CN1984399B - Terminal handed over to HRPD network according to cdma2000 paging message - Google Patents

Abstract

The method comprises: control module for controlling each correlated module in the terminal; cdma2000 modem; HRPD modem; storage unit for saving the data required the operation; switch unit for connecting the radio module to cdma2000 modem or HRPD modem; radio module connected to the modem through switch unit for making switch between baseband digital signals and RF analog signals, and transmitting and receiving the RF analog signals through antenna; a display unit; wherein, the control module is used for controlling the radio module to connect to the cdma2000 modem or to connect to HRPD modem.

Description

Terminal handed over to HRPD network according to cdma2000 paging message

technical field

The present invention relates to a mobile terminal, in particular to a terminal that switches to a High Speed Packet Data (hereinafter referred to as HRPD) network according to a Code Division Multiple Access 2000 1x (hereinafter referred to as cdma2000) paging message.

Background technique

In practical applications, the HRPD network usually appears as a joint network with cdma2000. Usually, the cdma2000 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, cdma2000 network and HRPD network are two mutually independent networks. Currently, the cdma2000/HRPD dual-mode terminal (hereinafter referred to as HAT) is usually used to listen to the two networks in turn in the non-voice state, that is, the HAT frequently switches between the two networks at a specific frequency to listen to paging from the two networks information. Each switch needs to start the corresponding working module, which will inevitably cause a large increase in the power consumption of the HAT and shorten the standby time of the HAT.

Since the current dual-mode terminals need to switch frequently between the two networks during use, the following problems arise:

1. Terminal standby time is short;

Frequent switching and listening between the two networks increases power consumption.

2. Service quality is affected

For example, when the terminal performs data services under the cdma2000 network, the ongoing services will be affected due to the need to listen to the HRPD network regularly.

In addition, when the terminal is in the voice state under the cdma2000 network, the terminal does not listen to the HRPD network, thus missing the call information of the HRPD network.

Contents of the invention

In order to solve the above-mentioned problems, the present invention provides a method for implementing a terminal that switches to the HRPD network according to the cdma2000 paging message. The HAT can only listen to the cdma2000 network to learn the paging information of the HRPD network, which can prevent the terminal from being in the two networks. Frequent switching and monitoring between the two networks, reducing the number of HAT switching between the two networks.

The premise of using this terminal is that a connection link between the two networks needs to be established in advance, and through this link, the incoming call information of the HRPD network is transmitted to the cdma2000 network.

In order to achieve the above purpose, a terminal that switches to the HRPD network according to the cdma2000 paging message is provided, including: a control module, used to control various related modules in the terminal; a cdma2000 modem, used for sending and receiving cdma2000 signals on the air interface , to process the signal; the HRPD modem is used to process the signal for the transmission and reception of the HRPD signal on the air interface; the memory is used to store the data required for the terminal to work; the switching part is used under the control of the control module , connect the wireless module to the cdma2000 modem or the HRPD modem; the wireless module is connected to the modem through the switching part, and is used for the conversion of the baseband digital signal and the radio frequency analog signal, and receives and sends the radio frequency analog signal through the antenna; the display unit is used for Various messages and icons are displayed; wherein the control module controls the wireless module to complete the conversion from connecting with the cdma2000 modem to connecting with the HRPD modem through the switching unit.

The invention provides a dual-mode mobile terminal capable of switching to the HRPD network according to the cdma2000 paging message, which solves the previous dual-mode mobile terminal's frequent interception between networks and other problems caused by it, thereby effectively increasing the HAT Standby time.

Description of drawings

FIG. 1 is a structural block diagram of a dual-mode terminal according to an embodiment of the present invention;

Fig. 2 is the HRPD service arrival information transfer process based on the cdma2000 paging message;

3 is a schematic diagram of a display screen and a keyboard for network switching by a dual-mode terminal proposed according to the present invention;

Figure 4 is a connection control diagram between the modem and the wireless module.

Detailed ways

The main purpose of the present invention is to realize the cdma2000/HRPD dual-mode terminal, which is characterized in that the terminal can receive the paging message indicating the arrival of HRPD service from the cdma2000 network, and switch to the HRPD network according to the instruction of the paging message.

In order to support switching to the HRPD network according to the instructions of the cdma2000 network, the parts included in the dual-mode terminal and the basic functions that each part should complete are as follows:

Antenna 101

Used to receive and send wireless signals.

Wireless Module 102

Responsible for the conversion of baseband digital signals and radio frequency analog signals, the transmission and reception of radio frequency analog signals, etc., the wireless module is connected to the modem through the switching unit 103 .

Exchange parts 103

The switching unit is controlled by the signal from the control module 106, and connects the wireless part to the cdma2000 modem 104 or the HRPD modem 105 respectively.

cdma2000 modem 104

Its functions include coding and decoding of cdma2000 service data and signaling, spreading and despreading, modulation and demodulation of physical channels.

HRPD Modem 105

In the implementation, it is usually a physical entity with the cdma2000 modem. However, what is performed is the encoding and decoding of HRPD service data and signaling, the spreading and despreading, modulation and demodulation of the physical channel, and the software modules carried on it correspond to the HRPD network. At a certain moment, only one of the cdma2000 modem and the HRPD modem can be in working condition.

Control Module 106

This module controls the overall operation of each component, provides a running platform for the application layer software in the terminal, carries the application software module, completes the sending, receiving and processing of the air interface signaling, the control of the call process, etc., and controls the various related modules in the terminal Take control so that it can work together. The control module will also control the wireless module to switch from being connected with the cdma2000 modem to being connected with the HRPD modem through the switching unit. For example, the control module decides whether to switch from the cdma2000 modem to the HRPD modem according to conditions such as the clock, HRPD service information parsed from the cdma2000 paging message, and user commands. When switching to the HRPD modem, the wireless module, memory, display unit, keyboard and other components are all coordinated with the HRPD modem. At this time, it is equivalent to the dual-mode terminal accessing the HRPD network.

memory 107

The data storage module in the terminal stores data necessary for the normal operation of the terminal.

display unit 108

The display unit generally includes a liquid crystal display, etc., and can display various messages, icons, etc. under the control of the control module.

keyboard 109

It is used to input information, transmits the information input by the user to the control module, and completes the interface function between the user and the terminal together with the display unit, speaker, and microphone. In the present invention, the keyboard may further include an answer key for accepting the inter-network handover instruction issued by the network and a reject key for rejecting the inter-network handover instruction issued by the network. In implementation, these two keys may also be physically arranged in combination with other function keys on the terminal under the premise that the user will not be confused.

speaker 110

It is used to output sound, such as prompt tone, etc.

Power Module 111

Provide power to each module.

In addition, there should be a microphone, etc., which are not shown in the figure.

During a normal call initiation process, the user sends a command to the control module 106 through the man-machine interface formed by the keyboard 109 and the display unit 108 to start a call. After receiving the user's instruction, the control module 106 decides whether to perform network switching according to the service type indicated by the user and the preset settings, and starts the corresponding control and processing module. Correspondingly, the control module 106 also activates cdma2000 according to the selected network. The modem 104 or the HRPD modem 105 acts as a processing unit, constructs a signaling message, completes call establishment together with the network, and notifies the user through the display unit 108 or the speaker 110 . Afterwards, the user can start the call process, and the user's voice is sent to the cdma2000 modem 104 or HRPD modem 105 through the microphone to complete coding and modulation, and then sent to the network. At the same time, the cdma2000 modem 104 or the HRPD modem 105 will also demodulate and decode the received wireless channel frame, and send it to the receiver. During this process, the control module 106, the wireless module 102, the memory module 107 and the power module 111 will provide necessary support for it.

Under the cdma2000 network, the terminal antenna receives the wireless signal from the cdma2000 network and transmits it to the wireless module. The wireless module processes the signal and transmits it to the modem. After the modem completes demodulation, it transmits it to the control module. The control module analyzes the signal. If It is a special paging message representing the HRPD service. The control module presents relevant information to the user through the display unit, and at the same time prompts the user to choose whether to switch to the HRPD network through a speaker or other man-machine interface, and the user inputs the selection command through the keyboard. If the user presses the rejection key, the input controller will maintain the connection between the cdma2000 modem and the wireless module; if the user presses the answer key, the input controller disconnects the connection between the cdma2000 modem and the wireless module through the switching module, and establishes the connection between the HRPD modem and the wireless module.

As shown in Figure 2, the message delivery process for the dual-mode terminal to switch to the HRPD network after receiving the cdma2000 special paging message is as follows:

1. After receiving the service request from the calling terminal, the HRPD network will construct the base station service request message and send it to the mobile switching center in the cdma2000 network, including the HRPD service type information and the user identification of the called terminal in the message;

2. After receiving the base station service request message from the HRPD network, the mobile switching center responds to the HRPD network with a base station service response message;

3. The mobile switching center searches the base station subsystem where the called terminal is located according to the cdma2000 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;

4. The base station subsystem sends a special paging message to the called terminal through the paging channel. The special paging message may set its service selection unit to a special value to indicate that the paging is a general paging message from the HRPD network ;

5. If required by the base station subsystem, the called terminal also responds to the base station subsystem with a paging response message; otherwise, skip to step 7;

6. The base station subsystem constructs a paging response message, puts it into a layer 3 message, and sends it to the mobile switching center;

7. The called terminal decides to switch to the HRPD network according to the current working status and the HRPD service type carried in the special paging message. This step has no chronological relationship with step 6;

8. The called terminal sends a connection request to the HRPD AN, and establishes a connection between the HRPD AN and the called terminal through corresponding information exchange.

In the above step 7, the called terminal may analyze the call message and send a prompt to the user through a speaker, a display, etc., so that the user can make a judgment on whether to switch. It is also possible to set the judgment mechanism in the terminal in advance, and the terminal will automatically operate it.

Fig. 3 shows a schematic diagram of a display screen and a keyboard of a dual-mode terminal to cooperate with the above process. The dual-mode terminal displays HRPD service information from the cdma2000 network on the screen, and an answer key 301 and a reject key 302 are added to the keyboard.

In the present invention, when the dual-mode terminal accesses the cdma2000 network, including being in an idle state or a service-going state, if the dual-mode terminal receives the paging information representing the HRPD service sent by the cdma2000 network, the dual-mode terminal will respond to the paging information Process and notify the user that there is a new call. The user can make a selection by pressing the answer key or the reject key. The dual mode terminal determines whether the user has pressed the answer key or the reject key, and then performs an operation corresponding to the pressed key. If the user presses the answer button, the dual-mode terminal will exit the cdma2000 network, access the HRPD network and respond to the call. If the user presses the rejection key, the dual-mode terminal will stay in the cdma2000 network and construct a rejection message to send to the cdma2000 network or simply ignore the incoming call.

In the above handover process, for the convenience of the user, after receiving the paging information indicating the HRPD service sent by the cdma2000 network, the dual-mode terminal can also decide whether to switch to another network according to the settings made by the user in advance, and Eliminate the step of user involvement. The preset can be set by the user, or can be set by the terminal manufacturer before leaving the factory. The preset content can be the priority level of the service, whether a certain service can be interrupted, etc. At this time, the dual-mode terminal no longer needs the answer key 301 and the reject key 302 shown in FIG. 3 .

Claims (5)

1. One kind according to the cdma2000 beep-page message to the terminal that the HRPD network switches, comprising:

   Control module is used for each correlation module in the control terminal;

   The cdma2000 modulator-demodulator is used at the transmission and the reception of interface aloft of cdma2000 signal signal being handled;

   The HRPD modulator-demodulator is used at the transmission and the reception of interface aloft of HRPD signal signal being handled;

   Memory is used for the required data of storage terminal work;

   Replacement part is used under the control of control module, is connected on the cdma2000 modulator-demodulator wireless module or the HRPD modulator-demodulator;

   Wireless module links to each other with modulator-demodulator by replacement part, is used for the conversion of baseband digital signal and radio frequency analog signal, and receives and send radio frequency analog signal by antenna;

   Display unit is used to show various message, icon;

   Be used to import the keyboard of various instructions, described keyboard comprises and is used to accept answer the refusal key that key and refusal switch to the HRPD network to what the HRPD network switched; Described control module is controlled wireless module by replacement part and is finished by being connected to and conversion between the HRPD modulator-demodulator is connected with the cdma2000 modulator-demodulator; Wherein, behind the beep-page message that parses expression HRPD business, whether control module is presented to the user to relevant information by display unit, point out the user to select to switch to the HRPD network simultaneously; If the user pushes the refusal key on the keyboard, then control module keeps being connected of cdma2000 modulator-demodulator and wireless module; Answer key if the user pushes, then control by replacement part and disconnect being connected of cdma2000 modulator-demodulator and wireless module, set up being connected of HRPD modulator-demodulator and wireless module;

   Wherein, described beep-page message is that its services selection unit is changed to predetermined value to represent that this paging is the professional general beep-page message that arrives of expression HRPD.
2. 2. by the described terminal of claim 1, it is characterized in that when receiving described beep-page message that described control module determines whether to switch to the HRPD net according to setting in advance wherein.
3. 3. by the described terminal of claim 1, it is characterized in that other function keys of will answer on key and refusal key and the terminal merge.
4. 4. by one of claim 1-2 described terminal, it is characterized in that replying refusal information or ignoring this incoming call to the cdma2000 network when determining refusal when the HRPD network switches.
5. 5. by the described terminal of claim 1, it is characterized in that described cdma2000 modulator-demodulator and HRPD modulator-demodulator at a time can only have one in running order.

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