CN111246392B

CN111246392B - PDT and LTE cluster paging mutual-assistance method and device under wide-narrow fusion system

Info

Publication number: CN111246392B
Application number: CN201811433136.6A
Authority: CN
Inventors: 朱玉梅; 袁乃华; 范晨; 魏立梅
Original assignee: Chengdu TD Tech Ltd
Current assignee: Chengdu TD Tech Ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2022-07-15
Anticipated expiration: 2038-11-28
Also published as: CN111246392A

Abstract

The application discloses a PDT and LTE cluster paging mutual-assistance method under a wide-narrow fusion system, which comprises the following steps: the core network receives the terminal capability report; when a terminal or a dispatching desk initiates group establishment, the core network carries out corresponding group establishment according to the capability and the state of group members of the group. The application also provides core network equipment. By applying the technical scheme disclosed by the application, the group can be monitored no matter which network the dual-mode single-standby terminal currently resides in.

Description

PDT (data transfer protocol) and LTE (long term evolution) cluster paging mutual assistance method and equipment under wide-narrow fusion system

Technical Field

The application relates to the technical field of communication, in particular to a PDT and LTE cluster paging mutual-assistance method and device under a wide-narrow fusion system.

Background

With the continuous development of wireless communication technology, trunking communication technology develops from an analog system to a narrowband digital trunking system, and with the increasing demand of industrial users on wireless broadband, the technology develops from a previous simple voice service to a multimedia service digital trunking communication system represented by LTE.

At present, police digital trunking system (PDT) is used by public security, and the PDT system has narrow bandwidth and only supports voice service, short message, GIS information and a small amount of packet data, so that the increasingly urgent broadband service requirement of the public security cannot be met. In order to protect the existing network construction of PDT and smooth transition of the network, the coexistence of PDT and LTE systems is an unblocked trend, and under the trend, a PDT/LTE fusion system and a PDT/LTE dual-mode terminal are generated at the same time.

Fig. 1 is a schematic diagram of a conventional PDT/LTE fusion system architecture. As shown in fig. 1:

various terminals such as a multimode terminal, a single-mode terminal, a data terminal, a vehicle-mounted terminal and the like are accessed to a PDT base station or a T-eNB base station through a PU interface;

the PDT base station or the T-eNB base station is accessed to a core network (TCN) through a PS interface;

the core network comprises network entities such as eHSS, eMMC, TCM, TMM, eXGW and the like which are respectively used for realizing corresponding functions;

the TCN is accessed to the mobile cellular network, the PSTN, the PDT network and other cluster networks through the IGW;

the TCN communicates with a data service network or other TCNs through corresponding interfaces;

the TCN communicates with functional entities such as DC, ReS, SeS, ApS and the like in the cluster scheduling application platform through a PD interface.

The terminal is connected with the base station through a PU interface;

the base station is connected with the cluster core network through a PS interface,

the cluster core network is connected with the cluster scheduling application platform through a PD interface;

DC is dispatcher Console (Dispatch Console);

the ReS is a Record/video Server (Record Server);

the SeS is a Security Server (Security Server);

ApS is an Application Server (Application Server).

The related research is less at present on how the two systems of the PDT/LTE with wide and narrow fusion can better cooperate to meet the overall performance and function of the system with wide and narrow fusion.

Due to the PDT/LTE air interface resource problem, a group can only be established in an LTE network, so that a group which needs to be monitored by a terminal in the PDT network cannot be monitored, or the group can only be established in the PDT network, so that the group which needs to be monitored by the terminal in the LTE network cannot be monitored.

Disclosure of Invention

The application provides a PDT and LTE cluster paging mutual-help method and equipment under a wide-narrow fusion system, so that a terminal can monitor a group.

The PDT and LTE cluster paging mutual-help method under the wide-narrow fusion system comprises the following steps:

the core network receives the terminal capability report;

when a terminal or a dispatching station initiates group establishment, the core network performs a corresponding group establishment process according to the capability and the state of group members of the group.

Preferably, the capabilities of the terminal include: the dual-mode single-standby single-pass, the dual-mode dual-standby single-pass and the dual-mode dual-standby dual-pass are characterized in that:

the dual-mode single-standby single-pass mode indicates that the terminal is in an idle state and only resides in one network and uses services;

the dual-mode dual-standby single-pass mode indicates that the terminal resides in both networks and can only use services in one of the networks at the same time;

the dual-mode dual-standby dual-channel indicates that the terminal resides in both networks and supports concurrent services in both networks at the same time.

Preferably, if the terminal does not carry the capability in the registration process, the core network regards the terminal as a PDT single-mode terminal or an LTE single-mode terminal.

Preferably, the step of the core network performing the corresponding group establishment procedure according to the capability and the status of the group members of the group includes:

when PDT single mode terminals and/or dual-mode single standby terminals exist in the online members of the group, group resources are established at PDT air interfaces, and if all the online members of the group are PDT single mode terminals and PDT air interface resources are insufficient, the group establishment fails;

when an LTE single-mode terminal and/or a dual-mode single-standby terminal exist in the group online members, a group resource is established at an LTE air interface, and if all the group online members are LTE single-mode terminals and the LTE air interface resource is insufficient, the group establishment fails.

Preferably, the method further comprises:

when the group on-line member is a terminal with double modes and single standby in the LTE network and the current LTE group resource is insufficient, indicating the group to be established in the PDT network in an LTE air interface paging message, and determining whether the terminal needs to go to the PDT network for monitoring by the terminal;

when the group online member is a terminal with double modes and single standby in the PDT network and the current PDT group resource is insufficient, the PDT empty paging message indicates that the group is established in the PDT network, and the terminal determines whether to go to the LTE network for monitoring.

The application also discloses a core network device, which is applied to PDT and LTE cluster paging under the wide-narrow integrated system, and comprises: a capability receiving module and a group establishing module, wherein:

the capability receiving module is used for receiving the capability report of the terminal;

the group establishing module is used for carrying out corresponding group establishing process according to the capability and the state of the group members of the group when a terminal or a dispatching desk initiates the group establishing.

the dual-mode dual-standby single-pass mode means that the terminal resides in both networks and can only use services in one of the networks at the same time;

the dual-mode dual-standby bi-pass indicates that the terminal resides in both networks and supports concurrent service in both networks at the same time.

Preferably, if the terminal does not carry the capability in the registration process, the terminal is used as a PDT single-mode terminal or an LTE single-mode terminal.

Preferably, the group establishing module is specifically configured to:

when an LTE single-mode terminal and/or a dual-mode single-standby terminal exist in the group on-line members, a group resource is established at an LTE air interface, and if all the group on-line members are LTE single-mode terminals and the LTE air interface resource is insufficient, the group establishment fails.

Preferably, the group establishing module is further configured to:

when the group on-line member is a terminal of a dual-mode single standby LTE network and the current LTE group resource is insufficient, indicating the group to be established in the PDT network in an LTE air interface paging message, and determining whether to go to the PDT network for monitoring by the terminal;

According to the technical scheme, the PDT and LTE cluster paging mutual-assistance method and the core network equipment in the wide-narrow fusion system report PDT or LTE support capability to the core network through the terminal, so that when the terminal or the dispatching desk initiates group establishment, the core network can perform corresponding group establishment according to the capability and the state of group members of the group, and decide to establish the group in a PDT network or an LTE network. Therefore, for a dual-mode single-standby terminal, if the terminal is currently in a PDT network or an LTE network and the network side establishes a group in another network, the terminal can still monitor the group.

Drawings

FIG. 1 is a diagram of a conventional PDT/LTE fusion system architecture;

FIG. 2 is a flow chart of a PDT and LTE cluster paging mutual aid method under the wide-narrow fusion system of the present application;

fig. 3 is a schematic structural diagram of a core network device according to the present application;

FIG. 4 is a schematic flowchart illustrating a group establishment only in the PDT network according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating that a group can only be established in an LTE network in the second embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by referring to the accompanying drawings and examples.

Fig. 2 is a flowchart of a PDT and LTE trunking paging mutual assistance method in the wide and narrow fusion system of the present application, where the flowchart includes the following steps:

step 201: and the core network receives the terminal capability report.

Step 202: when a terminal or a dispatching station initiates group establishment, the core network performs a corresponding group establishment process according to the capability and the state of group members of the group.

The steps involved in the above-described flow are described in detail below.

The step 201 relates to dual-mode terminal capability reporting:

for a PDT/LTE dual-mode terminal, the following three capability conditions can be classified according to the capability of the terminal, and the terminal needs to carry capability information to a core network during registration.

Double-mode single-standby single-pass: the terminal is in an idle state and resides (registers) in only one network, and uses the service;

the terminal resides (registers) in both networks, and can only use the service in one of the networks at the same time;

double-mode double-standby double-pass: the terminal resides (registers) in both networks and supports concurrent service in both networks at the same time.

And if the terminal does not carry the capability in the terminal registration process, the terminal is considered as a PDT single-mode terminal or an LTE single-mode terminal.

The above step 202 involves group establishment:

when a terminal or a dispatching desk initiates group establishment, a core network performs a corresponding group establishment process according to the capability and the state of group members of the group, and the method specifically comprises the following steps:

when PDT single mode terminals and/or dual-mode single standby PDT network terminals exist in group online members, group resources need to be established at PDT air interfaces, and if all the group online members are PDT single mode terminals and PDT air interface resources are insufficient, group establishment fails;

when an LTE single-mode terminal and/or a dual-mode single-standby terminal exist in the group on-line members, the group resources are required to be established at an LTE air interface, and if all the group on-line members are LTE single-mode terminals and the LTE air interface resources are insufficient, the group establishment fails.

When the group on-line member is a terminal with double modes and single standby in the LTE network and the current LTE group resource is insufficient, the group is indicated to be established in the PDT network in the LTE air interface paging message, and the terminal determines whether to monitor the PDT network.

When the group on-line member is a terminal with double modes and single standby in the PDT network and the current PDT group resource is insufficient, the PDT air interface paging message indicates that the group is established in the PDT network, and the terminal determines whether to monitor to the LTE network.

Corresponding to the above method, the present application further provides a core network device, which is applied to PDT and LTE trunking paging in a wide and narrow integrated system, and a composition structure of the core network device is shown in fig. 3, where the core network device includes: a capability receiving module and a group establishing module, wherein:

the capability receiving module is used for receiving the terminal capability report;

As previously mentioned, the capabilities of the terminal include: double-mode single-standby single-pass, double-mode double-standby single-pass and double-mode double-standby double-pass, wherein:

And if the terminal does not carry the capability in the registration process, the terminal is used as a PDT single-mode terminal or an LTE single-mode terminal.

Preferably, the group establishing module is specifically configured to:

Preferably, the group establishing module is further configured to:

The technical solution of the present application is further described in detail by two preferred embodiments.

The first embodiment is as follows: PDT side flow description

Fig. 4 is a schematic flowchart of a group establishment only in the PDT network according to an embodiment of the present application, where the flowchart includes the following steps:

step 1: when a terminal of the PDT network is started or the network is switched, the dual-mode single standby initiates registration to the PDT base station through the C _ RAND, and carries capacity indication, as shown in table 1, wherein a gray part is newly added in the PDT standard.

TABLE 1

And 2, step: and the LTE single-mode terminal initiates the establishment of a combined group to the PDT/LTE integrated core network.

And 3, step 3: because the group has the LTE single-mode terminal, the PDT/LTE fusion core network can only judge that the group can be established in the LTE network.

And 4, step 4: PDT/LTE fusion core network informs PDT base station, and PDT empty paging indicates that LTE network has a group.

And 5: the PDT base station indicates, at the PDT air interface, through a C _ AHOY or P _ AHOY page, that there is a group to be monitored in the LTE network, as shown in the gray portion in table 2, where "10112" indicates that the voice service is located in the LTE network.

TABLE 2

TABLE 3

Step 6: meanwhile, the PDT/LTE fusion core network instructs the LTE base station to page at an LTE air interface.

And 7: the LTE base station sends a paging indication at an LTE air interface, the indication can be received by the PDT/LTE dual-mode terminal and the LTE single-mode terminal, and the PDT single-mode terminal cannot receive the paging indication and cannot monitor the group.

And 8: the PDT/LTE dual-mode terminal decides to monitor the group and executes step 9.

And step 9: and the PDT/LTE dual-mode terminal initiates a process of accessing an LTE network to the LTE base station.

Step 10: and the LTE base station indicates that the LTE network is currently in the PDT/LET fusion core network.

This concludes the flow of the present embodiment.

The second embodiment: LTE side flow description

Fig. 5 is a schematic flow chart of the group establishment in the PDT network according to the second embodiment of the present application, which includes the following steps:

step 1: when a terminal of an LTE network is started or network switching registration is carried out, PDT/LTE capacity indication is carried by MS Radio Access capability: PDT/LTE double-mode single-standby, PDT/LTE double-mode double-standby single-pass or PDT/LTE double-mode double-standby double-pass.

And 2, step: and the PDT single-mode terminal initiates the establishment of a combined group to the PDT/LTE integrated core network.

And step 3: because PDT single-mode terminals exist in the group, the PDT/LTE fusion core network judges that the group can be established only in the PDT network.

And 4, step 4: and the PDT/LTE fusion core network informs the LTE base station, and the PDT network has a group in the LTE empty paging indication.

And 5: and the LTE base station indicates that the PDT network has a group to be monitored at an LTE air interface through paging. The indication is shown as underlined in the code below.

And 6: meanwhile, the PDT/LTE fusion core network indicates the PDT base station to page at the PDT air interface.

And 7: the PDT base station sends a paging indication at a PDT empty port, the indication can be received by the PDT/LTE dual-mode terminal and the PDT single-mode terminal, and the LTE single-mode terminal cannot receive the paging indication and therefore cannot monitor the group.

And 8: the PDT/LTE dual-mode terminal decides to monitor the group, and executes step 9.

And step 9: and the PDT/LTE dual-mode terminal initiates a process of accessing the PDT network to the PDT base station.

Step 10: and the PDT base station indicates the current PDT network to the PDT/LET fusion core network.

This concludes the flow of the present embodiment.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A PDT and LTE cluster paging mutual-help method under a wide-narrow fusion system is characterized by comprising the following steps:

the core network receives the terminal capability report; wherein the capabilities of the terminal include: double-mode single-standby single-pass, double-mode double-standby single-pass and double-mode double-standby double-pass, wherein:

the dual-mode dual-standby dual-pass indicates that the terminal resides in both networks and supports concurrent services in the two networks at the same time;

when a terminal or a dispatching desk initiates group establishment, a core network carries out corresponding group establishment according to the capability and the state of group members of the group; the method specifically comprises the following steps:

when PDT single-mode terminals and/or dual-mode single-standby terminals exist in group online members in a PDT network, group resources are established at PDT air interfaces, and if all the group online members are PDT single-mode terminals and PDT air interface resources are insufficient, group establishment fails;

when an LTE single-mode terminal and/or a dual-mode single-standby terminal exist in the group online members, a group resource is established at an LTE air interface, and if all the group online members are LTE single-mode terminals and the LTE air interface resource is insufficient, the group establishment fails;

when the group on-line member is a terminal with double modes and single standby in the PDT network and the current PDT group resource is insufficient, the PDT air interface paging message indicates that the group is established in the LTE network, and the terminal determines whether to go to the LTE network for monitoring.

2. The method of claim 1, wherein:

and if the terminal does not carry the capability in the registration process, the core network considers that the terminal is a PDT single-mode terminal or an LTE single-mode terminal.

3. A core network device is applied to PDT and LTE cluster paging under a wide-narrow fusion system, and is characterized by comprising: a capability receiving module and a group establishing module, wherein:

the capability receiving module is used for receiving the capability report of the terminal; wherein the capabilities of the terminal include: double-mode single-standby single-pass, double-mode double-standby single-pass and double-mode double-standby double-pass, wherein:

the dual-mode dual-standby bi-pass indicates that the terminal resides in both networks and supports concurrent service in the two networks at the same time;

the group establishing module is used for carrying out a corresponding group establishing process according to the capability and the state of the group members of the group when a terminal or a dispatching desk initiates the group establishing; the method specifically comprises the following steps:

4. The apparatus of claim 3, wherein: