CN101674620A - Method for logging to General Packet Radio Service network (GPRS) and mobile communication terminal - Google Patents

Method for logging to General Packet Radio Service network (GPRS) and mobile communication terminal Download PDF

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Publication number
CN101674620A
CN101674620A CN200910093823A CN200910093823A CN101674620A CN 101674620 A CN101674620 A CN 101674620A CN 200910093823 A CN200910093823 A CN 200910093823A CN 200910093823 A CN200910093823 A CN 200910093823A CN 101674620 A CN101674620 A CN 101674620A
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gprs
system message
login
gprs network
information
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CN200910093823A
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Chinese (zh)
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陆涛
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Huawei Device Shenzhen Co Ltd
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Shenzhen Huawei Communication Technologies Co Ltd
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Priority to CN200910093823A priority Critical patent/CN101674620A/en
Publication of CN101674620A publication Critical patent/CN101674620A/en
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Abstract

The invention relates to a method for logging to General Packet Radio Service (GPRS) network and a mobile communication terminal. The method includes the following steps: acquiring a system message broadcast by a neighbor cell; judging whether the system message comprises GPRS information used for logging to the GPRS network; if the system message comprises the GPRS information used for logging tothe GPRS network, conducting cell reselection; residing in the neighbor cell broadcasting the system message and according with reselection conditions; and transmitting a GPRS connection request andlogging to the GPRS network. In the embodiment, before executing GPRS connection, a cell supporting GPRS is searched and resided in, the problem that if the present residing serving cell does not support GPRS, the mobile communication terminal can not log to GPRS is solved, and the application requirements of users are met.

Description

The method and the mobile communication terminal of login GPRS network
Technical field
The present invention relates to wireless communication technology field, relate in particular to the method and the mobile communication terminal of login GPRS network.
Background technology
Now, expansion and expenses ajustment along with wireless network bandwidth, the data service of mobile phone has expanded to WAP (wireless application protocol) (Wireless Application Protocol, WAP), MMS (Multimedia Messaging Service, MMS), Email application such as (EMAIL).Though the 3G technology development is rapid, before 3G network generally covered, (GeneralPacket Radio Service GPRS) still was the main applicable technology of data service to GPRS.
In the prior art, when user's radio communication devices such as upper layer application triggering mobile phone were logined GPRS network, mobile phone judged at first whether current Serving cell supports GPRS.If current Serving cell is supported GPRS, then mobile phone is initiated connection request (attach request) message, carries out GPRS and connects (GPRSattach) operation, the login GPRS network.If current Serving cell is not supported GPRS, then handset displays login GPRS network information is informed the user.
In realizing process of the present invention, the inventor finds that there is following defective at least in prior art: if current resident Serving cell is not supported GPRS, then mobile communication terminal can't be logined GPRS, thereby can't satisfy user's application demand.
Summary of the invention
The embodiment of the invention proposes a kind of method and mobile communication terminal of logining the GPRS network, does not support that to solve current resident Serving cell under the situation of GPRS, mobile communication terminal can't be logined the problem of GPRS.
The embodiment of the invention provides a kind of method of logining the GPRS network, comprising:
Obtain the system message of adjacent Cell Broadcast CB;
Judge whether described system message comprises the GPRS information that is used to login described GPRS network;
Comprise in described system message under the situation of the GPRS information that is used to login described GPRS network, carry out the sub-district gravity treatment;
Resident to the described system message of broadcasting and meet the adjacent sub-district of reselection conditions;
Initiate the GPRS connection request, login GPRS network.
The embodiment of the invention also provides a kind of mobile communication terminal, comprising:
The system message acquisition module is used to obtain the system message of adjacent Cell Broadcast CB;
Judge module is used to judge whether described system message comprises the GPRS information that is used to login described GPRS network;
The gravity treatment module is used for comprising under the situation of the GPRS information that is used to login described GPRS network in described system message, carries out the sub-district gravity treatment;
Resident module is used for resident to the described system message of broadcasting and meet the adjacent sub-district of reselection conditions;
The connection request module is used to initiate the GPRS connection request, login GPRS network.
The foregoing description is not supported GPRS to the sub-district of supporting GPRS if solved current resident Serving cell by searching before carrying out the GPRS connection is also resident, and then mobile communication terminal can't be logined the problem of GPRS, has satisfied user's application demand.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
A kind of flow chart of logining the method for GPRS network that Fig. 1 provides for the embodiment of the invention;
The signaling process figure that GPRS connects in the method for the login GPRS network that Fig. 2 provides for the embodiment of the invention;
The another kind that Fig. 3 provides for the embodiment of the invention is logined the flow chart of the method for GPRS network;
The structural representation of a kind of mobile communication terminal that Fig. 4 provides for the embodiment of the invention.
Embodiment
A kind of flow chart of logining the method for GPRS network that Fig. 1 provides for the embodiment of the invention.Suppose that the current resident Serving cell of mobile communication terminal do not support GPRS, this method comprises:
Step 11, obtain the system message of adjacent Cell Broadcast CB.
This action can be carried out by mobile communication terminal such as mobile phone.When the user selected a certain GPRS network service by the button on the mobile communication terminal, upper layer application at first triggered mobile communication terminal and goes to login GPRS network.Because current resident Serving cell is not supported GPRS, mobile communication terminal at first obtains the system message of adjacent sub-district.
Step 12, judge whether described system message comprises the GPRS information that is used to login described GPRS network.
This action can be carried out by mobile communication terminal such as mobile phone.If comprise GPRS information in the system message that terminal is obtained, illustrate that this system message is that type of message is the system message of " SI13 " in the gprs system standard, and broadcast the adjacent sub-district support GPRS of this system message.Therefore, after mobile communication terminal gets access to, can be resident to the adjacent sub-district of supporting GPRS, initiate the GPRS connection request again.
Step 13, comprise under the situation of the GPRS information that is used to login described GPRS network, carry out the sub-district gravity treatment in described system message.
This action can be carried out by mobile communication terminal such as mobile phone.Mobile communication terminal gets access under the situation of type for the system message of " SI13 " of a certain adjacent sub-district, carries out the sub-district gravity treatment.
Step 14, resident to the described system message of broadcasting and meet the adjacent sub-district of reselection conditions.
This action can be carried out by mobile communication terminal such as mobile phone.After mobile communication terminal carries out the sub-district gravity treatment, resident to the adjacent sub-district that meets reselection conditions and support GPRS.In an example, the sub-district reselection conditions is as follows:
1) the wireless path loss of current persistent district too big (C1＜=0); Wherein C1 refers to a parameter of sub-district gravity treatment, and (Global System for Mobile Communications, GSM) terminal is by judging that this parameter determines whether carrying out the sub-district gravity treatment for global system for mobile communications.
2) downlink failure parameter DSC＜=0 of current persistent district;
3) current persistent district has been under an embargo;
4) according to cell reselection parameters C2, there is one than the better sub-district of current persistent district in same lane place, or utilization sub-district gravity treatment hysteresis (CRH) parameter, a better sub-district is arranged in the another location district in the network of choosing.
5) inserting number of times at random reaches Broadcast Control Channel (Broadcast Control channel BCCH) goes up the maximum reattempt times of broadcasting, and the success of still failing inserts current persistent district.
Step 15, initiation GPRS connection request, the login GPRS network.
This action can be carried out by mobile communication terminal such as mobile phone.Mobile communication terminal is resident behind the sub-district of supporting GPRS, initiates the GPRS connection request, carries out the GPRS attended operation.The signaling process that GPRS connects comprises as shown in Figure 2:
Step 21, mobile communication terminal send connection request (Attach Request) message to new SGSN;
Step 22, new SGSN send authentication request (Identification Request) message to old SGSN, and the request old SGSN authenticates.After the old SGSN authentication is passed through, return authentication response (IdentificationResponse) message.
Step 23, new SGSN send identification request (Identity Request) message to mobile communication terminal; Mobile communication terminal returns identification response (Identity Response) message.
Carry out authentication (Authentication) between step 24, mobile communication terminal, new SGSN and the attaching position register (HLR).
Carry out IMEI between step 25, mobile communication terminal, new SGSN and the equipment identity register (EIR) and check (IMEI Check).Wherein, EIR is a network element that is used for carrying out identification.
Step 26, new SGSN upgrade positional information.New SGSN is to the postpone of HLR updated space, and HLR cancels the position of old SGSN.Afterwards, insert user data, finish the position of new SGSN and upgrade to new SGSN.
Step 27, new mobile switching centre or visitor location register (MSC/VLR) upgrade positional information.New SGSN is after new MSC/VLR initiates position updating request (Location Update Request) message, and new MSC/VLR upgrades the position to HLR, and HLR cancels the position of old MSC/VLR.Afterwards, insert user data to new MSC/VLR, home position upgrades accepts (Location UpdateAccept) message, finishes the position of new MSC/VLR and upgrades.
Step 28, new SGSN calculate and obtain parameters C 1, return connection acceptance (Attach Accept) message acceptance to mobile communication terminal and connect.
Step 29, GPRS connection are finished.Mobile communication terminal sends to connect to new SGSN finishes (AttachComplete) message; New SGSN sends interim identification code (TMSI) to new MSC/VLR and redistributes and finish (TMSI Reallocation Complete) message.
Present embodiment is by seeking the sub-district of also resident support GPRS before initiating the GPRS connection request, even make current area not support GPRS, also can there be successful connection under the situation of the sub-district of supporting GPRS in mobile communication terminal in adjacent sub-district, reduce the possibility of GPRS connection failure, improved the quality of gprs service.
Before the above-mentioned steps 11, also can comprise: the described system message of obtaining described current service cell; Do not comprise in the described system message of described current service cell under the situation of the GPRS information that is used to login described GPRS network, carrying out the described step of obtaining the system message of adjacent sub-district is above-mentioned steps 11.To avoid under the situation of current service cell support GPRS, removing to select persistent district again, with the treatment effeciency of further raising login GPRS network.
Do not comprise in the system message of all adjacent sub-districts that obtain under the situation of the GPRS information that is used to login described GPRS network, the method for the login GPRS network that the embodiment of the invention provides also can comprise:
Synchronous successively all sub-districts, and obtain the system message of institute's synchronized cells broadcasting;
Whether the system message of judging the synchronized cells broadcasting of described institute comprises the GPRS information that is used to login described GPRS network;
Comprise in the system message of described institute synchronized cells broadcasting under the situation of the GPRS information that is used to login described GPRS network, resident to described institute synchronized cells;
Initiate the GPRS connection request, the login GPRS network.
Do not comprise under the situation of the GPRS information that is used to login described GPRS network at least one step during the method for the login GPRS network that the embodiment of the invention provides also can may further comprise the steps in the system message of described all Cell Broadcast CBs:
The sub-district that resident letter in reply is number the strongest, network No. is correct;
Return login GPRS network failure information to the user.With Fig. 3 is that example describes.
The another kind that Fig. 3 provides for the embodiment of the invention is logined the flow chart of the method for GPRS network.This method comprises:
Step 31, mobile phone judge whether current resident server sub-district supports GPRS under the triggering of upper layer application.Particularly, after mobile phone is subjected to the triggering of upper layer application, at first read the system message that comprises GPRS information on the BCCH of current area channel, promptly type is the system message of " SI13 ".If read to be the system message of " SI13 ", judge that then current area do not support GPRS, execution in step 32 less than type; If get access to the system message of type for " SI13 ", then execution in step 38.
Step 32, mobile phone carry out type and are the obtaining of the system message of " SI13 " on 6 adjacent sub-districts, if get access to the system message of type for " SI13 ", execution in step 35; If do not get access to the system message of type for " SI13 " from 6 adjacent areas, then execution in step 33.
Step 33, initiate cell selecting,,, and read the system message of institute's synchronized cells according to the strong and weak order of signal synchronized cells successively according to the flow process of cell selecting.At first go up synchronously the strongest sub-district of signal, carry out reading of system message, when reading type, illustrate that this sub-district supports GPRS for the system message of " SI13 "; Be not the system message of " SI13 " if read type, then by signal by continuing synchronous next sub-district to weak order by force, read the system message of this Cell Broadcast CB, circulate successively.
Step 34, judge whether to find the proper cell of supporting GPRS is arranged, if the system message that a certain Cell Broadcast CB type in the process that step 33 is carried out on synchronously is " SI13 ", illustrate that mobile phone has gone up that signal strength signal intensity is suitable synchronously, network No. is correct and support the sub-district of GPRS, then resident to this sub-district, execution in step 38; The worst situation is after the cell selecting, does not find the sub-district of supporting GPRS, does not promptly read the system message of type for " SI13 " in the process of execution in step 33, this moment execution in step 36.
Step 35, carry out gravity treatment according to GSM sub-district gravity treatment principle again, if meet the sub-district reselection conditions, then resident this sub-district, the execution in step 38 of going up.The sub-district reselection conditions sees the explanation of above-mentioned steps 13 for details.
On the sub-district that step 36, resident letter in reply are number the strongest, network No. is correct.
Step 37, return login GPRS network failure information, finish login process to the user.
Step 38, initiation connection request carry out normal GPRS and connect flow process, until the login GPRS network, finish login process.The flow process that connects GPRS sees the explanation of above-mentioned embodiment illustrated in fig. 2 and step 21～step 29 for details.
After the user uses the GPRS network service, when withdrawing from GPRS, because according to the resident sub-district of the operating process of above-mentioned steps 31～step 38 is not best for mobile phone, therefore mobile phone can cause the sub-district gravity treatment once more or note the subdistrict frequency point of original the best, resident go back to original best sub-district.
Present embodiment does not exist under the situation of the sub-district of supporting GPRS in adjacent sub-district, by cell selecting and read type and be the system message of " SI13 ", but further enlarged the scope of persistent district, reduced the possibility of GPRS connection failure, improved the quality of gprs service.
The structural representation of a kind of mobile communication terminal that Fig. 4 provides for the embodiment of the invention.This mobile communication terminal can be mobile phone, comprising: system message acquisition module 41, judge module 42, gravity treatment module 43, resident module 44 and connection request module 45.System message acquisition module 41 is used to obtain the system message of adjacent Cell Broadcast CB.Judge module 42 is used to judge whether described system message comprises the GPRS information that is used to login described GPRS network, judges promptly whether the type of described system message is " SI13 ".Gravity treatment module 43 is used for comprising under the situation of the GPRS information that is used to login described GPRS network in described system message, carries out the sub-district gravity treatment.Resident module 44 is used for resident to the described system message of broadcasting and meet the adjacent sub-district of reselection conditions.Reselection conditions specifically sees the explanation in the above-mentioned steps 13 for details.Connection request module 45 is used to initiate the GPRS connection request, the login GPRS network.
In the present embodiment, mobile communication terminal is provided with system message acquisition module 41, judge module 42 and gravity treatment module 43, make mobile communication terminal before initiating the GPRS connection request, seek the sub-district of also resident support GPRS, do not support GPRS even guaranteed current area, also can there be successful connection under the situation of the sub-district of supporting GPRS in mobile communication terminal in adjacent sub-district, reduce the possibility of GPRS connection failure, improved the quality of gprs service.
Described system message acquisition module 41 also can be used for obtaining the described system message of described current service cell, and do not comprise in the described system message of described current service cell under the situation of the GPRS information that is used to login described GPRS network, carry out the described step of obtaining the system message of adjacent sub-district.To avoid under the situation of current service cell support GPRS, removing to select persistent district again, with the treatment effeciency of further raising login GPRS network.
The mobile communication terminal that the embodiment of the invention provides also can comprise: synchronization module 46.This synchronization module 46 is used under the situation that system message in all adjacent sub-districts that obtain do not comprise the GPRS information that is used to login described GPRS network, successively all sub-districts synchronously.At this moment, described system message acquisition module 41 specifically is used to obtain the system message of institute's synchronized cells broadcasting; Described judge module 42 is used to specifically judge whether the system message of described institute synchronized cells broadcasting comprises the GPRS information that is used to login described GPRS network; Described resident module 44 specifically is used under the situation that system message in the broadcasting of described institute synchronized cells comprises the GPRS information that is used to login described GPRS network, and is resident to described institute synchronized cells; Described connection request module 45 specifically is used for initiating the GPRS connection request, the login GPRS network by described resident module 44 resident sub-districts.
Among said method and the terminal embodiment, mobile communication terminal is before carrying out the GPRS connection, by seeking and resident sub-district to support GPRS, do not support GPRS if solved current resident Serving cell, then mobile communication terminal can't be logined the problem of GPRS, thereby has satisfied user's application demand.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1, a kind of method of logining the GPRS network is characterized in that, comprising:
Obtain the system message of adjacent Cell Broadcast CB;
Judge whether described system message comprises the GPRS information that is used to login described GPRS network;
Comprise in described system message under the situation of the GPRS information that is used to login described GPRS network, carry out the sub-district gravity treatment;
Resident to the described system message of broadcasting and meet the adjacent sub-district of reselection conditions;
Initiate the GPRS connection request, login GPRS network.
2, the method for login GPRS network according to claim 1 is characterized in that, obtains before the system message of adjacent Cell Broadcast CB, also comprises:
Obtain the described system message of current service cell;
Do not comprise in the described system message of described current service cell under the situation of the GPRS information that is used to login described GPRS network, carry out the described step of obtaining the system message of adjacent sub-district.
3, the method for login GPRS network according to claim 1 and 2, it is characterized in that, do not comprise in the system message of all adjacent sub-districts that obtain under the situation of the GPRS information that is used to login described GPRS network, synchronous successively all sub-districts, and obtain the system message of institute's synchronized cells broadcasting;
Whether the system message of judging the synchronized cells broadcasting of described institute comprises the GPRS information that is used to login described GPRS network;
Comprise in the system message of described institute synchronized cells broadcasting under the situation of the GPRS information that is used to login described GPRS network, resident to described institute synchronized cells;
Initiate the GPRS connection request, login GPRS network.
4, the method for login GPRS network according to claim 3, it is characterized in that, do not comprise in the system message of described all Cell Broadcast CBs under the situation of the GPRS information that is used to login described GPRS network, described method also comprises:
The sub-district that resident letter in reply is number the strongest, network No. is correct.
5, the method for login GPRS network according to claim 3, it is characterized in that, do not comprise in the system message of described all Cell Broadcast CBs under the situation of the GPRS information that is used to login described GPRS network, described method also comprises:
Return login GPRS network failure information to the user.
6, a kind of mobile communication terminal is characterized in that, comprising:
The system message acquisition module is used to obtain the system message of adjacent Cell Broadcast CB;
Judge module is used to judge whether described system message comprises the GPRS information that is used to login described GPRS network;
The gravity treatment module is used for comprising under the situation of the GPRS information that is used to login described GPRS network in described system message, carries out the sub-district gravity treatment;
Resident module is used for resident to the described system message of broadcasting and meet the adjacent sub-district of reselection conditions;
The connection request module is used to initiate the GPRS connection request, login GPRS network.
7, mobile communication terminal according to claim 6 is characterized in that, also comprises:
Described system message acquisition module also is used to obtain the described system message of described current service cell, and do not comprise in the described system message of described current service cell under the situation of the GPRS information that is used to login described GPRS network, carry out the described step of obtaining the system message of adjacent sub-district.
8, according to claim 6 or 7 described mobile communication terminals, it is characterized in that, also comprise:
Synchronization module is used under the situation that system message in all adjacent sub-districts that obtain do not comprise the GPRS information that is used to login described GPRS network, successively all sub-districts synchronously;
Described system message acquisition module specifically is used to obtain the system message of institute's synchronized cells broadcasting;
Described judge module is used to specifically judge whether the system message of described institute synchronized cells broadcasting comprises the GPRS information that is used to login described GPRS network;
Described resident module specifically is used under the situation that system message in the broadcasting of described institute synchronized cells comprises the GPRS information that is used to login described GPRS network, and is resident to described institute synchronized cells;
Described connection request module specifically is used for initiating the GPRS connection request by the resident sub-district of described resident module, login GPRS network.
9, mobile communication terminal according to claim 8, it is characterized in that, described resident module specifically is used under the situation that system message at described all Cell Broadcast CBs do not comprise the GPRS information that is used to login described GPRS network, the sub-district that resident letter in reply is number the strongest, network No. is correct.
10, mobile communication terminal according to claim 8 is characterized in that, also comprises:
Failure information returns module, be used for returning login GPRS network failure information to the user under the situation that system message at described all Cell Broadcast CBs do not comprise the GPRS information that is used to login described GPRS network.
CN200910093823A 2009-09-21 2009-09-21 Method for logging to General Packet Radio Service network (GPRS) and mobile communication terminal Pending CN101674620A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102740388A (en) * 2011-03-31 2012-10-17 中国移动通信集团公司 Method and terminal for residing network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102740388A (en) * 2011-03-31 2012-10-17 中国移动通信集团公司 Method and terminal for residing network

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Application publication date: 20100317