CN101119140B - Load stabilization method and apparatus for layered cell structure - Google Patents
Load stabilization method and apparatus for layered cell structure Download PDFInfo
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Abstract
The present invention provides a load balancing method for wireless communication network. When a user terminate requires to establish communication with the wireless communication network, the invention is to detect the load capacity of the serving region of the user terminate, and to carry out corresponding process when the load capacity of the serving region of the user terminate is relative heavy; then the invention balance the load of the serving region, the double covering region and the synchronized covering region; thus, the communication blocking rate is reduced, and the communication outage of the user terminate caused by the shift between the different regions during the communication is also reduced. The invention also provides a load balancing device in the wireless communication network to run the load balancing method of the invention, endorsing with a relative low calculating load and realization complexity.
Description
Technical field
The present invention relates to a kind of wireless communication technology, relate to balancing method of loads and device in a kind of layered cell structure specifically.
Background technology
In wireless communication field; The overlay area of a wireless communication system is made up of several sub-districts (cell) usually; This cell structure can be wireless communication system on the one hand comprehensive, seamless covering is provided; Guarantee the quality of radio communication service, it is multiplexing on the other hand wireless communication resources to be able in different sub-districts, improves the capacity of wireless communication system.
At the initial stage of a wireless communication system networking, the negligible amounts of user terminal, often cover a certain zone by a sub-district this moment.Increasing along with user terminal especially will propose higher requirement to power system capacity in hot spot regions such as some marketplaces, commercial center, bustling locations.When the cell capacity that covers said hot spot region can not meet the demands, just need carry out the network capacity extension to wireless communication system.At present; A kind of technological means of carrying out the network capacity extension is for increasing more sub-district in above-mentioned hot spot region; These newly-increased sub-districts can have identical overlay area or can in the overlay area of former sub-district, cover littler zone with former sub-district; Promptly in said hot spot region, set up the multilayer sub-district that area coverage varies in size simultaneously, this cell structure is commonly referred to as layered cell structure (Hierarchical Cell Structure).
Shown in Figure 1 is the sketch map of a layered cell structure, the sub-district of an ellipse representation among the figure.In Fig. 1, cover a certain zone, be divided into three layers such as the sub-district in a commercial center place, in practical application, also can will divide into two-layer or more level for a short time based on concrete demand.In layered cell structure, the area coverage of overlay cell is bigger, is commonly called macrocell (Macro Cell); Generally be used for satisfying the requirement that covers; Promptly be used in the region comprehensive, seamless covering being provided, the area coverage of underlay cell is less, is commonly called Microcell or picocell (Micro Cell); Generally be used to satisfy the requirement of capacity, promptly be used in the region, increasing the capacity of system.In each layer of layered cell structure, also can cover identical zone, to reach the purpose of further increase power system capacity by a plurality of sub-districts.Fig. 2 shows the sketch map that in one deck of layered cell structure, covers a plurality of sub-districts in identical zone.Because in layered cell structure, a certain zone of the overlapping covering of a plurality of overlay cell and underlay cell perhaps covers identical zone with a plurality of sub-districts in one deck, thereby perhaps " with the covering " sub-district, " heavily covering " sub-district that is otherwise known as, this sub-district.
In wireless communication system, because the geographical position of user terminal changes, the factors such as change of area distribution, wireless propagation environment and the external interference at the terminal that Adds User, the load capacity of each sub-district is all in real-time changing.The load capacity of some sub-district possibly roll up, thereby causes the user terminal call blocking in these sub-districts, and the service quality (Quality of Service) of wireless communication system is suffered damage.The load capacity of some sub-district possibly not reach the capacity of sub-district again far away, causes the idle and waste of mass communication resource.Therefore, an importance optimizing performance in wireless communication systems is exactly the load balance that keeps each minizone, makes that the communication resource obtains fully, reasonable use, the resource utilization of raising wireless communication system.
Under layered cell structure, the main thought of the balancing method of loads that adopts usually at present is: at first be each the cell setting load-threshold value under the layered cell structure; When the load capacity that detects certain sub-district surpasses the load-threshold value for this cell setting, prepare to start the minizone handoff procedure, the minizone is here switched and is referred in said sub-district and its heavy coverage cell perhaps with the switching between coverage cell; Next, select a proper cell as Target cell, and a part of load in the said sub-district is switched to said Target cell, thereby accomplish the load balance process in said each sub-district in said heavy coverage cell with in coverage cell.In present this type balancing method of loads; Design key points is that the selection and needing of setting, the Target cell of said each cell load threshold value switched to the confirming of said fractional load of Target cell more; And do not limit especially opportunity for the detection of cell load amount, generally be to carry out with the mode that periodically detects.Under the mode that this periodicity detects; If it is shorter that sense cycle is provided with; Detection for the cell load amount will frequently be carried out, and this can make signaling consumption and the computational load dramatic growth of Wireless Telecom Equipment in the wireless communication system, thereby reduce system effectiveness and systematic function.If it is longer that sense cycle is provided with, may not find in time and follow the tracks of again for the variation of cell load amount, thereby cause the call congestion in the sub-district perhaps to cause communication interruption because of the said minizone switching in the communication process.Therefore, in the load balance process under layered cell structure, when carry out the detection of cell load amount, and then the load adjustment of when the load capacity of minizone is uneven, in time carrying out related cell also is main points of design (calculated) load balance method.
Summary of the invention
The objective of the invention is to propose the balancing method of loads in a kind of layered cell structure, be used to reduce communication blocking rate and communication interruption rate in the sub-district, improve the service quality of wireless communication system to the problem that exists in the above-mentioned existing balancing method of loads.
The present invention also aims to propose the load balance device in a kind of layered cell structure, be used for the balancing method of loads of embodiment of the present invention, and have lower computational load and implementation complexity.
The object of the invention is realized through following technical scheme: the balancing method of loads in a kind of layered cell structure comprises that step is following: when a user asks to set up business, detect the load capacity of said user's Serving cell; Each sub-district that has with covering and heavily covering for said Serving cell with it is provided with a load-threshold value respectively; When the load capacity of said Serving cell during, estimate that said user sets up the new load capacity that will produce after the said business less than described load-threshold value; When the new load capacity sum that after the load capacity of said Serving cell and said user set up said business, will produce is equal to, or greater than a load-threshold value; In having with covering and/or heavy cell covered, select a Target cell, and make said user set up business through described Target cell with said Serving cell;
Wherein, Said with said Serving cell have with cover and/or heavy cell covered in select a Target cell to comprise: detect the load capacity of said each sub-district and itself and said new load capacity sum compared with each corresponding said load-threshold value, be chosen in have in said each sub-district minimum load amount and its load capacity and said new load capacity sum less than a sub-district of corresponding said load-threshold value as said Target cell.
According to an aspect of the inventive method, each sub-district that has with covering and heavily covering for said Serving cell with it is provided with a load-threshold value respectively; When in having with covering and/or heavy cell covered, selecting said Target cell with said Serving cell; Detect the load capacity of said each sub-district and its corresponding said load-threshold value with each compared, be chosen in have in said each sub-district minimum load amount and its load capacity less than a sub-district of corresponding said load-threshold value as said Target cell.
Based on an aspect of the inventive method, for said Serving cell with its have with load-threshold value of each cell setting that covers identical, for said Serving cell with different with its load-threshold value with each cell setting that heavily covers.
Based on an aspect of the inventive method, the load-threshold value that has with each cell setting that covers and heavily cover for said Serving cell with it has nothing in common with each other.
An aspect according to the inventive method comprises that also step is following: in said user's communications process, detect the load capacity that said user belongs to time slot; When the load capacity of said time slot is equal to, or greater than a load-threshold value, said user is carried out the switching in the sub-district.
An aspect according to the inventive method comprises that also step is following: in said user's communications process, detect the load capacity that said user belongs to carrier frequency; When the load capacity of said carrier frequency is equal to, or greater than a load-threshold value, said user is carried out the switching in the sub-district.
Load balance device in a kind of layered cell structure is arranged in a net control device, comprising: a receiver module is used to receive a user's cordless communication network access request and set up service request; A detection module links with said receiver module, is used for receiving said cordless communication network when inserting request and setting up service request at said receiver module, detect said user Serving cell load capacity and itself and a load-threshold value compared; And control module; Link with said detection module; Be used for when the load capacity of said Serving cell is equal to, or greater than a load-threshold value; Have Target cell of selection in covering together and/or the heavy cell covered with said Serving cell, and making said user through described Target cell access to wireless communication network and foundation business;
Also comprise an estimation module in the said control module, be used for when said user asks to set up business, and, estimate that said user sets up the new load capacity that will produce after the said business when the load capacity of said Serving cell during less than described load-threshold value;
Said control module also is used for when the load capacity of said Serving cell and said new load capacity sum are equal to, or greater than described load-threshold value; In having with covering and/or heavy cell covered, select a Target cell, and it is professional to make that said user sets up through described Target cell with said Serving cell;
Also comprise a Target cell selection module in the said control module; Link with said estimation module; Be used for according to for said Serving cell with have the load-threshold value that is provided with respectively with each sub-district that covers and heavily cover with it, be chosen in have in said each sub-district minimum load amount and its load capacity and said new load capacity sum less than a sub-district of corresponding said load-threshold value as said Target cell.
Description of drawings
Below will combine accompanying drawing that the object of the invention and characteristic are described in detail through specific embodiment, these embodiment be illustrative, do not have restricted.
Fig. 1 is the sketch map of the heavy coverage cell under the layered cell structure.
Fig. 2 is the sketch map of the same coverage cell under the layered cell structure.
Fig. 3 is the sketch map according to the specific embodiment 1 of the inventive method.
Fig. 4 is the sketch map according to the specific embodiment 2 of the inventive method.
Fig. 5 is the user's access to wireless communication internet message flow process according to the inventive method.
Fig. 6 sets up the service message flow process for the user according to the inventive method.
Fig. 7 is for to change message flow one according to user's intra-cell of the inventive method.
Fig. 8 is for to change message flow two according to user's intra-cell of the inventive method.
Fig. 9 is the structural representation according to the specific embodiment of apparatus of the present invention.
Embodiment
Core concept of the present invention is when setting up between a user terminal requests and cordless communication network when communicating by letter; Promptly the load capacity to the Serving cell of this user terminal detects; And when the load capacity that detects this Serving cell is heavier, handle accordingly; Said Serving cell is carried out balance with its heavy coverage cell with the load in the coverage cell; The communication blocking rate of sub-district is minimized, and reduces the communication disruption phenomenon of switching the user terminal that causes because of the minizone in the communication process.
According to balancing method of loads of the present invention, the sketch map of the specific embodiment 1 of the inventive method has been shown among Fig. 3.
As shown in Figure 3; In step 101; When a user terminal requests access to wireless communication network, when promptly setting up signaling bear (Bearer) between request and network, and work as a user terminal requests and set up communication service; When promptly setting up service bearer between request and network, promptly detect the load capacity of the Serving cell of this user terminal.
Said Serving cell and have with it with each sub-district that covers and heavily cover and be set up a load-threshold value respectively, described load-threshold value can be for predefined, also can be that the managerial demand according to wireless communication system dynamically arranges.
Load capacity based on described load-threshold value and detected said Serving cell; In step 102; The load capacity of more said Serving cell and corresponding load-threshold value, when the load capacity of said Serving cell is equal to, or greater than said load-threshold value, execution in step 103.
In step 103; Detect with said Serving cell and have load capacity with each sub-district that covers and/or heavily cover; And the corresponding said load-threshold value with each of detected said each load capacity compared, be chosen in have in said each sub-district minimum load amount and its load capacity less than a sub-district of corresponding said load-threshold value as Target cell.
At last, in step 104,, make that said user terminal access to wireless communication network and foundation are professional through described Target cell.
Because when foundation between a user terminal requests and cordless communication network is communicated by letter; Signaling bear must be set up prior to service bearer; Thereby in said specific embodiment 1; Detect the load capacity of the Serving cell of this user terminal when between said user terminal requests and network, setting up signaling bear, just can in time know the load state of said Serving cell, and and then avoid causing the communication blocking of said user terminal.
The professional request of foundation to a user terminal is initiated has illustrated the sketch map based on the specific embodiment 2 of the inventive method among Fig. 4.
As shown in Figure 4, in step 201,, when promptly setting up service bearer between request and network, promptly detect the load capacity of the Serving cell of this user terminal when a user terminal requests is set up communication service.
Said Serving cell and each sub-district that has with covering and heavily covering with it have been set up a load-threshold value respectively; Load capacity based on described load-threshold value and detected said Serving cell; In step 202; The load capacity of more said Serving cell and corresponding load-threshold value, when the load capacity of said Serving cell during less than said load-threshold value, execution in step 203.
In step 203; Estimate that said user sets up the new load capacity that will produce after the said business; And the load capacity of said Serving cell and said user are set up the new load capacity sum and the described load-threshold value that will produce after the said business compare; When the load capacity of said Serving cell and said new load capacity sum are equal to, or greater than described load-threshold value, execution in step 204.
In step 204; Detect with said Serving cell and have load capacity with each sub-district that covers and/or heavily cover; And the corresponding said load-threshold value with each of detected said each load capacity compared, be chosen in have in said each sub-district minimum load amount and its load capacity less than a sub-district of corresponding said load-threshold value as Target cell.
At last, in step 205, make that through described Target cell foundation is professional between said user terminal and network.
Set up between a user terminal and cordless communication network the time that signal post needs in order to shorten; Usually in a period of time behind said user terminal and internetwork sign off; This moment, said user terminal and internetwork service bearer were deleted; Said user terminal and internetwork signaling bear still keep, thus make when said user terminal need once more with network between foundation when communicating by letter, can directly set up service bearer.And in a third generation (3G) GSM; A user terminal can carry out multinomial communication service simultaneously; These service bearers can not set up at one time, and before a service bearer of said user terminal was not released, said user terminal also can be set up new service bearer.Therefore; In said specific embodiment 2 according to the method for the invention; When setting up service bearer between a user terminal requests and network, also need detect the load capacity of the Serving cell of this user terminal, in time to know the load state of said Serving cell; And then avoid causing the communication blocking of said user terminal, and reduce because of switching the communication disruption phenomenon that causes in the minizone in the communication process.And in said specific embodiment 2; When the load capacity of said Serving cell during less than said load-threshold value; Also need to set up the new load capacity that said professional back produced and estimate, thereby further reduced the communication blocking and the communication terminal probability of said user terminal said user terminal.
Preferably; The professional request of foundation to a user terminal initiation; In specific embodiment 3 according to the inventive method, step 301, step 302, step 303 and step 305 all with said specific embodiment 2 in step 201, step 202, step 203 and step 205 identical.
Different with said specific embodiment 2 is; In the step 304 of this specific embodiment 3; When in having with covering and/or heavy cell covered, selecting said Target cell with said Serving cell; Detect the load capacity of said each sub-district and itself and said new load capacity sum compared with each corresponding said load-threshold value, be chosen in have in said each sub-district minimum load amount and its load capacity and said new load capacity sum less than a sub-district of corresponding said load-threshold value as described Target cell.
Through described specific embodiment 3, it is professional to guarantee better that said user terminal is able to through setting up between described Target cell and network.
In above-mentioned specific embodiment 1 to specific embodiment 3; The set load-threshold value in each sub-district that has with covering and heavily covering for said Serving cell with it both can have nothing in common with each other; Also can be according to the characteristics of layered cell structure; For said Serving cell with have with the identical load-threshold value of each cell setting that covers with it, for said Serving cell with have the different load-threshold value of each cell setting that heavily covers with it.
Because according to simple, the easy row of balancing method of loads of the present invention; Therefore in the process of the practical implementation of the inventive method; It both can be used as the useful of existing admission control algorithm and had replenished; The use that combines with existing access control also can be used as a kind of simple access control and uses separately.
Preferably; In the wireless communication system of a multicarrier; When a user terminal and its Serving cell have the ability of support multicarrier (Carrier); Can further comprise also that according to balancing method of loads of the present invention step is following: in the communication process of said user terminal, detect the load capacity that said user belongs to time slot (Time Slot) and/or place carrier frequency (Carrier Frequency); When said time slot and/or said carrier frequency take place when for example its load capacity is equal to, or greater than a load-threshold value, said user terminal to be carried out the switching in the sub-district when congested, promptly carry out the switching between time slot or carrier frequency.Through said preferred version according to balancing method of loads of the present invention; Not only can between a user terminal requests and cordless communication network, set up when communicating by letter; The load capacity of system is detected and then reduces the generation of traffic congestion and communication disruption; Also can be in the communication process of said user terminal monitoring system load capacity and carry out the switching in the corresponding sub-district, the performance of the wireless communication system of further optimizing has improved utilization ratio of wireless resources.
To combine Fig. 5, Fig. 6, Fig. 7 and Fig. 8 below, be that example is explained the embodiment according to the inventive method with the message flow in the time division synchronization code division multiple access to communication system (Time Division-Synchronous Code Division Multiple Access) further.
As shown in Figure 5; When a user terminal UE request access to wireless communication network, this UE will send wireless resource control connection request RRC CONNECTION REQUEST message to corresponding radio network controller (Radio Network Controller) through its Serving cell Cell1; After said RNC receives this message; According to the method for the invention; This RNC needs the load state of Cell1 is detected and handles accordingly; Be specially: when the load capacity that detects Cell1 is equal to, or greater than a load-threshold value, this RNC will select a Target cell in having with covering and/or heavy cell covered with Cell1, for example be Cell2 here; After having selected said Target cell, said RNC will send the Radio Resource control connection to said UE through Cell1 and set up RRC CONNECTION SETUP message, carry the information and relevant information of radio resource allocation of the Target cell Cell2 of institute in this message; Said UE sends the Radio Resource control connection through said Target cell Cell2 to said RNC and sets up completion RRC CONNECTION SETUP COMPLETE message, successful access to wireless communication network after receiving said RRC CONNECTION SETUP message.
As shown in Figure 6, when business is set up in request behind the user terminal UE access to wireless communication network, core net CN at first will send RAB request for allocation RAB ASSIGNMENT REQUEST message to corresponding RNC; After said RNC receives this message; According to the method for the invention; This RNC needs the load state of the Serving cell of said UE is detected and handles accordingly; Be specially: when the load capacity that detects this Serving cell is equal to, or greater than a load-threshold value, said RNC will select a Target cell in having with covering and/or heavy cell covered with this Serving cell; After having selected said Target cell, said RNC will send Radio Link to the base station node B of this Target cell and set up request RADIOLINK SETUP REQUEST message; Said Target cell Node B sends Radio Link to said RNC and sets up response RADIO LINK SETUP RESPONSE message after receiving said RADIO LINK SETUP REQUEST message; After said RNC receives said RADIO LINK SETUP RESPONSE; To send radio bearer to said UE through said Serving cell Node B and set up RADIO BEARER SETUP message, carry the information of said Target cell and relevant information of radio resource allocation in this message; Said UE sends radio bearer through said Target cell Node B to said RNC and sets up completion RADIO BEARER SETUP COMPLETE message after receiving said RADIO BEARER SETUP message; After said RNC receives said RADIO BEARER SETUP COMPLETE message, will send RAB assignment response RAB ASSIGNMENT RESPONSE message to CN, the business that so far indicates said UE and asked is successfully set up.Next, said RNC also can send Radio Link deletion request RADIO LINK DELETION REQUEST message to said Serving cell Node B; Said Serving cell Node B is after receiving said RADIO LINK DELETION REQUEST message; Send Radio Link deletion response RADIO LINK DELETION RESPONSE message to said RNC, in order to delete the relevant Radio Link between said Serving cell Node B and said UE.
Illustrated among Fig. 7 and Fig. 8 in the communication process of a user terminal UE; When the intra-cell that said UE place time slot and/or carrier frequency take place when congested is changed message flow; Wherein being the synchronous reprovision process of Radio Link shown in Fig. 7, is the asynchronous reprovision process of Radio Link shown in Fig. 8.
Like Fig. 7 and shown in Figure 8; Preferred version according to the inventive method; In the communication process of said UE; Take place when congested when the service wireless network controller SRNC of base station in service sector NODEB of the said UE of management finds said UE place time slot and/or carrier frequency, said SRNC will start the intra-cell of said UE and change process.When carrying out the wireless link synchronization reprovision, said SRNC at first sends wireless link reconfigured preparation Radio Link Reconfiguration Prepare message to said NODEB; After receiving said message, said NODEB sends wireless link reconfigured ready Radio Link Reconfiguration Ready message to said SRNC; After receiving described Radio Link Reconfiguration Ready message; Said SRNC sends radio bearer reprovision request RADIO BEARER RECONFIGURATION REQUEST message to said UE, and sends wireless link reconfigured submission Radio Link Reconfiguration Commit message to said NODEB; At last, said UE sends the radio bearer reprovision to said SRNC and accomplishes RADIO LINK RECONFIGURATION COMPLETE message, accomplishes intra-cell and changes process.When carrying out the asynchronous reprovision of Radio Link, said SRNC at first sends wireless link reconfigured request Radio Link Reconfiguration Request message to said NODEB; After receiving said message, said NODEB sends wireless link reconfigured response Radio Link Reconfiguration Response message to said SRNC; After receiving said message, said SRNC sends radio bearer reprovision request RADIO BEARER RECONFIGURATION REQUEST message to said UE; After receiving said message, said UE sends the radio bearer reprovision to said SRNC and accomplishes RADIO LINK RECONFIGURATION COMPLETE message, accomplishes intra-cell and changes process.
According to load balance device of the present invention, the structural representation of the load balance device in the time division synchronization code division multiple access to communication system radio network controller has been shown among Fig. 9.As shown in Figure 9, this load balance device at first comprises a receiver module, is used to receive a user's cordless communication network access request and set up service request; A detection module links with said receiver module, is used for receiving said cordless communication network when inserting request and setting up service request at said receiver module, detect said user Serving cell load capacity and itself and a load-threshold value compared; And control module; Link with said detection module; Be used for when the load capacity of said Serving cell is equal to, or greater than a load-threshold value; Have Target cell of selection in covering together and/or the heavy cell covered with said Serving cell, and making said user through described Target cell access to wireless communication network and foundation business.
Preferably; In said load balance device; Can further comprise an estimation module in the said control module; Be used for when said user asks to set up business, and, estimate that said user sets up the new load capacity that will produce after the said business when the load capacity of said Serving cell during less than described load-threshold value.When the load capacity of said Serving cell and said new load capacity sum are equal to, or greater than described load-threshold value; Said control module also is used for having with covering and/or Target cell of heavy cell covered selection with said Serving cell, and it is professional to make that said user sets up through described Target cell.In addition; Also can comprise a Target cell selection module in the said control module; Link with said estimation module; Be used for according to for said Serving cell with have the load-threshold value that is provided with respectively with each sub-district that covers and heavily cover with it, be chosen in have in said each sub-district minimum load amount and its load capacity and said new load capacity sum less than a sub-district of corresponding said load-threshold value as said Target cell.
Through in net control devices such as existing radio network controller, base station controller (Base Station Controller) or other related communication unit, increasing according to load balance device of the present invention; Can reduce the communication blocking rate and the communication interruption rate of wireless communication system, improve the service quality of wireless communication system.Simultaneously, also have lower computational load and implementation complexity according to load balance device of the present invention.
Claims (7)
1. the balancing method of loads in the layered cell structure is characterized in that comprising that step is following:
When a user asks to set up business, detect the load capacity of said user's Serving cell;
Each sub-district that has with covering and heavily covering for said Serving cell with it is provided with a load-threshold value respectively;
When the load capacity of said Serving cell during, estimate that said user sets up the new load capacity that will produce after the said business less than described load-threshold value;
When the new load capacity sum that after the load capacity of said Serving cell and said user set up said business, will produce is equal to, or greater than a load-threshold value; In having with covering and/or heavy cell covered, select a Target cell, and make said user set up business through described Target cell with said Serving cell;
Wherein, said with said Serving cell have with cover and/or heavy cell covered in select a Target cell to comprise:
Detect the load capacity of said each sub-district and itself and said new load capacity sum compared with each corresponding said load-threshold value, be chosen in have in said each sub-district minimum load amount and its load capacity and said new load capacity sum less than a sub-district of corresponding said load-threshold value as said Target cell.
2. method according to claim 1 is characterized in that:
Each sub-district that has with covering and heavily covering for said Serving cell with it is provided with a load-threshold value respectively;
When in having with covering and/or heavy cell covered, selecting said Target cell with said Serving cell; Detect the load capacity of said each sub-district and its corresponding said load-threshold value with each compared, be chosen in have in said each sub-district minimum load amount and its load capacity less than a sub-district of corresponding said load-threshold value as said Target cell.
3. method according to claim 2 is characterized in that: for said Serving cell with its have with load-threshold value of each cell setting that covers identical, for said Serving cell with different with its load-threshold value with each cell setting that heavily covers.
4. method according to claim 2 is characterized in that: the load-threshold value that has for said Serving cell with it with each cell setting that covers and heavily cover has nothing in common with each other.
5. method according to claim 1, it is following to it is characterized in that also comprising step:
In said user's communications process, detect the load capacity that said user belongs to time slot;
When the load capacity of said time slot is equal to, or greater than a load-threshold value, said user is carried out the switching in the sub-district.
6. according to claim 1 or 5 described methods, it is following to it is characterized in that also comprising step:
In said user's communications process, detect the load capacity that said user belongs to carrier frequency;
When the load capacity of said carrier frequency is equal to, or greater than a load-threshold value, said user is carried out the switching in the sub-district.
7. the load balance device in the layered cell structure is arranged in a net control device, it is characterized in that comprising:
A receiver module is used to receive a user's cordless communication network access request and set up service request;
A detection module links with said receiver module, is used for receiving said cordless communication network when inserting request and setting up service request at said receiver module, detect said user Serving cell load capacity and itself and a load-threshold value compared; And
A control module; Link with said detection module; Be used for when the load capacity of said Serving cell is equal to, or greater than a load-threshold value; Have Target cell of selection in covering together and/or the heavy cell covered with said Serving cell, and making said user through described Target cell access to wireless communication network and foundation business;
Also comprise an estimation module in the said control module, be used for when said user asks to set up business, and, estimate that said user sets up the new load capacity that will produce after the said business when the load capacity of said Serving cell during less than described load-threshold value;
Said control module also is used for when the load capacity of said Serving cell and said new load capacity sum are equal to, or greater than described load-threshold value; In having with covering and/or heavy cell covered, select a Target cell, and it is professional to make that said user sets up through described Target cell with said Serving cell;
Also comprise a Target cell selection module in the said control module; Link with said estimation module; Be used for according to for said Serving cell with have the load-threshold value that is provided with respectively with each sub-district that covers and heavily cover with it, be chosen in have in said each sub-district minimum load amount and its load capacity and said new load capacity sum less than a sub-district of corresponding said load-threshold value as said Target cell.
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| CN2006100891035A CN101119140B (en) | 2006-08-03 | 2006-08-03 | Load stabilization method and apparatus for layered cell structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101547513B (en) * | 2008-03-25 | 2011-09-14 | 华为技术有限公司 | Method for controlling access of user equipment in multi-frequency system and network equipment |
| CN101547516B (en) * | 2008-03-25 | 2012-11-07 | 华为技术有限公司 | Method for controlling access of user equipment in multiple frequency point system and network equipment |
| CN101730145B (en) * | 2008-10-29 | 2012-07-25 | 上海华为技术有限公司 | Method, device and system of load balancing |
| CN101801031A (en) * | 2009-02-05 | 2010-08-11 | 大唐移动通信设备有限公司 | Method, device and system for realizing load balance in floored community |
| CN101626589B (en) * | 2009-08-10 | 2012-02-01 | 华为技术有限公司 | Load control method, apparatus and system |
| CN101873709B (en) | 2010-06-30 | 2013-06-26 | 华为技术有限公司 | Method, equipment and system for assigned calling |
| CN102572947A (en) * | 2010-12-15 | 2012-07-11 | 中国移动通信集团上海有限公司 | Method and device for controlling load of network equipment |
| CN102685776B (en) * | 2011-03-08 | 2017-03-15 | 中兴通讯股份有限公司 | The method and device that cell load is reduced by CoMP technology |
| CN102333342A (en) * | 2011-09-23 | 2012-01-25 | 大唐移动通信设备有限公司 | District service processing method and device and facility |
| CN103037525B (en) * | 2011-09-28 | 2018-05-01 | 中兴通讯股份有限公司 | Resource allocation methods and base station in a kind of distributing antenna system |
| CN102413510A (en) * | 2011-12-01 | 2012-04-11 | 大唐移动通信设备有限公司 | Cell access control method and device |
| CN103763747B (en) * | 2014-02-21 | 2017-03-08 | 重庆邮电大学 | A kind of method realizing dynamic load leveling in heterogeneous network |
| CN106341853A (en) * | 2015-07-10 | 2017-01-18 | 中兴通讯股份有限公司 | Switching realizing method and device and base station |
| CN107820291B (en) * | 2016-09-12 | 2021-04-20 | 华为技术有限公司 | Network slice control method and related equipment |
| CN113923670B (en) * | 2020-07-10 | 2024-08-09 | 中国移动通信集团重庆有限公司 | Wireless network carrier frequency balance degree identification method and device and computing equipment |
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| CN1553739A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Method for realizing laminated plot interlayer loading balance |
| CN1681349A (en) * | 2004-04-08 | 2005-10-12 | 华为技术有限公司 | Loading balancing method in layering zone structure |
| CN1710902A (en) * | 2004-06-17 | 2005-12-21 | 华为技术有限公司 | Admission control method using consulation mechanism |
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| CN1553739A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Method for realizing laminated plot interlayer loading balance |
| CN1681349A (en) * | 2004-04-08 | 2005-10-12 | 华为技术有限公司 | Loading balancing method in layering zone structure |
| CN1710902A (en) * | 2004-06-17 | 2005-12-21 | 华为技术有限公司 | Admission control method using consulation mechanism |
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