CN102573022A - Method and device for saving power for mobile terminal - Google Patents

Abstract

The invention discloses a method and a device for saving power of a mobile terminal, and aims to provide a method and a device for saving power when using an instant messaging tool on a mobile terminal. The main points of its technical solution are: after the mobile terminal starts the instant messaging application software, set the reference value of the paging cycle; judge whether it is necessary to initiate a paging cycle negotiation process; if necessary, use the SPLIT_PG_CYCLE value corresponding to the reference value of the paging cycle as GPRS parameters are loaded into the attach request message, and the mobile terminal negotiates a paging cycle with the network; after the negotiation is successful, the paging cycle reference value is set as a new paging cycle. In the invention, the mobile terminal negotiates an appropriate paging cycle with the network when using the instant messaging tool to obtain the power saving effect.

Description

Method and device for power saving of mobile terminal

technical field

The invention relates to a power saving technology of a mobile terminal, in particular to a power saving technology when using an instant messaging tool on a mobile terminal.

Background technique

In recent years, the mobile communication industry has become one of the fastest growing and most dynamic industries. As users have higher and higher requirements for communication quality and communication services, communication technology continues to develop and mature. By adopting GPRS technology, the existing GSM network can easily realize the simple access to high-speed data packets, so that operators Ability to react quickly to mobile market demands and gain a competitive advantage.

Based on the standard network protocol supported by GPRS bearing services, GPRS network operators can provide users with various telecommunication services. The application services provided by GPRS have the following characteristics:

(1) It is suitable for the transmission of discontinuous aperiodic (burst) data, and the time interval of burst occurrence is much greater than the average transmission delay of burst data;

(2) It is suitable for transaction processing business with small data volume less than 500 bytes, allowing several occurrences per minute and frequent transmission;

(3) It is suitable for transaction processing business with a large data volume of several kilobytes, allowing several occurrences per hour and frequent transmission.

The above-mentioned GPRS application business characteristics show that: GPRS is very suitable for bursty data application services and can efficiently use channel resources, but for large data volume application services, the GPRS network should be restricted.

In wireless communication, the signal used by the base station to actively establish communication with the terminal is called a paging signal. A terminal must know in advance when to turn on the radio receiver to receive a paging signal intended for this terminal. This is related to the period of receiving the paging signal and the time point of receiving the paging signal, that is, the paging subchannel. The terminal can negotiate the paging cycle and the time point of receiving the paging signal with the network through the GPRS mobility management attachment (GMM Attach) or GPRS routing area update (GMM Routing Area Update) process.

In the GPRS communication system, the paging sub-channel is stipulated as follows:

IMSI: International Mobile Subscriber Indentifier (International Mobile Subscriber Indentifier), placed in the SIM card.

CCCH_GROUP: Each cell (CELL) is equipped with KC common control channels (CCCH channels). CCCH_GROUP finally determines the CCCH channel of the user, which is calculated by IMSI through the following formula.

PAGING_GROUP: Indicates the paging block belonging to the user on the paging channel, which is calculated by the IMSI through the following formula, see below for more details.

Only the BCCH channel exists, and the SPLIT_PG_CYCLE parameter is not supported, and the value of the above mobile terminal paging group is determined by the network system message parameter. details as follows:

CCCH_GROUP(0...KC-1)＝((IMSI mod 1000)mod(KC×N))div N

PAGING_GROUP(0...N-1)＝((IMSI mod 1000)mod(KC×N))mod N

PAGING_GROUP indicates the paging block belonging to the user among N consecutive paging blocks, mod means modulo, and div means integer division.

If the SPLIT_PG_CYCLE parameter is supported, the terminal side negotiates with the network to send paging cycles through the parameter SPLIT_PG_CYCLE. details as follows:

CCCH_GROUP(0...KC-1)＝((IMSI mod 1000)mod(KC×N))div N

PAGING_GROUP(0...M-1)＝(((IMSI mod 1000)div(KC×N))×N

+(IMS Imod 1000)mod N+Max((m×M)div SPLIT_PG_CYCLE,

m))modM

PAGING_GROUP indicates the number of Paging blocks belonging to this user in consecutive M paging blocks

SPLIT_PG_CYCLE paging blocks;

in

m=0, . . . , Min(M, SPLIT_PG_CYCLE)-1,

KC=BS_CC_CHANS, the parameter BS_CC_CHANS is the number of CCCH channels supported by the physical channel.

For non-combined CCCH channels, the parameters M and N are determined by:

M=(9-BS_AG_BLKS_RES)×64,

N=(9-BS_AG_BLKS_RES)×BS_PA_MFRMS;

For a combined CCCH channel, the parameters M and N are determined by:

M=(3-BS_AG_BLKS_RES)×64,

N=(3-BS_AG_BLKS_RES)×BS_PA_MFRMS;

Among them, the parameter BS_AG_BLKS_RES is the number of access grant reserved blocks, and its value should be greater than 0; the parameter BS_PA_MFRMS is the number of multiframes of the paging channel, which refers to how many multiframes are used as a cycle of the paging subchannel. In fact, this parameter determines How many paging sub-channels are assigned to the paging channel in a cell.

It can be seen from the above formula that the larger the SPLIT_PG_CYCLE, the more pages are received in the same time, and the shorter the time required for the network to paging the terminal, because receiving more pages, the terminal consumes more power; the smaller the SPLIT_PG_CYCLE, the more pages are received in the same time The less it is, the longer it will take for the network to page the terminal, because the terminal will consume less power if it receives fewer pages.

QQ/MSN and other instant messaging services increase power consumption due to frequent small data transmissions during the business period and data transmissions caused by regular heartbeat connections with the server. For instant messaging software such as QQ/MSN, the change of the time required for paging (the change range of a few seconds) has little impact on the user's experience, but it can greatly prolong the standby time of the mobile phone (the main power consumption of the mobile phone during standby is to receive paging).

Contents of the invention

The object of the present invention is to provide a method and device for saving power when using an instant messaging tool on a mobile terminal, so as to solve the problem of increased power consumption when the mobile terminal uses the instant messaging tool.

In order to solve the above problems, the present invention provides a mobile terminal power saving method, comprising the following steps:

After the mobile terminal starts the instant messaging application software, set the reference value of the paging cycle;

judging whether it is necessary to initiate a paging cycle negotiation process;

If necessary, the SPLIT_PG_CYCLE value corresponding to the reference value of the paging cycle is loaded into the attach request message as a GPRS parameter, and the mobile terminal negotiates the paging cycle with the network;

After the negotiation is successful, the paging cycle reference value is set as a new paging cycle.

In order to solve the above problems, the present invention also provides a power-saving mobile terminal, which has an instant messaging service execution unit for performing normal data transmission of instant messaging, and it also includes:

The reference value setting unit of the paging cycle is used to set the reference value of the paging cycle;

The paging cycle negotiation triggering unit judges whether it is necessary to initiate a paging cycle negotiation process;

Comparison unit: judging whether the current paging cycle is less than the reference value of the paging cycle;

Parameter update unit: load the SPLIT_PG_CYCLE value corresponding to the paging cycle reference value obtained by the paging cycle reference value setting unit into the attach request message as a GPRS parameter value, negotiate the paging cycle with the network, and update the original paging cycle to The reference value of the paging cycle.

Optionally, the power-saving mobile terminal further includes a storage unit for storing the instant messaging paging cycle set by the mobile terminal manufacturer when leaving the factory.

Optionally, the power-saving mobile terminal further includes a user setting interface so that the user can select one from a set of optional values preset in the mobile terminal as the paging cycle reference value, or allow the user to directly input the paging cycle Reference.

Optionally, the power-saving mobile terminal has a timer setting unit, and when the timer expires, the paging cycle negotiation triggering unit sends a paging cycle negotiation signal to trigger the negotiation process.

Compared with the prior art, the present invention initiates the attachment process of GPRS mobility management or the routing area update process of GPRS mobility management through the mobile terminal according to the characteristics of the data service when using the instant messaging tool, and negotiates a suitable paging process with the network. cycle to save power.

Description of drawings

Fig. 1 is a flowchart of an embodiment of the present invention.

FIG. 2 is a block diagram of a circuit implementing an embodiment of the present invention.

Detailed ways

The method for saving power when using instant messaging tools such as QQ/MSN on a mobile terminal according to the present invention will be specifically described below in conjunction with the accompanying drawings.

See also shown in Fig. 1, Fig. 1 is the flowchart of an embodiment of the present invention, comprises the following steps:

Step S101, start the instant messaging tool;

Step S102, setting the reference value of the paging cycle;

Step S103, judging whether it is necessary to initiate a paging cycle negotiation process, if yes, then execute step S104; if not, then go to step S108;

Step S104, the SPLIT_PG_CYCLE value corresponding to the paging cycle reference value set in step S102 is loaded into the GMM attach request message as a GPRS parameter;

Step S105, the mobile terminal initiates a GPRS mobility management attach or GPRS mobility management routing area update process to negotiate a paging cycle with the network;

Step S106, judging whether the negotiation process is successful, if yes, then execute step S107; if not, then go to step S108;

Step S107, updating the original paging cycle to the paging cycle reference value set in step S102;

Step S108, the instant messaging application sends and receives data normally;

Step S109, determine whether the instant messaging application is closed, if yes, exit the instant messaging application; if not, return to step S102.

In step S102, the paging cycle reference value can be set by the following two methods:

(1) set by the mobile terminal manufacturer when leaving the factory;

(2) Selected from a group of optional values input by the user or preset in the mobile terminal.

In the first method above, the reference value of the paging cycle set by the mobile terminal manufacturer at the factory can be obtained by off-line statistics on the characteristics of data transmission when using instant messaging tools such as QQ/MSN to obtain a most power-saving value in most cases.

The optional values set in the above second method can obtain a set of representative values through offline statistics on the characteristics of data transmission when using instant messaging tools such as QQ/MSN; or, the paging cycle reference value is based on user experience , enter a value within the value range by yourself.

In step S104, the relationship between the paging cycle reference value set in step S102 and the corresponding SPLIT_PG_CYCLE value is as follows:

Among them, the multiframe length is 51 (for the CCCH channel) or 52 (for the PCCCH channel), the duration of each frame is 4.61ms, the value range of the SPLIT_PG_CYCLE value is [1, 64], and the value range of the paging cycle reference value From 235.4ms to 15064ms.

Since the longer the paging cycle, the longer it takes for the network to paging the terminal, and because the terminal receives less paging, the power consumption of the terminal will be lower, so ideally, setting the paging cycle to 15064ms can achieve the maximum power saving effect, but considering It is not that the terminal can be paged by one paging. If it needs to be paged many times to the terminal, the time delay of data transmission to the terminal will be increased, so that the user cannot bear it. Therefore, 500ms is selected as the paging time in the present invention. The reference value of the cycle, and its corresponding SPLIT_PG_CYCLE value is 31.

In step S103, in the following three situations, negotiation needs to be initiated:

(1) When the mobile terminal initiates GPRS mobility management attachment or GPRS mobility management routing area update to the network;

(2) Initiate when it is detected that the current paging cycle is less than the paging cycle reference value;

(3) It is initiated by the mobile terminal at regular intervals.

Fig. 2 shows that implements the circuit block diagram of an embodiment of the present invention, has instant messaging service execution unit 201 in order to carry out the normal data transmission of instant messaging, it also includes:

The reference value setting unit 202 of the paging cycle is configured to set the reference value of the paging cycle;

The paging cycle negotiation triggering unit 203 determines whether it is necessary to initiate a paging cycle negotiation process;

Comparing unit 204: judging whether the current paging cycle is smaller than a reference value of the paging cycle;

Parameter update unit 205: load the SPLIT_PG_CYCLE value corresponding to the paging cycle reference value obtained by the paging cycle reference value setting unit into the attach request message as a GPRS parameter value, negotiate the paging cycle with the network, and update the original paging cycle It is the reference value of the paging cycle.

Further, the power-saving mobile terminal may also be provided with a storage unit 206 for storing the instant messaging paging cycle set by the mobile terminal manufacturer when leaving the factory.

Further, the power-saving mobile terminal can also add a user setting interface 207 so that the user can select one from a set of optional values preset in the mobile terminal as the paging cycle reference value, or allow the user to directly input the paging cycle reference value .

Further, the power-saving mobile terminal can also set a timer unit 208, which is used to regularly trigger the paging cycle negotiation process.

In the following three situations, the paging cycle negotiation trigger unit 203 will send a paging cycle negotiation signal to trigger the negotiation process:

(1) When it is detected that the mobile terminal needs to initiate GPRS mobility management attachment or GPRS mobility management routing area update to the network;

(2) When it is detected that the current paging cycle is less than the paging cycle reference value;

(3) If the power-saving mobile terminal is provided with a timer unit 208, when the timer expires.

Compared with the prior art, the present invention initiates the attachment process of GPRS mobility management or the routing area update process of GPRS mobility management through the mobile terminal according to the characteristics of data services when using instant communication tools such as QQ/MSN, and negotiates with the network a Appropriate paging cycle for power saving effect.

It can be understood that those skilled in the art can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention, and all these changes or replacements should belong to the protection scope of the appended claims of the present invention.

Claims (13)

1. A mobile terminal power saving method, characterized in that the method comprises the steps of: After the mobile terminal starts the instant messaging application software, set the reference value of the paging cycle; judging whether it is necessary to initiate a paging cycle negotiation process; If necessary, the SPLIT_PG_CYCLE value corresponding to the reference value of the paging cycle is loaded into the attach request message as a GPRS parameter, and the mobile terminal negotiates the paging cycle with the network; After the negotiation is successful, the paging cycle reference value is set as a new paging cycle. 2. The method for saving power of a mobile terminal according to claim 1, wherein the reference value of the paging cycle is set by a mobile terminal manufacturer when leaving the factory. 3. The power saving method for a mobile terminal according to claim 1, wherein the reference value of the paging cycle is selected from a group of optional values input by a user or preset in the mobile terminal. 4. The mobile terminal power saving method according to claim 1, wherein the relationship between the reference value of the paging cycle and the SPLIT_PG_CYCLE value is determined by the following formula:

5. The mobile terminal power saving method according to claim 1, wherein the negotiation of the paging cycle is initiated when the mobile terminal initiates GPRS mobility management attach or GPRS mobility management routing area update to the network. 6. The method for saving power of a mobile terminal according to claim 1, wherein the negotiation of the paging cycle is initiated when it is detected that the current paging cycle is smaller than a reference value of the paging cycle. 7. The method for saving power of a mobile terminal according to claim 1, wherein the negotiation of the paging cycle is initiated by the mobile terminal at regular intervals. 8. A power-saving mobile terminal has an instant messaging service execution unit in order to perform normal data transmission of instant messaging, it is characterized in that it also includes: The reference value setting unit of the paging cycle is used to set the reference value of the paging cycle; The paging cycle negotiation triggering unit judges whether it is necessary to initiate a paging cycle negotiation process; Comparison unit: judging whether the current paging cycle is less than the reference value of the paging cycle; Parameter update unit: load the SPLIT_PG_CYCLE value corresponding to the paging cycle reference value obtained by the paging cycle reference value setting unit into the attach request message as a GPRS parameter value, negotiate the paging cycle with the network, and update the original paging cycle to The reference value of the paging cycle. 9. The power-saving mobile terminal according to claim 8, characterized in that, the power-saving mobile terminal further comprises a storage unit for storing the instant messaging paging cycle set by the mobile terminal manufacturer when leaving the factory. 10. The power-saving mobile terminal according to claim 8, characterized in that, the power-saving mobile terminal further includes a user setting interface so that the user can select one of a set of optional values preset in the mobile terminal as the search function. The paging cycle reference value, or the user can directly input the paging cycle reference value. 11. The power-saving mobile terminal according to claim 8, wherein when the paging cycle negotiation triggering unit detects that the mobile terminal needs to initiate GPRS mobility management attachment or GPRS mobility management routing area update to the network, Send a paging cycle negotiation signal to trigger the negotiation process. 12. The power-saving mobile terminal according to claim 8, characterized in that, when the paging cycle negotiation trigger unit detects that the current paging cycle is smaller than the paging cycle reference value, it sends a paging cycle negotiation signal to trigger the negotiation process. 13. The power-saving mobile terminal according to claim 8, characterized in that, the power-saving mobile terminal has a setting timer unit, and when the timing time is up, the paging cycle negotiation trigger unit sends a paging cycle Negotiation signal, triggering the negotiation process.

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