CN112543206B - Group establishing method, access device, system and storage medium - Google Patents
Group establishing method, access device, system and storage medium Download PDFInfo
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- CN112543206B CN112543206B CN201910894145.3A CN201910894145A CN112543206B CN 112543206 B CN112543206 B CN 112543206B CN 201910894145 A CN201910894145 A CN 201910894145A CN 112543206 B CN112543206 B CN 112543206B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1044—Group management mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1044—Group management mechanisms
- H04L67/1046—Joining mechanisms
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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
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a group establishment method, access equipment, a system and a storage medium. The group establishing method comprises the following steps: the access equipment periodically sends a group paging message to the terminal equipment in the cell covered by the access equipment, starts a first timer after sending the group paging message in each sending period, and sends a group configuration message to the terminal equipment after the first timer is overtime. The method avoids the situation that the terminal equipment loses the first character when receiving the group configuration message in the prior art, and improves the communication quality of the trunking communication.
Description
Technical Field
The present invention relates to the field of trunking communications technologies, and in particular, to a method, an access device, a system, and a storage medium for group establishment.
Background
The LTE broadband trunking communication (B-trunC) technology has the advantages of high speed, high spectrum efficiency, low delay, large connection and the like, and also has the functions of emergency command and scheduling, high reliability and safety, thereby becoming the development direction of broadband wireless private networks.
In the current B-TrunC end-to-end protocol, the group establishment procedure is shown in fig. 1, and includes the following steps: the cluster core network initiates a group context establishing process message to the access equipment to inform the access equipment to establish a cluster group call service bearer, the access equipment sends a group paging message to the terminal equipment, the access equipment sends a group configuration message to the terminal equipment, and the terminal equipment joins in a group according to the group call message and the group configuration message to perform corresponding group service monitoring.
If the receiving time of the group call message and the group configuration message of the terminal device is too close, or the receiving time of the group configuration message and the service data is too close, the loss of the message or the data can be caused, and the trunking communication quality is affected.
Disclosure of Invention
The invention provides a group establishing method, access equipment, a system and a storage medium, which improve the communication quality of cluster communication.
A first aspect of the present invention provides a method for group establishment, including:
the access device periodically sends a group page message,
starting a first timer after the access device sends the group paging message in each sending period;
the access device sends a group configuration message after the first timer expires.
In one possible implementation, the group paging message includes a group identification; after the access device sends the group configuration message, the method further includes:
the access equipment acquires the group access state of at least one terminal equipment corresponding to the group identification;
and the access equipment determines whether to start a second timer according to the group access state.
In a possible implementation manner, the determining, by the access device, whether to start the second timer according to the group access status includes:
when the group access state of the first terminal equipment is determined to be an unaccessed state, the access equipment starts the second timer; or
And after determining that the group access state of the second terminal equipment is the accessed state, the access equipment does not start the second timer.
In one possible implementation, the starting, by the access device, the second timer includes: and the access equipment starts the second timer, and sends a data message to the first terminal equipment after the second timer is overtime.
In one possible implementation, the access device not starting the second timer includes: and the access equipment directly sends a data message to the second terminal equipment.
Optionally, the data message includes a service data message or a semi-static activation command.
A second aspect of the present invention provides an access device, comprising:
a transmitting module for periodically transmitting a group paging message,
a timing module, configured to start a first timer after the group paging message is sent in each sending period;
the sending module is further configured to send a group configuration message after the first timer expires.
A third aspect of the present invention provides an access device, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method according to any one of the first aspect of the invention.
A fourth aspect of the present invention provides a trunking communication system, which includes at least one access device according to the third aspect of the present invention, a plurality of terminal devices, a trunking core network, and a dispatching desk.
A fourth aspect of the invention provides a computer readable storage medium having stored thereon a computer program for execution by a processor to perform the method according to any one of the first aspect of the invention.
The embodiment of the invention provides a group establishing method, access equipment, a system and a storage medium. The group establishing method comprises the following steps: the access equipment periodically sends a group paging message to the terminal equipment in the cell covered by the access equipment, starts a first timer after the group paging message is sent in each sending period, and sends a group configuration message to the terminal equipment after the first timer is overtime. The method avoids the situation that the terminal equipment loses the first character when receiving the group configuration message in the prior art, and improves the communication quality of the trunking communication.
Drawings
FIG. 1 is a schematic flow chart of group establishment in the prior art;
fig. 2 is an application scenario diagram of the group establishment method according to the embodiment of the present invention;
fig. 3 is a first flowchart of a group establishment method according to an embodiment of the present invention;
fig. 4 is a second flowchart of a group establishment method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a first structure of an access device according to an embodiment of the present invention;
fig. 6 is a second structural diagram of an access device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware structure of an access device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the preceding drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein.
It should be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The group establishment method provided by the present embodiment of the present invention is developed based on a trunking communication system, and first, the trunking communication system provided by the present embodiment is described.
The trunking communication system provided by this embodiment includes: the system comprises at least one access device, a plurality of terminal devices, a cluster core network and a dispatching desk. The cluster core network realizes the starting or releasing of the group calling under the dispatching of the dispatching desk after the group communication connection is established.
The terminal device may be a wireless terminal or a wired terminal. A wireless terminal may be a device that provides voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. The wireless terminals may be mobile terminals such as mobile phones and computers with mobile terminals, e.g. portable, pocket, hand-held, computer-included or car-mounted mobile devices, which exchange language and/or data with the radio access network. For another example, the Wireless terminal may also be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and other devices. The wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which is not limited in this respect. Optionally, the terminal device may also be a smart watch, a tablet computer, an AR/VR device, or the like.
The access device may be a Base Station (BTS) and/or a Base Station Controller in GSM or CDMA, a Base Station (NodeB, NB) and/or a Radio Network Controller (RNC) in WCDMA, an Evolution Node B (eNB or eNodeB) in LTE, or a relay Station or an access point, or a Base Station (gNB) in a future 5G Network, and the like, and the present invention is not limited thereto.
The group establishment method provided by the embodiment is applicable to any access device in the trunking communication system.
Fig. 2 is an application scenario diagram of the group establishment method according to the embodiment of the present invention. The trunking communication system shown in fig. 2 includes two access devices, which are a first access device 10 and a second access device 11, respectively, where the first access device 10 and the second access device 11 may be trunking base stations or other access devices. The terminal device 20 accesses to the cluster core network 30 through the first access device 10, and the terminal device 21 and the terminal device 22 access to the cluster core network 30 through the second access device 11. Wherein, the terminal device 20, the terminal device 21 and the terminal device 22 belong to the same group. When the trunking core network 30 receives the sip (ack) sent by the dispatching console 40, it starts a group call duration timer, which is used to control the call duration of a group call, and if the group call duration timer exceeds the preset group call duration limit, the trunking core network 30 may actively release the group call. The first access device 10 and the second access device 11 are configured to execute the group establishing method provided in this embodiment, so as to improve the communication quality of group communication.
The following describes the technical solution of the present invention and how to solve the above technical problems with specific examples. Several of the following embodiments may be combined with each other and may not be described in detail in some embodiments for the same or similar concepts or processes.
Fig. 3 is a first flowchart of a group establishment method according to an embodiment of the present invention. As shown in fig. 3, the method provided by the present invention comprises the following steps:
In this embodiment, the access device periodically sends the group paging message, and a preset period of the group paging message may be set by the access device or may be configured by the trunking core network, and the following two methods may be used: in one approach, the access device sends the group paging message with a fixed period, for example, the fixed period is 30 ms, 40 ms or 80 ms, that is, the access device sends the group paging message every 30 ms, 40 ms or 80 ms; in another mode, the access device sends the group paging message in a long and short period, and the access device may set a group join time window after each group establishment, or set a switching time window when detecting that the monitored user terminal performs cell switching. And sending the group paging message based on a short period in the group joining time window or the switching time window, and sending the group paging message based on a long period outside the group joining time window or the switching time window.
The group paging message of this embodiment is a message for indicating that a corresponding ue joins a group. The group paging message is broadcasted to all user terminals in the cell of the trunking base station by the trunking base station after the group is established. A Group Paging message (also called a Trunking Paging message) carries a Group identifier (Trunking Group ID), a Group Priority (Trunking Group Priority), and a Group radio network temporary identifier (G-RNTI).
In this embodiment, the group establishment may be initiated by the dispatcher station or initiated by the main user terminal. The main user terminal is the terminal equipment used by the main user, and the monitoring user terminal is the terminal equipment used by the monitoring user.
Specifically, the access device sends a group configuration message to the terminal device on a Trunking Control Channel (TCCH) Channel. The group configuration message (also called GroupCallConfig) gives the access stratum configuration parameters of the group in the Trunking Traffic Channel (TTCH). Optionally, the GROUP configuration message may further include a non-access stratum NAS message GROUP CALL SETUP INDICATION, which carries a CALL identifier CALL ID, a CALL Type, a media Type MediaType, a device Type ServiceType, a CALL attribute CallAttribute, a called number CalledNumber, and a media description MediaDescription. If the Call is end-to-end encrypted, the end-to-end encryption indication in the Call Attribute IE is set to "1", and the E2E Security Container IE is optionally carried for transmitting end-to-end Security information.
After receiving the group paging message and the group configuration message, the terminal device may receive the group service.
It should be noted that the terminal device may parse the group configuration message sent on the TCCH channel only when receiving the G-RNTI in the group paging message.
In the prior art, there is no timing control for sending the group paging message and the group configuration message, that is, the access device sends the group configuration message after sending the group paging message, and if the sending time of the group paging message and the group configuration message is too close, the terminal device will not be able to correctly analyze the group configuration message, and there is a case of losing the first word.
The difference between this embodiment and the prior art is that the access device of this embodiment starts a first timer after sending the group paging message in each sending cycle, and sends the group configuration message after the first timer times out.
In the method for establishing a group provided in the embodiment of the present invention, an access device periodically sends a group paging message to a terminal device in a cell covered by the access device, the access device starts a first timer after sending the group paging message in each sending period, and sends a group configuration message to the terminal device after the first timer times out. The method avoids the situation that the terminal equipment loses the first character when receiving the group configuration message in the prior art, and improves the communication quality of the trunking communication.
On the basis of the foregoing embodiment, the group establishment method shown in this embodiment avoids the situation that a monitoring terminal loses a first character when receiving a data message when accessing a group for the first time, and further improves the communication quality of trunking communication. The group establishment method provided in this embodiment will be described in detail below with reference to the drawings.
It should be noted that, for convenience of description, it is assumed that there are two terminal devices in the access device cell of this embodiment, and the group access states of the two terminal devices are different, where the group access state of one terminal device is an accessed state, and the group access state of the other terminal device is an unaccessed state. Of course, the number of the terminal devices in this step may also be one, that is, only one terminal device under the cell of the access device belongs to the group, and the group establishment method is similar. The following describes the technical solution provided in this embodiment by taking two terminal devices as an example.
Fig. 4 is a second flowchart of the group establishment method according to the embodiment of the present invention. As shown in fig. 4, the method provided by this embodiment includes the following steps:
The first terminal device and the second terminal device in this embodiment are two terminal devices in the same access device cell, and may be the terminal device 21 and the terminal device 22 shown in fig. 2. Correspondingly, the access device of this embodiment may be the access device 11 shown in fig. 2.
Specifically, the access device sends a data message to the first terminal device and the second terminal device on the TTCH channel. Wherein the data message comprises a service data message or a semi-static activation command. The service data message may be a voice data packet, a video data packet, or a data packet of other service types, which is not limited in this embodiment. And the semi-static activation command is used for indicating the terminal equipment to carry out corresponding group service monitoring according to the determined physical resource.
In the prior art, there is no timing control for sending the group configuration message and the data message, that is, the access device sends the data message after sending the group configuration message, if the sending time of the group configuration message and the data message is too close, the terminal device does not finish parsing the group configuration message, the access device sends the data message on the TTCH, and the data message received by the terminal device may have a situation of missing a first word.
The present embodiment is different from the prior art in that the access device of the present embodiment starts the second timer after determining that the group access status of the terminal device is the unaccessed status, and sends the data message after the second timer expires. For the terminal equipment which has accessed the group, the access equipment directly sends the data message without starting a second timer. That is, the access device starts the second timer after sending the group configuration message, which is for the terminal device not accessing the group, and it is considered that the terminal device not accessing the group needs to configure the group resource according to the group configuration message, so that the time sequence constraint needs to be made on issuing the first data message and the group configuration message on the TTCH, and issuing the data message on the subsequent TTCH will not be constrained by the issuing opportunity of the group configuration message.
According to the group establishing method provided by the embodiment of the invention, the first timer is arranged between the group paging message and the group configuration message, so that the terminal equipment can be ensured to correctly analyze the group configuration message, and the influence on the group configuration process caused by incomplete received group configuration message is avoided; by arranging the second timer between the group configuration message and the first data message, the terminal equipment can be ensured to read a complete first semi-static activation command and a complete service data packet, and the influence of incomplete data messages on the group monitoring process is avoided.
Fig. 5 is a schematic diagram of a first structure of an access device according to an embodiment of the present invention. As shown in fig. 5, the access device 40 provided in this embodiment includes:
a sending module 41 for periodically sending a group paging message,
a timing module 42, configured to start a first timer after the sending module 41 sends the group paging message in each sending period;
the sending module 41 is further configured to send a group configuration message after the first timer expires.
The access device provided by the embodiment of the invention comprises a sending module and a timing module, wherein the sending module is used for periodically sending the group paging message, the timing module is used for starting a first timer after the group paging message is sent in each sending period, and the sending module is also used for sending the group configuration message after the first timer is overtime. The device avoids the situation that the first character is lost when the terminal equipment is accessed into the group configuration message in the prior art, and improves the communication quality of the trunking communication.
Fig. 6 is a schematic diagram of a second structure of an access device according to an embodiment of the present invention. On the basis of the access device shown in fig. 5, as shown in fig. 6, the access device 40 provided in this embodiment further includes: an acquisition module 43 and a determination module 44.
Optionally, the group paging message includes a group identifier;
after the sending module 41 sends the group configuration message, the obtaining module 43 is configured to obtain a group access state of at least one terminal device corresponding to the group identifier;
the determining module 44 is configured to determine whether to start the second timer according to the group access status.
In a possible implementation manner, when the determining module 44 determines that the group access status of the first terminal device is an unaccessed status, the timing module 42 starts the second timer; alternatively, the first and second electrodes may be,
when the determining module 44 determines that the group access status of the second terminal device is the accessed status, the timing module 42 does not start the second timer.
In a possible implementation manner, the timing module 42 starts the second timer, and after the second timer expires, the sending module 41 sends a data message to the first terminal device.
In a possible implementation manner, the timing module 42 does not start the second timer, and the sending module 42 directly sends the data message to the second terminal device.
Optionally, the data message includes a service data message or a semi-static activation command.
The access device provided in this embodiment may execute the technical solutions of the foregoing method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 7 is a schematic diagram of a hardware structure of an access device according to an embodiment of the present invention. As shown in fig. 7, the access device 50 provided in this embodiment includes:
a memory 51;
a processor 52; and
a computer program;
the computer program is stored in the memory 51 and configured to be executed by the processor 52 to implement the technical solution of the access device in any one of the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
Alternatively, the memory 51 may be separate or integrated with the processor 52.
When the memory 51 is a device independent from the processor 52, the access device 50 may further include: a bus 53 for connecting the memory 51 and the processor 52.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor 52 to implement the steps performed by the access device 50 in the above method embodiments.
The embodiment of the present invention further provides a trunking communication system, which includes at least one access device 50, a plurality of terminal devices, a trunking core network, and a dispatching desk.
The processor 52 of the access device 50 is configured to execute each step provided by any of the above method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for group establishment, comprising:
the access device periodically sends a group page message,
starting a first timer after the access device sends the group paging message in each sending period;
the access equipment sends a group configuration message after the first timer times out;
the group paging message includes a group identification; after the access device sends the group configuration message, the method further includes:
the access equipment acquires the group access state of at least one terminal equipment corresponding to the group identification;
and the access equipment determines whether to start a second timer according to the group access state.
2. The method of claim 1, wherein the access device determining whether to start a second timer according to the group access status comprises:
when the group access state of the first terminal equipment is determined to be an unaccessed state, the access equipment starts the second timer; or
And after determining that the group access state of the second terminal equipment is the accessed state, the access equipment does not start the second timer.
3. The method of claim 2, wherein the access device starting the second timer comprises: and the access equipment starts the second timer, and sends a data message to the first terminal equipment after the second timer is overtime.
4. The method of claim 2, wherein the access device does not start the second timer, comprising: and the access equipment directly sends a data message to the second terminal equipment.
5. Method according to claim 3 or 4, wherein the data message comprises a service data message or a semi-static activation command.
6. An access device, comprising:
a sending module for periodically sending a group paging message, the group paging message including a group identification,
a timing module, configured to start a first timer after the group paging message is sent in each sending period;
the sending module is further configured to send a group configuration message after the first timer expires;
an obtaining module, configured to obtain a group access state of at least one terminal device corresponding to the group identifier after sending the group configuration message;
and the determining module is used for determining whether to start the second timer according to the group access state.
7. An access device, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any one of claims 1-5.
8. A trunked communication system comprising at least one access device according to claim 7, a plurality of terminal devices, a trunked core network and a dispatcher.
9. A computer-readable storage medium, having stored thereon a computer program for execution by a processor to perform the method of any one of claims 1-5.
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Citations (2)
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| CN103024680A (en) * | 2011-09-20 | 2013-04-03 | 鼎桥通信技术有限公司 | Activation method for semi-static scheduling and trunking communication system based on semi-static scheduling |
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