KR20060026301A - Hybrid mobile communication terminal and method for controlling the operation mode of the terminal - Google Patents

Abstract

The present invention relates to a hybrid mobile communication terminal, and more particularly, to a method for controlling an operation mode in different communication service boundary areas.

Attempting an acquisition of the EV-DO system in response to the change request to the hybrid operation mode; Repeatedly attempting to acquire the system when the acquisition fails of the system and checking whether the number of attempts exceeds a prescribed value; Holding the acquisition attempt of the system for a set time while operating in a 1x priority connection mode if the number of attempts exceeds a prescribed value; And retrying to acquire the EV-DO system again after the set time has elapsed.

Hybrid, acquisition, splice mode.

Description

HYBRID MOBILE COMMUNICATION TERMINAL AND METHOD FOR CONTROLLING THE OPERATION MODE OF THE TERMINAL}

1 is a diagram illustrating a monitoring cycle of a 1x system and an EV-DO system in a hybrid operation mode.

2 is a block diagram illustrating a schematic configuration of a hybrid mobile communication terminal according to an embodiment of the present invention.

3 is an operation control flowchart of a hybrid mobile communication terminal according to an embodiment of the present invention;

The present invention relates to a hybrid mobile communication terminal, and more particularly, to a method for controlling an operation mode at different communication service boundary areas.

Code Division Multiple Access (CDMA) 2000 1x service (hereinafter referred to as "1x only" service) uses the IS-95C network, which has evolved from the existing IS-95A and IS-95B networks. It is a service that enables wireless Internet speeds up to 144Kbps faster than 56Kbps.

Meanwhile, the 3rd Generation Partnership Projects (3GPP2), an international standardization organization for CDMA systems, is based on Qualcomm's High Data Rate (HDR) as a method for high-speed packet transmission, called "CDMA 2000 1x Evolution Data Optimizewd." Named and confirmed as an international standard (hereinafter referred to as “EV-DO.”) This EV-DO method defines an evolutionary method of transmitting only data in a 1x dedicated communication standard, which is a packet network dedicated to a transmission rate of up to 2.4Mbps. It provides a bidirectional high speed data service.

As described above, a mobile communication terminal capable of using both an EV-DO system and a communication service provided by a 1x dedicated system is generally called a hybrid access terminal (also referred to as a hybrid mobile terminal). When the hybrid mobile communication terminal is powered on by the user, the hybrid mobile communication terminal receives an overhead message on a paging channel, which is a control channel of a 1x dedicated system, and performs an initialization acquisition. It enters the IS-2000 access mode and performs slot operation to monitor the allocated slot of the paging channel.

Then, when the EV-DO system is out of the service area of the 1x dedicated system or acquired together, the hybrid mobile communication terminal may enter the hybrid operation mode or the EV-DO dedicated operation mode under the control of the system.

For reference, in the hybrid operation mode, the hybrid mobile communication terminal periodically monitors the allocated slots of the paging channel of the 1x dedicated system and periodically allocates the allocated slots of the control channel of the EV-DO system as shown in FIG. 1. 5.12 seconds).

As described above, when a hybrid mobile communication terminal operable in a hybrid operation mode moves from a 1x dedicated system service area (or a second generation (2G) dedicated service area) to a 1x / EV-DO mixed service area, the boundary In the region, the base station system receives a change request to the hybrid operation mode.

If there is a radio shading area at the boundary area of both service areas or a communication system fails, the probability of EV-DO system acquisition becomes low, which increases the probability of repeating the process for EV-DO system acquisition. This results in a delay in system access time and the continuous consumption of unnecessary power.

Accordingly, an object of the present invention is to selectively limit the attempt to acquire the EV-DO system according to the hybrid operation mode change request in different communication service boundary region, the operation control in the hybrid mobile terminal and the terminal that can prevent unnecessary power loss In providing a method.

Operation control method of a hybrid mobile communication terminal according to an embodiment of the present invention for achieving the above object,

In response to a request for a change to a hybrid operation mode, an acquisition of the EV-DO system is attempted. If the acquisition attempt is repeatedly failed, the EV-DO system acquisition is suspended after the EV-DO system acquisition is attempted for a set time. It is characterized by retrying.

Furthermore, the operation control method of the hybrid mobile communication terminal according to another embodiment of the present invention,

Attempting an acquisition of the EV-DO system in response to the change request to the hybrid operation mode;

Repeatedly attempting to acquire the system when the acquisition fails of the system and checking whether the number of attempts exceeds a prescribed value;

Holding the acquisition attempt of the system for a set time while operating in a 1x priority connection mode if the number of attempts exceeds a prescribed value;

And retrying the EV-DO system acquisition again after the set time has elapsed.

According to the embodiments described above, the present invention provides a system acquisition by suspending the EV-DO system acquisition attempt itself, which is continuously performed when the EV-DO system acquisition is failed due to a poor radio wave environment in the boundary area. It will have the effect of preventing the waste of power consumption due to trial.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.                     

2 is a block diagram illustrating a schematic configuration of a hybrid mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 2, the hybrid mobile communication terminal according to an embodiment of the present invention receives voice and data signals from a keypad 400, a display unit 200 displaying a menu and an operation state, and a radio signal transmitted and received through an antenna. Conventional mobile communication such as a wireless communication unit 500 for extracting, a voice input / output circuit 300 for inputting and outputting a voice call signal from the wireless communication unit 500 through a microphone and a speaker, and a control unit 100 for controlling the entire system. Configuration of the terminal.

The display unit 200 may be, for example, a display device such as a liquid crystal display device. The wireless communication unit 500 includes an antenna and an RF circuit for cellular communication with the base station.

The voice input / output circuit 300 is a well-known configuration that processes conversion of digital voice data into an analog voice signal or vice versa, and further includes an additional circuit such as an audio amplification circuit or a filter.

The baseband circuit of the wireless communication unit 500 and most of the circuits of the controller 100 to be described later are commercially provided as a single integrated circuit. This integrated circuit, commonly referred to as an MSM chip, includes dedicated hardware to process communications therein, a digital signal processor and a general purpose microprocessor. Each part constituting the control unit 100 may be configured by dedicated hardware or software or a mixture thereof, and the present invention is interpreted to cover such various VLSI implementation methods.                     

The hybrid mobile communication terminal to which the present invention is applied includes: a communication unit communicating with a first communication system supporting voice service and a low speed data service; a second communication unit communicating with a second communication system providing high speed data communication; The mode control unit 120 is included.

In an embodiment of the present invention, the first communication system is a CDMA 2000 1x service system, and the second communication system is a CDMA 2000 1x EV-DO service system. For reference, the operation mode controller 120 attempts to acquire the second communication system in response to a change request to the hybrid operation mode, and if the number of attempts exceeds the prescribed value, the operation mode control unit 120 acquires the second communication system for a preset time. Control the switching between the first communication unit and the second communication unit to retry acquiring the second communication system after withholding the attempt.

Meanwhile, as shown in FIG. 2, the controller 100 includes a voice communication unit 130 for processing a voice call and a data communication unit 110 for processing data communication. The data communication unit 110 corresponds to the first communication unit and includes a 1x communication unit 111 that processes a connection to a 1x system, and an EV-DO communication unit 113 that corresponds to the second communication unit and processes an EV-DO connection. And an operation mode controller 120 that controls switching between the two communication units.

Additionally, the operation mode controller 120 may include a counter 121 for counting the number of attempts to acquire the second communication system, more specifically, an EV-DO system, a time for holding the EV-DO system acquisition attempts, That is, it includes a timer 123 for counting a preset time, and a selection controller 125 for selectively controlling the communication units 111 and 113 according to counting output information of the counter 121 and the timer 123. The timer 123 is reset to acquisition retry of the temporarily suspended EV-DO system.

Hereinafter, an operation control method of the hybrid mobile communication terminal having the above-described configuration will be described with reference to FIG. 3.

3 is a flowchart illustrating an operation control of a hybrid mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 3, first, when a hybrid mobile communication terminal in an idle state operating in a 1x preferred connection mode moves to a 1x / EV-DO mixed service area, a paging channel which is a control channel of a 1x dedicated system An overhead message propagated through the paging channel receives a change request to the hybrid operation mode (step 610).

When there is such a change request to the hybrid operation mode, the operation mode controller 120 attempts to acquire the EV-DO system in response to the expiration of the EV-DO timer (not shown). That is, a pilot signal is acquired by searching a pilot channel of the EV-DO system. If the terminal user is located at the boundary of the 1x dedicated system service area (or 2G (2G) dedicated service area) and the 1x / EV-DO mixed service area, the radio shadowing area exists at the boundary area or communication system failure. For example, a situation in which a normal pilot signal cannot be received from a terminal point of view may occur.

As such, when the pilot signal of the EV-DO system is not normally received and the system acquisition fails (step 620), the operation mode control unit 120 repeatedly attempts to acquire the EV-DO system. As described above, an attempt to acquire the EV-DO system is up counted by the counter 121 and the value is applied to the selection controller 125.

On the other hand, the selection control unit 125 of the operation mode control unit 120 compares the counting value applied from the counter unit 121, that is, the number of acquisition attempts of the EV-DO system, with a predetermined value. If the number of acquisition attempts of the EV-DO system exceeds the prescribed value (step 630), it is determined that the terminal is located in a poor radio wave environment (border area) and temporarily suspends the acquisition attempt of the EV-DO system (step 640). As described above, while the acquisition attempt of the EV-DO system is temporarily suspended, the hybrid mobile communication terminal operates in the 1x priority connection mode. In order to count the holding time, the selection controller 125 newly drives the timer 123 and the counter. The unit 121 must be reset.

As described above, when an attempt to acquire an EV-DO system is temporarily suspended, the selection control unit 125 then checks whether the time counting value driven by the timer 123 exceeds a preset hold time even when the EV-DO system is acquired. (Step 650). If the hold time counting value exceeds the preset time, the selection controller 125 returns to step 610 again to check whether there is a change request of the hybrid operation mode and retry acquisition of the EV-DO system in response thereto.

If the terminal leaves the radio shading area or the radio environment is poor due to the movement of the user, the pilot signal of the EV-DO system may be normally acquired in the EV-DO system acquisition retry.                     

Therefore, the present invention, if the failure to repeatedly acquire the EV-DO system due to poor radio environment in different communication service boundary areas, the subsequent attempts to acquire the EV-DO system that is continuously performed for a certain period of time by no longer unnecessary The power consumption can be prevented in advance.

As described above, when the EV-DO system cannot be normally acquired due to poor radio environment in different communication service boundary areas, the present invention is unnecessary by suspending the acquisition attempt of the EV-DO system until it exits the radio environment. There is an advantage to prevent power loss.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. For example, in the embodiment of the present invention, when the number of attempts to acquire the EV-DO system exceeds the prescribed value, the acquisition attempt of the system is temporarily suspended. However, even when the EV-DO system cannot be acquired for a predetermined time. The acquisition attempt of the system can be temporarily suspended. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (6)

In the operation control method of a hybrid mobile communication terminal, In response to the request to change to the hybrid operation mode, an acquisition of the EV-DO system is attempted, and if the acquisition attempt fails repeatedly, the EV-DO system acquisition is suspended after the acquisition attempt is suspended for a set time. Operation control method of a hybrid mobile communication terminal, characterized by retrying. The method of claim 1, wherein the control is performed to operate in a 1x priority access mode while the acquisition attempt of the EV-DO system is suspended. In the operation control method of a hybrid mobile communication terminal, Attempting an acquisition of the EV-DO system in response to the change request to the hybrid operation mode; Repeatedly attempting to acquire the system when the acquisition fails of the system and checking whether the number of attempts exceeds a prescribed value; Holding the acquisition attempt of the system for a set time while operating in a 1x priority connection mode if the number of attempts exceeds a prescribed value; And retrying to acquire the EV-DO system again after the set time has elapsed. A hybrid mobile communication terminal comprising a first communication unit communicating with a first communication system supporting a voice service and a low speed data service, and a second communication unit communicating with a second communication system providing high speed data communication. In response to a request for a change to a hybrid operation mode, an attempt is made to acquire the second communication system, and if the number of attempts exceeds a prescribed value, the acquisition attempt of the second communication system is suspended after a preset time period. And an operation mode control unit controlling switching between the first communication unit and the second communication unit to retry acquisition. The method of claim 4, wherein the operation mode control unit; A counter unit for counting the number of attempts to acquire the second communication system; A timer for counting the set time; And a selection control unit for selectively controlling the communication units according to the counting output information of the counter and the timer. The hybrid mobile communication terminal according to claim 4 or 5, wherein the first communication system is a CDMA 2000 1x system and the second communication system is a CDMA 2000 1x EV-DO system.

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