WO2021027650A1 - Procédé et appareil de diffusion d'informations - Google Patents

Procédé et appareil de diffusion d'informations Download PDF

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Publication number
WO2021027650A1
WO2021027650A1 PCT/CN2020/107096 CN2020107096W WO2021027650A1 WO 2021027650 A1 WO2021027650 A1 WO 2021027650A1 CN 2020107096 W CN2020107096 W CN 2020107096W WO 2021027650 A1 WO2021027650 A1 WO 2021027650A1
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WIPO (PCT)
Prior art keywords
assistance data
positioning assistance
area
terminal
effective
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Application number
PCT/CN2020/107096
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English (en)
Chinese (zh)
Inventor
全海洋
傅婧
李健翔
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大唐移动通信设备有限公司
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Publication of WO2021027650A1 publication Critical patent/WO2021027650A1/fr

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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
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling 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
    • H04W4/12—Messaging; Mailboxes; Announcements
    • 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

Definitions

  • the present invention relates to the field of wireless communication technology, in particular to a method and equipment for broadcasting information.
  • R16NR positioning is discussing how to broadcast positioning assistance data on the base station side.
  • the current method for broadcasting positioning assistance data on the base station side is: the location management entity (Location Management Function, LMF) entity will need to broadcast the positioning assistance
  • LMF Location Management Function
  • the data is sent to the base station, and the base station stores the received positioning assistance data and broadcasts it through System Information (SI).
  • SI System Information
  • the radio resource control (Radio Resource Control, RRC) layer of the terminal receives the broadcast message of positioning assistance data. After that, the positioning assistance data is submitted to the Long Term Evolution Positioning Protocol (LPP) of the Non Access Stratum (NAS) layer for processing.
  • LPF Long Term Evolution Positioning Protocol
  • NAS Non Access Stratum
  • each SI in the NR SI has an area ID (area ID), where the area ID represents the effective area of the positioning assistance data in the SI carrying the area ID.
  • area ID represents the effective area of the positioning assistance data in the SI carrying the area ID.
  • A-GNSS assisted-global navigation satellite positioning system
  • the effective area of assisted-global navigation satellite positioning system (Assisted-Global Navigation Satellite System, A-GNSS) positioning assistance data can be within a few hundred kilometers, and the area ID carried in the SI when NR broadcasts positioning assistance data is determined
  • the effective area is small, so when the existing NR broadcasts positioning assistance data, the size of the effective area corresponding to the area ID carried in the SI is not appropriate, while the A-GNSS positioning assistance data update requires a frequency of 1 second, so the terminal needs to continue to monitor
  • the base station broadcasts messages to obtain new positioning assistance data, and the terminal consumes a lot of power.
  • the embodiments of the present invention provide a method and equipment for broadcasting information, which are used to solve the problem that the terminal continuously monitors the broadcast message of the base station to obtain new positioning assistance data in the prior art, which causes the terminal to consume large power.
  • an embodiment of the present invention provides a method for broadcasting information, the method including:
  • the positioning server determines the effective area of the positioning assistance data and the effective time of the positioning assistance data
  • the positioning server broadcasts the effective area and effective time through the base station, so that the terminal obtains the positioning assistance data again after determining that the positioning assistance data needs to be re-acquired according to the effective area and effective time.
  • the positioning server determines the effective time of the positioning assistance data and the effective area of the positioning assistance data, and broadcasts the effective time of the positioning assistance data and the effective area of the positioning assistance data to the terminal through the base station, so that the terminal receives the positioning assistance data After the effective time and the effective area of the positioning assistance data, determine whether the positioning assistance data needs to be re-acquired according to the effective time and effective area. After determining that the positioning assistance data needs to be re-acquired, re-acquire the positioning assistance data, which is triggered by the terminal Data, avoid the waste of resources caused by the terminal continuously monitoring the broadcast to obtain new positioning assistance data; at the same time, avoid the additional overhead caused by the terminal receiving the same positioning assistance data.
  • the positioning server determines the effective area of the positioning assistance data and the effective time of the positioning assistance data, including:
  • the positioning server determines the effective area of the positioning assistance data and the effective time of the positioning assistance data according to the data type and data source of the positioning assistance data.
  • the above method determines the effective area and effective time according to the data source and data type of the positioning assistance data, and ensures the accuracy of the effective area of the positioning assistance data and the effective time of the positioning assistance data.
  • the positioning server broadcasts the effective area and effective time through the base station, including:
  • the positioning server sends a System Information Broadcast (SIB) message carried in the effective area and/or effective time to the base station, so that the base station broadcasts the SIB message; and/or
  • SIB System Information Broadcast
  • the positioning server sends the effective area and/or effective time to the base station through a new air interface positioning protocol A (NR Positioning Protocol A, NRPPa) message, so that the base station broadcasts the effective area and/or effective time.
  • a new air interface positioning protocol A NR Positioning Protocol A, NRPPa
  • the above method provides two ways of how the positioning server sends the effective time of positioning assistance data and the effective area of the positioning assistance data to the base station to ensure that the base station smoothly receives the effective area of the positioning assistance data sent by the positioning server and the effective time of the positioning assistance data , To broadcast the effective time of the positioning assistance data and the effective area of the positioning assistance data to the terminal, so that the terminal can determine whether the positioning assistance data needs to be reacquired according to the effective area of the positioning assistance data and the effective time of the positioning assistance data.
  • the effective area of positioning assistance data includes one or a combination of the following:
  • RNA radio access network notification area
  • the effective time of positioning assistance data includes one or a combination of the following:
  • the length of the effective time period, the absolute time of the effective time, and the starting System Frame Number (SFN) number of the effective time are the length of the effective time period, the absolute time of the effective time, and the starting System Frame Number (SFN) number of the effective time.
  • an embodiment of the present invention provides a method for broadcasting information, the method including:
  • the base station broadcasts the effective area and effective time to the terminal, so that the terminal can obtain the positioning assistance data again after determining that it needs to reacquire the positioning assistance data according to the effective area and the effective time.
  • the base station receives the effective time of the positioning assistance data and the effective area of the positioning assistance data sent by the positioning server, and broadcasts the effective time of the received positioning assistance data and the effective area of the positioning assistance data to the terminal, so that the terminal is based on the effective The time and effective area determine whether the positioning assistance data needs to be re-acquired. After determining that the positioning assistance data needs to be re-acquired, the positioning assistance data is re-acquired, and the terminal triggers the acquisition of the positioning assistance data to avoid the terminal continuously monitoring the broadcast to obtain new positioning assistance data , Resulting in waste of resources; at the same time, avoid the additional overhead caused by the terminal obtaining the same positioning assistance data.
  • the effective area of the positioning assistance data and the effective time of the positioning assistance data received by the base station from the positioning server include:
  • the base station receives the SIB message of the LPP carrying the effective area and/or effective time sent by the positioning server; and/or
  • the base station receives the NRPPa message carrying the effective area and/or effective time sent by the positioning server.
  • the above method provides that the base station determines the effective time and effective area of the positioning assistance data sent by the positioning server through the LPP SIB message and/or NRPPa message sent by the positioning server, and ensures that the effective area of the positioning assistance data and the positioning assistance are determined
  • the accuracy of the effective time of the data further ensures the accuracy of the effective time and effective area broadcast to the terminal, so that the terminal can more accurately determine whether it needs to reacquire positioning assistance data based on the effective time and effective area. Accuracy can improve the effectiveness of positioning assistance data.
  • the base station broadcasting the effective area and effective time to the terminal includes:
  • the base station broadcasts the SIB message of the LPP carrying the effective area and effective time to the terminal.
  • the base station broadcasting the effective area and effective time to the terminal includes:
  • the base station broadcasts the effective area and effective time in the NRPPa message to the terminal through the RRC message.
  • the above method shows how the base station broadcasts the received effective time and effective area to the terminal.
  • the base station broadcasts the effective time and effective area to the terminal according to different messages sent by the received positioning server.
  • the base station receives the LPP SIB message sent by the positioning server, it directly broadcasts the LPP SIB message to the terminal; after receiving the NRPPa message sent by the positioning server, it analyzes the NRPPa message to determine the effective time and/or validity carried in it Area, and send the effective time and/or effective area carried in the NRPPa message through the RRC message.
  • the base station receives the message sent by the positioning server and broadcasts the effective area of the positioning assistance data and the effective time of the positioning assistance data in different ways, so that the terminal can smoothly receive the effective time and effective area broadcast by the base station.
  • the effective area of positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the effective time of positioning assistance data includes one or a combination of the following:
  • the length of the effective time period, the absolute time of the effective time, and the starting SFN number of the effective time is the length of the effective time period, the absolute time of the effective time, and the starting SFN number of the effective time.
  • an embodiment of the present invention provides a method for broadcasting information, the method including:
  • the terminal After determining that the positioning assistance data needs to be re-acquired according to the effective area and effective time, the terminal re-acquires the positioning assistance data.
  • the terminal receives the effective area of the positioning assistance data and the effective time of the positioning assistance data broadcast by the base station, and determines the need to reacquire the positioning assistance data according to the effective area and the effective time, and then reacquires the positioning assistance data;
  • the area and effective time can determine whether the positioning assistance data needs to be re-acquired.
  • the terminal triggers the re-acquisition of the positioning assistance data, avoiding the waste of resources caused by the terminal continuously monitoring the broadcast to obtain new positioning assistance data; at the same time avoiding the terminal obtaining the same positioning Additional overhead caused by auxiliary data.
  • the effective area and the effective time of the positioning assistance data broadcasted by the base station by the terminal include:
  • the terminal receives the SIB message of the LPP carrying the effective area and/or effective time and positioning assistance data broadcast by the base station; and/or
  • the terminal receives the RRC message carrying the effective area and/or effective time broadcast by the base station.
  • the above method provides a scheme for the terminal to receive the effective area and effective time broadcast by the base station through the SIB message and/or RRC message of the LPP, and ensures that the terminal accurately receives the effective area and effective time broadcast by the base station.
  • the terminal receives the SIB message of the LPP broadcasted by the base station, and the terminal determines that the positioning assistance data needs to be re-acquired according to the effective area and effective time, and then re-acquires the positioning assistance data, including:
  • the LPP module of the non-access layer NAS layer in the terminal starts the timer when it obtains the valid time. If it is determined that the terminal is not in the valid area before the timer expires, after determining that the positioning assistance data needs to be re-acquired according to the terminal's positioning service situation, Re-acquire positioning assistance data; or
  • the LPP module of the NAS layer in the terminal starts the timer when it obtains the valid time. If it is determined that the timer expires, it will reacquire the positioning assistance data after determining the need to reacquire the positioning assistance data according to the positioning service situation of the terminal;
  • the start duration of the timer is determined by the LPP module according to the effective time.
  • the LPP module of the NAS layer in the terminal determines whether it is necessary to reacquire the positioning assistance data according to the effective time, the effective area and the positioning service of the terminal in the SIB message of the LPP, so The terminal more accurately determines whether the positioning assistance data needs to be reacquired, avoiding resource waste caused by the terminal continuously monitoring the broadcast to obtain new positioning assistance data, and avoiding the additional overhead caused by the terminal obtaining the same positioning assistance data.
  • the terminal receives the RRC message broadcast by the base station, and the terminal determines whether to obtain new positioning assistance data according to the effective area and effective time, including:
  • the RRC layer in the terminal starts the timer when it obtains the valid time. If it is determined that the terminal is not in the valid area before the timer expires, it sends the information that the terminal exceeds the valid area to the LPP module of the NAS layer in the terminal, so that the LPP module can follow the terminal After confirming that the positioning assistance data needs to be re-acquired, the positioning assistance data should be re-acquired; or
  • the RRC layer in the terminal starts the timer when it obtains the valid time. If it is determined that the timer expires, it sends the timer expired information to the LPP module of the NAS layer in the terminal, so that the LPP module can determine the need according to the terminal's positioning service situation. After reacquiring the positioning assistance data, reacquire the positioning assistance data;
  • the start duration of the timer is determined by the RRC layer according to the effective time.
  • the RRC layer in the terminal can analyze the RRC message to determine the effective time and/or effective area carried in the RRC message. After determining that the valid time expires and/or the valid time expires, the invalid message and/or timeout message is sent to the LPP module in the NAS layer of the terminal, so that the LPP module in the NAS layer further determines whether or not according to the terminal's positioning service situation Need to reacquire the positioning assistance data, so that the terminal can more accurately determine whether it needs to reacquire the positioning assistance data, avoid the waste of resources caused by the terminal continuously monitoring the broadcast to obtain new positioning assistance data, and avoid the terminal obtaining the same positioning assistance data The additional cost caused.
  • the effective area of positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the effective time of positioning assistance data includes one or a combination of the following:
  • the length of the effective time period, the absolute time of the effective time, and the starting SFN number of the effective time is the length of the effective time period, the absolute time of the effective time, and the starting SFN number of the effective time.
  • an embodiment of the present invention provides a positioning server for broadcasting information, where the positioning server includes a processor, a memory, and a transceiver;
  • the processor is used to read the program in the memory and execute the following process:
  • the base station broadcasts the effective area and effective time, so that the terminal can obtain the positioning assistance data again after determining that it needs to reacquire the positioning assistance data according to the effective area and the effective time.
  • an embodiment of the present invention provides a base station for broadcasting information.
  • the base station includes a processor, a memory, and a transceiver;
  • the processor is used to read the program in the memory and execute the following process:
  • the effective area and effective time are broadcast to the terminal, so that the terminal reacquires the positioning assistance data after determining that it needs to reacquire the positioning assistance data according to the effective area and the effective time.
  • an embodiment of the present invention provides a terminal for broadcasting information, the terminal including: a processor, a memory, and a transceiver;
  • the processor is used to read the program in the memory and execute the following process:
  • an embodiment of the present invention provides a positioning server for broadcasting information, and the positioning server includes:
  • the first determining module is used to determine the effective area of the positioning assistance data and the effective time of the positioning assistance data;
  • the first broadcasting module is used for broadcasting the effective area and effective time through the base station, so that the terminal can obtain the positioning assistance data again after determining that it needs to re-acquire the positioning assistance data according to the effective area and the effective time.
  • an embodiment of the present invention provides a base station for broadcasting information, and the base station includes:
  • the first receiving module is configured to receive the effective area of the positioning assistance data and the effective time of the positioning assistance data sent by the positioning server;
  • the second broadcasting module is used to broadcast the effective area and effective time to the terminal, so that the terminal can obtain the positioning assistance data again after determining that it needs to re-acquire the positioning assistance data according to the effective area and the effective time.
  • the present invention provides a terminal for broadcasting information, and the terminal includes:
  • the second receiving module is used to receive the effective area of the positioning assistance data and the effective time of the positioning assistance data broadcast by the base station;
  • the second determining module re-acquires the positioning assistance data after determining that the positioning assistance data needs to be re-acquired according to the effective area and the effective time.
  • an embodiment of the present invention provides a computer storage medium with a computer program stored thereon, and when the program is executed by a processor, it implements any one of the above-mentioned solutions in the first aspect or any one of the above-mentioned second aspects , Or implement any of the above-mentioned third aspects.
  • Figure 1 is a schematic diagram of an application scenario for broadcasting information
  • FIG. 2 is a structural diagram of a system for broadcasting information provided by an embodiment of the present invention.
  • 3A is a flowchart of an overall method for playing information provided by an embodiment of the present invention.
  • FIG. 3B is a flowchart of another overall method for playing information according to an embodiment of the present invention.
  • FIG. 4 is a structural diagram of a first positioning server provided by an embodiment of the present invention.
  • Figure 5 is a structural diagram of a second positioning server provided by an embodiment of the present invention.
  • Figure 6 is a structural diagram of a first base station provided by an embodiment of the present invention.
  • FIG. 7 is a structural diagram of a second type of base station provided by an embodiment of the present invention.
  • Figure 8 is a structural diagram of a first terminal provided by an embodiment of the present invention.
  • FIG. 9 is a structural diagram of a second terminal provided by an embodiment of the present invention.
  • FIG. 10 is a flowchart of the first method for broadcasting information according to an embodiment of the present invention.
  • FIG. 11 is a flowchart of a second method for broadcasting information according to an embodiment of the present invention.
  • FIG. 12 is a flowchart of a third method for broadcasting information provided by an embodiment of the present invention.
  • Figure 1 shows the structure diagram of the application scenario of broadcasting information, specifically:
  • the positioning server When Long Term Evolution (LTE) broadcasts positioning assistance data: the positioning server generates the broadcast information of the positioning assistance data, and sends the broadcast information of the positioning assistance data to the base station through the LTE positioning protocol A (LPPa) protocol
  • LTPa LTE positioning protocol A
  • the base station broadcasts the positioning assistance data through broadcasting
  • the RRC of the terminal receives the positioning assistance data broadcast by the base station, and submits the received positioning assistance data to the LPP of the NAS layer for processing, and the RRC layer determines the type of positioning assistance data received , And pass the positioning assistance data to the NAS layer without knowing other information.
  • the positioning server is sending positioning assistance data to the base station, the base station stores the received positioning assistance data, and broadcasts the received positioning assistance data through system messages, and broadcasts positioning assistance data through system messages
  • the area ID indicates in which area the positioning assistance data is valid, but the effective area of the auxiliary data corresponding to the area ID is different from the actual effective area of the positioning assistance data, and the effective area of the auxiliary data corresponding to the area ID is smaller than the positioning assistance data
  • the effective area of the A-GNSS positioning assistance data is within a few hundred kilometers, and the effective area size of the assistance data corresponding to the area ID is quite different, and the update of the A-GNSS positioning assistance data is about
  • the terminal continuously monitors the broadcast to update the positioning assistance data, causing the terminal to consume a lot of power.
  • the present invention provides a method of broadcasting information for the terminal to continuously monitor and continuously broadcast to update the positioning assistance data to update the positioning assistance data, reduce the power consumption of the terminal, and improve the effectiveness of the positioning assistance data.
  • the positioning server of the present invention determines the effective area of the positioning assistance data and the effective time of the positioning assistance data, and sends the effective area of the positioning assistance data, the effective time of the positioning assistance data and the positioning assistance area to the base station, and The base station broadcasts the effective area of the positioning assistance data, the effective time of the positioning assistance data, and the positioning assistance data.
  • the terminal receives the positioning assistance data, receives the effective area of the positioning assistance data and the effective time of the positioning assistance data, and obtains the positioning according to the effective area of the positioning assistance data and the effective time of the positioning assistance data after determining the need to reacquire the positioning assistance data
  • the auxiliary data is triggered by the terminal to obtain new positioning assistance data, avoiding resource waste caused by continuously monitoring the broadcast to update the positioning assistance data, and saving power and storage resources.
  • the terminal is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air ( For example, airplanes, balloons, satellites, etc.).
  • the terminal may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal, an augmented reality (Augmented Reality, AR) terminal, an industrial control (Industrial Control)
  • a base station is a device that provides wireless communication functions for the terminal, including but not limited to: gNB in 5G, Radio Network Controller (RNC), Node B (NB), Base Station Controller (Base Station) Controller, BSC), base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home Evolved NodeB, or Home Node B, HNB), baseband unit (BaseBand Unit, BBU), transmission point (Transmitting and Receiving Point, TRP), Transmitting Point (TP), mobile switching center, etc.
  • the base station in the present disclosure may also be a device that provides wireless communication functions for terminals in other communication systems that may appear in the future.
  • FIG. 2 it is a structural diagram of a system for broadcasting information provided by an embodiment of the present invention.
  • the system includes: a positioning server 20, a base station 21, and a terminal 22, wherein:
  • the positioning server 20 is configured to determine the effective area of positioning assistance data and the effective time of positioning assistance data; broadcast the effective area and the effective time through the base station, so that the terminal is in accordance with the effective area and the effective time. After determining that the positioning assistance data needs to be reacquired, reacquire the positioning assistance data.
  • the base station 21 is configured to receive the effective area of the positioning assistance data and the effective time of the positioning assistance data sent by the positioning server; broadcast the effective area and the effective time to the terminal, so that the terminal can be based on the effective area and the effective time. After the valid time determines that the positioning assistance data needs to be reacquired, the positioning assistance data is reacquired.
  • the terminal 22 is used to receive the effective area of the positioning assistance data and the effective time of the positioning assistance data broadcasted by the base station; after determining that the positioning assistance data needs to be re-acquired according to the effective area and the effective time, re-acquire the positioning assistance data .
  • the positioning server broadcasts the effective area of the positioning assistance data and the effective time of the positioning assistance data to the terminal through the base station, and the terminal receives the effective area of the positioning assistance data broadcast by the base station and the effective time of the positioning assistance data according to the positioning assistance
  • the valid area of the data and the valid time of the positioning assistance data After determining that the positioning assistance data needs to be re-acquired, the positioning assistance data is re-acquired; the terminal triggers the re-acquisition of the positioning assistance data, instead of continuously monitoring the broadcast to obtain new positioning assistance data, saving Electricity; At the same time, each acquisition of new positioning assistance data is executed after the terminal determines that it needs to be acquired, so the positioning assistance data acquired each time is different, which avoids additional consumption of the terminal.
  • the positioning server determines the positioning assistance data to be broadcast, it determines the effective area of the positioning assistance data to be broadcast and the effective time of the positioning assistance data to be broadcast, so as to determine the location assistance data according to the effective area and effective time. Effectiveness.
  • the positioning server determines the effective area and positioning assistance of the positioning assistance data according to the data type and data source of the positioning assistance data to be broadcast. The effective time of the area.
  • the positioning assistance data is the general search information of A-GNSS
  • the effective area of the positioning assistance data is the visible area of the relevant satellite within the effective time, and the effective time can be set to infinite
  • the positioning assistance data is the difference correction information of A-GNSS. If the generation period of the difference number is 1 time per second, the valid time of the positioning assistance data is 1 second, and the effective area is the area where the relevant difference number can be used;
  • the positioning assistance data is the positioning assistance data of the positioning method (Observed Time Difference Of Arrival, OTDOA) that observes the time difference of arrival.
  • OTDOA Observed Time Difference Of Arrival
  • the effective time can be set to infinite, and the effective area is the current static cell.
  • the positioning server determines the effective area and effective time of the positioning assistance data according to the data type and data source of the positioning assistance data, it can be based on the data type, data source and effective area preset in the positioning server The corresponding relationship of the effective time is determined. After the positioning server determines the data source and data type of the positioning assistance data, the corresponding relationship is searched to determine the effective area of the positioning assistance data and the effective time of the positioning assistance data;
  • the effective time and effective area can also be determined based on the information provided by other servers that generate positioning assistance data.
  • the effective area of the positioning assistance data and the effective time of the positioning assistance data are sent to the base station, and the base station broadcasts.
  • the positioning server When the positioning server sends the effective area of the positioning assistance data and the effective time of the positioning assistance data to the base station, it can send it through the LPP SIB message and/or NRPPa message;
  • the base station when the base station receives the effective area of the positioning assistance data and the effective time of the positioning assistance data sent by the positioning server, it receives the SIB message and/or NRPPa message of the LPP;
  • the base station After the base station receives the effective area of the positioning assistance data and the effective time of the positioning assistance data, when it broadcasts the effective area of the positioning assistance data and the effective time of the positioning assistance data, it determines the location of the broadcast positioning assistance data according to the received message from the positioning server. Information about the effective area and the effective time of the positioning assistance data;
  • the base station If the base station receives the LPP SIB message sent by the positioning server, and the LPP SIB message carries the effective time of the positioning assistance data and the effective area of the positioning assistance data, the base station broadcasts the SIB message to the terminal; or
  • the base station If the base station receives the NRPPa message sent by the positioning server, and the NAPPa message carries the effective time of the positioning assistance data and the effective area of the positioning assistance data, the base station parses the NAPPa message to determine the effective time of the positioning assistance data and the effective area of the positioning assistance data. And carry the effective time of the positioning assistance data and the effective area of the positioning assistance data through the RRC message, and the base station broadcasts the RRC message to the terminal; or
  • the base station receives the LPP SIB message sent by the positioning server and the valid time of the positioning assistance data and the valid area of the positioning assistance data sent by the NRPPa message, the LPP SIB message carries the valid time of the positioning assistance data, and the NRPPa message carries If it is the effective area of the positioning assistance data, the base station broadcasts the SIB message and RRC message to the terminal, the SIB message carries the effective time, and the RRC message carries the effective area; or
  • the base station receives the LPP SIB message sent by the positioning server and the valid time of the positioning assistance data and the valid area of the positioning assistance data sent by the NRPPa message, the LPP SIB message carries the valid area of the positioning assistance data, and the NRPPa message carries Is the valid time of the positioning assistance data, the base station broadcasts the SIB message and the RRC message to the terminal, the SIB message carries the valid area, and the RRC message carries the valid time.
  • the terminal receives the message broadcast by the base station, and re-acquires the positioning assistance data after determining the need to obtain the positioning assistance data according to the effective time of the positioning assistance data and the effective area of the positioning assistance data carried in the broadcast message.
  • the terminal determines whether it needs to obtain the positioning assistance data according to the effective area of the positioning assistance data and the effective time of the positioning assistance data carried in the message;
  • the terminal determines whether the positioning assistance data needs to be re-acquired for the four situations corresponding to the above-mentioned message broadcast by the base station.
  • Case 1 The base station carries the effective area of the positioning assistance data and the effective time of the positioning assistance data through the LPP protocol.
  • the positioning server puts the effective area of the positioning assistance data, the effective time of the positioning assistance data, and the positioning assistance data in the SIB message content of the LPP, and sends them to the base station;
  • the base station After the base station receives the SIB message of the LPP carrying the effective area of the positioning assistance data, the effective time of the positioning assistance data, and the LPP of the positioning assistance data sent by the positioning server, it broadcasts the LPP SIB message to the terminal;
  • the RRC of the terminal After the RRC of the terminal receives the SIB message of the LPP broadcast by the base station, it forwards the SIB message of the LPP to the LPP module of the NAS layer in the terminal;
  • the LPP module of the NAS layer in the terminal saves the SIB message of the LPP and parses the SIB message of the LPP.
  • the LPP module of the NAS layer in the terminal parses the valid time of the positioning assistance data carried in the SIB message of the LPP, it starts the timer ; And set the timer duration according to the valid time of the positioning assistance data. For example, if the valid time of the positioning assistance data is 1 second, the timer duration can be set to 1 second.
  • the LPP module in the NAS layer of the terminal simultaneously monitors the time of positioning assistance data and the area where the terminal is located, to determine whether the time exceeds the timer duration corresponding to the valid time, and/or to determine whether the area where the terminal is located exceeds the coverage of the valid area, when it is determined If the time exceeds the timer duration corresponding to the valid time and/or the area exceeds the coverage of the valid area, it will be determined whether the positioning assistance data needs to be re-acquired according to the positioning service of the terminal. After determining the need to re-acquire the positioning assistance data, re-acquire the positioning assistance data.
  • the area where the terminal is located will be changed, taking the effective area of positioning assistance data as the cell list, and the area where the terminal is located as an example;
  • the LPP module of the NAS layer in the terminal monitors whether the cell where the terminal is located has changed. When the terminal changes cells each time, it is determined whether the changed cell is in the cell list corresponding to the effective area. If it is not in the cell list, it is determined to be out of the valid area. The LPP module of the NAS layer in the terminal will determine whether it needs to reacquire the positioning assistance data according to the positioning service situation of the terminal. After determining the need to reacquire the positioning assistance data, reacquire the positioning assistance Data; and/or
  • the LPP module in the NAS layer of the terminal does not exceed the effective area after the timer is started, but the timer expires, at this time, it will also determine whether the positioning assistance data needs to be re-acquired according to the positioning service situation of the terminal. After obtaining the positioning assistance data, obtain the positioning assistance data again.
  • the LPP module of the NAS layer in the terminal determines whether the positioning assistance data needs to be re-acquired according to the terminal's positioning service situation, if the positioning service is determined to be stopped, the terminal determines that it does not need to re-acquire the positioning assistance data;
  • the LPP module of the NAS layer in the terminal will notify the RRC layer in the terminal to reacquire the broadcast of positioning assistance data, or send a message requesting positioning assistance data to the positioning server.
  • FIG. 3A it is a flowchart of an overall method for broadcasting information provided by an embodiment of the present invention, including the following steps:
  • Step 3000 the positioning server determines to broadcast positioning assistance data
  • Step 3001 The positioning server determines the effective time of the positioning assistance data and the effective area of the positioning assistance data;
  • Step 3002 The positioning server sends the determined effective time and effective area to the base station through the SIB message of LPP;
  • Step 3003 The base station broadcasts the received LPP SIB message sent by the positioning server to the terminal;
  • Step 3004 The RRC layer of the terminal receives the LPP SIB message broadcast by the base station;
  • Step 3005 The RRC layer of the terminal forwards the SIB message of the LPP to the LPP module in the NAS layer of the terminal;
  • Step 3006 the LPP module in the NAS layer of the terminal parses the valid time and valid area in the SIB message of the LPP;
  • step 3007 the LPP module in the NAS layer of the terminal determines that the positioning assistance data needs to be re-acquired according to the valid time and the valid area, and then re-acquires the positioning assistance data.
  • Case 2 The base station carries the effective area of the positioning assistance data and the effective time of the positioning assistance data through the RRC protocol.
  • the positioning server sends the effective area of the positioning assistance data, the effective time of the positioning assistance data, and the positioning assistance data to the base station through the NRPPa message;
  • the base station After the base station receives the NRPPa message carrying the effective area of the positioning assistance data, the effective time of the positioning assistance data and the positioning assistance data sent by the positioning server, it analyzes the NRPPa message to determine the effective time, effective area and positioning assistance data, and determines the LPP positioning Broadcast messages, where the LPP positioning broadcast message carries positioning assistance data, and the parameters in the LPP positioning broadcast message and the RRC message carrying the effective area and effective time are broadcast to the base station through the RRC message;
  • the RRC layer of the terminal After the RRC layer of the terminal receives the RRC message broadcast by the base station, the RRC message carries the parameters in the RRC message including the effective area and effective time, and the positioning broadcast message of LPP. Therefore, the RRC layer of the terminal parses the RRC message to determine the RRC message And save the parameters in the NAS layer, and send the LPP positioning broadcast message to the LPP module of the NAS layer in the terminal;
  • the RRC layer in the terminal saves the parameters in the RRC message carrying the effective area and effective time in the RRC message, it analyzes the parameters in the RRC message to determine the effective time and effective area carried, and starts the timing after the effective time is analyzed And set the timer duration according to the parsed valid time. For example, if the valid time of the positioning assistance data is 1 second, the timer duration can be set to 1 second.
  • the RRC layer in the terminal simultaneously monitors the time of positioning assistance data and the area where the terminal is located to determine whether the time exceeds the timer duration corresponding to the valid time, and/or determines whether the area where the terminal is located exceeds the coverage of the valid area:
  • the timer expired message is reported to the LPP module in the NAS layer of the terminal, so that the LPP module in the NAS layer of the terminal determines whether it needs to be renewed according to the positioning service situation of the terminal.
  • the message that exceeds the coverage area of the effective area is reported to the LPP module of the NAS layer of the terminal, so that the LPP module in the NAS layer of the terminal determines whether it is necessary according to the location service situation of the terminal Reacquire the positioning assistance data, and after determining that the positioning assistance data needs to be reacquired, reacquire the positioning assistance data.
  • the area where the terminal is located will be changed, taking the effective area of positioning assistance data as the cell list, and the area where the terminal is located as an example;
  • the RRC layer in the terminal monitors whether the cell where the terminal is located has changed. Each time the terminal changes cells, it determines whether the changed cell is in the cell list corresponding to the effective area. If the changed cell is not in the cell list If it exceeds the effective area, it will report the message beyond the effective area to the LPP module of the NAS layer of the terminal; and/or
  • the RRC layer in the terminal determines that the area where the terminal is located does not exceed the effective area, but the timer expires, and reports the timer expired message to the LPP module of the NAS layer of the terminal.
  • the LPP module of the NAS layer in the terminal determines whether the positioning assistance data needs to be re-acquired according to the terminal's positioning service situation, if the positioning service is determined to be stopped, the terminal determines that it does not need to re-acquire the positioning assistance data;
  • the LPP module of the NAS layer in the terminal will notify the RRC layer in the terminal to reacquire the broadcast of positioning assistance data, or send a message requesting positioning assistance data to the positioning server.
  • FIG. 3B it is a flowchart of another overall method for broadcasting information provided by the implementation of the present invention, including the following steps:
  • Step 3010 The positioning server determines to broadcast positioning assistance data
  • Step 3011 The positioning server determines the effective time of the positioning assistance data and the effective area of the positioning assistance data
  • Step 3012 The positioning server sends the determined effective time and effective area to the base station through an NRPPa message
  • Step 3013 The base station receives the NRPPa message sent by the positioning server, and determines the effective time and effective area in the NRPPa message;
  • Step 3014 the base station carries the effective time and effective area in the parameters of the RRC message, and broadcasts the RRC message to the terminal;
  • Step 3015 The RRC layer of the terminal receives the RRC message broadcast by the base station;
  • Step 3016 The RRC layer of the terminal saves the parameters of the effective time and the effective area carried in the RRC message
  • Step 3017 The RRC layer of the terminal parses the effective time and effective area in the RRC message
  • Step 3018 After determining that the RRC layer of the terminal has exceeded the valid area and/or timed out, it reports the message of the out of valid area and/or timeout to the LPP module of the NAS layer of the terminal;
  • Step 3019 After receiving the message reported by the RRC, the LPP module of the NAS layer of the terminal determines that the positioning assistance data needs to be re-acquired, and then re-acquires the positioning assistance data.
  • the base station carries the effective area of the positioning assistance data through the RRC protocol, and the effective time for the base station to carry the positioning assistance data through the LPP protocol.
  • the positioning server sends the effective area of the positioning assistance data to the base station through the NRPPa message, and the effective time of the positioning assistance data and the positioning assistance data are placed in the SIB message content of the LPP and sent to the base station.
  • the base station receives the NRPPa message carrying the effective area of the positioning assistance data from the positioning server, and the SIB message carrying the valid time of the positioning assistance data and the LPP of the positioning assistance data;
  • the base station broadcasts the effective area of the positioning assistance data in the NRPPa message to the terminal through the parameters in the RRC message, that is, the parameters in the RRC message carry the effective area of the positioning assistance data, and will carry the effective time and positioning assistance of the positioning assistance data.
  • the LPP SIB message of the data is sent to the terminal.
  • the RRC of the terminal After the RRC of the terminal receives the SIB message of the LPP broadcast by the base station, it forwards the SIB message of the LPP to the LPP module of the NAS layer in the terminal, and the RRC of the terminal retains the parameters in the RRC message after receiving the RRC message;
  • the RRC layer of the terminal judges whether the area where the terminal is located is a valid area, and the LPP module in the NAS layer of the terminal determines whether it has timed out;
  • the RRC layer of the terminal determines that the terminal is out of the valid area, it reports the information that the terminal is out of the valid area to the LPP module in the NAS layer of the terminal, and the LPP module in the NAS layer of the terminal determines whether it needs to be based on the terminal's positioning service.
  • Re-acquire positioning assistance data after determining that the positioning assistance data needs to be re-acquired, re-acquire positioning assistance data;
  • the LPP module in the NAS layer of the terminal determines whether the positioning assistance data needs to be reacquired according to the positioning service situation of the terminal. After determining that the positioning assistance data needs to be reacquired, Re-acquire positioning assistance data.
  • the LPP module of the NAS layer in the terminal determines whether the positioning assistance data needs to be re-acquired according to the terminal's positioning service situation, if the positioning service is determined to be stopped, the terminal determines that it does not need to re-acquire the positioning assistance data;
  • the LPP module of the NAS layer in the terminal will notify the RRC layer in the terminal to reacquire the broadcast of positioning assistance data, or send a message requesting positioning assistance data to the positioning server.
  • the base station carries the effective time of positioning assistance data through the RRC protocol, and the effective area of the base station carrying positioning assistance data through the LPP protocol.
  • the positioning server sends the effective time of the positioning assistance data to the base station through the NRPPa message, and the effective area of the positioning assistance data and the positioning assistance data are placed in the SIB message content of the LPP and sent to the base station.
  • the base station receives the NRPPa message carrying the effective time of the positioning assistance data and the SIB message carrying the effective area of the positioning assistance data and the LPP of the positioning assistance data sent by the positioning server;
  • the base station broadcasts the effective time of the positioning assistance data in the NRPPa message to the terminal through the parameters in the RRC message, that is, the parameters in the RRC message carry the effective time of the positioning assistance data, and will carry the effective area and positioning assistance of the positioning assistance data.
  • the LPP SIB message of the data is sent to the terminal.
  • the RRC of the terminal After the RRC of the terminal receives the SIB message of the LPP broadcast by the base station, it forwards the SIB message of the LPP to the LPP module of the NAS layer in the terminal, and the RRC of the terminal retains the parameters in the RRC message after receiving the RRC message;
  • the RRC layer of the terminal determines whether it is timed out, and the LPP module in the NAS layer of the terminal determines whether the area where the terminal is located is a valid area;
  • the RRC layer of the terminal determines the timeout
  • the timeout information is reported to the LPP module in the NAS layer of the terminal, and the LPP module in the NAS layer of the terminal determines whether it needs to reacquire the positioning assistance data according to the positioning service situation of the terminal. After confirming the need to reacquire positioning assistance data, reacquire positioning assistance data;
  • the LPP module in the NAS layer of the terminal determines whether the positioning assistance data needs to be re-acquired according to the positioning service situation of the terminal. After positioning assistance data, reacquire positioning assistance data.
  • the LPP module of the NAS layer in the terminal determines whether the positioning assistance data needs to be re-acquired according to the terminal's positioning service situation, if the positioning service is determined to be stopped, the terminal determines that it does not need to re-acquire the positioning assistance data;
  • the LPP module of the NAS layer in the terminal will notify the RRC layer in the terminal to reacquire the broadcast of positioning assistance data, or send a message requesting positioning assistance data to the positioning server.
  • the effective area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list;
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time.
  • the positioning server includes a processor 400, a memory 401, and a transceiver 402.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 401 can store data used by the processor 400 when performing operations.
  • the transceiver 402 is used to receive and transmit data under the control of the processor 400.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 400 and various circuits of the memory represented by the memory 401 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 401 can store data used by the processor 400 when performing operations.
  • the process disclosed in the embodiment of the present invention may be applied to the processor 400 or implemented by the processor 400.
  • each step of the signal processing flow can be completed by hardware integrated logic circuits in the processor 400 or instructions in the form of software.
  • the processor 400 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the embodiments of the present invention The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 401, and the processor 400 reads the information in the memory 401 and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 400 is configured to read the program in the memory 401 and execute the following process:
  • the effective area and the effective time are broadcast by the base station, so that the terminal obtains the positioning assistance data again after determining that the positioning assistance data needs to be re-acquired according to the effective area and the effective time.
  • the processor 400 is specifically configured to:
  • the processor 400 is specifically configured to:
  • the effective area and/or the effective time are sent to the base station through an NRPPa message, so that the base station broadcasts the effective area and/or the effective time.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time.
  • the first location server for broadcasting information provided by the embodiment of the present invention is based on the same concept as the method for broadcasting information in the foregoing embodiment of the present invention. It is applied to the various implementation manners provided in the foregoing embodiment and can be applied to this embodiment. I will not repeat it here.
  • FIG. 5 it is a structural diagram of a second type of positioning server for broadcasting information provided by an embodiment of the present invention.
  • the positioning server includes: a first determining module 500 and a first broadcasting module 501.
  • the first determining module 500 is configured to determine the valid area of the positioning assistance data and the valid time of the positioning assistance data;
  • the first broadcasting module 501 is configured to broadcast the effective area and the effective time through the base station, so that the terminal can obtain positioning assistance data again after determining that the positioning assistance data needs to be reacquired according to the effective area and the effective time. data.
  • the first determining module 500 is specifically configured to:
  • the first broadcasting module 501 is specifically configured to:
  • the effective area and/or the effective time are sent to the base station through an NRPPa message, so that the base station broadcasts the effective area and/or the effective time.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time.
  • the second location server for broadcasting information provided by the embodiment of the present invention is based on the same concept as the method for broadcasting information in the foregoing embodiment of the present invention. It is applied to the various implementation manners provided in the foregoing embodiment and can be applied to this embodiment. I will not repeat it here.
  • FIG. 6 it is a structural diagram of a first information broadcasting base station provided by an embodiment of the present invention.
  • the base station includes a processor 600, a memory 601, and a transceiver 602.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 601 can store data used by the processor 600 when performing operations.
  • the transceiver 602 is used to receive and transmit data under the control of the processor 600.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 600 and various circuits of the memory represented by the memory 601 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 601 can store data used by the processor 600 when performing operations.
  • the process disclosed in the embodiment of the present invention may be applied to the processor 600 or implemented by the processor 600.
  • each step of the signal processing flow can be completed by hardware integrated logic circuits in the processor 600 or instructions in the form of software.
  • the processor 600 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the embodiments of the present invention The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention can be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 601, and the processor 600 reads the information in the memory 601 and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 600 is configured to read a program in the memory 601 and execute the following process:
  • the terminal Broadcast the effective area and the effective time to the terminal, so that the terminal re-acquires the positioning assistance data after determining that the positioning assistance data needs to be re-acquired according to the effective area and the effective time.
  • processor 600 is specifically configured to:
  • processor 600 is specifically configured to:
  • the SIB message of the LPP sent by the positioning server If the SIB message of the LPP sent by the positioning server is received, the SIB message of the LPP carrying the valid area and the valid time is broadcast to the terminal.
  • processor 600 is specifically configured to:
  • the valid area and the valid time in the NRPPa message are broadcast to the terminal through an RRC message.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the starting SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the starting SFN number of the valid time.
  • the first information-broadcasting base station provided by the embodiment of the present invention is based on the same concept as the information-broadcasting method of the foregoing embodiment of the present invention. It is applied to the various implementation modes provided in the foregoing embodiment and can be applied to this embodiment. , I will not repeat it here.
  • FIG. 7 it is a structural diagram of a second type of information broadcasting base station provided by an embodiment of the present invention.
  • the base station includes: a first receiving module 700 and a second broadcasting module 701;
  • the first receiving module 700 is configured to receive the effective area of the positioning assistance data and the effective time of the positioning assistance data sent by the positioning server;
  • the second broadcasting module 701 is configured to broadcast the effective area and the effective time to the terminal, so that the terminal can obtain positioning assistance data again after determining that it needs to re-acquire positioning assistance data according to the effective area and the effective time. supplementary data.
  • the first receiving module 700 is specifically configured to:
  • the second broadcast module 701 is specifically configured to:
  • the SIB message of the LPP sent by the positioning server If the SIB message of the LPP sent by the positioning server is received, the SIB message of the LPP carrying the valid area and the valid time is broadcast to the terminal.
  • the second broadcast module 701 is specifically configured to:
  • the effective area and the effective time in the NRPPa message are broadcast to the terminal through a radio resource control RRC message.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the starting SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the starting SFN number of the valid time.
  • the second information-broadcasting base station provided in the embodiment of the present invention is based on the same concept as the information-broadcasting method in the foregoing embodiment of the present invention. It is applied to the various implementation manners provided in the foregoing embodiment and can be applied to this embodiment. , I will not repeat it here.
  • FIG. 8 it is a structural diagram of a terminal for broadcasting information provided by an embodiment of the present invention.
  • the terminal includes a processor 800, a memory 801, and a transceiver 802.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 801 can store data used by the processor 800 when performing operations.
  • the transceiver 802 is used to receive and send data under the control of the processor 800.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 800 and various circuits of the memory represented by the memory 801 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 801 can store data used by the processor 800 when performing operations.
  • the process disclosed in the embodiment of the present invention may be applied to the processor 800 or implemented by the processor 800.
  • each step of the signal processing flow can be completed by hardware integrated logic circuits in the processor 800 or instructions in the form of software.
  • the processor 800 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the embodiments of the present invention The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 801, and the processor 800 reads the information in the memory 801 and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 800 is configured to read the program in the memory 801 and execute the following process:
  • the positioning assistance data After determining that the positioning assistance data needs to be re-acquired according to the valid area and the valid time, the positioning assistance data is re-acquired.
  • processor 800 is specifically configured to:
  • processor 800 is specifically configured to:
  • the timer is started when the valid time is acquired through the LPP module of the NAS layer. If it is determined that the terminal is not in the valid area before the timer expires, it is determined that the location needs to be re-acquired according to the location service situation of the terminal After the auxiliary data, re-acquire the positioning auxiliary data; or
  • the timer is started when the valid time is acquired through the LPP module of the NAS layer, and if it is determined that the timer expires, the positioning assistance data is re-acquired after it is determined that the positioning assistance data needs to be reacquired according to the positioning service situation of the terminal;
  • the start duration of the timer is determined by the LPP module according to the effective time.
  • processor 800 is specifically configured to:
  • a timer is started when the valid time is acquired through the RRC layer, and if it is determined that the terminal is not in the valid area before the timer expires, the terminal is sent to the LPP module of the NAS layer in the terminal Information beyond the effective area, so that the LPP module reacquires the location assistance data after determining that it needs to reacquire the location assistance data according to the location service situation of the terminal; or
  • the timer is started when the valid time is acquired through the RRC layer, and if it is determined that the timer has expired, the timer expires information is sent to the LPP module of the NAS layer in the terminal, so that the LPP
  • the module determines that the positioning assistance data needs to be re-acquired according to the positioning service situation of the terminal, and then re-acquires the positioning assistance data;
  • the start duration of the timer is determined by the RRC layer according to the effective time.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time.
  • the first information-broadcasting terminal provided by the embodiment of the present invention is based on the same concept as the information-broadcasting method of the foregoing embodiment of the present invention. It is applied to the various implementation modes provided in the foregoing embodiment and can be applied to this embodiment. , I will not repeat it here.
  • FIG. 9 it is a structural diagram of a second type of terminal provided by an embodiment of the present invention.
  • the terminal includes: a second receiving module 900 and a second determining module 901;
  • the second receiving module 900 is configured to receive the effective area of the positioning assistance data and the effective time of the positioning assistance data broadcast by the base station;
  • the second determining module 901 is configured to re-acquire the positioning assistance data after determining that the positioning assistance data needs to be re-acquired according to the valid area and the valid time.
  • the second receiving module 900 is specifically configured to:
  • the second determining module 901 is specifically configured to:
  • the timer is started when the valid time is acquired through the LPP module of the NAS layer. If it is determined that the terminal is not in the valid area before the timer expires, it is determined that the location needs to be re-acquired according to the location service situation of the terminal After the auxiliary data, re-acquire the positioning auxiliary data; or
  • the timer is started when the valid time is acquired through the LPP module of the NAS layer, and if it is determined that the timer expires, the positioning assistance data is reacquired after determining the need to reacquire the positioning assistance data according to the positioning service situation of the terminal;
  • the start duration of the timer is determined by the LPP module according to the effective time.
  • the second determining module 901 is specifically configured to:
  • a timer is started when the valid time is acquired through the RRC layer, and if it is determined that the terminal is not in the valid area before the timer expires, the terminal is sent to the LPP module of the NAS layer in the terminal Information beyond the effective area, so that the LPP module reacquires the location assistance data after determining that it needs to reacquire the location assistance data according to the location service situation of the terminal; or
  • the timer is started when the valid time is acquired through the RRC layer, and if it is determined that the timer has expired, the timer expires information is sent to the LPP module of the NAS layer in the terminal, so that the LPP
  • the module determines that the positioning assistance data needs to be re-acquired according to the positioning service situation of the terminal, and then re-acquires the positioning assistance data;
  • the start duration of the timer is determined by the RRC layer according to the effective time.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time.
  • the second information-broadcasting terminal provided by the embodiment of the present invention is based on the same concept as the information-broadcasting method of the foregoing embodiment of the present invention. It is applied to the various implementation manners provided in the foregoing embodiment and can be applied to this embodiment. , I will not repeat it here.
  • the embodiment of the present invention provides a readable storage medium, the readable storage medium is a non-volatile storage medium, the readable storage medium is a non-volatile readable storage medium, and includes program code, when the program code When running on a computing device, the program code is used to make the computing device execute the above-mentioned positioning server to broadcast information, or the above-mentioned base station to broadcast information, or the above-mentioned terminal to broadcast information.
  • the embodiment of the present invention provides a computer program product containing instructions, which when running on a computer, causes the computing device to execute the above-mentioned terminal for information transmission, and causes the computing device to execute the above-mentioned positioning server to broadcast information
  • the embodiment of the present invention also provides a method for broadcasting information. Because the device corresponding to this method is the positioning server in the broadcasting information system of the embodiment of the present invention, and the principle of the method to solve the problem is similar to the positioning server Similar, so the implementation of this method can refer to the implementation of the system, and the repetition will not be repeated.
  • FIG. 10 it is a flowchart of the first method for broadcasting information provided by an embodiment of the present invention, which includes the following steps:
  • Step 1000 The positioning server determines the effective area of the positioning assistance data and the effective time of the positioning assistance data
  • Step 1001 The positioning server broadcasts the effective area and the effective time through a base station, so that the terminal reacquires the positioning assistance data after determining that the positioning assistance data needs to be reacquired according to the effective area and the effective time.
  • the positioning server determining the valid area of the positioning assistance data and the valid time of the positioning assistance data includes:
  • the positioning server determines the effective area of the positioning assistance data and the effective time of the positioning assistance data according to the data type and data source of the positioning assistance data.
  • the broadcasting of the effective area and the effective time by the positioning server through the base station includes:
  • the positioning server sends the system message broadcast SIB message of the effective area and/or the effective time carried in the Long Term Evolution LTE positioning protocol LPP to the base station, so that the base station broadcasts the SIB message; and/or
  • the positioning server sends the effective area and/or the effective time to the base station through an NRPPa message, so that the base station broadcasts the effective area and/or the effective time.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell, cell list, tracking area TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, radio access network notification area RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the SFN number of the starting system frame number of the valid time are the length of the valid time period, the absolute time of the valid time, and the SFN number of the starting system frame number of the valid time.
  • the embodiment of the present invention also provides a method for broadcasting information. Because the device corresponding to the method is the base station in the information broadcasting system of the embodiment of the present invention, and the principle of the method for solving the problem is similar to that of the base station, Therefore, the implementation of this method can refer to the implementation of the system, and the repetition will not be repeated.
  • FIG. 11 it is a flowchart of the second method for broadcasting information provided by an embodiment of the present invention, and includes the following steps:
  • Step 1100 The base station receives the effective area of the positioning assistance data and the effective time of the positioning assistance data sent by the positioning server.
  • Step 1101 The base station broadcasts the effective area and the effective time to the terminal, so that the terminal re-acquires the positioning assistance data after determining that it needs to re-acquire the positioning assistance data according to the effective area and the effective time.
  • the effective area of the positioning assistance data and the effective time of the positioning assistance data received by the base station from the positioning server include:
  • the base station receives the SIB message carrying the effective area and/or the effective time of the LPP sent by the positioning server; and/or
  • the base station receives the NRPPa message carrying the effective area and/or the effective time sent by the positioning server.
  • the base station broadcasting the effective area and the effective time to the terminal includes:
  • the base station broadcasts the SIB message of the LPP carrying the effective area and the effective time to the terminal.
  • the base station broadcasting the effective area and the effective time to the terminal includes:
  • the base station broadcasts the effective area and the effective time in the NRPPa message to the terminal through a radio resource control RRC message.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time.
  • the embodiment of the present invention also provides a method for broadcasting information. Because the device corresponding to the method is a terminal in the broadcasting information system of the embodiment of the present invention, and the principle of the method for solving the problem is similar to that of the terminal, Therefore, the implementation of this method can refer to the implementation of the system, and the repetition will not be repeated.
  • FIG. 12 it is a flowchart of a third method for broadcasting information provided by an embodiment of the present invention, which includes the following steps:
  • Step 1200 The terminal receives the effective area of the positioning assistance data and the effective time of the positioning assistance data broadcast by the base station;
  • Step 1201 The terminal re-acquires the positioning assistance data after determining that the positioning assistance data needs to be re-acquired according to the valid area and the valid time.
  • the valid area and valid time of the positioning assistance data broadcast by the base station by the terminal includes:
  • the terminal receives the SIB message of the LPP carrying the effective area and/or the effective time and positioning assistance data broadcast by the base station; and/or
  • the terminal receives the RRC message that carries the effective area and/or the effective time broadcast by the base station.
  • the terminal receives the SIB message of the LPP broadcast by the base station, and the terminal reacquires the positioning assistance data after determining that it needs to reacquire the positioning assistance data according to the valid area and the valid time, including :
  • the LPP module of the non-access stratum NAS layer in the terminal starts a timer when it obtains the valid time, and if it is determined that the terminal is not in the valid area before the timer expires, then according to the location of the terminal After the business situation determines that the positioning assistance data needs to be re-acquired, re-acquire the positioning assistance data; or
  • the LPP module of the NAS layer in the terminal starts a timer when it obtains the valid time. If it is determined that the timer has expired, it re-acquires the positioning assistance data after determining the need to reacquire the positioning assistance data according to the positioning service situation of the terminal Positioning assistance data;
  • the start duration of the timer is determined by the LPP module according to the effective time.
  • the terminal receives the RRC message broadcast by the base station, and after the terminal determines that the positioning assistance data needs to be re-acquired according to the valid area and the valid time, reacquiring the positioning assistance data includes:
  • the RRC layer in the terminal When the RRC layer in the terminal obtains the valid time, it starts a timer, and if it is determined that the terminal is not in the valid area before the timer expires, it will report to the LPP module of the NAS layer in the terminal. Sending the information that the terminal exceeds the effective area, so that the LPP module determines that it needs to re-acquire the positioning assistance data according to the positioning service situation of the terminal, and then re-acquire the positioning assistance data; or
  • the RRC layer in the terminal starts a timer when it obtains the valid time, and if it is determined that the timer has expired, it sends the timer expired information to the LPP module of the NAS layer in the terminal to Enabling the LPP module to re-acquire the positioning assistance data after determining that the positioning assistance data needs to be re-acquired according to the positioning service condition of the terminal;
  • the start duration of the timer is determined by the RRC layer according to the effective time.
  • the valid area of the positioning assistance data includes one or a combination of the following:
  • Cell Cell list, TA area, TA area list, predefined geographic area, identification information corresponding to the predefined geographic area, RNA area, RNA area list.
  • the valid time of the positioning assistance data includes one or a combination of the following:
  • the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time is the length of the valid time period, the absolute time of the valid time, and the start SFN number of the valid time.
  • the present disclosure can also be implemented by hardware and/or software (including firmware, resident software, microcode, etc.).
  • the present disclosure may take the form of a computer program product on a computer-usable or computer-readable storage medium, which has a computer-usable or computer-readable program code implemented in the medium to be used by an instruction execution system or Used in conjunction with the instruction execution system.
  • a computer-usable or computer-readable medium can be any medium that can contain, store, communicate, transmit, or transfer a program for use by an instruction execution system, apparatus, or device, or in combination with an instruction execution system, Device or equipment use.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

L'invention concerne un procédé et un appareil de diffusion d'informations, résolvant le problème des techniques antérieures dans lequel une surveillance constante de la diffusion d'un terminal pour acquérir des données de positionnement auxiliaire entraîne une consommation d'énergie de celui-ci. Le procédé de la présente invention comprend les étapes suivantes : un serveur de positionnement détermine une région de validité de données de positionnement auxiliaire et un temps de validité de celles-ci ; le serveur de positionnement diffuse, au moyen d'une station de base, la région de validité et le temps de validité, de telle sorte qu'un terminal réacquiert les données de positionnement auxiliaire après avoir déterminé qu'une réacquisition des données de positionnement auxiliaire est nécessaire en fonction de la région de validité et du temps de validité. Le serveur de positionnement diffuse, au moyen de la station de base, la région de validité des données de positionnement auxiliaire et leur temps de validité vers le terminal ; le terminal détermine, en fonction de la région de validité et du temps de validité, s'il faut réacquérir les données de positionnement auxiliaire ; et l'acquisition de nouvelles données de positionnement auxiliaire est déclenchée par le terminal en fonction de la région de validité et du temps de validité, ce qui permet d'éviter le problème d'une consommation d'énergie excessive provoquée par un terminal qui doit surveiller constamment les diffusions pour acquérir des données actualisées de positionnement auxiliaire.
PCT/CN2020/107096 2019-08-12 2020-08-05 Procédé et appareil de diffusion d'informations WO2021027650A1 (fr)

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