CN101137129A - Method and device for checking cluster reliable paging access - Google Patents
Method and device for checking cluster reliable paging access Download PDFInfo
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Abstract
This method includes: The dispatch controller (DC) starts toward the group a GID paging carrying the group verification codes (GVC). After receiving GID paging, the terminal accesses the appointed business channel and checks whether GVC in the paging info are coincident with the local preserved codes. If they are, the normal conversation state (NCS) starts. Otherwise, the terminal sends the GVC matching message to DC. After receiving the GVC matching message, DC judges whether the user belongs to the current group. If it does, DC sends to terminal the matching confirmation message carrying the current GVC. Otherwise, DC sends to the terminal the matching rejection message. After receiving the matching confirmation message, the terminal renews the local GVC and enters NCS. After receiving the matching rejection message, the terminal sets the local group into the invalid state and exits from this calling. This invention ensures the safety of the info interacting.
Description
Technical Field
The present invention relates to mobile communication technologies, and in particular, to a method and an apparatus for verifying reliable paging access in a digital trunking mobile system.
Background
In the PTT (push To talk) group calling service of the trunking communication system, it is an effective paging method in the group calling To initiate the paging To the group by using the group identification GID (group identifier), the method has higher efficiency than the method of initiating the paging To each group member individually, when the terminal receives the GID paging, it inquires the group communication book stored locally To judge whether it stores the group information (when the terminal user belongs To the group, the group information is stored), then it responds the paging To enter the service conversation state. In an actual scenario, a user a has been deleted from a group a, but due to reasons such as that the user a is powered off or the user a is in a call state, the group information on the user terminal cannot be updated in time, the terminal still retains the group information of the group a, when a call to the group a is initiated and a user in the group responds to a page and is called, the group user sends a response signaling responding to the page using the same reverse traffic channel in a shared traffic channel mode, the responses are almost simultaneously sent and lost in an air collision, a digital trunking system of CDMA (Code Division multiple Access) system has no timing mechanism in the same reverse channel and is more prone to air message collision loss, a trunking dispatch controller cannot reliably receive a response message of the user, and cannot confirm that an illegal user (a user not belonging to the group) is called according to the response message, this can lead to information leakage in private networks with high security requirements. Group calling needs to ensure both paging efficiency and reliable access of users, and only using GID information to judge that a user belongs to the group causes information leakage when paging access is required.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a verification method and a device for quick paging reliable access in a digital trunking mobile system.
The invention is realized in such a way that:
a check method for cluster reliable paging access, a terminal first initiates a group call; the dispatching controller initiates a Group Identification (GID) paging carrying a group check code to a group; the terminal receives the GID paging, accesses the distributed service channel, simultaneously checks whether the group check code carried in the paging message is consistent with the locally stored group check code, and enters a normal conversation state if the group check code is consistent with the locally stored group check code; otherwise, sending a check code matching message to the scheduling controller; the dispatching controller receives the check code matching message, judges whether the user belongs to the current group, and sends a matching confirmation message carrying the current check code of the group to the terminal if the user belongs to the current group; otherwise, sending a matching rejection message to the terminal; the terminal receives the matching response message, if the matching response message is a matching confirmation message, the local group check code is updated, and then the terminal is switched to a normal conversation state; if the call is matched and rejected, the local group is set to be in an invalid state and then the call is exited.
According to the scheme, the group check code is independently distributed to each group by the scheduling register, and the scheduling register updates the group check code when the group information changes.
According to the scheme, the method further comprises the following steps: the dispatching controller receives a group call initiated by a terminal and sends a call authentication request to a dispatching register; the dispatching register processes the call authentication and returns call authentication response information carrying the group identification GID and the group check code to the dispatching controller.
According to the scheme, the scheduling controller establishes an air paging channel through the base station and sends the GID paging carrying the group check code.
According to the scheme, if the group check code carried in the paging message is inconsistent with the group check code stored locally, the terminal sends a check code matching message to the scheduling controller and simultaneously prompts that the validity of the user is being checked, and the user can not apply for the talk right without receiving voice.
According to the scheme, if the terminal does not receive the matching response message within the specified time and the specified times, the terminal sends the check code matching message to the scheduling controller again; if the number of times exceeds the specified number, the call is quitted.
A verification apparatus for cluster reliable paging access, comprising: the device comprises a resource setting unit and a check code matching processing unit; the system comprises a resource setting unit, a group checking unit and a group calling unit, wherein the resource setting unit is used for initiating a group GID paging carrying a group checking code to a group after a terminal initiates a group call; and the terminal is used for receiving the check code matching message and transmitting the check code matching message to the check code matching processing unit when the terminal receives the GID paging and finds that the group check code carried in the paging message is inconsistent with the locally stored group check code and transmits the check code matching message; the check code matching processing unit is used for processing the check code matching message, judging whether the user belongs to the current group or not, and if so, sending a matching confirmation message carrying the current check code of the group to the terminal; otherwise, sending a matching rejection message to the terminal.
According to the scheme, the device further comprises: the scheduling register is used for distributing an individual group check code for each group, and updating the group check code when the group information changes; when the terminal initiates a group call, the dispatch register processes the call authentication and returns the call authentication response information carrying the group identification GID and the group check code to the resource setting unit.
According to the scheme, the resource setting unit establishes an air paging channel through the base station and sends the GID paging carrying the group check code.
According to the above scheme, the check code matching processing unit further comprises: a group information unit and a group member information unit; the group information unit is used for storing the group information of the current calling group; the group member information unit is used for storing the group member information of the current calling group; the check code matching processing unit judges whether the user belongs to the current group according to the content stored in the group member information unit, and if the user belongs to the current group, the latest check code is obtained from the group information unit and sent to the terminal along with the matching confirmation message.
Due to the adoption of the scheme, compared with the prior art, the invention has the following advantages:
the invention carries the group check code in the paging message, the terminal judges whether to directly access the call according to the group check code, if not, the validity of the user is checked through the check code matching, finally, the reliable access of the call of the user under the group is achieved, and the illegal user quits the call through the check code matching mechanism, thereby achieving the goal that the user can reliably access the call.
In the method of the invention, the group check code is carried in the GID paging signaling, and the terminal accesses the call after verifying the group check code, thereby solving the reliability of user access when the group uses the GID paging and ensuring the safety.
The device of the invention realizes the reliable access of the group members through the group check code under the condition of not changing the group GID paging mode, and solves the difficulty that the user can not be legally and reliably accessed by using the shared service channel in the GID paging.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a verification method for group call reliable paging access according to an embodiment of the present invention;
FIG. 2 is a diagram of a cluster system architecture for a PTT call;
fig. 3 is a timing flow diagram of a verification method for group call reliable paging access in accordance with an embodiment of the present invention;
fig. 4 is a block diagram of a verification apparatus for group call reliable paging access according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention in conjunction with the attached drawings:
in the invention, the scheduling register distributes an independent group check Code C-Code for each group, and updates the group check Code when the group information (group member information and the like) changes. In addition, the group check code is an attribute of the group information, and can be identified individually or transmitted together as a sub-attribute in the GID attribute, and the group check code is synchronized to the terminal through a group information update process, which is disclosed by a patent related to group information update and is not described in detail herein.
The verification method specifically comprises the following steps:
the first step is as follows: the terminal user presses down the PTT key to apply for initiating a PTT group call;
the second step is that: the dispatching controller receives the PTT group calling request and sends a calling authentication request to a dispatching register;
the third step: the calling authentication response information sent to the dispatching controller by the dispatching register carries the identification GID of the group and the group check Code C-Code;
the fourth step: the dispatching controller initiates a group check Code C-Code carried by the group GID paging of the opposite group, and the base station sends the GID paging carrying the C-Code in an air paging channel;
the fifth step: the terminal receives the GID paging message, accesses the distributed service channel, simultaneously checks whether the group check Code C-Code in the paging message is consistent with the locally stored group check Code C-Code, enters a normal conversation state when the group check Code C-Code is equal to the locally stored group check Code C-Code, sends a check Code matching message when the group check Code C-Code is unequal to the locally stored group check Code C-Code, requests the dispatching controller to update the group check Code, and simultaneously prompts that the terminal is checking the validity of the user and is in a checking state (the user can not apply for the right of speaking without receiving voice;
and a sixth step: the dispatching controller receives the check Code matching message of the terminal, judges that the user belongs to the current group, sends a matching confirmation message to the terminal, and sends the current check Code C-Code of the group on the dispatching controller to the terminal along with the confirmation message;
when receiving a check code matching message of the terminal, the scheduling controller judges that the user does not belong to the current group and sends a matching rejection message to the terminal;
the seventh step: the terminal receives the matching confirmation message, updates the local group check Code C-Code, and then switches to a normal conversation state;
and the terminal receives the matching rejection message, sets the local group to be in an invalid state and then quits the call. The GID page for the group is not responded to until the group information update becomes active when the group status is inactive.
The timeout protection mechanism: if the terminal does not receive the matching response message (including the matching confirmation message or the matching rejection message) after overtime, the terminal retransmits the check code matching message, and if the terminal does not receive the matching response message for a plurality of times (default to 3 times), the terminal exits from the call.
The following are specific examples according to the invention:
as shown in fig. 1, the verification method for cluster reliable paging access according to the present invention specifically includes the following steps:
s102, the terminal user (or dispatcher) inputs the group number and presses the PTT key to initiate the PTT group call, the dispatch register processes the call authentication, and the response returns to carry the group GID and the check Code C-Code.
S104, the dispatching controller receives the call authentication response, initiates paging through the base station, the base station establishes air resources, and then initiates GID paging with the C-Code.
S106, the terminal receives the paging, and accesses the service channel appointed in the paging signaling after checking the locally stored group according to the GID in the paging signaling.
S108, the terminal checks the locally stored group check Code according to the group check Code C-Code in the paging signaling, and if the group check Code C-Code is equal to the locally stored group check Code C-Code, the terminal directly switches to S130 to enter a call passing state; if not equal, the process goes to S110.
S110, the terminal interface prompts 'checking user validity' and is in a user checking state.
S112, the terminal sends a group check code matching request instruction on a service channel, the scheduling controller receives the check code matching instruction to process, whether the user is a group member is judged, and if the user is the group member, the check code of the current group is sent to the terminal along with a matching confirmation instruction; otherwise, sending a matching rejection instruction to the terminal.
S114, the terminal receives a check code matching response instruction (including a matching confirmation instruction or a matching rejection instruction) of the dispatching controller, and the terminal shifts to S116 to process the response instruction after receiving the matching response instruction; if the response instruction is not received within the specified time, the step S122 is carried out to judge whether the response is not received for a plurality of times (default to 3 times), if the response instruction is not received for a plurality of times, the step S132 is carried out to quit the calling, otherwise, the step S112 is carried out to send the group check code matching request instruction again.
S116, the terminal judges whether the response instruction is a matching confirmation instruction, and if the response instruction is the matching confirmation instruction, the process is switched to S118; if the instruction is a rejection instruction, the process proceeds to S120.
And S118, the terminal updates the group check code in the confirmation response instruction with the check code of the local group, and then the terminal is switched to S130 to enable the user to enter a call state.
S120, the terminal receives the matching rejection instruction, the local group is set to be in an invalid state (the terminal does not receive the GID paging of the group until the group is updated newly), and the terminal is switched to S132 to quit calling.
As shown in fig. 2, the cluster system includes: the base station subsystem is used for establishing air resources with the terminal; the scheduling controller is used for PTT call scheduling; and the scheduling register is used for storing the user and group information and processing the PTT call authentication and charging.
Fig. 3 is a timing flow diagram of a verification method for group call reliable paging access according to an embodiment of the present invention, which includes the following steps:
before a call is initiated, most members of the group update the local group check Code C-Code through a normal group information updating process.
S302, the terminal presses the PTT key to initiate the group call.
S304, the dispatching controller receives the PTT calling information of the terminal and sends a calling authentication request to the dispatching register.
S306, the dispatching register processes the call authentication request and sends an authentication response to the dispatching controller, wherein the authentication response carries the group identifier GID and the group check Code C-Code.
S308, the dispatching controller receives the call authentication response, initiates paging through the base station, the base station establishes air resources, and then initiates GID paging with C-Code.
S310, the terminal receives the paging, judges that the group check codes are not consistent, and sends a group check code matching request instruction to the scheduling server. The specific treatment is as follows: the terminal receives the paging, and accesses the service channel appointed in the paging signaling after checking the locally stored group according to the GID in the paging signaling. The terminal checks the locally stored group check Code according to the group check Code C-Code in the paging signaling (if the group check Code C-Code is equal, the terminal directly enters a conversation state, so that most terminals completing C-Code updating in the group judge that the C-Code is equal, the terminal directly enters the conversation state), the check Code is inconsistent with a terminal interface, the terminal interface prompts that the user validity is checked, the terminal is in the user checking state, and the terminal sends a group check Code matching request instruction to the scheduling server on a service channel.
S312, the dispatching controller receives the check code matching instruction to process, judges that the user is a group member, and sends the check code of the current group to the terminal along with the confirmation response instruction. And after receiving the acknowledgement command, the terminal updates the group check code in the acknowledgement command with the check code of the local group, and enters a call state after the completion.
And S314, the scheduling controller receives the check code matching instruction to process, judges that the user is not a group member, and sends a matching rejection instruction to the terminal. The terminal receives the match rejection command, sets the local group to invalid (the terminal will not receive the GID page of the group until the group gets a new update), and then the subscriber exits the call.
And S316, if the terminal does not receive the matching response instruction within the specified time, the terminal sends the group check code matching request instruction again, and if the terminal does not receive the response for multiple times (default to 3 times), the terminal exits from the call.
As shown in fig. 4, the verification apparatus for group call reliable paging access according to the embodiment of the present invention includes: a resource setting unit 402, configured to establish paging and call resources between the base station and the scheduling controller when the scheduling controller initiates GID paging after the PTT call authentication is completed; and a check code matching processing unit 404, configured to process a check code matching request message sent by a user. The check code matching processing unit 404 includes: a group information unit 4042, which stores group information, GID, C-Code, etc. of the current call group; the group member information unit 4044 stores group member information of the current call group.
The resource setting unit 402 is responsible for initiating a group GID paging with C-Code, transmitting a group check Code matching request of the terminal, sending the request to the check Code matching processing unit 404, judging whether the user belongs to the current group according to the group member information unit 4044, and if the user belongs to the current group, obtaining the current latest check Code from the group information unit 4042 and sending the current latest check Code to the terminal along with a matching confirmation instruction; when the check code matching processing unit 404 determines that the user is not a member of the group, a matching rejection instruction is returned to the terminal.
Additional advantages and modifications will readily appear to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details and representative embodiments shown and described herein. Accordingly, various modifications may be made without departing from the spirit or scope of the invention as defined by the claims and their equivalents.
Claims (10)
1. A verification method for cluster reliable paging access, a terminal first initiates a group call, characterized in that the method comprises the following steps:
the dispatching controller initiates a Group Identification (GID) paging carrying a group check code to a group;
the terminal receives the GID paging, accesses the distributed service channel, simultaneously checks whether the group check code carried in the paging message is consistent with the locally stored group check code, and enters a normal conversation state if the group check code is consistent with the locally stored group check code; otherwise, sending a check code matching message to the scheduling controller;
the dispatching controller receives the check code matching message, judges whether the user belongs to the current group, and sends a matching confirmation message carrying the current check code of the group to the terminal if the user belongs to the current group; otherwise, sending a matching rejection message to the terminal;
the terminal receives the matching response message, if the matching response message is a matching confirmation message, the local group check code is updated, and then the terminal is switched to a normal conversation state; if the call is matched and rejected, the local group is set to be in an invalid state and then the call is exited.
2. The checking method of claim 1, wherein the group check code is allocated separately for each group by a scheduling register, and the scheduling register updates the group check code when the group information is changed.
3. A verification method according to claim 2, characterized in that the method further comprises the steps of:
the dispatching controller receives a group call initiated by a terminal and sends a call authentication request to a dispatching register;
the dispatching register processes the call authentication and returns call authentication response information carrying the group identification GID and the group check code to the dispatching controller.
4. The verification method of claim 1, wherein the scheduling controller transmits the GID page carrying the group verification code by establishing an over-the-air paging channel through the base station.
5. The checking method of claim 1, wherein if the group check code carried in the paging message is not consistent with the group check code stored locally, the terminal sends a check code matching message to the scheduling controller, and simultaneously prompts that the validity of the user is being checked, and the user cannot apply for the talk right without receiving voice.
6. The checking method of any one of claims 1 to 5, wherein the terminal transmits the check code matching message to the scheduling controller again if the matching response message is not received within a prescribed time and a prescribed number of times; if the number of times exceeds the specified number, the call is quitted.
7. A verification apparatus for clustered reliable paging access, the apparatus comprising: the device comprises a resource setting unit and a check code matching processing unit; wherein,
the resource setting unit is used for initiating a group call to the group after the terminal initiates the group call, and initiating a GID paging carrying a group check code to the group; and the terminal is used for receiving the check code matching message and transmitting the check code matching message to the check code matching processing unit when the terminal receives the GID paging and finds that the group check code carried in the paging message is inconsistent with the locally stored group check code and transmits the check code matching message;
the check code matching processing unit is used for processing the check code matching message, judging whether the user belongs to the current group or not, and if so, sending a matching confirmation message carrying the current check code of the group to the terminal; otherwise, sending a matching rejection message to the terminal.
8. The verification apparatus of claim 7, further comprising:
the scheduling register is used for distributing an individual group check code for each group, and updating the group check code when the group information changes;
when the terminal initiates a group call, the dispatch register processes the call authentication and returns the call authentication response information carrying the group identification GID and the group check code to the resource setting unit.
9. The checking apparatus of claim 7, wherein the resource setting unit transmits the GID page carrying the group check code by establishing an over-the-air paging channel through the base station.
10. The verification apparatus according to any one of claims 7 to 9, wherein the verification code matching processing unit further includes: a group information unit and a group member information unit; wherein,
the group information unit is used for storing the group information of the current calling group;
the group member information unit is used for storing the group member information of the current calling group;
the check code matching processing unit judges whether the user belongs to the current group according to the content stored in the group member information unit, and if the user belongs to the current group, the latest check code is obtained from the group information unit and sent to the terminal along with the matching confirmation message.
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| CN200710105967A CN100589614C (en) | 2007-06-04 | 2007-06-04 | Be used for method of calibration and device that the reliable paging of cluster inserts |
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| CN200710105967A CN100589614C (en) | 2007-06-04 | 2007-06-04 | Be used for method of calibration and device that the reliable paging of cluster inserts |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272547B (en) * | 2008-05-14 | 2012-07-04 | 中兴通讯股份有限公司 | Call establishment method for cluster communication system |
| WO2016110077A1 (en) * | 2015-01-08 | 2016-07-14 | 华为技术有限公司 | Method, device and system for implementing broadband trunking service |
| CN113438608A (en) * | 2021-06-03 | 2021-09-24 | 珠海一粟科技有限公司 | Wireless intelligent interactive communication method and communication system |
-
2007
- 2007-06-04 CN CN200710105967A patent/CN100589614C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272547B (en) * | 2008-05-14 | 2012-07-04 | 中兴通讯股份有限公司 | Call establishment method for cluster communication system |
| WO2016110077A1 (en) * | 2015-01-08 | 2016-07-14 | 华为技术有限公司 | Method, device and system for implementing broadband trunking service |
| CN113438608A (en) * | 2021-06-03 | 2021-09-24 | 珠海一粟科技有限公司 | Wireless intelligent interactive communication method and communication system |
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| Publication number | Publication date |
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| CN100589614C (en) | 2010-02-10 |
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