CN100428857C - Regional border roaming control method for mobile communication system - Google Patents
Regional border roaming control method for mobile communication system Download PDFInfo
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- CN100428857C CN100428857C CNB2006100028962A CN200610002896A CN100428857C CN 100428857 C CN100428857 C CN 100428857C CN B2006100028962 A CNB2006100028962 A CN B2006100028962A CN 200610002896 A CN200610002896 A CN 200610002896A CN 100428857 C CN100428857 C CN 100428857C
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Abstract
The present invention relates to a method for controlling regional border roaming of a mobile communication system, which comprises the following steps: a border roaming parameter is set on a user card and a border roaming banning parameter of a border cell is set at a wireless network side; the border roaming banning parameter of the border cell is broadcast through broadcast information by a wireless network; a mobile terminal receives the broadcast information and judges whether the border roaming banning parameter in the broadcast information comprises the border roaming parameter on the user card used by the mobile terminal; if true, then the mobile terminal does not stay in a current cell. The present invention realizes that using a cell or a cell cluster as a division unit to judge whether a mobile station in an idle state of the border control of a regional cell stays in a certain cell, a current charging system does not need to be changed, and a signaling load of a mobile network is not increased. The roaming control is accurate to the cell, only user roaming in the border cell is limited, and users in a non-border cell can not be influenced.
Description
Technical field
The present invention relates to the roam control method of mobile communication system, relate in particular to the regional border roaming control method of mobile communication system.
Background technology
Under the existing mobile communication network condition, accessing mobile communication network for users is to be got in touch by wireless signal by mobile phone terminal/travelling carriage and base station.Operator is divided into a plurality of message areas with the mobile network, realizes the different charge of different user according to message area.This needs the mobile service charge system can distinguish current customer location accurately, for example, the user is currently located at the message area of its ownership, this user is in non-roaming state so, should not collect roaming charges, toll fee, if the user is positioned at the non-attribution message area, this user then is in roaming state so, should collect roaming charges, toll fee.
In existing mobile communications system, the borderline region of two or more adjacent message areas, can be belonged to the base station signal in different charge district cover, the base station that the travelling carriage that is in a certain message area borderline region may register to adjacent message area communicates.For example: if the active user is in the A ground of its ownership, because the covering problem of wireless signal, the signal of possible B ground base station system is stronger than the signal on A ground, and the user will contribute to the network on B ground like this.If this user calls, charge system can think that this user roams, and charges according to roaming state.Thereby cause when the user is in the border of message area, geographically not roaming of user occurs, but in fact used the network of roaming administrative region and the situation of the user being chargeed according to roaming state.It is own to the not roaming of the message area border of ownership that the user thinks, should not collect roaming charges, long-distance rate; But in fact the user owing to may use the network in roam charge district, so operator may collect roaming charges, long-distance rate when collecting the charges, has caused user's the loss and the decline of operator's service quality when the message area border.
In addition, operator has also opened some based on the preferential business of the rate in geographical position, and for example the campus is logical etc., and rate have very big discount when the user converse in the campus, but when outside the campus, conversing then rate with normally rate are identical.When the user is in covering border, campus, although the base station signal in the campus is arranged this moment, but owing to can receive signal stronger outside the campus, therefore often reside in the sub-district of base station outside the campus, this moment, conversation just can't be enjoyed the preferential charge that enjoy, can cause user's the loss and the decline of operator's service quality thus equally.
Above-mentioned covering because the boundary wireless signal in two different charge districts intermeshes, cause being positioned at the forntier region the CU that belongs to a certain message area the signal of another message area carried out roaming call, and the customer complaint that produces, rate are handled, the network operation cost increases or the like problems and is referred to as the border roaming problem.Be positioned at the forntier region, wireless signal crosses the border and covers another message area and cause the sub-district of border roaming problem to become border cell.In mobile communications network, the border cell ratio is very high, and the border roaming problem is perplexing mobile operator always, and the test optimization work of border cell has also been brought huge workload for operation support department of operator.
In order to solve the border roaming problem, prior art mainly contains following two kinds of technical schemes:
(1) border cell is blured charging.Promptly do not collect roaming, long-distance rate that border cell roaming problem produces.This scheme has following shortcoming: the first, for operator, caused the loss of part rate.Because the user may use the network of roaming administrative region when the border, administrative area, from operator's angle, roaming can increase the network operation maintenance cost, should collect because roaming charges, the toll fee that roaming produces.Adopt the fuzzy charging of border cell, although evaded the problems referred to above, the consequent roaming that should collect, long-distance rate also can't be collected, and can cause the rate loss of operator's part, have increased operation maintenance cost.The second, change bigger to mobile network, the charge system of operator.Charge system and mobile network need increase function corresponding, just can identify which rate owing to the border cell roaming produces, and deduct these rate in ticket.And network still is in the middle of the continuous dilatation, comprises border cell, and for this reason, charge system also has to frequently change along with the network capacity extension.The 3rd, increased mobile network's signaling traffic load.The user who is positioned at border cell changes when using the network that belongs to different administrative regions when belonging to different lane place (and different administrative region) at every turn, all can survey to network and initiate location update message, thereby increase mobile network's signaling traffic load.
(2) mode that adopts non-attribution network refusal active user to insert.When the user when border cell attempts to sign in to the non-attribution networking by " position updating request " message, the non-attribution network inserts by " position upgrade refusal " message refusing user's, user then attempt belonging area network or other networks are logined.There is following shortcoming in this mode: the first, and can't discern the user is to be in border cell, still is in fully within the covering of non-attribution sub-district.Even in the time of within the arbitrary sub-district that makes the user be in non-attribution fully covers, also can't login the non-attribution network.The second, can only be accurate to the scope of lane place.The user that promptly can only limit the border cell in the present position-region lands from the another location district, can't be applied to solve " borderline region " problem based on the preferential business of geographical position rate than the lane place regional border roaming restriction of (such as county town scope, campus-wide) more among a small circle.
Summary of the invention
The objective of the invention is at the existing in prior technology defective, a kind of regional border roaming control method of mobile communication system is provided, with sub-district or cell cluster is dividing unit, whether the travelling carriage in regional cell boarder control idle condition is resident in certain sub-district, need not change existing charge system, need not blur charging, bring loss can for the rate of operator, not increase mobile network's signaling traffic load; Roaming control can be as accurate as the sub-district, can be used for solving the interregional border roaming problem of the scope littler than the lane place (such as: between the scope of county town, between campus-wide); Only the user's roaming that is in the border cell is limited, the user who is in non-border cell is had no effect.
To achieve these goals, the invention provides a kind of regional border roaming control method of mobile communication system, this method may further comprise the steps:
Step 1, the border roaming parameter is set on subscriber card, the border roaming that border cell is set in wireless network side is forbidden parameter;
Step 3, portable terminal receive broadcast, border roaming in the broadcast is forbidden that the border roaming parameter on the subscriber card that parameter and this portable terminal use compares, if border roaming forbids containing in the parameter border roaming parameter, then portable terminal does not reside at current area.
Described step 3 can specifically comprise:
Steps A 1, described mobile terminal-opening are sought candidate cell;
Steps A 3, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step A5 then, otherwise, execution in step A4;
Steps A 4, portable terminal are deleted current area from candidate cell, execution in step A2;
Steps A 5, portable terminal are resident to current candidate cell.
Described step 3 also can specifically comprise:
Step B1, described mobile terminal-opening are searched for the sub-district of storing in this portable terminal, if searched, and execution in step B2, otherwise, execution in step B5;
Step B2, portable terminal receive the broadcast of the sub-district of this storage;
Step B3, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and satisfy border roaming in this cell broadcast messages and forbid that parameter does not contain the border roaming parameter on the subscriber card that this portable terminal uses, if, execution in step B9 then, otherwise, execution in step B4;
Step B4, portable terminal with the sub-district in this sub-district adjacent cell list as candidate cell, execution in step B6;
Step B5, mobile terminal seeking candidate cell;
Step B6, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Step B7, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step B9 then, otherwise, execution in step B8;
Step B8, portable terminal are deleted current area from candidate cell, execution in step B6;
Step B9, the resident current area that arrives of portable terminal.
Described step 3 also can specifically comprise:
The signal strength signal intensity that step C1, described portable terminal detect an adjacent sub-district reaches the triggering cell reselection conditions, receives the broadcast of this neighbour sub-district;
Step C2, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step C3 then, otherwise, execution in step C4;
Step C3, portable terminal continue resident to adjacent sub-district;
Step C4, portable terminal reside in former sub-district.
When described mobile communication system is gsm system, described subscriber card is a SIM card, on SIM card, adopt the grade 11-15 of access control rank field to characterize the border roaming parameter, adopt the grade 11-15 of access control rank field to characterize border roaming at wireless network and forbid parameter.When described mobile communication system is the 3G system, described subscriber card is a usim card, on usim card, adopt the grade 11-15 of access control rank field to characterize the border roaming parameter, adopt the grade 11-15 of access control rank field to characterize border roaming at wireless network and forbid parameter.
The invention allows for a kind of regional border roaming control method of gsm communication system, this method may further comprise the steps:
Step 1, the border roaming parameter is set on SIM card, the border roaming that border cell is set in wireless network side is forbidden parameter;
Behind step 3, the mobile terminal-opening, seek candidate cell;
Step 4, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Step 5, portable terminal judge whether this sub-district satisfies the resident criterion in GSM sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the portable terminal SIM card, if then execution in step 7, otherwise, execution in step 6;
Step 6, portable terminal are deleted current area from candidate cell, execution in step 4;
Step 7, portable terminal are resident to current candidate cell.
The present invention has reintroduced a kind of regional border roaming control method of gsm communication system, and this method may further comprise the steps:
Step 1, the border roaming parameter is set on SIM card, the border roaming that border cell is set in wireless network side is forbidden parameter;
Step 3, mobile terminal-opening are searched for the sub-district of storing in this portable terminal, if searched, and execution in step 4, otherwise, execution in step 7;
Step 4, portable terminal receive the broadcast of the sub-district of this storage;
Step 5, portable terminal judge whether this sub-district satisfies the resident criterion in GSM sub-district, and satisfy border roaming in this cell broadcast messages and forbid that parameter does not contain the border roaming parameter on the SIM card that this portable terminal uses, if then execution in step 11, otherwise, execution in step 6;
Step 6, portable terminal with the sub-district in this sub-district adjacent cell list as candidate cell, execution in step 8;
Step 7, mobile terminal seeking candidate cell;
Step 8, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Step 9, portable terminal judge whether this sub-district satisfies the resident criterion in GSM sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the portable terminal SIM card, if then execution in step 11, otherwise, execution in step 10;
Step 10, portable terminal are deleted current area from candidate cell, execution in step 8;
Step 11, the resident current area that arrives of portable terminal.
The present invention has proposed a kind of regional border roaming control method of gsm communication system again, and this method may further comprise the steps:
Step 1, the border roaming parameter is set on SIM card, the border roaming that border cell is set in wireless network side is forbidden parameter;
The signal strength signal intensity that step 3, the portable terminal that resides in a certain border cell detect an adjacent sub-district reaches the condition of triggering cell gravity treatment, receives the broadcast of this neighbour sub-district;
Step 4, portable terminal judge whether this sub-district satisfies the resident criterion in GSM sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the portable terminal SIM card, if then execution in step 5, otherwise, execution in step 6;
Step 5, portable terminal continue resident to this neighbour sub-district;
Step 6, portable terminal reside in this border cell.
The present invention provides a kind of regional border roaming control method of 3G communication system again, and this method may further comprise the steps:
Step 1, the border roaming parameter is set on usim card, the border roaming that border cell is set in wireless network side is forbidden parameter;
Behind step 3, the mobile terminal-opening, seek candidate cell;
Step 4, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Step 5, portable terminal judge whether this sub-district satisfies the resident criterion in 3G sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not contain the border roaming parameter on the portable terminal usim card, if then execution in step 7, otherwise, execution in step 6;
Step 6, portable terminal are deleted current area from candidate cell, execution in step 4;
Step 7, portable terminal are resident to current candidate cell.
The present invention provides a kind of regional border roaming control method of 3G communication system again, and this method may further comprise the steps:
Step 1, the border roaming parameter is set on usim card, the border roaming that border cell is set in wireless network side is forbidden parameter;
Step 3, mobile terminal-opening are searched for the sub-district of storing in this portable terminal, if searched, and execution in step 4, otherwise, execution in step 7;
Step 4, portable terminal receive the broadcast of the sub-district of this storage;
Step 5, portable terminal judge whether this sub-district satisfies the resident criterion in 3G sub-district, and satisfy border roaming in this cell broadcast messages and forbid that parameter does not contain the border roaming parameter on the usim card that this portable terminal uses, if then execution in step 11, otherwise, execution in step 6;
Step 6, portable terminal with the sub-district in this sub-district adjacent cell list as candidate cell, execution in step 8;
Step 7, mobile terminal seeking candidate cell;
Step 8, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Step 9, portable terminal judge whether this sub-district satisfies the resident criterion in 3G sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the portable terminal usim card, if then execution in step 11, otherwise, execution in step 10;
Step 10, portable terminal are deleted current area from candidate cell, execution in step 8:
Step 11, the resident current area that arrives of portable terminal.
The present invention also provides a kind of regional border roaming control method of 3G communication system, and this method may further comprise the steps:
Step 1, the border roaming parameter is set on usim card, the border roaming that border cell is set in wireless network side is forbidden parameter;
The signal strength signal intensity that step 3, the portable terminal that resides in a certain border cell detect an adjacent sub-district reaches the condition of triggering cell gravity treatment, receives the broadcast of this neighbour sub-district;
Step 4, portable terminal judge whether this sub-district satisfies the resident criterion in 3G sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the portable terminal USIM, if then execution in step 5, otherwise, execution in step 6;
Step 5, portable terminal continue resident to this neighbour sub-district;
Step 6, portable terminal reside in this border cell.
The present invention has realized that with sub-district or cell cluster be dividing unit, whether the travelling carriage in regional cell boarder control idle condition is resident in certain sub-district, need not change existing charge system, need not blur charging, bring loss can for the rate of operator, not increase mobile network's signaling traffic load; Roaming control can be as accurate as the sub-district, can be used for solving the interregional border roaming problem of the scope littler than the lane place (such as: between the scope of county town, between campus-wide); Only the user's roaming that is in the border cell is limited, the user who is in non-border cell is had no effect.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a mobile communication system regional border roaming control method flow chart of the present invention;
Fig. 2 is the border roaming control method flow chart in the resident stage of mobile terminal-opening of start first of the present invention;
Fig. 3 is the non-border roaming control method flow chart in the resident stage of mobile terminal-opening of start first of the present invention;
Fig. 4 is the border roaming control method flow chart in portable terminal of the present invention sub-district gravity treatment stage;
The regional border roaming control method flow chart in the resident stage of mobile terminal-opening that Fig. 5 starts shooting first for gsm communication system of the present invention;
Fig. 6 is three province's message area border schematic diagrames;
Fig. 7 is the non-regional border roaming control method flow chart in the resident stage of mobile terminal-opening of start first of gsm communication system of the present invention;
Fig. 8 is the gsm communication system portable terminal of the present invention regional border roaming control method flow chart in sub-district gravity treatment stage;
The regional border roaming control method flow chart in the resident stage of mobile terminal-opening that Fig. 9 starts shooting first for 3G communication system of the present invention;
Figure 10 is the non-regional border roaming control method flow chart in the resident stage of mobile terminal-opening of start first of 3G communication system of the present invention;
Figure 11 is the regional border roaming control method flow chart in 3G communication system portable terminal sub-district gravity treatment stage of the present invention.
Embodiment
Whether the present invention is an area dividing unit with sub-district or cell cluster, resident in certain sub-district at the portable terminal of regional cell boarder control idle condition.As shown in Figure 1, be regional border roaming control method flow chart of the present invention, this method may further comprise the steps:
Step 1, the border roaming parameter is set on subscriber card, the border roaming that border cell is set in wireless network side is forbidden parameter;
Step 3, portable terminal receive broadcast, border roaming in the broadcast is forbidden that the border roaming parameter on the subscriber card that parameter and this portable terminal use compares, if border roaming forbids containing in the parameter border roaming parameter, then portable terminal does not reside at current area.
For the start terminal in back resident stage of sub-district, if the parameter of forbidding the border roaming of network contains this terminal use and blocks the border roaming parameter of setting, then terminal is in carrying out the resident process in existing sub-district, with not current area as its resident candidate cell; If relatively find, the border roaming of network forbids that parameter does not contain this terminal use and blocks the border roaming parameter of setting, and then terminal will be carried out the resident process in existing sub-district.For the portable terminal of starting shooting first, there is not the cell information of storage in the terminal, therefore to carry out Cell searching after the start, the searching candidate cell.As shown in Figure 2, be the border roaming control method flow chart in resident stage of mobile terminal-opening of start first, comprise the steps:
Steps A 1, described mobile terminal-opening are sought candidate cell;
Steps A 2, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Steps A 3, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step A5 then, otherwise, execution in step A4;
Steps A 4, portable terminal are deleted current area from candidate cell, execution in step A2;
Steps A 5, portable terminal are resident to current candidate cell.
In above-mentioned steps, judge that border roaming forbids whether parameter contains the step of border roaming parameter, whether satisfies the step of the resident criterion in sub-district and does not have sequencing with judging the sub-district, also can judge the latter earlier.
For the non-portable terminal of start first, store the preceding resident cell information of shutdown last time in the terminal, therefore, earlier judge whether this sub-district can be resident, as shown in Figure 3, for the non-border roaming control method flow chart in the resident stage of mobile terminal-opening of start first, comprise the steps:
Step B1, described mobile terminal-opening are searched for the sub-district of storing in this portable terminal, if searched, and execution in step B2, otherwise, execution in step B5;
Step B2, portable terminal receive the broadcast of the sub-district of this storage;
Step B3, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and satisfy border roaming in this cell broadcast messages and forbid that parameter does not contain the border roaming parameter on the subscriber card that this portable terminal uses, if, execution in step B9 then, otherwise, execution in step B4;
Step B4, portable terminal with the sub-district in this sub-district adjacent cell list as candidate cell, execution in step B6;
Step B5, mobile terminal seeking candidate cell;
Step B6, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Step B7, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step B9 then, otherwise, execution in step B8;
Step B8, portable terminal are deleted current area from candidate cell, execution in step B6;
Step B9, the resident current area that arrives of portable terminal.
In above-mentioned steps, judge that border roaming forbids whether parameter contains the step of border roaming parameter, whether satisfies the step of the resident criterion in sub-district and does not have sequencing with judging the sub-district, also can judge the latter earlier.
Terminal for the sub-district gravity treatment stage, if the parameter of forbidding property border roaming in network area contains this terminal use and blocks the regional border roaming parameter of setting, then terminal is in carrying out existing cell reselection process, and travelling carriage will be the Target cell of current area as its gravity treatment; If relatively find, property border roaming in network area forbids that parameter does not contain this terminal use and blocks the regional border roaming parameter of setting, and then terminal will be carried out existing cell reselection process.As shown in Figure 4, the border roaming control method flow chart for the portable terminal sub-district gravity treatment stage comprises the steps:
The signal strength signal intensity that step C1, described portable terminal detect an adjacent sub-district reaches the triggering cell reselection conditions, receives the broadcast of this neighbour sub-district;
Step C2, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step C3 then, otherwise, execution in step C4;
Step C3, portable terminal continue resident to this neighbour sub-district;
Step C4, portable terminal reside in former sub-district.
Be example with gsm system and 3G system respectively below, describe adopting the ACC parameter to solve inter-provincial border roaming problem, but the regional border roam control method of mobile communication system of the present invention, can be applicable in all cell mobile communication systemses, be not limited to gsm system and 3G system, be not limited to inter-provincial roaming, be not limited to the ACC parameter and realize.
At gsm system, subscriber card is a SIM card, uses the grade 11-15 of existing ACC (access control grade) field on the SIM card to characterize SIM card regional border roaming parameter; Wireless network uses on the network grade 11-15 of existing ACC (access control grade) field to characterize network area property border roaming to forbid parameter.
As shown in Figure 5, the regional border roaming control method flow chart in the resident stage of mobile terminal-opening of starting shooting first for gsm communication system comprises the steps:
Behind step 103, the mobile terminal-opening, seek candidate cell;
Judge that border roaming forbids whether parameter contains the step of border roaming parameter, with judge the sub-district and whether satisfy the step of the resident criterion in sub-district and do not have sequencing, when two conditions all satisfy, just can be resident in current area, as long as have one not satisfy, will continue other candidate cells are judged.
Be example with the GSM user who is in three cell boarders that adhere to three province's message areas separately below, the regional border roaming control method in the resident stage of mobile terminal-opening of starting shooting first in gsm communication system is described.
As shown in Figure 6, be three province's message area border schematic diagrames, adjacent x, y and z adhere to three sub-districts X separately and economize message area, Y economizes message area and Z province message area.X is economized user's SIM card ACC be made as 13, Y economizes user's SIM card ACC and is made as 11, and Z economizes user's SIM card ACC and is made as 12; The ACC that X economizes the border cell cell x is made as 11,12; The ACC that Y economizes border cell sub-district y is made as 12,13; The ACC that Z economizes border cell sub-district z is made as 11,13.
Suppose that the X district uses the X frequency; The Y district uses the Y frequency, and the Z district uses the Z frequency.Putative signal intensity Y frequency＞X frequency＞Z frequency, and all satisfy the resident C1 criterion in GSM sub-district.
When terminal is started shooting first, terminal will be sought all frequencies that current mobile network allows, i.e. X frequency, Y frequency and Z frequency, with cell x, sub-district y and sub-district z as candidate cell.
The frequency that terminal is sought the signal strength signal intensity maximum synchronously and read the broadcast of this frequency; Y frequency signal strength signal intensity maximum, terminal will be synchronized to the Y frequency earlier, and reads the broadcast of sub-district y.
Terminal judges that according to the broadcast of sub-district y and signal strength signal intensity this sub-district satisfies the C1 criterion, and the ACC that therefrom obtains this border cell is 12,13; Terminal compares the ACC of the sub-district y network side that obtains and the ACC that SIM card is carried, and finds that the ACC of sub-district y network survey contains the ACC (13) of SIM card, and therefore, terminal thinks that current area y can not be resident, and y deletes from candidate cell with the sub-district.Thereby terminal can not reside at the sub-district of non-attribution when being in border cell.
Terminal is synchronized on the inferior high X frequency of signal strength signal intensity tuning, reads the broadcast of cell x.
Terminal judges that according to the broadcast of cell x this sub-district satisfies the C1 criterion, and therefrom, the ACC that obtains cell x is 11,12; Terminal compares the ACC of the cell x network side that obtains and the ACC that SIM card is carried, and find that the ACC of cell x network survey does not contain the ACC (13) of SIM card, thereby cell x satisfies two Rule of judgment simultaneously, so terminal thinks that current area x can be resident;
Terminal with resident in cell x.
For the non-portable terminal of start first, because when shutting down last time, stored the frequency point information of using before the shutdown in the portable terminal, therefore earlier judge whether this frequency corresponding district can be resident, as shown in Figure 7, for the non-regional border roaming control method flow chart in the resident stage of mobile terminal-opening of start first of gsm communication system, comprise the steps:
Step 202, wireless network are forbidden parameter by the border roaming of broadcast broadcast cell;
Step 205, portable terminal judge whether this sub-district satisfies the resident C1 criterion in GSM sub-district, and satisfy border roaming in this cell broadcast messages and forbid that parameter does not contain the border roaming parameter on the SIM card that this portable terminal uses, if then execution in step 211, otherwise, execution in step 206;
Step 208, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Be example with the GSM user who is in three cell boarders that adhere to three province's message areas separately below, the non-regional border roaming control method in the resident stage of mobile terminal-opening of start first in gsm communication system is described.
During starting up of terminal, terminal will at first be searched for the frequency of having stored, if terminal searching less than, then to start shooting first similar, the search candidate cell; Then read the broadcast of this sub-district if searched this frequency.Suppose that belonging to the frequency that uses before the terminal closedown that X economizes is the X frequency, then behind the starting up of terminal earlier be tuned to the X frequency, read the broadcast of cell x.
Terminal judges that according to the broadcast of cell x and signal strength signal intensity this sub-district satisfies the C1 criterion, and therefrom, the ACC that obtains cell x is 11,12; Terminal compares the ACC of the cell x network side that obtains and the ACC that SIM card is carried, and find that the ACC of cell x network survey does not contain the ACC (13) of SIM card, thereby cell x satisfies two Rule of judgment simultaneously, so terminal thinks that current area x can be resident;
Terminal with resident in cell x.
If terminal was in roaming state when shutting down last time, for example, the terminal that belongs to X province was in the state that Y economizes the message area roaming when shutting down last time, and when starting shooting once more, this terminal is in the three cell boarder sub-districts of adhering to three province's message areas separately as shown in Figure 5, terminal is when this is started shooting so, earlier be tuned to the Y frequency, and read the broadcast of sub-district y.
Terminal judges that according to the broadcast of sub-district y this sub-district satisfies the C1 criterion, and therefrom, the ACC that obtains sub-district y is 12,13; Terminal compares the ACC of the sub-district y network side that obtains and the ACC that SIM card is carried, and find that the ACC of sub-district y network survey contains the ACC (13) of SIM card, thereby sub-district y can not be resident.Thereby terminal can not reside at the sub-district of non-attribution when being in border cell.
Terminal continues to select cell x from the adjacent cell list of sub-district y, reads the broadcast of cell x, and the ACC that obtains cell x is 11,12; Terminal compares the ACC of the cell x network side that obtains and the ACC that SIM card is carried, and find that the ACC of cell x network survey does not contain the ACC (13) of SIM card, thereby cell x satisfies two conditions simultaneously, and terminal thinks that cell x can be resident, and resides at cell x.
As shown in Figure 8, the regional border roaming control method flow chart for the gsm communication system portable terminal sub-district gravity treatment stage comprises the steps:
The signal strength signal intensity that step 303, the portable terminal that resides in a certain border cell detect an adjacent sub-district reaches the condition of triggering cell gravity treatment, receives the broadcast of this neighbour sub-district;
Be example still below, the regional border roaming control method in portable terminal sub-district gravity treatment stage in the gsm system is described with the GSM user who is in three cell boarders that adhere to three province's message areas separately.
It is the same that the border roaming parameter of SIM card and the border roaming of wireless network forbid that parameter is provided with.Suppose that the user is initially at boundary and resides in cell x, signal strength signal intensity Y frequency＞X frequency, and the signal strength signal intensity of X, Y frequency reaches the condition that triggering terminal is carried out the sub-district gravity treatment.
Terminal initially resides in cell x at boundary, and measure the adjacent cell signal level of the adjacent cell list that the cell x broadcast issues, the signal level of the cell x in measuring adjacent sub-district reaches triggering terminal when carrying out the condition of sub-district gravity treatment, and terminal will read the broadcast of Y frequency.
Terminal is from the broadcast of sub-district y, and the ACC that obtains sub-district y is 12,13; Terminal compares the ACC of the sub-district y network side that obtains and the ACC that SIM card is carried, and finds that the ACC of sub-district y network side contains the ACC (13) of SIM card, therefore thinks that current area y can not be as the Target cell of gravity treatment; Terminal is returned on the original resident X frequency, continues to reside on the cell x.Thereby, make terminal when border cell, can in cell reselection process, not reside at the sub-district of non-attribution.
Be that example illustrates regional border roaming control method of the present invention with the 3G communication system below.
In the 3G communication system, subscriber card adopts usim card, uses the grade 11-15 of existing ACC (access control grade) field on the usim card to characterize usim card regional border roaming parameter; Wireless network uses on the network grade 11-15 of existing ACC (access control grade) field to characterize network area property border roaming to forbid parameter.
As shown in Figure 9, the regional border roaming control method flow chart in the resident stage of mobile terminal-opening of starting shooting first for the 3G communication system comprises the steps:
Behind step 403, the mobile terminal-opening, seek candidate cell;
Judge that border roaming forbids whether parameter contains the step of border roaming parameter, with judge the sub-district and whether satisfy the step of the resident criterion in sub-district and do not have sequencing, when two conditions all satisfy, just can be resident in current area, as long as have one not satisfy, will continue other candidate cells are judged.
Be example with the 3G subscription that is in three cell boarders that adhere to three province's message areas separately below, the regional border roaming control method in the resident stage of mobile terminal-opening of starting shooting first in the 3G communication system is described.
Suppose to economize the message area border still as shown in Figure 6, X economizes user's usim card ACC and is made as 13, and Y economizes user's usim card ACC and is made as 11, and Z economizes user's usim card ACC and is made as 12; The ACC that X economizes the border cell cell x is made as 11,12, and the ACC that Y economizes border cell sub-district y is made as 12,13, and the ACC that Z economizes border cell sub-district z is made as 11,13.
Putative signal intensity sub-district y＞cell x＞sub-district z, and all satisfy the resident S criterion in 3G sub-district.
When terminal is started shooting first, terminal will be sought the mobile network who allows, and the sub-district of seeking the signal strength signal intensity maximum synchronously and read the broadcast of this sub-district; Sub-district y signal strength signal intensity maximum, terminal will be synchronized to sub-district y earlier, reads the broadcast of sub-district y.Terminal is known PLMN number of current network from the management information bank of sub-district y (ManagementInformation Base is called for short MIB), judge that current network can use, and definite x, y, three sub-districts of z are candidate cell
Then, in the broadcast of terminal sub-district y of signal strength signal intensity maximum from candidate cell, judge that sub-district y satisfies the resident S criterion in 3G sub-district, the ACC that obtains sub-district y is 12,13, the ACC of the sub-district y network side that obtains and ACC that usim card carries are compared, find that the ACC of sub-district y network survey contains the ACC (13) of usim card, terminal thinks that current area y can not be resident, and y deletes from candidate cell with the sub-district.Thereby terminal can not reside at the sub-district of non-attribution when border cell.
Terminal will be synchronized on the inferior high cell x of signal strength signal intensity, read the broadcast of cell x.
Terminal is from the broadcast of cell x, and the ACC that obtains cell x is 11,12; Terminal compares the ACC of the cell x network side that obtains and the ACC that usim card carries, and finds that the ACC of cell x network survey does not contain the ACC (13) of usim card, and cell x satisfies the resident S criterion in sub-district of 3G system, and terminal thinks that current area x can be resident.
Terminal with resident in cell x.
As shown in figure 10, for the non-regional border roaming control method flow chart in the resident stage of mobile terminal-opening of start first of 3G communication system, comprise the steps:
Step 504, portable terminal receive the broadcast of the sub-district of this storage;
Be example with the 3G subscription that is in three cell boarders that adhere to three province's message areas separately below, the non-regional border roaming control method in the resident stage of mobile terminal-opening of start first in the 3G communication system is described.
During starting up of terminal, terminal will at first be searched for the sub-district of having stored, if the search less than, then to terminal start shooting first similar, the search candidate cell; If searched sub-district, then read the broadcast of this sub-district with storage.Suppose that belonging to the frequency that uses before the terminal closedown that X economizes is the X frequency, then behind the starting up of terminal earlier be tuned to the X frequency, read the broadcast of cell x.
Terminal judges that according to the broadcast of cell x and signal strength signal intensity this sub-district satisfies the resident S criterion in 3G sub-district, and therefrom, the ACC that obtains cell x is 11,12; Terminal compares the ACC of the cell x network side that obtains and the ACC that usim card carries, and find that the ACC of cell x network survey does not contain the ACC (13) of usim card, thereby cell x satisfies two Rule of judgment simultaneously, so terminal thinks that current area x can be resident;
Terminal with resident in cell x.
If terminal was in roaming state when shutting down last time, for example, belonging to terminal that X economizes was in Z and economizes to charge and remove the state roamed when shutting down last time, and when starting shooting once more, this terminal is in the three cell boarder sub-districts of adhering to three province's message areas separately as shown in Figure 5, terminal is when this is started shooting so, earlier be tuned to the Z frequency, and read the broadcast of sub-district z.
Terminal judges that according to the broadcast of sub-district z and signal strength signal intensity this sub-district satisfies the resident S criterion in 3G sub-district, and therefrom, the ACC that obtains sub-district z is 11,13; Terminal compares the ACC of the sub-district z network side that obtains and the ACC that SIM card is carried, and find that the ACC of sub-district z network survey contains the ACC (13) of SIM card, thereby sub-district z can not be resident.
Terminal continues to select sub-district y from the adjacent cell list of sub-district z, reads the broadcast of sub-district y, and the ACC that obtains sub-district y is 12,13; Terminal compares the ACC of the sub-district y network side that obtains and the ACC that SIM card is carried, and find that the ACC of sub-district y network survey contains the ACC (13) of SIM card, thereby sub-district y can not be resident.Thereby terminal can not reside at the sub-district of non-attribution when being in border cell.
Terminal continues to select cell x from the adjacent cell list of sub-district z, reads the broadcast of cell x, and the ACC that obtains cell x is 11,12; Terminal compares the ACC of the cell x network side that obtains and the ACC that SIM card is carried, and find that the ACC of cell x network survey does not contain the ACC (13) of SIM card, thereby cell x satisfies two conditions simultaneously, and terminal thinks that cell x can be resident, and resides at cell x.
As shown in figure 11, for the 3G communication system portable terminal regional border roaming control method flow chart in sub-district gravity treatment stage, comprise the steps:
The signal strength signal intensity that step 603, the portable terminal that resides in a certain border cell detect an adjacent sub-district reaches the condition of triggering cell gravity treatment, receives the broadcast of this neighbour sub-district;
Be example with the 3G subscription that is in three cell boarders that adhere to three province's message areas separately below, the regional border roaming control method in portable terminal sub-district gravity treatment stage in the 3G system is described.
Suppose that terminal initial resides at the cell x of boundary, signal strength signal intensity sub-district y＞cell x, and the signal strength signal intensity of sub-district y reaches the condition that triggering terminal is carried out the sub-district gravity treatment.
Terminal initially resides in cell x at boundary, and measurement is by the signal level of adjacent sub-district in the adjacent cell list of cell x broadcast transmission, when the signal strength signal intensity of the sub-district y in finding adjacent sub-district reaches triggering terminal and carries out the condition of sub-district gravity treatment greater than cell x and signal strength signal intensity, terminal will read the broadcast of sub-district y with sub-district y synchronously.
Terminal is from the broadcast of sub-district y, and the ACC that obtains sub-district y is 12,13; Terminal compares the ACC of the sub-district y network side that obtains and the ACC that usim card carries, find that the ACC of sub-district y network side contains the ACC (13) of usim card, terminal thinks that current area y can not be as the Target cell of gravity treatment, and terminal will be returned on the original resident cell x.Thereby, when terminal is in border cell, can be owing to the sub-district gravity treatment resides at the non-attribution sub-district.
Above-mentioned subscriber card border roaming parameter is set and the wireless network border roaming forbids that the step of parameter need not repeat, and the ACC parameter that only needs to contain the border roaming parameter once when making subscriber card writes, and at network side, when carrying out setting that border roaming forbids parameter accordingly and can or carry out the sub-district gravity treatment at every turn, all can utilize these parameters to carry out border roaming control in the each start of terminal.
When being used for the distinctive charging in the zone littler, also only need to dispose the roaming of this zonule border cell and forbid that parameter gets final product according to the needs that charge than province's message area scope.For example, if will realize that the rate of student user in the campus are preferential, student user's border roaming parameter so only need be set, and the border roaming of relative set campus border cell is forbidden parameter.
Border roaming parameter and border roaming forbid that parameter is not limited to employing ACC parameter and realizes, also can adopt other modes to realize, for example, increase a parameter newly, are specifically designed to border roaming control.
The present invention has realized that the control portable terminal does not reside in and do not wish on its other resident regional border cells, thereby the signal that has solved another regional sub-district of CU of regional border sub-district has carried out roaming call, the customer complaint of Chan Shenging therefrom, rate processing, the increase of network operation cost or the like problems; Need not change existing charge system, need not blur charging, bring loss can for the rate of operator, not increase mobile network's signaling traffic load; Roaming control can be as accurate as the sub-district, can be used for solving the interregional border roaming problem of the scope littler than the lane place (such as: between the scope of county town, between campus-wide); Only the user's roaming that is in the border cell is limited, the user who is in non-border cell is had no effect.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field should be appreciated that still and can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (8)
1, a kind of regional border roaming control method of mobile communication system is characterized in that, this method may further comprise the steps:
Step 1, the border roaming parameter is set on subscriber card, the border roaming that border cell is set in wireless network side is forbidden parameter;
Step 2, wireless network are forbidden parameter by the border roaming of broadcast broadcasting border cell;
Step 3, portable terminal receive broadcast, judge that border roaming in the broadcast forbids whether parameter contains the border roaming parameter on the subscriber card that this portable terminal uses, and as if containing, then portable terminal does not reside at current area.
2, method according to claim 1 is characterized in that, described step 3 is specially:
Steps A 1, described mobile terminal-opening are sought candidate cell;
Steps A 2, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Steps A 3, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, if and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card., execution in step A5 then, otherwise, execution in step A4;
Steps A 4, portable terminal are deleted current area from candidate cell, execution in step A2;
Steps A 5, portable terminal are resident to current candidate cell.
3, method according to claim 1 is characterized in that, described step 3 is specially:
Step B1, described mobile terminal-opening are searched for the sub-district of storing in this portable terminal, if searched, and execution in step B2, otherwise, execution in step B5;
Step B2, portable terminal receive the broadcast of the sub-district of this storage;
Step B3, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and satisfy border roaming in this cell broadcast messages and forbid that parameter does not contain the border roaming parameter on the subscriber card that this portable terminal uses, if, execution in step B9 then, otherwise, execution in step B4;
Step B4, portable terminal with the sub-district in this sub-district adjacent cell list as candidate cell, execution in step B6;
Step B5, mobile terminal seeking candidate cell;
Step B6, portable terminal receive the broadcast of the sub-district of signal strength signal intensity maximum in the candidate cell;
Step B7, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step B9 then, otherwise, execution in step B8;
Step B8, portable terminal are deleted current area from candidate cell, execution in step B6;
Step B9, the resident current area that arrives of portable terminal.
4, method according to claim 1 is characterized in that described step 3 is specially:
The signal strength signal intensity that step C1, described portable terminal detect an adjacent sub-district reaches the triggering cell reselection conditions, receives the broadcast of this neighbour sub-district;
Step C2, portable terminal judge whether this sub-district satisfies the resident criterion in sub-district, and the border roaming that satisfies in this cell broadcast messages forbids that parameter does not comprise the border roaming parameter on the mobile phone users card, if, execution in step C3 then, otherwise, execution in step C4;
Step C3, portable terminal continue resident to this neighbour sub-district;
Step C4, portable terminal reside in former sub-district.
5, according to the arbitrary described method of claim 1-4, it is characterized in that, described mobile communication system is a gsm system, described subscriber card is a SIM card, on SIM card, adopt the grade 11-15 of access control rank field to characterize the border roaming parameter, adopt the grade 11-15 of access control rank field to characterize border roaming at wireless network and forbid parameter.
6, according to the arbitrary described method of claim 1-4, it is characterized in that, described mobile communication system is the 3G system, described subscriber card is a usim card, on usim card, adopt the grade 11-15 of access control rank field to characterize the border roaming parameter, adopt the grade 11-15 of access control rank field to characterize border roaming at wireless network and forbid parameter.
According to claim 2 or 3 or 4 described methods, it is characterized in that 7, described mobile communication system is a gsm communication system, described subscriber card is a SIM card, and the resident criterion in described sub-district is the resident criterion in GSM sub-district.
According to claim 2 or 3 or 4 described methods, it is characterized in that 8, described mobile communication system is the 3G communication system, described subscriber card is a usim card, and the resident criterion in described sub-district is the resident criterion in 3G sub-district.
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| CN101094516B (en) * | 2007-07-20 | 2010-05-19 | 中国移动通信集团福建有限公司 | Automatic tracking system for borderline roam on adjacent cells |
| CN101345973B (en) * | 2008-09-01 | 2012-07-11 | 中国移动通信集团山东有限公司 | Method and system for network optimization and regulation through community cluster in communication network |
| CN101404805B (en) * | 2008-11-05 | 2011-05-18 | 中国移动通信集团江苏有限公司 | Method for finding out network edge roaming problem through call bill depth excavation |
| WO2012009865A1 (en) * | 2010-07-21 | 2012-01-26 | Liu Wuqiang | Method and system for achieving accurate charging for mobile station in the border roaming area |
| CN110225507B (en) * | 2019-03-28 | 2021-12-21 | 烽火通信科技股份有限公司 | Cell locking method for terminal equipment and terminal equipment |
| CN110602765B (en) * | 2019-10-11 | 2021-10-01 | 中国联合网络通信集团有限公司 | Network selection method and device |
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