CN101137223A - Base station, frequency band load regulation means and system in multi-frequency band network - Google Patents
Base station, frequency band load regulation means and system in multi-frequency band network Download PDFInfo
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- CN101137223A CN101137223A CNA2007100772488A CN200710077248A CN101137223A CN 101137223 A CN101137223 A CN 101137223A CN A2007100772488 A CNA2007100772488 A CN A2007100772488A CN 200710077248 A CN200710077248 A CN 200710077248A CN 101137223 A CN101137223 A CN 101137223A
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Abstract
The invention discloses an adjusting method of frequency band load in base stations and mulit-band networks and a system thereof. The adjusting method of frequency band load in mulit-band networks comprises following steps: calculating each frequency band load in mulit-band networks; acquiring the frequency band with the highest load and the frequency band with the lowest load, and calculating load difference of the frequency band with the highest load and the frequency band with the lowest load; judging the load difference whether or not exceeding the predetermined value, if yes, relocating a designated mulit-band terminal of the frequency band with the highest load to the the frequency band with the lowest load. The invention can do self-adapting adjustment of load between frequency bands in mulit-band networks, makes load balance between frequency bands.
Description
Technical field
The invention belongs to wireless communication field, relate in particular to the method for adjustment and the system of the frequency range load in a kind of base station, the multi-frequency network.
Background technology
In the cordless communication network process of construction, different frequency ranges may be used in different regions, the different frequency range of the general division of different communication standards.Yet the resource of a frequency range is limited, needs a plurality of frequency range stack networkings sometimes.Such as, because the 450M band characteristic is that covering is distant, be suitable for scarcely populated area, general growing up in the rural area earlier; And general the beginning from the city earlier of 800M frequency range built; In city densely populated, that telephone traffic is very big, need two frequency range stack networkings, enough frequency resources are just arranged.As shown in Figure 1,5 frequencies of 800M frequency range are used in some areas, and 3 frequencies of 450M frequency range are used in some areas, and 8 frequencies are used in the very big area of telephone traffic simultaneously.
The frequency range of using according to network is divided into the zone:
● 800M ghz area (a-quadrant)
● 450M ghz area (C zone)
● 800M 450M frequency range overlap-add region (B zone).
According to terminal band support situation terminal is divided into:
● only support the terminal of 800M frequency range, 800M one-segment terminal;
● only support the terminal of 450M frequency range, 450M one-segment terminal;
● not only support the 800M frequency range but also supported the terminal of 450M frequency range, the two-band terminal;
● not only support the 800M frequency range but also support the 450M frequency range, also support the terminal of other frequency ranges, multiband terminal.
800M one-segment terminal and two-band terminal all can be used in the a-quadrant; 450M one-segment terminal and two-band all can be used in the C zone; And in the B zone, 450M one-segment terminal, 800M one-segment terminal and two-band terminal all can be used in the B zone.
Following emphasis is considered the situation of two or more frequency range stack networkings, as shown in Figure 1.800M one-segment terminal can only go up 5 frequencies of 800M frequency range; 450M one-segment terminal can only go up 3 frequencies of 450M frequency range; And two-band terminal or multiband terminal both can above 800M frequency range frequency also can above 450M frequency range frequency.
At CDMA (Code Division Multiple Acess, code division multiple access) in the agreement, frequency list message (CCLM (CDMA Channel List Message, CDMA Channel tabulation) ECCLM (Extended CDMA Channel List Message, the tabulation of expansion CDMA Channel)) can not carry band class information.And, the one-segment terminal can not support CCLM ECCLM comprise a plurality of frequency ranges.The CCLM/ECCLM list of fields that defines in the agreement is as shown in the table.
| Field | Length(bits) |
| PILOT?PN | 9 |
| CONFIG_MSG_SEQ | 6 |
| NUM_FREQ | 4 |
| NUM_FREQ?occurrences?of?the?following?field: | |
| |
11 |
Terminal is to calculate the frequency of oneself waiting for according to the frequency tabulation that sends among the CCLM by hash algorithm after the online of search frequency.In the networking as shown in Figure 1, in the a-quadrant, CCLM can only comprise 5 frequencies such as 242,201,283,78,119 among the ECCLM at most and (not necessarily comprise all 5 frequencies, can only comprise a part), support the terminal of 800M frequency range to pass through hash algorithm, calculate the frequency that oneself will wait for according to frequency tabulation and IMSI (International Mobile Station Identifier, International Mobile Subscriber Identity), change then and go to monitor corresponding paging channel; In the C zone, CCLM can only comprise 3 frequencies such as 260,210,160 among the ECCLM at most, the terminal of supporting the 450M frequency range calculates the frequency that oneself will wait for by hash algorithm according to frequency tabulation and IMSI, changes the paging channel of going to monitor correspondence then; For the B zone, 3 frequencies of 260 grades send among the CCLM/ECCLM and can only carry 260,210,160}, the CCLM that 5 frequencies such as 242 grades send can only carry among the ECCLM 242,201,283,78,119}.800M one-segment terminal by hash algorithm 242,201,283,78, select the frequency oneself wait among the 119}, 450M one-segment terminal by hash algorithm 260,210, select the frequency of oneself waiting among the 160}.And multiband terminal, if search the 800M frequency range, then 242,201,283,78, select the frequency oneself wait among the 119}, if search the 450M frequency range, then 260,210, select the frequency of oneself waiting among the 160}.And search which frequency, relevant with the coverage condition and the terminal behavior of PRL (Prior Roam List, the optimum roaming list) tabulation of terminal, present position.
For with the frequency in the frequency range, because the randomness of hash algorithm, it is balanced can satisfying the terminal quantity of waiting on each frequency.But just produce a problem between the different frequency range: account for overwhelming majority's (surpassing 5/8) if search the terminal of 800M frequency range, then the access channel of 800M frequency range and paging channel load will be higher; Otherwise, occupy the majority (surpassing 3/8) if search the terminal of 450M frequency range, then the access channel of 450M frequency range and paging channel load will be higher.And, terminal set up to call out on the frequency separately enter connected state after, the traffic between two frequency ranges is also unbalanced.
So prior art has proposed the method for adjustment of the frequency range load in a kind of multi-frequency network:
The quantity of one-segment terminal, two-band terminal and multiband terminal by controlling each frequency range realizes the equilibrium between each frequency range, and system does not carry out any scheduling; For the one-segment terminal, can only use frequency points corresponding, control its quantity; For two-band or multiband terminal, by its PRL is set, set preferred frequency, come control terminal internet searching frequency; When distributing telephone numbers, artificially control the quantity of all kinds terminal, to realize the equalizing traffic volume of the balanced and connected state of Idle state between each frequency range.Yet there is following shortcoming in this method:
1, by artificial control all kinds terminal quantity, strengthened the difficulty of market planning, reduced flexibility; Terminal market generally is to be difficult to control;
2, System Expansion need be considered the terminal quantity of potential user on type of user terminal and the market, has increased the difficulty of dilatation;
3, for two-band and multiband terminal, even be provided with preferred frequency, terminal still may search the frequency of other frequency ranges, thereby has upset frequency range planning;
Even 4 have realized the equilibrium between frequency range, the user moves, roams and may break this equilibrium; Network does not have adaptive controlling mechanism.
Prior art has proposed the method for adjustment of the frequency range load in the another kind of multi-frequency network:
At Idle state, make two-band or multiband terminal all be distributed in the relatively abundanter frequency range of frequency resource, realize the equalizing traffic volume of connected state by hard assignment.Yet there is following shortcoming in this method:
1, usually, for the relatively abundanter frequency range of frequency resource, relevant terminal is also many on the market, and this strategy can not guarantee the equilibrium of Idle state;
2, the prerequisite of hard assignment success is the covering-ties uniformity of access carrier and target carrier frequency; In the stack networking, because that different frequency range covers is different, and generally be colocation site not, therefore be difficult to guarantee the consistency that covers;
3, after terminal moves, may make a few Terminal Types concentrate in the sub-district; Such as, the 800M resource of frequency range is abundanter, and two-band or multiband terminal all are distributed on the 800M frequency range, if 800M one-segment terminal, two-band and multiband terminal gather a zone, then produce the traffic overload of 800M frequency range.
Summary of the invention
Embodiment of the invention technical problem to be solved is to provide a kind of can carry out the self adaptation adjustment to the load between the frequency range in the multi-frequency network, makes the base station of load balancing between frequency range, the method for adjustment and the system of the load of the frequency range in the multi-frequency network.
For solving the problems of the technologies described above, the embodiment of the invention provides the method for adjustment of the frequency range load in a kind of multi-frequency network, and it may further comprise the steps:
Calculate the load of each frequency range in the multi-frequency network;
Obtain the highest frequency range of load and the minimum frequency range of load, and calculate the load difference of the minimum frequency range of the highest frequency range of described load and described load;
Judge whether described load difference surpasses predetermined value, if surpass predetermined value, the multiband terminal of appointment is redirected to the minimum frequency range of described load on then that described load is the highest frequency range.
The embodiment of the invention also provides the Adjustment System of the frequency range load in a kind of multi-frequency network, and it comprises:
The load computing module is used for calculating the load of each frequency range of multi-frequency network;
The load difference computing module is used for obtaining the highest frequency range of load and the minimum frequency range of load by the result of calculation of described load computing module, and calculates the load difference of the minimum frequency range of the highest frequency range of described load and described load;
The load difference judge module is used to judge whether the load difference that described load difference computing module calculates surpasses predetermined value;
Redirection module is used for when described load difference judge module judges that described load difference surpasses predetermined value, and the multiband terminal of appointment is redirected to the minimum frequency range of described load on the frequency range that described load is the highest.
The embodiment of the invention also provides a kind of base station, and it comprises the Adjustment System of the frequency range load in the multi-frequency network, and the Adjustment System of the frequency range load in the described multi-frequency network comprises:
The load computing module is used for calculating the load of each frequency range of multi-frequency network;
The load difference computing module is used for obtaining the highest frequency range of load and the minimum frequency range of load by the result of calculation of described load computing module, and calculates the load difference of the minimum frequency range of the highest frequency range of described load and described load;
The load difference judge module is used to judge whether the load difference that described load difference computing module calculates surpasses predetermined value;
Redirection module is used for when described load difference judge module judges that described load difference surpasses predetermined value, and the multiband terminal of appointment is redirected to the minimum frequency range of described load on the frequency range that described load is the highest.
Whether the embodiment of the invention surpasses predetermined value by the load difference of judging the frequency range that frequency range that load is the highest and described load are minimum, if surpass predetermined value, the multiband terminal of appointment is redirected to the minimum frequency range of load on the highest frequency range of then will loading, therefore can carry out the self adaptation adjustment to the load between the frequency range in the multi-frequency network, make load balancing between frequency range.
Description of drawings
Fig. 1 is 800M frequency range and the 450M frequency range stack networking schematic diagram that prior art provides;
Fig. 2 is the method for adjustment flow chart of the frequency range load in the multi-frequency network that provides of first embodiment of the invention;
Fig. 3 is the functional block diagram of the Adjustment System of the frequency range load in the multi-frequency network that provides of first embodiment of the invention;
Fig. 4 is the method for adjustment flow chart of the frequency range load in the multi-frequency network that provides of second embodiment of the invention;
Fig. 5 is the functional block diagram of the Adjustment System of the frequency range load in the multi-frequency network that provides of second embodiment of the invention;
Fig. 6 is the method for adjustment flow chart of the frequency range load in the multi-frequency network that provides of third embodiment of the invention;
Fig. 7 is the functional block diagram of the Adjustment System of the frequency range load in the multi-frequency network that provides of third embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The equilibrium of embodiment of the invention indication is meant that the resource occupation (comprising access channel load (Access Channel load), paging channel load (Paging Channel load), Traffic Channel load, telephone traffic load) of each frequency range is uniform.
Because behind the starting up of terminal, at first according to the preferred frequency search network that is provided with among the PRL; Behind the terminal locking frequency, the system message CCLM on the monitoring seek channel ECCLM, select a frequency by hash algorithm then; The terminal Idle state is just waited at this frequency, make a call from this frequency, and paging receiving channel massage (as channel assignment message and beep-page message), so, the Idle state terminal is embodied in access channel load and paging channel load to taking of system resource, and the connected state terminal then is embodied in Traffic Channel load and telephone traffic load to taking of system resource.
See also Fig. 2, the method for adjustment of the frequency range load in the multi-frequency network that first embodiment of the invention provides may further comprise the steps:
The load of each frequency range in S11, the calculating multi-frequency network;
S12, obtain the highest frequency range of load and the minimum frequency range of loading, and calculate the load difference of the minimum frequency range of the highest frequency range of described load and described load;
S13, judge that whether this load difference surpasses predetermined value, if surpass predetermined value, execution in step S14 then, otherwise, do not handle;
The multiband terminal of appointment is redirected to the minimum frequency range of this load on S14, the highest frequency range of will loading.
See also Fig. 3, the Adjustment System of frequency range in the multi-frequency network that first embodiment of the invention provides load comprises: load computing module 11 is used for calculating the load of each frequency range of multi-frequency network; Load difference computing module 12 is used for obtaining the highest frequency range of load and the minimum frequency range of load by the result of calculation of this load computing module, and calculates the load difference of the minimum frequency range of the highest frequency range of this load and this load; Load difference judge module 13 is used to judge whether the load difference that this load difference computing module 12 calculates surpasses predetermined value; Redirection module 14 is used for when this load difference judge module 13 judges that this load difference surpasses predetermined value, and the multiband terminal of appointment is redirected to the minimum frequency range of this load on the frequency range that this load is the highest.
The base station that first embodiment of the invention provides comprises the Adjustment System of the frequency range load in the multi-frequency network that first embodiment of the invention provides.In the Adjustment System of frequency range in this multi-frequency network load, the load computing module is used for calculating the load of each frequency range of multi-frequency network; The load difference computing module is used for obtaining the highest frequency range of load and the minimum frequency range of load by the result of calculation of this load computing module, and calculates the load difference of the minimum frequency range of the highest frequency range of this load and this load; The load difference judge module is used to judge whether the load difference that this load difference computing module calculates surpasses predetermined value; Redirection module is used for when this load difference judge module judges that this load difference surpasses predetermined value, and the multiband terminal of appointment is redirected to the minimum frequency range of this load on the frequency range that this load is the highest.
The base station that first embodiment of the invention provides, the method of adjustment of the frequency range load in the multi-frequency network and system are by judging the load difference of the frequency range that the highest frequency range of load and load are minimum, the multiband terminal of appointment is redirected to the minimum frequency range of load on the frequency range that load is the highest, can carry out the self adaptation adjustment to the load between the frequency range in the multi-frequency network, make the Idle state multiband terminal balancedly be distributed in each frequency range, and then the equalizing traffic volume of realization connected state, thereby can adapt to moving and the customer volume development of multiband terminal, do not need artificial controlling the market and distributing telephone numbers, reduce the dilatation difficulty simultaneously.
See also Fig. 4, the method for adjustment of the frequency range load in the multi-frequency network that second embodiment of the invention provides may further comprise the steps:
S21, calculate the common signal channel load of each frequency range periodically according to the access channel of each frequency range in multi-frequency network load and paging channel load;
In order to embody access channel load and paging channel load simultaneously,, be weighted the common signal channel load that calculates each frequency range to inserting channel load and paging channel load to each frequency range in the multi-frequency network:
CC?load?i＝AC?load?i*Wac+PC?load?i*Wpc
Wherein, CC load i represents the common signal channel load of frequency range i, AC load i, PC load i represent the access channel load and the paging channel load mean value of all frequencies in the frequency range i respectively, and AC load i, PCload i represent access channel load and the paging channel load of frequency range i respectively; The access channel load can represent that paging channel load can be represented with the Time Slot Occupancy rate of paging channel with the Time Slot Occupancy rate of access channel;
Wac, Wpc represent the weighted factor of access channel and paging channel respectively, satisfy Wac+Wpc=1.The value of Wac, Wpc, will be paid close attention to if the load of channel surpasses default thresholding according to the degree of concern decision to access channel and paging channel, and weight will increase accordingly.For example adopt following method:
If the access channel of 1 all frequency ranges load is less than a thresholding, promptly max{AC load i}＜AC_load_safety_threshold does not need to pay close attention to access channel at this moment, Wac=0 then is set, Wpc=1;
If the paging channel load of 2 all frequency ranges is less than a thresholding, promptly max{PC load i}＜PC_load_safery _ threshold does not need to pay close attention to paging channel at this moment, Wac=1 then is set, Wpc=0;
3 otherwise, Wac=0.5 is set, Wpc=0.5;
S22, obtain the highest frequency range of common signal channel load and the minimum frequency range of common signal channel load, and calculate the common signal channel load difference of the minimum frequency range of the highest frequency range of described common signal channel load and described common signal channel load; Concrete steps are as follows:
Obtain the highest frequency range bc_max of common signal channel load and the minimum frequency range bc_min of common signal channel load, corresponding load is respectively CC load max, and CC load min calculates
CC?load?max-CC?load?min＝△CC?load；
S23, judge that whether this common signal channel load difference surpasses predetermined value, if surpass predetermined value, execution in step S24 then, otherwise, do not handle; Concrete steps are as follows:
If △ CC load〉AdjustThreshold
The load that two frequency ranges then are described differs bigger, need adjust;
The multiband terminal gravity treatment system of S24, the appointment of the overall professional redirect message notice of use, the multiband terminal of appointment is redirected to the minimum frequency range of common signal channel load on the frequency range that the common signal channel load is the highest;
Concrete steps are as follows:
The multiband terminal of adjusting the appointment on the highest frequency range bc_max of common signal channel load is to the minimum frequency range bc_min of common signal channel load, and the AdjustThreshold recommended value is 20%;
All terminals are divided into 16 classes, and the corresponding Access overload class of every class is as shown in the table.
| Subfield | Length (bits) | Subfield?Description |
| ACCOLC_0 | 1 | Access?overload?class?0 |
| ACCOLC_1 | 1 | Access?overload?class?1 |
| ACCOLC_2 | 1 | Access?overload?class?2 |
| ACCOLC_3 | 1 | Access?overload?class?3 |
| ACCOLC_4 | 1 | Access?overload?class?4 |
| ACCOLC_5 | 1 | Access?overload?class?5 |
| ACCOLC_6 | 1 | Access?overload?class?6 |
| ACCOLC_7 | 1 | Access?overload?class?7 |
| ACCOLC_8 | 1 | Access?overload?class?8 |
| ACCOLC_9 | 1 | Access?overload?class?9 |
| ACCOLC_10 | 1 | Access?overload?class?10 |
| ACCOLC_11 | 1 | Access?overload?class?11 |
| ACCOLC_12 | 1 | Access?overload?class?12 |
| ACCOLC_13 | 1 | Access?overload?class?13 |
| ACCOLC_14 | 1 | Access?overload?class?14 |
| ACCOLC_15 | 1 | Access?overload?class?15 |
The method of adjusting is to use overall professional redirect message, and (Global Service RedirectionMessage, GSRM), the multiband terminal of appointment is redirected to the minimum frequency range of load on the frequency range that load is the highest.Comprise with at least one Access Overload Class (access overload category) corresponding multiband terminal on the highest frequency range of loading, the base station is by the multiband terminal gravity treatment system of appointment on the highest frequency range of overall professional redirect message notice load.The professional redirect message of the overall situation carries at least one AccessOverload Class, and the multiband terminal corresponding with Access Overload Class wanted the gravity treatment system.Carry the goal systems of gravity treatment in the message, these multiband terminal are redirected to goal systems.
The professional redirect message form of the overall situation is as shown in the table:
| Field | Suggest?value |
| PILOT_PN | PN?of?current?carrier |
| CONFIG_MSG_SEQ | |
| REDIRECT_ACCOLC | |
| RETURN_IF_FAIL | 1 |
| DELETE_TMSI | 0 |
| EXCL_P_REV_MS | 0 |
| RECORD_TYPE | ＝’00000010’ |
| RECORD_LEN | 8 |
| BAND_CLASS | Target?bandclass |
| EXPECTED_SID | |
| EXPECTED_NID | |
| RESERVED | 0 |
| NUM_CHANS | |
| NUM_CHANS?occurrences?ofthe?following?field： | |
| CDMA_CHAN | |
Wherein:
● field REDIRECT_ACCOLC represents that the terminal of which Access overload class correspondence will be redirected on the underload frequency range;
● the RETURN_IF_FAIL suggestion is set to 1, if the failure of expression terminal gravity treatment target can also be got back to this frequency range;
● the target that is redirected comprises target frequency bands (Target bandclass), target SID (EXPECTED_SID), target NID (EXPECTED_NID), target frequency tabulation (NUM_CHANS), be the frequency range and corresponding SID, the NID thereof of underload, the frequency that comprises tabulation.
Like this, the multiband terminal of the Access overload class correspondence of appointment in the message obtains system again with regard to the ferret out frequency, thus the load of balanced two frequency ranges.And the terminal of one-segment, owing to do not support other frequency ranges (yet just not the target frequency bands of appointment in the supporting business redirect message), can the gravity treatment system, perhaps after the gravity treatment thrashing, return current frequency range.
The terminal of an access overload class correspondence is only adjusted in suggestion at every turn, be that overall professional redirect message carries an Access Overload Class, the terminal of adjusting an access overload class correspondence can reduce the dynamics of adjusting, avoid the minimum load frequency range to become the maximum load frequency range, and the maximum load frequency range become the minimum load frequency range.For the terminal of adjusting two access overload class correspondences, then overall professional redirect message carries two Access Overload Class, by that analogy.
See also Fig. 5, the Adjustment System of the frequency range load in the multi-frequency network that second embodiment of the invention provides comprises: common signal channel load computing module 21, being used for the common signal channel that access channel load and paging channel load according to each frequency range of multi-frequency network calculate each frequency range loads, common signal channel load difference computing module 22, be used for obtaining the highest frequency range of common signal channel load and the minimum frequency range of common signal channel load, and calculate the common signal channel load difference of the minimum frequency range of the highest frequency range of this common signal channel load and this common signal channel load by the result of calculation of this common signal channel load computing module; Common signal channel load difference judge module 23 is used to judge whether the common signal channel load difference that common signal channel load difference computing module 22 calculates surpasses predetermined value; Redirection module 24, be used for when this common signal channel load difference judge module 23 judges that this load difference surpasses predetermined value, use overall professional redirect message to notify designated terminal gravity treatment system, the multiband terminal of appointment is redirected to the minimum frequency range of common signal channel load on the frequency range that the common signal channel load is the highest.
The base station that second embodiment of the invention provides comprises the Adjustment System of the frequency range load in the multi-frequency network that second embodiment of the invention provides.In the Adjustment System of the frequency range load in this multi-frequency network, common signal channel load computing module, being used for the common signal channel that access channel load and paging channel load according to each frequency range of multi-frequency network calculate each frequency range loads, common signal channel load difference computing module, be used for obtaining the highest frequency range of common signal channel load and the minimum frequency range of common signal channel load, and calculate the common signal channel load difference of the minimum frequency range of the highest frequency range of this common signal channel load and this common signal channel load by the result of calculation of this common signal channel load computing module; Common signal channel load difference judge module is used to judge whether the common signal channel load difference that common signal channel load difference computing module calculates surpasses predetermined value; Redirection module, be used for when this common signal channel load difference judge module judges that this load difference surpasses predetermined value, use overall professional redirect message to notify designated terminal gravity treatment system, the multiband terminal of appointment is redirected to the minimum frequency range of common signal channel load on the frequency range that the common signal channel load is the highest.
The base station that second embodiment of the invention provides, the method of adjustment of the frequency range load in the multi-frequency network and system are by judging the common signal channel load difference of the frequency range that the highest frequency range of load and load are minimum, the multiband terminal of appointment is redirected to the minimum frequency range of load on the frequency range that load is the highest, can carry out the self adaptation adjustment to the load between the frequency range in the multi-frequency network, make the Idle state terminal balancedly be distributed in each frequency range, and then the equalizing traffic volume of realization connected state, thereby can adapt to moving and the customer volume development of terminal, do not need artificial controlling the market and distributing telephone numbers, reduce the dilatation difficulty simultaneously.
See also Fig. 6, the method for adjustment of the frequency range load in the multi-frequency network that third embodiment of the invention provides may further comprise the steps:
S31, calculate the telephone traffic load of each frequency range in the multi-frequency network periodically according to the telephone traffic of the frequency of each frequency range; Specifically be by the telephone traffic summation to all frequencies of each frequency range, calculating mean value again is with the telephone traffic load of this mean value as this frequency range;
S32, obtain the highest frequency range of telephone traffic load and the minimum frequency range of telephone traffic load, and calculate the telephone traffic load difference of the minimum frequency range of the highest frequency range of this telephone traffic load and this telephone traffic load;
S33, judge that whether this telephone traffic load difference surpasses predetermined value, if surpass predetermined value, execution in step S34 then, otherwise, do not handle;
S34, the overall professional redirect message of use are notified designated terminal gravity treatment system, and the multiband terminal of appointment is redirected to the minimum frequency range of telephone traffic load on the frequency range that the telephone traffic load is the highest.
See also Fig. 7, the Adjustment System of the frequency range load in the multi-frequency network that third embodiment of the invention provides comprises: telephone traffic load computing module 31, be used for calculating the telephone traffic load of each frequency range of multi-frequency network according to the telephone traffic of the frequency of each frequency range, telephone traffic load difference computing module 32, be used for obtaining the highest frequency range of telephone traffic load and the minimum frequency range of telephone traffic load, and calculate the telephone traffic load difference of the minimum frequency range of the highest frequency range of this telephone traffic load and this telephone traffic load by the result of calculation of this telephone traffic load computing module; Telephone traffic load difference judge module 33 is used to judge whether the telephone traffic load difference that telephone traffic load difference computing module 32 calculates surpasses predetermined value; Redirection module 34, be used for when this telephone traffic load difference judge module 33 judges that this load difference surpasses predetermined value, use overall professional redirect message to notify designated terminal gravity treatment system, the multiband terminal of appointment is redirected to the minimum frequency range of telephone traffic load on the frequency range that the telephone traffic load is the highest.
The base station that third embodiment of the invention provides comprises the Adjustment System of the frequency range load in the multi-frequency network that third embodiment of the invention provides.In the Adjustment System of the frequency range load in this multi-frequency network, telephone traffic load computing module, be used for calculating the telephone traffic load of each frequency range of multi-frequency network according to the telephone traffic of the frequency of each frequency range, telephone traffic load difference computing module, be used for obtaining the highest frequency range of telephone traffic load and the minimum frequency range of telephone traffic load, and calculate the telephone traffic load difference of the minimum frequency range of the highest frequency range of this telephone traffic load and this telephone traffic load by the result of calculation of this telephone traffic load computing module; Telephone traffic load difference judge module is used to judge whether the telephone traffic load difference that telephone traffic load difference computing module calculates surpasses predetermined value; Redirection module, be used for when this telephone traffic load difference judge module judges that this load difference surpasses predetermined value, use overall professional redirect message to notify designated terminal gravity treatment system, the multiband terminal of appointment is redirected to the minimum frequency range of telephone traffic load on the frequency range that the telephone traffic load is the highest.
The method of adjustment of the base station that third embodiment of the invention provides, the load of the frequency range in the multi-frequency network and system are by judging the load the highest frequency range and the telephone traffic load difference of the minimum frequency range of loading, the multiband terminal of appointment is redirected to the minimum frequency range of load on the frequency range that load is the highest, can carry out the self adaptation adjustment to the load between the frequency range in the multi-frequency network, realize the equalizing traffic volume of connected state, thereby can adapt to moving and the customer volume development of terminal, do not need artificial controlling the market and distributing telephone numbers, reduce the dilatation difficulty simultaneously.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (23)
1. the method for adjustment of the load of the frequency range in the multi-frequency network is characterized in that, may further comprise the steps:
Calculate the load of each frequency range in the multi-frequency network;
Obtain the highest frequency range of load and the minimum frequency range of load, and calculate the load difference of the minimum frequency range of the highest frequency range of described load and described load;
Judge whether described load difference surpasses predetermined value, if surpass predetermined value, the multiband terminal of appointment is redirected to the minimum frequency range of described load on then that described load is the highest frequency range.
2. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 1, it is characterized in that, the step of the load of each frequency range in the described calculating multi-frequency network specifically: the common signal channel that calculates each frequency range according to the access channel of each frequency range in multi-frequency network load and paging channel load is loaded.
3. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 2, it is characterized in that the step of the common signal channel load that the access channel load of each frequency range in the described multi-frequency network and paging channel load calculate each frequency range specifically may further comprise the steps:
To each frequency range in the multi-frequency network, be weighted the common signal channel load that calculates each frequency range to inserting channel load and paging channel load:
CC?load?i＝AC?load?i*Wac+PC?load?i*Wpc
Wherein, CC load i represents the common signal channel load of frequency range i, and AC load i, PC load i represent the access channel load and the paging channel load mean value of all frequencies in the frequency range i respectively; Wac, Wpc represent the weighted factor of access channel and paging channel, Wac+Wpc=1 respectively.
4. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 3 is characterized in that, described access channel load represents that with the Time Slot Occupancy rate of access channel paging channel load is represented with the Time Slot Occupancy rate of paging channel.
5. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 3, it is characterized in that, the value of described Wac, Wpc is according to the degree of concern decision to access channel and paging channel, if the load of channel surpasses default thresholding, weight will increase accordingly.
6. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 2 is characterized in that,
Described the highest frequency range of load and the minimum frequency range of load obtained, and calculate the minimum frequency range of the highest frequency range of described load and described load load difference step specifically: obtain the highest frequency range of common signal channel load and the minimum frequency range of common signal channel load, and calculate the common signal channel load difference of the minimum frequency range of the highest frequency range of described common signal channel load and described common signal channel load;
Describedly judge that step that whether described load difference surpass predetermined value specifically: judge whether described common signal channel load difference surpasses predetermined value.
7. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 1, it is characterized in that, the step that the multiband terminal of appointment is redirected to the minimum frequency range of described load on the described frequency range that described load is the highest is specifically: use overall professional redirect message notice designated terminal gravity treatment system, the multiband terminal of appointment is redirected to the minimum frequency range of described load on the frequency range that described load is the highest.
8. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 7, it is characterized in that, the professional redirect message of the described overall situation carries goal systems and at least one access overload category of gravity treatment, and indication has the terminal gravity treatment of identical access overload category to goal systems.
9. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 1, it is characterized in that, the step of the load of each frequency range in the described calculating multi-frequency network specifically: the telephone traffic load that calculates each frequency range in the multi-frequency network according to the telephone traffic of the frequency of each frequency range.
10. the method for adjustment of the frequency range load in the multi-frequency network as claimed in claim 9, it is characterized in that, the telephone traffic of described frequency according to each frequency range calculate each frequency range in the multi-frequency network the telephone traffic load step specifically: by telephone traffic summation to all frequencies of each frequency range, calculating mean value is loaded as the telephone traffic of described frequency range with described mean value again.
11. the method for adjustment of the load of the frequency range in the multi-frequency network as claimed in claim 9 is characterized in that,
Described the highest frequency range of load and the minimum frequency range of load obtained, and calculate the minimum frequency range of the highest frequency range of described load and described load load difference step specifically: obtain the highest frequency range of telephone traffic load and the minimum frequency range of telephone traffic load, and calculate the telephone traffic load difference of the minimum frequency range of the highest frequency range of described telephone traffic load and described telephone traffic load;
Describedly judge that step that whether described load difference surpass predetermined value specifically: judge whether described telephone traffic load difference surpasses predetermined value.
12. the Adjustment System of the load of the frequency range in the multi-frequency network is characterized in that, comprising:
The load computing module is used for calculating the load of each frequency range of multi-frequency network;
The load difference computing module is used for obtaining the highest frequency range of load and the minimum frequency range of load by the result of calculation of described load computing module, and calculates the load difference of the minimum frequency range of the highest frequency range of described load and described load;
The load difference judge module is used to judge whether the load difference that described load difference computing module calculates surpasses predetermined value;
Redirection module is used for when described load difference judge module judges that described load difference surpasses predetermined value, and the multiband terminal of appointment is redirected to the minimum frequency range of described load on the frequency range that described load is the highest.
13. the Adjustment System of the load of the frequency range in the multi-frequency network as claimed in claim 12, it is characterized in that, described load computing module is a common signal channel load computing module, is used for loading according to the access channel load of each frequency range of multi-frequency network and the common signal channel that paging channel load calculates each frequency range.
14. the Adjustment System of the load of the frequency range in the multi-frequency network as claimed in claim 13 is characterized in that,
Described load difference computing module is a common signal channel load difference computing module, be used for obtaining the highest frequency range of common signal channel load and the minimum frequency range of common signal channel load, and calculate the common signal channel load difference of the minimum frequency range of the highest frequency range of described common signal channel load and described common signal channel load by the result of calculation of described common signal channel load computing module;
Described load difference judge module is a common signal channel load difference judge module, is used to judge whether the common signal channel load difference that described common signal channel load difference computing module calculates surpasses predetermined value.
15. the Adjustment System of the load of the frequency range in the multi-frequency network as claimed in claim 12, it is characterized in that, described redirection module is to use overall professional redirect message to notify designated terminal gravity treatment system, and the multiband terminal of appointment is redirected to the minimum frequency range of load on the frequency range that load is the highest.
16. the Adjustment System of the load of the frequency range in the multi-frequency network as claimed in claim 12, it is characterized in that, described load computing module is a telephone traffic load computing module, is used for calculating according to the telephone traffic of the frequency of each frequency range the telephone traffic load of each frequency range of multi-frequency network.
17. the Adjustment System of the load of the frequency range in the multi-frequency network as claimed in claim 16 is characterized in that,
Described load difference computing module is a telephone traffic load difference computing module, be used for obtaining the highest frequency range of telephone traffic load and the minimum frequency range of telephone traffic load, and calculate the telephone traffic load difference of the minimum frequency range of the highest frequency range of described telephone traffic load and described telephone traffic load by the result of calculation of described telephone traffic load computing module;
Described load difference judge module is a telephone traffic load difference judge module, is used to judge whether the telephone traffic load difference that described telephone traffic load difference computing module calculates surpasses predetermined value.
18. a base station is characterized in that, comprises the Adjustment System of the frequency range load in the multi-frequency network, the Adjustment System of the frequency range load in the described multi-frequency network comprises:
The load computing module is used for calculating the load of each frequency range of multi-frequency network;
The load difference computing module is used for obtaining the highest frequency range of load and the minimum frequency range of load by the result of calculation of described load computing module, and calculates the load difference of the minimum frequency range of the highest frequency range of described load and described load;
The load difference judge module is used to judge whether the load difference that described load difference computing module calculates surpasses predetermined value;
Redirection module is used for when described load difference judge module judges that described load difference surpasses predetermined value, and the multiband terminal of appointment is redirected to the minimum frequency range of described load on the frequency range that described load is the highest.
19. base station as claimed in claim 18, it is characterized in that, described load computing module is a common signal channel load computing module, is used for loading according to the access channel load of each frequency range of multi-frequency network and the common signal channel that paging channel load calculates each frequency range.
20. base station as claimed in claim 19 is characterized in that,
Described load difference computing module is a common signal channel load difference computing module, be used for obtaining the highest frequency range of common signal channel load and the minimum frequency range of common signal channel load, and calculate the common signal channel load difference of the minimum frequency range of the highest frequency range of described common signal channel load and described common signal channel load by the result of calculation of described common signal channel load computing module;
Described load difference judge module is a common signal channel load difference judge module, is used to judge whether the common signal channel load difference that described common signal channel load difference computing module calculates surpasses predetermined value.
21. base station as claimed in claim 18 is characterized in that, described redirection module is to use overall professional redirect message to notify designated terminal gravity treatment system, and the multiband terminal of appointment is redirected to the minimum frequency range of load on the frequency range that load is the highest.
22. base station as claimed in claim 18 is characterized in that, described load computing module is a telephone traffic load computing module, is used for calculating according to the telephone traffic of the frequency of each frequency range the telephone traffic load of each frequency range of multi-frequency network.
23. base station as claimed in claim 22 is characterized in that,
Described load difference computing module is a telephone traffic load difference computing module, be used for obtaining the highest frequency range of telephone traffic load and the minimum frequency range of telephone traffic load, and calculate the telephone traffic load difference of the minimum frequency range of the highest frequency range of described telephone traffic load and described telephone traffic load by the result of calculation of described telephone traffic load computing module;
Described load difference judge module is a telephone traffic load difference judge module, is used to judge whether the telephone traffic load difference that described telephone traffic load difference computing module calculates surpasses predetermined value.
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| CNA2007100772488A CN101137223A (en) | 2007-09-21 | 2007-09-21 | Base station, frequency band load regulation means and system in multi-frequency band network |
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| CNA2007100772488A CN101137223A (en) | 2007-09-21 | 2007-09-21 | Base station, frequency band load regulation means and system in multi-frequency band network |
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