CN111836245A

CN111836245A - CC code compatibility method and terminal

Info

Publication number: CN111836245A
Application number: CN201910323752.4A
Authority: CN
Inventors: 苑雪; 卫威
Original assignee: Chengdu TD Tech Ltd
Current assignee: TD Tech Chengdu Co Ltd; Chengdu TD Tech Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-10-27
Anticipated expiration: 2039-04-22
Also published as: CN111836245B

Abstract

The application discloses a CC code compatibility method, which is applied to trunking communication and comprises the following steps: the terminal determines whether the current network is an R1 network or an R2 network; if the network is R2, the terminal adds "+" before the first digit of the user number, the emergency number and the group number sent by the network side. The application also discloses a corresponding terminal device. By applying the technical scheme disclosed by the application, the problem of incompatibility when the R21.64 protocol terminal is in butt joint with the R1 network can be solved.

Description

CC code compatibility method and terminal

Technical Field

The present application relates to the field of communications technologies, and in particular, to a CC code compatibility method and a terminal.

Background

The BTRUNC R21.64 protocol introduces an extension number type-Dialing number ext to indicate a Country Code (CC) as opposed to the R1 protocol. In the R21.64 protocol, since the group number and the emergency number given by the network side carry CC codes, the NAS protocol does not carry extension numbers, which inevitably results in incompatibility when the R21.64 protocol terminal interfaces with the R1 network.

Disclosure of Invention

The application provides a CC code compatibility method, which aims to solve the problem of incompatibility when an R21.64 protocol terminal is in butt joint with an R1 network.

The application discloses a CC code compatibility method, which is applied to trunking communication and comprises the following steps:

the terminal determines whether the current network is an R1 network or an R2 network;

if the network is R2, the terminal adds "+" before the first digit of the user number, the emergency number and the group number sent by the network side.

Preferably, the terminal determining whether the current network is the R1 network or the R2 network includes:

a terminal receives SystemInformationBlockTypeTrunking broadcasted by a base station system;

the terminal judges whether the SystemInformationBlockTypeTrunking has a network version number eNodeB Virus, and if yes, the terminal determines that the network is an R2 network currently; otherwise, it is determined that the R1 network is currently present.

Preferably, the terminal determines whether the enode bverson exists in the systemlnformationblocktypetracking in the RRC layer, and if so, notifies the NAS layer, and adds "+" to the NAS layer before the first of the user number, the emergency number, and the group number sent by the network.

The application also discloses a terminal, which is applied to trunking communication and comprises: judge module and processing module, wherein:

the judging module is used for judging whether the current network is an R1 network or an R2 network and informing the processing module of the judgment result;

and the processing module is used for adding a plus sign before the first digit of the user number, the emergency number and the group number sent by the network side when the current network is the R2 network.

Preferably, the determining module is specifically configured to:

receiving SystemInformationBlockTypeTrunking broadcasted by a base station system;

judging whether the SystemInformationBlockTypeTrunking has a network version number eNodeB Virus, and if so, determining that the current network is an R2 network; otherwise, it is determined that the R1 network is currently present.

Preferably, the judging module is located in an RRC layer of the terminal;

the processing module is positioned in the NAS layer of the terminal.

According to the technical scheme, the CC code compatibility method provided by the application comprises the steps that firstly, a terminal determines whether a current network is an R1 network or an R2 network; if the network is the R2 network, the terminal adds a plus sign before the first digit of the user number, the emergency number and the group number sent by the network side, thereby realizing the control of the use of the extension number type. By adopting the prior art, when a BTRUNC terminal of an R21.64 protocol is in butt joint with an R1 network, both a group call service and an emergency call service fail; after the improved technical scheme is adopted, when a BTRUNC terminal of an R21.64 protocol is in butt joint with an R1 network, emergency call service and group call service can be normally dialed, and therefore the problem of CC code compatibility is solved.

Drawings

FIG. 1 is a schematic diagram of a CC code compatibility method according to the present invention;

FIG. 2 is a diagram illustrating the added group information and its contents as defined in the R2 protocol;

fig. 3 is a schematic view of a structure of a terminal according to the present invention.

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.

In order to solve the problems in the prior art, the present application provides a CC code compatibility method for an R21.64 protocol terminal to interface with an R1 network, where a flow diagram of the method is shown in fig. 1, and the method includes:

step 101: the terminal determines whether the current network is an R1 network or an R2 network, and if it is an R2 network, performs step 102;

step 102: the terminal adds a plus sign before the first digit of the user number, the emergency number and the group number sent by the network side so as to control the use of the extension number type, thereby avoiding the incompatibility problem when the R21.64 protocol terminal is connected with the R1 network.

The specific method for the terminal to determine whether the current network is the R1 network or the R2 network comprises the following steps:

The technical solution of the present application will be explained in detail in several aspects below.

First, identify the network version number

The system information blocktypereporting introduces an enode bverson at R2 that can be used to identify the R2 network.

The systemlnformationblocktypetracking contains cluster-related system information.

The information contained in the systemlnformationblocktypetracking information element is as follows:

the enode bversion shown in bold italics can be used to identify the R2 network, according to the information contained in the above systemlnformationblocktypetrunkingie.

Based on this, the present invention determines whether the current network is an R1 network or an R2 network according to whether there is an enode bverson in the systemlnformationblocktypereporting.

Secondly, determining which numbers do not carry extension numbers

1. And the terminal acquires the user number and the emergency number through the cluster registration response, wherein both the user number and the emergency number must carry the CC code and do not carry the extension number IE. Table 1 shows the contents of the cluster registration response message, and the Subscriber BCD Number and Emergency Number in the table must be accompanied by CC codes.

TABLE 1 TRUNKING REGISTER ACCEPT MESSAGE CONTENT

2. The group number sent to the terminal by the core network in the group updating process is a long number, and must be provided with a CC code and not carry an extension number IE. The Country Code (CC) in the Group Number is mandatory according to table 87 and table 88 of section 9.7.21 in the R2 protocol (shown in fig. 2).

In summary, the three numbers given by the network side must carry CC codes, and do not include the extension number IE.

The definition of the extended number IE is shown in table 2:

TABLE 2

The value definition of type of number and number plan identification is shown in 3GPPTS24.008 to the definition of called party BCD number.

Processing of extension number

The three numbers all belong to the condition of 'necessarily carrying CC codes without adding extension numbers IE'.

When the R2 network is connected, the terminal modem (modem) needs to add "+" before the first of the three numbers to notify the upper layer Application (AP) that the CC code exists in the reported number.

When the R1 network is connected, the terminal modem does not need to add a plus sign before the first of the three numbers, otherwise the numbers of the terminal and the network side are not consistent.

In order to implement the above-mentioned differentiation processing, the terminal identifies the enode bverson in the system message systemlnformationblocktypereporting at the Radio Resource Control (RRC) layer, and when it is determined that the terminal is the R2 network, the terminal notifies the non-access stratum (NAS), and when the NAS processes the three numbers, the NAS adds "+" to the first of the three numbers; and when the judgment is that the network is the R1 network, the NAS layer is informed not to increase the head and the tail of the three numbers by plus.

Corresponding to the above method, the present application further provides a terminal applied to trunking communication, and its composition structure is shown in fig. 3, including: judge module and processing module, wherein:

Preferably, the determining module is specifically configured to:

Preferably, the judging module is located in an RRC layer of the terminal; the processing module is positioned in the NAS layer of the terminal.

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 national CC code compatible method is applied to trunking communication and is characterized by comprising the following steps:

2. The method of claim 1, wherein the terminal determining whether the current network is an R1 network or an R2 network comprises:

3. The method of claim 2, wherein:

the terminal judges whether eNodeB virus exists in the SystemInformationBlockTypeTrunking or not in a radio resource control RRC layer, if so, the terminal informs a non-access NAS layer, and the NAS layer adds plus before the first position of a user number, an emergency number and a group number sent by a network side.

4. A terminal, for use in trunking communication, comprising: judge module and processing module, wherein:

5. The terminal of claim 1, wherein the determining module is specifically configured to:

6. The terminal of claim 5, wherein:

the judging module is positioned at an RRC layer of the terminal;

the processing module is positioned in the NAS layer of the terminal.