标准定义描述控制无线网络通信工 作模块进入非收发时间窗口, 并依据下行传输消息中的时间参数启动定时 器, 同时卫星定位系统工作模块在所述窗口获取一次新的原始位置信息。 基于定时器控制机制, 定位目标终端控制无线网络通信工作模块结束非收 发工作状态进入收发时间窗口, 在收发时间窗口, 定位目标终端控制无线 网络通信工作模块在定位服务网络侧事先分配的上行带宽资源执行该实例 开头所描述的上行传输操作。
基于前述图 3 的辅助全球卫星定位系统结构, 提出本发明第四具体实 施例。 本实施例相对图 12与图 10中的操作流程有以下不同:
定位服务网络侧在基于定位目标终端上行传输的原始位置信息获取定 位目标终端最终位置信息后, 将该最终位置信息传输到定位信息接收网关 或者应用平台。
定位服务网络侧对定位目标终端的调整配置操作完成后, 要下行传输 到定位目标终端的消息由三类变为二类: 1 )基于本发明的辅助全球卫星定 位系统中使用的无线网络通信协议标准定义描述, 控制定位目标终端的无 线网络通信工作模块进入非连续收发工作状态的控制消息; 2 )依据上述的 判决操作以及调整分析计算结果, 封装服务于定位功能操作的特定控制消 息。
定位目标终端针对上述的二类下行消息处理操作如下: 1 )基于本发明 的辅助全球卫星定位系统中使用的无线网络通信协议标准定义描述, 控制 无线网络通信工作模块进入非连续收发节电工作状态, 并应用相应的时间 参数配置; 2 )对接收到的服务于定位功能操作的下行特定控制消息进行处 理。
参照图 13 , 定位目标终端对接收到的服务于定位功能操作的下行特定 控制消息处理方式如下: 如果定位目标终端卫星定位系统工作模块工作状 态调整标识位、 定位目标终端的无线网络通信工作模块工作状态调整标识 位都指示不调整, 则定位目标终端不调整当前已配置的各工作模块工作参 数; 如果定位目标终端卫星定位系统工作模块工作状态调整标识位指示调 整、 定位目标终端无线网络通信模块工作状态调整标识位指示不调整, 则 定位目标终端基于上述传输的特定消息中包含的定位目标终端卫星定位系 统工作模块的一个工作周期时间长度或者等级, 配置卫星定位系统工作模 块工作时间周期。 其它操作与前述第三具体实施例相同。
基于图 1 中的辅助全球卫星定位系统结构, 提出本发明第五具体实施 例。 如前述第三具体实施例所述, 当辅助全球卫星定位系统完成了前面的 操作, 定位服务网络侧基于动态调整机制完成了对定位目标终端卫星定位 系统工作模块下一个工作周期时间长度的配置操作后, 则基于定位目标终 端的无线网络通信工作模块当前承载的业务特征, 配置工作状态以及相应 的工作参数。 第五具体实施例不同于第三具体实施例的内容在于: 如果定 位服务网络侧发现定位目标终端的无线网络通信工作模块当前处于非连续 收发状态, 且无线网络通信工作模块当前的一个工作周期长度与卫星定位 系统工作模块已配置的下一个工作周期时间长度相同, 则设置定位目标终 端的无线网络通信工作模块工作参数调整标识位为不调整。
基于图 3 中的辅助全球卫星定位系统结构, 提出本发明第六具体实施 例。 如前述第四实施例所述, 当辅助全球卫星定位系统完成了前面的操作, 定位服务网络侧基于动态调整机制完成了对定位目标终端卫星定位系统工 作模块下一个工作周期时间长度的配置操作后, 则基于定位目标终端的无 线网络通信工作模块当前所承载的业务特征, 配置工作状态以及相应的工 作参数。 第六具体实施例不同于第四具体实施例实例的内容在于: 如果定 位服务网络侧发现定位目标终端的无线网络通信工作模块当前处于非连续 收发状态, 且无线网络通信工作模块当前的一个工作周期长度与卫星定位 系统工作模块已配置的下一个工作周期时间长度相同, 则设置定位目标终 端的无线网络通信工作模块工作参数调整标识位为不调整。
基于图 1 中的辅助全球卫星定位系统结构, 提出本发明第七具体实施 例。 如前述第三具体实施例以及第五具体实施例所述, 当辅助全球卫星定 位系统完成前面的所有操作, 并且定位服务网络侧基于动态调整机制得到 了定位目标终端卫星定位系统工作模块下一个工作周期时间长度后, 则定 位服务网络侧基于定位目标终端的无线网络通信工作模块当前承载的业务 特征, 配置工作状态以及相应的工作参数。 第七具体实施例不同于第三具 体实施例及第五具体实施例的内容在于: 如果定位服务网络侧发现定位目 标终端的无线网络通信工作模块当前处于非连续收发状态, 并且无线网络 通信工作模块当前一个工作周期的长度与卫星定位系统工作模块已配置的 下一个工作时间周期的长度不相同, 则执行以下操作:
1 ), 令定位目标终端卫星定位系统工作模块当前的一个工作周期时间 长度为 TsNS ,此时已配置的定位目标终端卫星定位系统工作模块下一个工作 周期时间长度为 Tn-sns, 且7 不等于 T S - 令无线网络通信工作模块当前 一个工作周期长度为 定位目标终端的无线网络通信工作模块待配置的 下一个工作周期时间长度为为 如果 Γ^ 则按以下步骤进行操作: 步骤 i, 首先将7 表达为 _sws ="*7^s+f (其中 n取大于 0的整数,
0 < ί < TWNCS ). 步骤 ii, 基于 i中的表达式, 如果 ί<7/2, 则令7 ^«="^^, 并跳转 到步骤 iv, 否则进入步骤 iii;
步骤 iii, 基于 i中的表达式, 如果 i>=U2 , 则令 f ^n+i ^^; 步骤 iv, 设置定位目标终端卫星定位系统工作模块工作参数调整标识 位为调整, 设置定位目标终端的无线网络通信工作模块非连续收发工作状 态调整标识位为不调整, 配置定位目标终端卫星定位系统工作模块的一个 工作周期时间长度为 -sm
如果 , 则执行以下操作: 步骤 i, 首先令 Tn-,cs =Tn-sns
步骤 ii,设置定位目标终端卫星定位系统工作模块工作参数调整标识位 为调整, 设置定位目标终端的无线网络通信工作模块工作状态调整标识位 为调整, 配置定位目标终端卫星定位系统工作模块的下一个工作周期时间 长度为 配置定位目标终端的无线网络通信工作模块的一个工作周期 时间长度为7
2 )令定位目标终端卫星定位系统工作模块当前的一个工作周期时间长 度为 Τ ,此时已配置的定位目标终端卫星定位系统工作模块下一个工作周 期时间长度为 Tn-SNS, 且 Tn-SNS等于 TsNS; 令无线网络通信工作模块当前一个 工作周期长度为 Tcs,定位目标终端的无线网络通信工作模块待配置的下一 个工作周期时间长度为为 如果 Γ^ 则按以下步骤进行操作: 步骤 i, 首先将7 表达为 (其中 n取大于 0的整数,
0 < ί < TWNCS ). 步骤 ii, 基于 i中的表达式, 如果 ί < 7/2, 则令7 ^« ="^^ , 并跳转 到步骤 iv, 否则进入步骤 iii;
步骤 iii, 基于 i中的表达式, 如果 i >=U2 , 则令 f ^n+i ^^; 步骤 iv, 设置定位目标终端卫星定位系统工作模块工作参数调整标识 位为调整, 设置定位目标终端的无线网络通信工作模块非连续收发工作状 态调整标识位为不调整, 配置定位目标终端卫星定位系统工作模块的一个 工作周期时间长度为 Tn -sm
如果 , 则执行以下操作: 步骤 i, 首先令 Tn -, cs = Tn-sns
步骤 ii,设置定位目标终端卫星定位系统工作模块工作参数调整标识位 为不调整, 设置定位目标终端的无线网络通信工作模块工作状态调整标识 位为调整, 配置定位目标终端的无线网络通信工作模块的一个工作周期时 间长度为
上面的操作完成后, 继续完成如前述第五具体实施例所描述的服务于 定位功能操作的特定下行控制消息的封装操作。 该具体实施例中, 定位目 标终端对于上述特定下行控制消息的接收操作如图 11中的流程操作: 如果定位目标终端卫星定位系统工作模块参数调整标识位指示为调 整, 而定位目标终端的无线网络通信工作模块工作状态调整标识位指示为 不调整, 则定位目标终端基于接收到的特定下行控制消息中的卫星定位系 统工作模块的一个工作周期时间长度, 配置卫星定位系统工作模块一个工 作周期时间长度;
如果定位目标终端卫星定位系统工作模块参数调整标识位指示为调 整、 定位目标终端的无线网络通信工作模块工作状态调整标识位指示为调 整, 则定位目标终端基于接收到的特定下行控制消息中的卫星定位系统工 作模块的一个工作周期时间长度, 配置卫星定位系统工作模块工作周期时 间长度, 还基于接收到的特定下行控制消息中的无线网络通信工作模块的 一个工作周期时间长度, 配置无线网络通信工作模块工作周期时间长度, 并进一步基于本发明的辅助全球卫星定位系统中使用的无线网络通信协议 标准定义描述的节电工作机制, 配置定位目标终端的无线网络通信工作模 块进入节电工作状态后的收发窗口长度和非收发窗口长度。
如果定位目标终端卫星定位系统工作模块参数调整标识位指示为不调 整、 定位目标终端的无线网络通信工作模块工作状态调整标识位指示为调 整, 则定位目标终端基于接收到的特定下行控制消息中的无线网络通信工 作模块的一个工作周期时间长度, 配置无线网络通信工作模块工作周期时 间长度, 并进一步基于本发明的辅助全球卫星定位系统中使用的无线网络 通信协议标准定义描述的节电工作机制, 配置定位目标终端的无线网络通 信工作模块进入节电工作状态后的收发窗口长度和非收发窗口长度。
基于图 3 中的辅助全球卫星定位系统结构, 提出本发明第八具体实施 例。 如前述第四具体实施例及第六具体实施例所述, 当辅助全球卫星定位 系统完成前面的所有操作, 并且定位服务网络侧基于动态调整机制得到了 定位目标终端卫星定位系统工作模块下一个工作周期时间长度后, 则定位 服务网络侧基于定位目标终端的无线网络通信工作模块当前承载的业务特 征, 配置工作状态以及相应的工作参数。 第八具体实施例不同于第四具体 实施例和第六具体实施例的内容在于: 如果定位服务网络侧发现定位目标 终端的无线网络通信工作模块当前处于非连续收发状态, 并且无线网络通 信工作模块当前一个工作周期的长度与卫星定位系统工作模块下一个工作 时间周期的长度不相同, 则执行如前述第七具体实施例中描述的两个工作 模块各自的工作周期时间长度配置操作。
上面的操作完成后, 继续完成如第六具体实施例中描述的服务于定位 功能操作的特定下行控制消息的封装操作。 定位目标终端对于上述特定下 行控制消息的接收操作如图 13中的流程操作:
如果定位目标终端卫星定位系统工作模块参数调整标识位指示为调 整、 定位目标终端的无线网络通信工作模块工作状态调整标识位指示为不 调整, 则定位目标终端基于接收到的特定下行控制消息中的卫星定位系统 工作模块的一个工作周期时间长度, 配置卫星定位系统工作模块一个工作 周期时间长度;
如果定位目标终端卫星定位系统工作模块参数调整标识位指示为调 整、 定位目标终端的无线网络通信工作模块工作状态调整标识位指示为调 整, 则定位目标终端基于接收到的特定下行控制消息中的卫星定位系统工 作模块的一个工作周期时间长度, 配置卫星定位系统工作模块工作周期时 间长度, 还基于接收到的特定下行控制消息中的无线网络通信工作模块的 一个工作周期时间长度, 配置无线网络通信工作模块工作周期时间长度, 并进一步基于本发明的辅助全球卫星定位系统中使用的无线网络通信协议 标准定义描述的节电工作机制, 配置定位目标终端的无线网络通信工作模 块进入节电工作状态后的收发窗口长度和非收发窗口长度。
如果定位目标终端卫星定位系统工作模块参数调整标识位指示为不调 整、 定位目标终端的无线网络通信工作模块工作状态调整标识位指示为调 整, 则定位目标终端基于接收到的特定下行控制消息中的无线网络通信工 作模块的一个工作周期时间长度, 配置无线网络通信工作模块工作周期时 间长度, 并进一步基于本发明的辅助全球卫星定位系统中使用的无线网络 通信协议标准定义描述的节电工作机制, 配置定位目标终端的无线网络通 信工作模块进入节电工作状态后的收发窗口长度和非收发窗口长度。
综上所述可见, 本发明所提供的辅助全球卫星定位系统中的节电方法 和系统, 可以在启用辅助全球卫星定位操作时, 节省定位目标终端的电能, 并降低无线网络通信系统工作模块的带宽资源消耗。
以上仅为本发明的优选实施例, 并非因此限制本发明的专利范围, 凡 是利用本发明说明书及附图内容所作的等效结构或等效流程变换, 或直接 或间接运用在其他相关的技术领域, 均同理包括在本发明的专利保护范围 内。

Claims

权利要求书
1、 一种辅助全球卫星定位系统中的节电方法, 其特征在于, 包括以下 步骤:
根据定位目标终端的移动状态, 定位服务网络侧计算卫星定位系统工 作模块的工作周期时间长度;
定位目标终端根据所述工作周期时间长度调整卫星定位系统工作模块 的工作参数, 控制卫星定位系统工作模块和 /或无线网络通信工作模块进入 节电工作状态。
2、 如权利要求 1所述的方法, 其特征在于, 所述定位服务网络侧计算 所述工作周期时间长度的过程包括:
基于接收到的原始位置信息计算修正后所得到的定位目标终端最终位 置信息, 据此创建和 /或更新定位目标终端历史位置信息列表;
根据所述历史位置信息列表对定位目标终端的移动状态进行估算, 并 基于估算结果使用预置的动态调整规则计算卫星定位系统工作模块的工作 周期时间长度。
3、 如权利要求 2所述的方法, 其特征在于, 在计算得到所述工作周期 时间长度之后, 该方法还包括:
定位服务网络侧依据卫星定位系统工作模块的工作周期时间长度、 定 位目标终端中无线网络通信工作模块的当前工作状态和 /或参数配置、 无线 网络通信工作模块所承载的当前业务中至少之一, 判断无线网络通信工作 模块是否需要调整工作状态, 并计算无线网络通信工作模块的新工作周期 时间以及各时间窗口参数。
4、 如权利要求 3所述的方法, 其特征在于, 所述进入节电工作状态之 后, 该方法还包括:
定位服务网络侧根据卫星定位系统工作模块的工作周期时间长度, 主 动提前为定位目标终端的无线网络通信工作模块分配与下一次上行传输定 位操作相关的带宽资源。
5、 如权利要求 1至 4中任一项所述的方法, 其特征在于, 所述定位服 务网络侧计算所述工作周期时间长度之前, 该方法还包括:
定位目标终端的卫星定位系统工作模块在完成导航卫星轨道跟踪操作 后, 通过自身的无线网络通信工作模块向定位服务网络侧传输原始位置信 息并发送请求进入节电工作状态的标识位。
6、 一种辅助全球卫星定位系统, 其特征在于, 包括:
定位服务网络侧, 用于根据定位目标终端的移动状态, 计算卫星定位 系统工作模块的工作周期时间长度;
定位目标终端, 用于根据所述工作周期时间长度调整卫星定位系统工 作模块的工作参数, 控制卫星定位系统工作模块和 /或无线网络通信工作模 块进入节电工作状态。
7、 如权利要求 6所述的系统, 其特征在于, 所述定位服务网络侧在计 算所述工作周期时间长度时, 用于:
基于接收到的原始位置信息计算修正后所得到的定位目标终端最终位 置信息, 据此创建和 /或更新定位目标终端历史位置信息列表;
根据所述历史位置信息列表对定位目标终端的移动状态进行估算, 并 基于估算结果使用预置的动态调整规则计算卫星定位系统工作模块的工作 周期时间长度。
8、 如权利要求 7所述的系统, 其特征在于, 所述定位服务网络侧在计 算得到所述工作周期时间长度之后, 还用于:
依据卫星定位系统工作模块的工作周期时间长度、 定位目标终端中无 线网络通信工作模块的当前工作状态和 /或参数配置、 无线网络通信工作模 块所承载的当前业务中至少之一, 判断无线网络通信工作模块是否需要调 整工作状态, 并计算无线网络通信工作模块的新工作周期时间以及各时间 窗口参数。
9、 如权利要求 8所述的系统, 其特征在于, 所述进入节电工作状态之 后, 所述定位网络服务侧还用于:
根据卫星定位系统工作模块的工作周期时间长度, 主动提前为定位目 标终端的无线网络通信工作模块分配与下一次上行传输定位操作相关的带 宽资源。
10、 如权利要求 6至 9中任一项所述的系统, 其特征在于, 计算所述 工作周期时间长度之前, 所述定位目标终端的卫星定位系统工作模块还用 于:
在完成导航卫星轨道跟踪操作后, 通过无线网络通信工作模块向定位 服务网络侧传输原始位置信息并发送请求进入节电工作状态的标识位。
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