CN1809207B - Method of paging information transmission between CDMA2000 1X and HRPD network - Google Patents

Abstract

A method for transmitting paging information between cdma2000 1x and HRPD networks, comprising the steps of: establishing a connection path between service servers in HRPD networks or similar network elements and cdma2000 1x; service servers in HRPD networks or similar network elements to cdma2000 The 1x network sends the service arrival information; the cdma2000 1x network notifies the HAT of the service arrival information; after the HAT receives the HRPD service arrival information, it switches to the HRPD network; after the HRPD service ends, the HAT switches back to the cdma2000 1x network. The present invention provides a paging information transmission mechanism between HRPD and cdma2000 1x network based on short message or paging message, solves the problem of frequent switching of HAT between the two networks, thereby effectively increasing the standby time of HAT. At the same time, since HRPD service options and caller information are defined in the short message or paging message used to transmit HRPD paging information, the problem that the HAT cannot know the HRPD service type and caller information under the cdma2000 1x network is solved, which is convenient User's choice of service.

Description

Paging information transfer method between cdma2000 1x network and HRPD network

technical field

The present invention relates to the switching mechanism between code division multiple access 20001x (hereinafter referred to as cdma20001x) and high-speed packet data (hereinafter referred to as HRPD) dual-mode access terminal (hereinafter referred to as HAT) between the two networks, in particular to the short message service through the cdma20001x network (hereinafter referred to as SMS), a mechanism that transmits HRPD paging information to the HAT and notifies the HAT in the cdma20001x network service state to switch to the HRPD network to receive the service.

Background technique

In practical applications, the HRPD network usually appears as a joint network with cdma20001x. Usually, the cdma20001x network is used to provide voice and low-speed data services, and the HRPD network is used to provide data-based services. Users use dual-mode terminals to access. Logically, the cdma20001x network and the HRPD network are two mutually independent networks, and current commercial networks do not support information exchange between the two networks at the network side. What is happening to one network is invisible to another network. Therefore, in order to prevent the terminal from missing the paging information from either the cdma20001x network or the HRPD network, the HAT usually uses the method of listening to the two networks in turn, that is, the HAT frequently switches between the two networks at a specific frequency to listen to the paging information from either the cdma20001x network or the HRPD network. Paging messages on the two networks.

Under the existing network, since the cdma20001x network and the HRPD network are two mutually independent networks, there is no information exchange except that the packet data core network can be shared. However, incoming calls happen randomly on the two networks. In order not to miss the paging information on either network, the HAT needs to frequently switch between the two networks to listen to the paging information of the two networks. The working module will inevitably cause a large increase in the power consumption of the HAT and shorten the standby time of the HAT. The standby time is one of the most sensitive quality indicators for users. On the other hand, when the HAT is in the service state of the cdma20001x network, because the HAT does not search the HRPD network, it cannot obtain the paging information of the HRPD network, and may miss services with higher priority from the HRPD network.

Contents of the invention

In order to solve the above problems, the purpose of this invention is to provide a method for transmitting HRPD paging information between cdma20001x and HRPD networks, reduce HAT switching times between the two networks, can set up a connection link between the two networks, and pass the link Road, transfer the incoming call information of the HRPD network to the cdma20001x network. In this way, the HAT can only listen to the cdma20001x network to know the paging information of the two networks, and only transfer to the HRPD network when receiving HRPD incoming calls or sending and receiving necessary HRPD information.

In order to achieve the above object, a method for transmitting paging information between a cdma20001x network and an HRPD network, comprising steps:

a. Establish a connection path between the service server in the HRPD network and the cdma20001x network;

b. The service server in the HRPD network sends service arrival information to the cdma20001x network;

c. The cdma20001x network notifies the service arrival information to the HAT under the cdma20001x network;

d. After the HAT receives the HRPD service arrival information, it switches to the HRPD network;

e. After the HRPD service ends, the HAT switches back to the cdma20001x network.

The present invention provides a paging information transfer mechanism between HRPD and cdma20001x network based on SMS or paging message, solves the problem of frequent switching of HAT between the two networks, thereby effectively increasing the standby time of HAT. At the same time, since HRPD service options and caller information are defined in the short message or paging message used to transmit HRPD paging information, it solves the problem that the HAT cannot know the HRPD service type and caller information under the cdma20001x network, which is convenient for users Choices for business. Even when the HAT is in the service state of the cdma20001x network, the paging information of the HRPD network can also be sent through SMS, which also solves the problem that the HAT cannot obtain the paging information of the HRPD network when the HAT is in the service state of the cdma20001x network.

Description of drawings

Fig. 1 is the cdma20001x/HRPD network structural diagram that transmits HRPD paging information to HAT by short message mode;

Fig. 2 is the cdma20001x/HRPD network structural diagram that transmits HRPD paging information to HAT by paging message mode;

Fig. 3 is cdma20001x and the HRPD paging information transfer process (short message transfer mode) between the HRPD network;

FIG. 4 is a HRPD paging information transfer flow (paging message transfer mode) between cdma20001x and HRPD networks.

Detailed ways

The invention mainly includes four parts: newly added link between cdma20001x/HRPD two networks, HRPD network service server equipment requirements, HAT equipment requirements, cdma20001x network equipment requirements.

1. New link between cdma20001x/HRPD two networks

There are two ways to deliver HRPD paging information to the HAT.

Method 1: SMS notification method

A link is established between the service server of the HRPD network and the short message control center (hereinafter referred to as SMC) of the cdma20001x network to transmit the service arrival message in the HRPD network. The business arrival message will follow the SMPP (Short Message Point-to-Point Protocol) transmission in the cdma20001x network.

The cdma20001x/HRPD network structure after the connection link is established is shown in Figure 1.

Method 2: Paging message notification method

A link is established between the service server of the HRPD network and the mobile switching center (hereinafter referred to as MSC) of the cdma20001x network to transmit the service arrival message in the HRPD network. This link can refer to the interface between the base station controller (hereinafter referred to as BSC) and MSC in the cdma20001x network, and can support the transmission of base station service request (hereinafter referred to as BS Service Request) message, and BSService Request is used to carry HRPD service arrival information.

The cdma20001x/HRPD network structure after the connection link is established is shown in Figure 2.

2. HRPD network service server equipment requirements

In order to realize the transfer of paging information between the two networks, it is necessary to modify the HRPD network equipment, and the network element mainly involved is the service server. The service server is mainly responsible for user management, service establishment, billing, service authentication and other functions in the HRPD network. During the service establishment process, after the service server completes the authentication of the calling user and the called user, it will send a paging message to the called user to notify the user to establish a service connection.

In addition to retaining the previous functions, the transformed business server needs to add the following functions:

1) The HRPD network and the cdma20001x network may use different user IDs. For HAT users, the service server needs to establish a mapping table for the user IDs of the two networks. In order to support multiple HRPD services, the mapping table may include multiple HRPD user identities.

2) After the service authentication is completed, it is necessary to send the HRPD service arrival information to the HAT through the 1x network.

If it is sent by short message, the HRPD network service server needs to construct a paging notification short message that meets the requirements of the 1x network and send it to the SMC in the 1x network. The transmission of the paging notification short message shall follow the SMPP protocol. If it is sent by paging message, the HRPD network service server needs to construct a BS Service Request message that meets the requirements of the 1x network and send it to the MSC in the 1x network.

The above paging notification short message or BS Service Request message should include the HRPD service type and the user ID under the cdma20001x of the called user and the calling information. The cdma20001x user ID is checked by the service server according to the HRPD user ID of the called user. The user ID mapping table is obtained.

3) In order to facilitate HAT judgment, the service type should also be placed in the paging notification short message (corresponding to the short message mode) or BS Service Request message (corresponding to the paging message mode), and pass the service type parameter field in the short message or The service option (Service Option) carried in the BS Service Request message. Different service type values can be defined for different types of HRPD services; if short messages are used, a service type value can also be defined to uniformly identify HRPD services, and then the specific service type identification can be defined in the SMS content.

4) In order to reduce the transformation of the cdma20001x network, if the short message mode is adopted, the interface between the service server and the SMC should follow the interface standard between the short message entity and the SMC in the cdma20001x network; if the paging message mode is adopted, the service server The interface with MSC should follow the interface standard between BSC and MSC in cdma20001x network.

3. HAT equipment requirements

In order to realize the transmission of paging information between the two networks, in addition to the HAT having to have the function of communicating with the cdma20001x network and the HRPD network respectively, the operation of the HAT also needs to add the following requirements:

1) When the HAT is in the idle state, it resides in the cdma20001x network, only when it receives a HRPD service notification short message or a paging message indicating the arrival of the HRPD service and needs to send and receive necessary HRPD information (such as receiving new system information or performing a location check). registration), the HAT will automatically switch to the HRPD network.

2) When the HAT is in the state of voice call and data communication in the cdma20001x network, if there is an HRPD service notification short message arrival, the HAT will refer to the priority of the HRPD service and perform related operations according to the operator's regulations, such as notifying the user or switching networks, etc.;

When the HAT is in the data communication state in the cdma20001x network, if a paging message indicating the arrival of the HRPD service arrives, the HAT will also refer to the priority of the HRPD service and perform related operations according to the operator's regulations, such as notifying the user or switch network, etc.;

3) The above operations do not require user participation, and HAT will automatically complete them.

4. cdma20001x network equipment requirements

The cdma20001x network needs to add the following functions to ensure the effective transmission of HRPD service notification short messages:

1) MSC, base station system (hereinafter referred to as BSS) and other equipment in the cdma20001x network should support the newly defined service type value in the short message to indicate the HRPD service;

2) In order to ensure the real-time performance of HRPD service notification information, the cdma20001x network should assign higher priority to HRPD service notification short messages.

Embodiment 1 (short message mode)

In order to support the transfer of paging information between cdma20001x and HRPD networks, each network element and HAT of the cdma20001x network and HRPD network need to follow the following message transfer process (see Figure 3).

1. The calling terminal or other network elements initiate a request to the service server in the HRPD network to establish a connection with the called terminal;

2. After receiving the service request of the calling terminal, the service server will authenticate the terminal, and after passing the authentication, send a point-to-point short message (SMDPP) to the short message center SMC in the cdma20001x network, including the HRPD service type information and the cdma20001x user ID of the called terminal and calling information. Wherein the HRPD service type information is set by the service server according to the type of the service, and the user identification under the cdma20001x is obtained by the service server according to the HRPD user identification of the called terminal in the service request message to check the user identification correspondence table of the two networks;

3. After the SMC receives the short message from the service server, it searches for the MSC/BSS where the called terminal is located according to the cdma20001x user ID of the called terminal contained in the short message, and sends the short message to the MSC/BSS;

4. The MSC/BSS short message is sent to the called terminal;

5. The called terminal sends a short message response message to the MSC/BSS;

6. The called terminal determines the next action according to the current working status and the HRPD service type carried in the short message. If it is necessary to switch to the HRPD network, it will be switched at this point;

7. The called terminal sends a connection request to the HRPD AN, and the HRPD AN and the called terminal establish a connection through information exchange;

8. Enter the packet data transmission process between the calling and called terminals;

9. After the HRPD service ends, after the HAT and the HRPD network release the corresponding resources, the HAT transfers back to the cdma20001x network.

Embodiment 2 (paging message mode)

In order to support the transfer of paging information between cdma20001x and HRPD networks, each network element and HAT of the cdma20001x network and HRPD network need to follow the following message transfer process (see Figure 4).

1. The calling terminal or other network elements initiate a request to the service server in the HRPD network to establish a connection with the called terminal;

2. After receiving the service request of the calling terminal, the service server will authenticate the terminal. After the authentication is passed, the service server constructs a base station service request message and sends it to the mobile switching center in the cdma20001x network. The message includes the HRPD service type information and the cdma20001x user ID of the called terminal and calling information. Wherein the HRPD service type information is set by the service server according to the type of the service, and the user identification under the cdma20001x is obtained by the service server according to the HRPD user identification of the called terminal in the service request message to check the user identification correspondence table of the two networks;

3. After receiving the base station service request message from the service server, the mobile switching center responds to the service server with a base station service corresponding message;

4. The mobile switching center searches the base station subsystem where the called terminal is located according to the cdma20001x user identification of the called terminal contained in the base station service request message, and sends a paging request message to the base station subsystem;

5. The base station subsystem sends a paging message to the called terminal through the paging channel;

6. The called terminal responds with a paging response message to the base station subsystem;

7. The base station subsystem constructs a paging response message, puts it into a layer 3 message, and sends it to the mobility controller;

8. The called terminal decides the next action according to the current working status and the HRP service type carried in the paging message. If handover to the HRPD network is required, it will be at this point. This step may not have a sequence relationship with step 7;

9. The called terminal sends a connection request to the HRPD AN, and establishes a connection between the HRPD AN and the called terminal through the information exchange of the response;

10. Enter the packet data transmission process between the calling and called terminals;

11. After the HRPD service ends, the HAT and the HRPD network release the corresponding resources, and the HAT transfers back to the cdma20001x network.

Claims (16)

1. a paging information delivery method between a cdma2000lx network and a high-speed packet data HRPD network, comprising steps: a. establish the connection path between the service server in the HRPD network and the cdma2000lx network; b. The service server in the HRPD network sends service arrival information to the cdma2000lx network; c. The cdma2000lx network notifies the service arrival information to the HAT under the cdma2000lx network; d. After the dual-mode access terminal HAT receives the service arrival information, it switches to the HRPD network; e. After the HRPD service ends, the HAT switches back to the cdma2000lx network. 2. The method according to claim 1, wherein the service server in the HRPD network sends the service arrival information to the cdma2000lx network by means of a short message. 3. The method according to claim 1, wherein the service server in the HRPD network sends the service arrival information to the cdma2000lx network by means of a paging message. 4. method according to claim 1, it is characterized in that as passing HRPD service arrival information by short message mode, described connection path is the connection between the service server of HRPD network and the short message control center SMC of cdma2000lx network. 5. method according to claim 1, it is characterized in that as passing HRPD service arrival information by paging message mode, described connection path is the connection between the service server of HRPD network and the mobile switching center MSC of cdma2000lx network. 6. The method according to claim 1, characterized in that said service server includes a mapping table of user identification between cdma2000lx network and HRPD network. 7. The method of claim 1, comprising: After the HAT receives the service arrival information, if it is idle, the HAT will switch to the HRPD network; If HAT is in cdma2000lx voice communication state or data communication state, HAT will decide whether to switch to HRPD network according to HRPD business type and current working state. 8. method according to claim 2, it is characterized in that after service server receives the connection request that calling terminal sends in HRPD network, structure comprises the short message of service type and called terminal cdma2000lx user identification and calling information , and sent to the short message control center of the cdma2000lx network. 9. The method according to claim 2, characterized in that said short message includes HRPD service type. 10. The method according to claim 2, wherein the cdma2000lx network sends the short message to the called terminal with a higher priority after receiving the service notification short message from the HRPD network. 11. The method according to claim 2, characterized in that each network element of cdma2000lx supports the newly defined HRPD service type value carried in the short message. 12. The method according to claim 3, characterized in that after the service server in the HRPD network receives the connection request sent by the calling terminal, it constructs a base station service that includes the service type and the called terminal cdma2000lx user identification and calling information The request message is sent to the mobile switching center of the cdma2000lx network. 13. The method according to claim 12, characterized in that the service request message of the base station includes the HRPD service type. 14. The method according to claim 3, characterized in that each network element of cdma2000lx supports the newly defined HRPD service type value carried in the paging message. 15. The method according to claim 4, characterized in that the interface between the service server and the SMC follows the interface standard between the short message entity and the SMC in the cdma2000lx network. 16. The method according to claim 5, characterized in that the interface between the service server and the MSC follows the interface standard between the base station controller and the MSC in the cdma2000lx network.

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