CN1310534C - Method for controlling multimode terminal switch-in - Google Patents

Abstract

The invention discloses a method for controlling the access of a multi-mode terminal. The method includes: A. Presetting the priority of the communication network in the multi-mode network; The mode terminal detects the signal of the communication network with the highest priority at present, and judges whether the signal of the communication network is detected. If it is detected, then execute step E, otherwise, execute step D; D. Judging whether there is still a communication network in the multimode network Not detected, if there is still, then take the next level of communication network as the communication network with the highest current priority, and perform step C, otherwise, end this method; E. The multi-mode terminal accesses the communication network, and judges whether the access is successful , if the access is successful, stay in the cell of the communication network and wait for the service signal; otherwise, execute step D. The method of the invention can quickly access the network, save the power consumption of the multi-mode terminal, and improve the standby time and talk time of the battery of the terminal.

Description

A method for controlling multi-mode terminal access

technical field

The invention relates to an access technology of a wireless communication system, in particular to a method for controlling access of a multi-mode terminal.

Background technique

At present, people's requirements for communication systems are getting higher and higher, and users' requirements for services are also constantly increasing. Therefore, the wireless communication system has developed from the analog communication system of frequency division multiple access (FDMA) to the third generation mobile communication system (3G), and the supported services have gradually developed from pure voice services to the current mixed services of data and voice. Up to high-speed data services.

The second generation mobile communication system (2G) provides basic voice services and some simple message services. For dynamic and real-time data services, its data bandwidth cannot meet the requirements of service quality. Although the 2.5th generation mobile communication system has appeared, For example, the GPRS system has no essential improvement in its data bandwidth capabilities. For video services such as videophones, its business service quality cannot be guaranteed on 2G or 2.5G; the third-generation mobile communication system, with its data bandwidth , data business processing ability and other characteristics meet a large number of data business service quality requirements, so the system has been developed; in a long period of time in the future, the second generation mobile communication system will coexist with the third generation mobile communication system .

Even if two generations of mobile communication systems coexist, in most cases, the coverage areas of 2G and 3G will overlap. In order to ensure communication anytime and anywhere, the terminal is required to support both 2G communication and 3G communication. This is usually referred to as a dual-mode terminal. In general, a dual-mode terminal includes the transceiver processing of a 2G terminal at the same time. Unit and 3G terminal transceiver processing unit, terminal casing, terminal keyboard, terminal display, receiver and transmitter, battery, etc.

Traditional terminals that support 2G communication, such as GSM mobile phones, have relatively low power consumption during communication due to their simple processing protocols and the characteristics of GSM using time-division communication. In the third generation mobile communication system, due to the use of CDMA communication technology, wide frequency range, and generally low power efficiency of radio frequency, and the complexity of the entire 3G communication protocol, 3G mobile phones consume relatively large power consumption; under the same battery capacity, The talk time and standby time of 2G mobile phones are longer than that of 3G mobile phones. In addition, the main feature of the 3G mobile communication system network is reflected in the data service processing capability, while the 2G mobile communication network is already very mature in the voice service. If the two mobile communication networks can be organically combined for operation and management to achieve complementary advantages, It can achieve remarkable results in ensuring the quality of business service and improving the overall capacity of the network.

Referring to Figure 1, the specific process of controlling dual-mode terminal access in the prior art is as follows:

Steps 101-102: After the dual-mode terminal is turned on, it performs a power-on self-test, and after the self-test is completed, step 103 is performed.

Step 103: The dual-mode terminal activates the receivers of the 2G and 3G terminals at the same time, and measures the signals of all neighboring GSM and WCDMA network cells.

Step 104: the dual-mode terminal evaluates and sorts all measurement results.

Step 105: the dual-mode terminal selects the cell with the strongest signal to access.

Step 106: The dual-mode terminal judges whether the access is successful, if not, select the next cell with strong signal to access, return to step 106, otherwise, execute step 107.

Step 107: camp on the cell and enter an idle state.

It can be seen from the above process that when the dual-mode terminal is turned on in the prior art, the terminal transceivers of 2G and 3G will be turned on at the same time to search the network, and then according to the search results, the cell of the 2G and 3G systems where the dual-mode terminal is located and the corresponding The signal strength of base stations in adjacent cells is searched in sequence, and a base station with the strongest signal is found for access. The advantage of this method in the prior art is that it can find the base station with the strongest signal for access, ensuring the success rate of access. Its disadvantage is that it takes a long time to search and compare the signal strength of all base stations of 2G and 3G systems. At the same time, the result of this free search does not guarantee that voice services can be provided in both 2G and 3G networks. , the dual-mode terminal preferentially uses the 2G voice network. In addition, in the prior art, after the dual-mode terminal is powered on for self-test, all internal transceivers must be started at the same time to detect the signal of the corresponding network, but since the measurement of the signal can only be performed serially, there must be a terminal transceiver to work. The other terminal transceiver is waiting, and the waiting terminal transceiver will also consume a certain amount of energy because it has already been started.

In summary, the prior art has the following disadvantages:

(1) To search, measure and compare all 2G networks and 3G networks, it takes a long time to complete the residency until the network enters the idle state;

(2) When there is 2G network coverage and 3G network coverage, the 2G network cannot be preferentially selected as the resident network;

(3) Both the 2G transceiver and the 3G transceiver in the dual-mode terminal are turned on, and the power consumption of the whole machine is relatively large, which will damage the talk time and standby time of the battery of the terminal.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method for controlling the access of a multi-mode terminal so that it can quickly access the network.

A method for controlling multi-mode terminal access provided by the present invention includes:

A. Preset the priority of the communication network in the multimode network;

B. After starting up, the multi-mode terminal performs power-on self-test;

C. The multi-mode terminal detects the signal of the communication network with the highest current priority, and judges whether the signal of the communication network is detected, and if detected, executes step E, otherwise, executes step D;

D. Judging whether there is still a communication network in the multimode network that has not been detected, if there is, then take the next-level communication network as the communication network with the highest current priority, and perform step C, otherwise, the access fails, and the method ends;

E. The multi-mode terminal accesses the communication network, and judges whether the access is successful, and if the access is successful, resides in the cell of the communication network and waits for a service signal, otherwise, executes step D.

The multi-mode terminal may be a dual-mode terminal supporting the second generation mobile communication system and the third generation mobile communication system.

The priority of the second generation mobile communication system is higher than that of the third generation mobile communication system.

The second generation mobile communication system is a GSM system, and the third generation mobile communication system is a WCDMA system, then

When the communication network cell where the multi-mode terminal resides in step E is a GSM cell, after waiting for the service signal in step E, it further includes: when initiating a voice or message service, the multi-mode terminal directly proceeds in the manner of the GSM network;

When the communication network cell where the multi-mode terminal resides in step E is a WCDMA cell, after waiting for the service signal in step E, it further includes: when initiating a voice or data service, the multi-mode terminal performs business in the service mode of the WCDMA cell, After completing the business, re-select GSM cell access;

When the communication network cell where the multi-mode terminal resides in step E is a GSM cell, after waiting for the service signal in step E, it further includes: when initiating a data service, the multi-mode terminal accesses the signal with the strongest signal through the cell reselection process The WCDMA cell in the WCDMA cell performs data services, and after the data service is completed, through the cell reselection process, the GSM cell is preferentially reselected as the resident cell.

In step C, there is only one communication network with the highest priority currently.

After successful access in step E, the method may further include: when the user initiates a service corresponding to the access network, directly use the service mode corresponding to the access network to perform the service, and perform step C after completing the service.

After successful access in step E, the method may further include: when the user initiates a service corresponding to the non-access network, the multimode terminal performs cell reselection, accesses the reselected cell, and conduct business in the cell, and then perform step C.

The detection of the signal of the communication network with the highest current priority as described in step B is realized by starting the corresponding communication network transceiver inside itself;

If the access is not successful in step E, before step D is executed, the method includes: the multi-mode terminal turns off its corresponding internal communication network transceiver.

As can be seen by the above method, the present invention has the following advantages and characteristics:

(1) Since most of the communication services of the user are voice and message communication services, the present invention can enable the user to preferentially stay in the GSM community by presetting the priority of the communication network in the multimode network to ensure that the main voice The business is provided through the GSM network, and the data service is provided by the WCDMA network, and the respective characteristics of the GSM network and WCDMA are used to improve the overall capacity of the entire GSM network and WCDMA network;

(2) Since the GSM cell can be preferentially camped in, the main voice service is guaranteed to be provided by the GSM terminal transceiver of the dual-mode terminal, and the processing power consumption of the GSM terminal transceiver is dozens of times lower than that of the WCDMA terminal transceiver times, so the application of the method of the present invention can greatly save the power consumption of the dual-mode terminal during the voice service, and improve the standby time and talk time of the terminal battery;

(3) Because the method of the present invention can make the GSM terminal transceiver and the WCDMA transceiver start alternately in the dual-mode terminal, and in the sub-district covered by GSM, the idle state of the dual-mode terminal is the GSM terminal transceiver working state, and the WCDMA terminal The transceiver is turned off, which can greatly save the power consumption of the terminal, and improve the standby time and talk time of the dual-mode terminal.

Description of drawings

FIG. 1 is a schematic diagram of a specific process for controlling dual-mode terminal access in the prior art;

Fig. 2 is the concrete flow chart diagram realizing the method of the present invention;

Fig. 3 is a schematic flow chart of a specific embodiment for realizing the method of the present invention.

Detailed ways

The core content of the present invention is: to pre-set the priority of the communication network in the multi-mode network; after the multi-mode terminal is powered on and completes the power-on self-test, it detects the signal of the communication network with the highest current priority, and judges whether the communication network is detected If the signal is detected, it will access the communication network and stay in the cell of the communication network to wait for the service signal; otherwise, it will detect the signal of the next-level communication network until it is connected to the communication network. Here, there can only be one communication network at each level, so when the multi-mode terminal detects network signals, it only needs to activate the transceiver corresponding to one communication network at the same time. Here, the multi-mode terminal is a terminal that supports at least two or more mobile communication systems, such as a second-generation mobile communication system and a third-generation mobile communication system.

Referring to shown in Figure 2, realizing the method of the present invention comprises the following steps:

Step 201: Preset priorities of communication networks in the multimode network.

Step 202: The multi-mode terminal performs power-on self-test after being turned on.

Step 203: The multi-mode terminal detects the signal of the current communication network with the highest priority, and judges whether it can access the communication network. If yes, execute step 205; otherwise, execute step 204.

Step 204: Determine whether there are still communication networks in the multi-mode network that have not been detected. If there are, take the next-level communication network as the communication network with the highest current priority, and perform step 203. Otherwise, the access fails and skips this process . Since there can only be one communication network at each level, there is only one communication network with the highest priority for each detection.

Step 205: The multi-mode terminal accesses the communication network, and judges whether the access is successful, and if the access is successful, resides in a cell of the communication network and waits for a service signal; otherwise, executes step 204.

The technical solution of the present invention will be specifically described below with reference to the accompanying drawings and by taking a dual-mode network including 2G and 3G as an example.

In this embodiment, the priority of 2G is set higher than that of 3G, that is, in an area where both 2G network and 3G network exist, the dual-mode terminal preferentially accesses the 2G network. For example, the 2G network is a GSM network, and the 3G network is a WCDMA communication network. After the user completes the power-on self-test, the user is preferentially connected to the GSM network, and then initiates a voice call, and then provides voice services through the GSM network; and when the user initiates a data service call, establishes a link with the 3G network, and then can provide Data business service function.

Referring to Fig. 3, the specific implementation process of controlling dual-mode terminal access in this embodiment is as follows:

Steps 301-302: After the dual-mode terminal is turned on, it first completes the power-on self-check to ensure that the terminal software and hardware work normally.

Step 303: The dual-mode terminal activates the transceiver of the GSM terminal to detect the signal of the GSM network, and judges whether the signal of the GSM network is detected, and if detected, executes step 304; otherwise, executes step 305. Here, the transceiver of the WCDMA terminal is turned off.

Step 304: The dual-mode terminal accesses the GSM network, and judges whether the access is successful. If the access is successful, it stays in an idle state in the GSM cell and waits for service initiation. If the access is not successful, then execute step 305.

Step 305: Turn off the transceiver of the GSM terminal, start the transceiver of the WCDMA terminal to detect the signal of the WCDMA network, judge whether the signal of the WCDMA network is detected, if it is received, then perform step 306, otherwise, jump out of this process.

Step 306: The dual-mode terminal accesses the WCDMA network, and judges whether the access is successful. If the access is successful, it resides in the WCDMA cell, is in an idle state, and waits for the initiation of the service. Otherwise, the power-on access fails and prompts User no service network.

When the dual-mode terminal enters the idle state and waits for service initiation, according to the current situation of the cell where it resides, the process of service establishment has the following situations:

The first case: when the terminal resides in the GSM cell, if the user initiates a voice service and a basic message service, the GSM terminal transceiver is used to communicate with the GSM network. The implementation process is the same as the current GSM communication process. After the service ends, the dual-mode terminal still resides in the GSM cell.

The second case: when the dual-mode terminal resides in the GSM cell, if the user initiates a data service, the dual-mode terminal first switches from the GSM cell to the WCDMA cell to complete cell reselection. After successful cell reselection, complete the data service access process in the WCDMA cell, and stay in the GSM cell after the service ends.

The third case: when the dual-mode terminal resides in a WCDMA cell, since the WCDMA system can also provide the same service functions as the GSM system, any service initiated by the user can be accessed in the current WCDMA cell , when the service ends, it can still reside in the GSM cell through cell reselection.

During the cell reselection process, the dual-mode terminal should reselect to GSM first. The implementation process is similar to the access control method at startup, except that in the process of cell reselection, the signal evaluation is performed on the GSM cell before the service is initiated, and if the cell meets the residency requirements, it will directly reside in the GSM cell In the process, if the residency requirements are not met, evaluate the signals of the surrounding GSM cells and find an optimal GSM cell to reside on. Of course, if there is no suitable GSM to reside in, then turn off the GSM terminal transceiver, start the WCDMA terminal transceiver, evaluate the signal of the WCDMA cell, and find an optimal WCDMA network cell to reside in.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (8)

1, a kind of method of controlling the multimode terminal access is characterized in that this method may further comprise the steps:

A. set in advance communication network priority in multi-mode network;

B. the multimode terminal after the start carries out power-on self-test;

C. multimode terminal detects the signal of the highest communication network of current priority, judges whether to detect the signal of this communication network, if detect, and execution in step E then, otherwise, execution in step D;

D. judge in the multimode network that whether to also have communication network not have detected,, then take off the one-level communication network as the highest communication network of current priority if also have, execution in step C, otherwise, access failure, method ends;

E. multimode terminal inserts this communication network, judges whether to insert successfully, if insert successfully, then resides in latency services signal in the sub-district of this communication network, otherwise, execution in step D.

2, method according to claim 1 is characterized in that, described multimode terminal is for supporting the dual-mode terminal of second generation mobile communication system and 3-G (Generation Three mobile communication system).

3, method according to claim 2 is characterized in that, the priority of described second generation mobile communication system is higher than 3-G (Generation Three mobile communication system).

4, method according to claim 3 is characterized in that, described second generation mobile communication system is a gsm system, and described 3-G (Generation Three mobile communication system) is the WCDMA system, then

When the resident communication network sub-district of the described multimode terminal of step e is the GSM sub-district, further comprise after the described latency services signal of step e: when initiating voice or messaging service, multimode terminal directly carries out according to the mode of GSM network;

When the resident communication network sub-district of the described multimode terminal of step e is the WCDMA sub-district, further comprise after the described latency services signal of step e: when initiating voice or data service, multimode terminal carries out business with the trafficwise of this WCDMA sub-district, after finishing business, reselect the GSM sub-district and insert;

When the resident communication network sub-district of the described multimode terminal of step e is the GSM sub-district, further comprise after the described latency services signal of step e: when initiating data service, multimode terminal passes through cell reselection process, be linked into the strongest WCDMA sub-district of signal, carry out data service, and after finishing data service,, preferentially reselect the GSM sub-district as persistent district by cell reselection process.

5, method according to claim 1 is characterized in that, the communication network that current priority is the highest described in the step C has only one.

6, method according to claim 1 is characterized in that, after step e inserts successfully, this method further comprises: when the user initiates the pairing business of access network, directly utilize institute's access network corresponding service mode to carry out business, and after finishing business, execution in step C.

7, method according to claim 1, it is characterized in that, after step e inserts successfully, this method further comprises: when the user initiates the pairing business of non-access network, this multimode terminal carries out the sub-district gravity treatment, sub-district after the access gravity treatment, and carry out business, execution in step C then in the sub-district after gravity treatment.

8, method according to claim 1 is characterized in that, the signal that detects the highest communication network of current priority described in the step B is by starting self inner corresponding communication network transceiver implementation;

If do not insert successfully in step e, before execution in step D, this method comprises: multimode terminal is closed self inner corresponding communication network transceiver.

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