CN101651506A - Method for sending and receiving main notification message of earthquake tsunami warning system - Google Patents
Method for sending and receiving main notification message of earthquake tsunami warning system Download PDFInfo
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- CN101651506A CN101651506A CN200810146247A CN200810146247A CN101651506A CN 101651506 A CN101651506 A CN 101651506A CN 200810146247 A CN200810146247 A CN 200810146247A CN 200810146247 A CN200810146247 A CN 200810146247A CN 101651506 A CN101651506 A CN 101651506A
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Abstract
The invention discloses a method for sending a main notification message of an earthquake tsunami warning system ETWS, which comprises that: a base station sends a paging message to a terminal in a current system message modifying cycle after receiving the main notification message of the ETWS, wherein the paging message carries a basic information part of the main notification message of the ETWS; and the base station broadcasts the system message containing a safety information part of the main notification message of the ETWS in a next system message modifying cycle. The invention also discloses a method for receiving the main notification message of the ETWS, which comprises that: the terminal receives the paging message, reads the basic information part of the main notification message of the ETWS carried by the paging message; and the base station receives and reads the system message carrying the safety information part of the main notification message of the ETWS in the next system message modifying cycle, and verifies whether the basic information is true or not. The invention meets a delay requirement on the main notification message of the ETWS reaching the terminal within 4 seconds by only modifying the base station and the terminal slightly.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of sending and receiving method of seismic sea wave early warning system main notification message.
Background technology
In order to respond actively natural calamity such as seismic sea wave, be necessary to set up a cover ETWS (Earthquakeand Tsunami Waming System, seismic sea wave early warning system).By using this system, can when taking place, the seismic sea wave natural calamity send the relevant information of disaster to the user timely, thus the influence that alleviates the seismic sea wave natural calamity to the mankind.
Fig. 1 is a PLMN (public land mobile network, public land mobile network) operator provides seismic sea wave early warning service to the user by the ETWS system a network structure.After the disaster incident was about to take place or takes place, government or other mechanism were to PLMN operator issue alert notification, and PLMN operator sends alert notification message by the ETWS system that empty frame comprised to users.Different according to urgency level and purpose, alert notification message can be divided into two types: first type notification message is referred to as main notification message (Primary notification), most important disaster information (as: earthquake or tsunami are about to take place) is arranged in this message, require system in 4 seconds, this message to be passed to the user; Second type notification message is referred to as less important notification message (SecondaryNotification), this message comprises the supplementary relevant with disaster (as: can where obtain assistance etc.), requires system by 30 seconds message to be passed to the user at 10 seconds.Main notification message is made up of essential information and security information two parts, and essential information has comprised the early warning type, and contents such as prewarning area have the length of 5 bytes; Security information partly is for essential information provides digital signature and timestamp, nearly 50 byte longs.At LTE (Long Term Evolution, Long Term Evolution) in the system, the ETWS system can adopt CBS (Cell Broadcast Service, cell broadcaste service) core net realizes, its network element composition and interface are as shown in Figure 2, CBC (Cell Broadcast Center, Cell Broadcast Short Message CBCH center) mails to each terminal by EPS (Evolution Packet System, the grouping system of evolution) with data.Interface (interface between base station and the terminal) aloft, general system message update process is, when change takes place in system message, the cycle is revised in next system message in the base station, initiate paging by paging channel to the user, at PDSCH (Physical Downlink Share Channel, Physical Downlink Shared Channel) goes up by SIBl (System Information Block1, system information block 1) amended SIB of indication and SI (System Information, system information) mapping relations between and the dispatching cycle of SI, go up the employed temporal frequency resource of indication SI at grouping Dedicated Control Channel PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel).In the ETWS system, can take special IMSI (International Mobile Subscriber Identifier, international mobile subscriber identity), i.e. ETWS IMSI to the paging of terminal.Because the system message cycle of revising generally can surpass 5 seconds time, so call terminal just might be after 5 seconds.If adopt general system message update process, the ETWS main notification message is passed to terminal, can not guarantee to satisfy the delay requirement of incoming terminal in the main notification message 4 seconds.
Present a solution is directly to adopt the beep-page message mode to carry the essential information part and the security information part of main notification message.But because the content of main notification message is bigger, so adopts this mode can cause the segmentation of main notification message and, system is revised many problems such as modification of existing beep-page message structure.
Summary of the invention
The technical problem to be solved in the present invention is the sending and receiving method that proposes a kind of seismic sea wave early warning system main notification message, overcome that existing method causes the segmentation of main notification message and to the problem of the modification of existing beep-page message structure, and can satisfy the requirement of earthquake tsunami warning system main notification message incoming terminal in 4 seconds.
In order to solve the problems of the technologies described above, the invention provides a kind of sending method of seismic sea wave early warning system ETWS main notification message, the base station is after receiving the ETWS main notification message, in the current system message modification cycle, send beep-page message to terminal, carry the essential information part of ETWS main notification message in the described beep-page message; The cycle is revised in the next system message of receiving the ETWS main notification message in the base station, and broadcast packet contains the system message of ETWS main notification message security information part.
Further, after the ETWS main notification message is received in the base station, send beep-page message to terminal opportunity at paging terminal immediately.
Further, the time that the base station sends described beep-page message continues a system message modification cycle at least, and the base station was determined by the core-network side network element the paging concluding time of terminal.
Further, the international mobile subscriber identity IMSI that issues in the beep-page message of terminal is ETWSIMSI, and its mobile communication national code MCC is 901, and Mobile Network Code MNC is 08.
Further, send beep-page message, revise cycle n+1 broadcasting in system message and carry the system information block SIB of ETWS main notification message security information part if cycle n is revised in system message in the base station.
Further, the cycle is revised in the next system message of receiving the ETWS main notification message in the base station, begins to increase in the system message SIB that carries the ETWS main notification message among the system information block 1SIB1 to the map information and the dispatching cycle of system information SI mapping; And when arrive in described dispatching cycle, indicate the temporal frequency position of the SI of described mapping in physical downlink control channel PDCCH, and on Physical Downlink Shared Channel PDSCH, broadcast the system message that comprises described SI.
In order to solve the problems of the technologies described above, the present invention also provides a kind of method of reseptance of seismic sea wave early warning system main notification message, and terminal paging receiving message reads the ETWS main notification message essential information part of carrying in its beep-page message; Terminal receives and reads the system message of carrying ETWS main notification message security information part in the next system information modification cycle, and whether the checking essential information is true.
Further, if terminal receives a plurality of described beep-page messages, then ignore except that the beep-page message first, described a plurality of beep-page messages are a system message in dispatching cycle, or cross over continuous system message dispatching cycle.
Further, terminal paging receiving message if the beep-page message IMSI that receives is ETWS IMSI, determines that this paging is the ETWS paging, then reads the ETWS main notification message essential information part of carrying in its beep-page message.
Further, terminal shows ETWS main notification message essential information partial content after reading the ETWS main notification message essential information part of carrying in the described beep-page message immediately on terminal interface.
Further, terminal is in the next system information modification cycle that receives described beep-page message, receives and read the SIB that carries the ETWS main notification message among the SIB1 to the map information and the dispatching cycle of SI mapping; By monitoring PDCCH information, determine the temporal frequency position of the SI of described mapping, receive and read ETWS main notification message security information part by PDSCH.
By technical scheme provided by the invention, only minor modifications is carried out in base station and terminal, realize the delay requirement of the main message informing of ETWS incoming terminal in 4 seconds.
Description of drawings
Fig. 1 is a PLMN operator provides seismic sea wave early warning service to the user by the ETWS system a schematic network structure;
Fig. 2 is the schematic diagram of ETWS system network element composition and interface;
Fig. 3 is that the ETWS main notification message realizes schematic diagram in the application example of the present invention;
Fig. 4 is ETWS main notification message base station side realization flow figure in the application example of the present invention;
Fig. 5 is ETWS main notification message end side realization flow figure in the application example of the present invention.
Embodiment
The present invention proposes interface aloft, the basic messae of main notification message partly adopts beep-page message notice terminal, security information partly adopts system message to broadcast to terminal, simultaneously in order to satisfy 4 seconds delay requirement, optimization system message modification paging flow process, revise cycle call terminal immediately in current system message, and does not wait by the time the next system message modification cycle.
Core concept of the present invention is: the base station is after receiving main notification message, the terminal that paging immediately is all, carry the essential information part of ETWS main notification message in the beep-page message, terminal is obtained the essential information of ETWS main notification message after receiving the ETWS paging.
Adopt this mode, can satisfy 4 seconds delay requirement, do not need simultaneously the scheduling transmission of system message is made amendment.Because the security information of ETWS main notification message partly is carried in the system message, so the ETWS main notification message essential information that terminal was obtained in 4 seconds at first is not necessarily true, wait until that next system information modification cycle terminal reads after the security information part among the ETWS main notification message SIB, could determine whether the ETWS main notification message essential information of obtaining by paging is true.Owing to the authenticity of ETWS main notification message is not had 4 seconds time delay requirement, so this programme has practicality.
Specifically, survey in the base station:
After the ETWS main notification message is received in the base station, upgrade the ETWS main notification message by beep-page message notice terminal: the base station is after receiving the ETWS main notification message, in the current system message modification cycle, send beep-page message to terminal, carry the essential information part of ETWS main notification message in the described beep-page message;
The system message that periodic broadcasting includes ETWS main notification message security information part is revised in the next system message of receiving the ETWS main notification message in the base station.
Wherein, the base station sends beep-page message to all terminals at paging terminal immediately opportunity after receiving the ETWS main notification message, the time that sends beep-page message can be as required, at least continue a system message and revise the cycle, the base station was determined by the core-network side network element the paging concluding time of terminal.
Send beep-page message if revise cycle n, need revise cycle n+1 broadcasting in system message so and carry the SIB of ETWS main notification message security information part in system message.
The IMSI that issues in the beep-page message of terminal can be ETWS IMSI, and its MCC (MobileCountry Code, mobile communication national code) is 901, and MNC (Mobile Network Code, Mobile Network Code) is 08.
In end side:
Terminal paging receiving message reads the ETWS main notification message essential information part of carrying in its beep-page message; Terminal receives and reads the system message of carrying ETWS main notification message security information part in the next system information modification cycle, and according to the digital signature and the timestamp of security information part, whether the checking essential information is true.
If terminal is received a plurality of beep-page messages, terminal can be ignored except that the beep-page message first; , described a plurality of beep-page messages can be a system message in dispatching cycle, also can be to cross over continuous system message dispatching cycle.
If terminal is revised cycle n in system message and received first beep-page message, revise cycle n+1 in system message so and receive and handle the system message that comprises the ETWS main notification message.
Further be illustrated with an application example of the present invention below in conjunction with accompanying drawing.
The SIB that supposes to carry the security information part of ETWS main notification message is SIB-X, and SIB-X is mapped on the SI-3, and be 160ms the dispatching cycle of SI-3.Paging that the ETWS main notification message is relevant and system information schematic diagram are as shown in Figure 3, wherein, the SFN of SIB (System Frame Number, system frame number) square of 0～7 empty is MIB (Master Information Block, the management information piece), the square of band horizontal stripe is the SI-1 that carries SIB1, and the square of band vertical bar is a paging information, and the square of band grid is the SI-3 that carries SIB-X.
As shown in Figure 4, the base station comprises the steps: the process that the ETWS main notification message sends to terminal
As Fig. 3, because revising the remaining time of cycle n, system message is not enough to all terminals are carried out paging, so also need revise among the cycle n+1, continue the terminal of not finishing paging is carried out paging in system message.Because the paging to terminal may be to occur in system message to revise among the cycle n+1, so SIB-X need continue broadcasting in system information modification cycle n+2.
As shown in Figure 5, the processing procedure of end side reception ETWS main notification message comprises the steps:
In order to improve the probability that terminal accurately receives paging, the base station generally can be in a system message be revised length cycle time, to paging terminal repeatedly, so terminal may receive a plurality of ETWS beep-page messages in the continuous system message cycle of revising, with reference to shown in Figure 3, be broadly divided into 3 kinds of situations, being treated to of this 3 kinds of situation end side:
1. if terminal is only revised among the cycle n in system message, received the ETWS beep-page message of base station side, terminal is only handled first ETWS beep-page message so, revises cycle n+1 in system message and reads the broadcasting of ETWS main notification message system message;
2. if terminal is only revised among the cycle n+1 in system message, received the ETWS beep-page message of base station side, terminal is only handled first ETWS beep-page message so, revises cycle n+2 in system message and reads the broadcasting of ETWS main notification message system message;
3. if terminal is revised among cycle n and the cycle n+1 in system message, all received the ETWS beep-page message of base station side, terminal is only handled first ETWS beep-page message of receiving among the cycle n, remaining beep-page message is all ignored, and only revised cycle n+1 and read the broadcasting of ETWS main notification message system message in system message.
If do not consider because the quality problems of eating dishes without rice or wine etc. causes base station calling message terminal not receive, the maximum time of a terminal of paging postpones to be 2.56s, so take this programme, the time of ETWS main notification message essential information partial content incoming terminal is 2.56s probably.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (11)
1, a kind of sending method of seismic sea wave early warning system ETWS main notification message is characterized in that,
The base station sends beep-page message to terminal in the current system message modification cycle after receiving the ETWS main notification message, carry the essential information part of ETWS main notification message in the described beep-page message;
The cycle is revised in the next system message of receiving the ETWS main notification message in the base station, and broadcast packet contains the system message of ETWS main notification message security information part.
2, sending method as claimed in claim 1 is characterized in that, after the ETWS main notification message is received in the base station, sends beep-page message to terminal opportunity at paging terminal immediately.
3, sending method as claimed in claim 1 is characterized in that, the time that the base station sends described beep-page message continues a system message modification cycle at least, and the base station was determined by the core-network side network element the paging concluding time of terminal.
4, sending method as claimed in claim 1 is characterized in that, the international mobile subscriber identity IMSI that issues in the beep-page message of terminal is ETWS IMSI, and its mobile communication national code MCC is 901, and Mobile Network Code MNC is 08.
5, sending method as claimed in claim 1 is characterized in that, sends beep-page message if cycle n is revised in system message in the base station, revises cycle n+1 broadcasting in system message and carries the system information block SIB of ETWS main notification message security information part.
6, sending method as claimed in claim 1, it is characterized in that, the cycle is revised in the next system message of receiving the ETWS main notification message in the base station, begins to increase in the system message SIB that carries the ETWS main notification message among the system information block 1SIB1 to the map information and the dispatching cycle of system information SI mapping; And when arrive in described dispatching cycle, indicate the temporal frequency position of the SI of described mapping in physical downlink control channel PDCCH, and on Physical Downlink Shared Channel PDSCH, broadcast the system message that comprises described SI.
7, a kind of method of reseptance of seismic sea wave early warning system ETWS main notification message is characterized in that, terminal paging receiving message reads the ETWS main notification message essential information part of carrying in its beep-page message; Terminal receives and reads the system message of carrying ETWS main notification message security information part in the next system information modification cycle, and whether the checking essential information is true.
8, method of reseptance as claimed in claim 7, it is characterized in that,, then ignore except that the beep-page message first if terminal is received a plurality of described beep-page messages, described a plurality of beep-page message is a system message in dispatching cycle, or crosses over continuous system message dispatching cycle.
9, method of reseptance as claimed in claim 7, it is characterized in that terminal paging receiving message is if the beep-page message IMSI that receives is ETWS IMSI, determine that this paging is the ETWS paging, then read the ETWS main notification message essential information part of carrying in its beep-page message.
10, method of reseptance as claimed in claim 7 is characterized in that, terminal shows ETWS main notification message essential information partial content after reading the ETWS main notification message essential information part of carrying in the described beep-page message immediately on terminal interface.
11, method of reseptance as claimed in claim 7, it is characterized in that, terminal is in the next system information modification cycle that receives described beep-page message, receives and read the SIB that carries the ETWS main notification message among the SIB1 to the map information and the dispatching cycle of SI mapping; By monitoring PDCCH information, determine the temporal frequency position of the SI of described mapping, receive and read ETWS main notification message security information part by PDSCH.
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| CN102724637A (en) * | 2012-05-25 | 2012-10-10 | 中兴通讯股份有限公司 | Method, device and eNB for stopping sending earthquake and tsunami warning system primary notification |
| WO2012155605A1 (en) * | 2011-07-08 | 2012-11-22 | 中兴通讯股份有限公司 | Method and system for processing etws alarm message |
| CN104349333A (en) * | 2013-08-02 | 2015-02-11 | 上海贝尔股份有限公司 | Method and device for enhancing wireless coverage of MTC UE (Machine Type Communications User Equipment) |
| CN107925983A (en) * | 2015-08-13 | 2018-04-17 | Lg电子株式会社 | The method and apparatus for notifying SI renewals, EAB renewals and PWS message in a wireless communication system |
| WO2019015589A1 (en) * | 2017-07-17 | 2019-01-24 | 中兴通讯股份有限公司 | Message processing method, device, terminal and base station |
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| CN113920690A (en) * | 2020-07-07 | 2022-01-11 | 中国联合网络通信集团有限公司 | Disaster early warning method and equipment |
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| CN107925983A (en) * | 2015-08-13 | 2018-04-17 | Lg电子株式会社 | The method and apparatus for notifying SI renewals, EAB renewals and PWS message in a wireless communication system |
| CN107925983B (en) * | 2015-08-13 | 2022-04-12 | Lg电子株式会社 | Method and apparatus for notifying SI update, EAB update and PWS messages in a wireless communication system |
| WO2019015589A1 (en) * | 2017-07-17 | 2019-01-24 | 中兴通讯股份有限公司 | Message processing method, device, terminal and base station |
| CN111587588A (en) * | 2018-01-11 | 2020-08-25 | 瑞典爱立信有限公司 | Method and apparatus for updating system information |
| US11617128B2 (en) | 2018-01-11 | 2023-03-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for updating system information |
| CN113892281A (en) * | 2019-03-26 | 2022-01-04 | 苹果公司 | Notification and acquisition of ETWS/CMAS in connected mode for CE-situated UEs |
| CN113892281B (en) * | 2019-03-26 | 2024-04-02 | 苹果公司 | Notification and acquisition of ETWS/CMAS in connected mode of CE-in UE |
| US12041524B2 (en) | 2019-03-26 | 2024-07-16 | Apple Inc. | Notification and acquisition of ETWS/CMAS in connected mode for UEs in CE |
| CN113920690A (en) * | 2020-07-07 | 2022-01-11 | 中国联合网络通信集团有限公司 | Disaster early warning method and equipment |
| CN113920690B (en) * | 2020-07-07 | 2023-03-21 | 中国联合网络通信集团有限公司 | Disaster early warning method and equipment |
| WO2022116863A1 (en) * | 2020-12-02 | 2022-06-09 | 中兴通讯股份有限公司 | Warning method and apparatus, terminal, and storage medium |
| WO2022127752A1 (en) * | 2020-12-15 | 2022-06-23 | 华为技术有限公司 | Message processing method, terminal, and network device |
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