CN101312582B - Method for dynamic controlling service time slot on the basis of cell load - Google Patents
Method for dynamic controlling service time slot on the basis of cell load Download PDFInfo
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- CN101312582B CN101312582B CN2007101070995A CN200710107099A CN101312582B CN 101312582 B CN101312582 B CN 101312582B CN 2007101070995 A CN2007101070995 A CN 2007101070995A CN 200710107099 A CN200710107099 A CN 200710107099A CN 101312582 B CN101312582 B CN 101312582B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a method for controlling service time slot according to the dynamic load of a region, comprising steps of: (1) determining the ascending/descending total service time slot number; (2) determining the ascending/descending effective service time slot occupied number; (3) determining frequency point number; (4) according to the ascending/descending total service time slot number, the ascending/descending effective service time slot occupied number and the frequency point number, determining the time slot number on the ascending/descending to be closed. The method considers region load, system performance and system power consumption and the like, to resolve the problem of the prior art such as the prior art can not dynamically open or close time slots according to the prior load of a region, thereby reducing system power consumption with confirmed system performance.
Description
Technical field
The present invention relates to a kind of slow dynamic channel allocation method in the TD-SCDMA system, relate more specifically to a kind of method of dynamically controlling business time-slot according to cell load.
Background technology
In wireless telecommunication system, system power dissipation just is an influencing factor of system's operation cost; How to reduce system power dissipation as much as possible under the prerequisite that guarantees systematic function is the problem that system equipment need solve.
Insert in (TD-SCDMA) system in TD SDMA, all physical channels all adopt four-layer structure: system-frame, radio frames, subframe, time slot, time slot is used for distinguishing the different user signal on time domain, it has time division multiple access (Time Division Multiple Access is called for short TDMA) characteristic.Wherein, business time-slot can be closed transmission-receiving function to reduce system power dissipation in zero load.The opening/closing of time slot can be by radio network controller (Radio Network Controller, hereinafter to be referred as RNC) by CELL RECONFIGURATION REQUEST (the cell re-configuration request of putting) message informing Node B, Node B can finish opening or closing time slot in 10ms after receiving this message; But open, close time slot too continually and can produce a large amount of unnecessary messages, influence systematic function; In addition, because the restriction of radio frequency, the same time slot of N frequency point cell is opened simultaneously or is closed simultaneously; If the user is few but be carried on different time-gap in the sub-district, can cause time slot effectively not close.
Prior art does not propose solution at how effectively to control business time-slot according to system loading under the prerequisite that guarantees systematic function to reduce system power dissipation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of dynamically controlling business time-slot according to cell load, described method has been considered factors such as cell load, systematic function, system power dissipation, solved in the prior art and can not can under the prerequisite that guarantees systematic function, reduce system power dissipation according to the sub-district when the preload dynamic opening or close the problem of time slot.
For addressing the above problem, the invention provides and a kind ofly dynamically control the method for business time-slot according to cell load, it is characterized in that, may further comprise the steps:
(1) determines up/descending total business time-slot number;
(2) determine up/descending effective traffic Time Slot Occupancy number;
(3) determine the frequency number;
(4) according to described up/descending total business time-slot number, described up/descending effective traffic Time Slot Occupancy number and described frequency number determine up/descending closable timeslot number.
Of the present inventionly dynamically control the method for business time-slot according to cell load, wherein, for circuit-switched service, described effective traffic Time Slot Occupancy number is as the criterion with the circuit-switched service number; For packet switching service that is carried on dedicated channel and voice and packet data concurrent service, described effective Time Slot Occupancy number is as the criterion with actual Time Slot Occupancy number; For the high-speed downlink grouped data access service, for the sub-district of supporting that high-speed downlink grouped data inserts, the effective Time Slot Occupancy number of described DSCH Downlink Shared Channel is as the criterion with the actual number that takies; Effective Time Slot Occupancy number of following special physical channel is as the criterion with the DPCH number and calculates; For the common signal channel that is carried on business time-slot, the business time-slot of common signal channel effectively takies number and is as the criterion with the actual number that takies.
Of the present inventionly dynamically control the method for business time-slot according to cell load, wherein, the described up closable timeslot number in the step (4)=(up total business time-slot number-up effective traffic Time Slot Occupancy number)/frequency number.
Of the present inventionly dynamically control the method for business time-slot according to cell load, wherein, the descending closable timeslot number in the step (4)=(descending total business time-slot number-descending effective traffic Time Slot Occupancy number)/frequency number.
Of the present inventionly dynamically control the method for business time-slot, wherein, further may further comprise the steps according to cell load:
(5) compare the professional up effective Time Slot Occupancy number and the uplink service timeslot number of this professional frequency, when both were identical, the ascending time slot of described frequency can not be inaccessible.
Of the present inventionly dynamically control the method for business time-slot, wherein, further may further comprise the steps according to cell load:
(6) compare the professional descending effective Time Slot Occupancy number and the downlink business timeslot number of this professional frequency, when both were identical, the descending time slot of described frequency can not be inaccessible.
Of the present inventionly dynamically control the method for business time-slot, wherein, further may further comprise the steps according to cell load:
(7) common signal channel is configured in apart from the business time-slot up-downgoing transfer point time slot far away.
Of the present inventionly dynamically control the method for business time-slot, wherein, further may further comprise the steps according to cell load:
(8) distribute not inaccessible resource;
(9) judge whether to exist following situation: not inaccessible time slot is refused or is admitted this business time-slot load to open the triggering thresholding greater than time slot, and current existence is in the time slot of blocked state; If exist, distribute or open the resource that is in blocked state.
Of the present inventionly dynamically control the method for business time-slot, wherein, further may further comprise the steps according to cell load:
(10) judge whether resource is allocated successfully, when resource allocation success, and when comprising inaccessible time slot in the resource of being distributed, send that Radio Link is set up, before the reconfiguration message, send cell re-configuration to respective cell and put request message, the inaccessible time slot that will be referred to is opened.
Adopt the method for the invention, compared with prior art, this method has been considered factors such as cell load, systematic function, system power dissipation, when preload dynamically opens or closes time slot, can reduce system power dissipation according to the sub-district under the prerequisite that guarantees systematic function.
Description of drawings
Fig. 1 is a kind of specific embodiment operational flowchart of method of the present invention;
Fig. 2 is that the time slot of the another kind of specific embodiment of method of the present invention is opened the triggering flow chart;
Fig. 3 is that the time slot of the another kind of specific embodiment of method of the present invention is closed the triggering flow chart.
Embodiment
The present invention is in order to solve the drawback that conventional solution exists, further set forth a kind of method of dynamically controlling business time-slot according to cell load of the present invention by following examples, below embodiment is described in detail, but not as a limitation of the invention.
As shown in Figure 1, the embodiment of the invention said method comprising the steps of:
At first introduce the trigger condition of notion to illustrate that time slot is opened of " effectively Time Slot Occupancy number ".In line with the principle of systematic function first, reducing power consumption second, effectively the notion of Time Slot Occupancy number is defined as follows with professional relevant:
For CS (circuit switching) business: effectively the Time Slot Occupancy number is as the criterion with the professional number of CS;
For PS (packet switching) business and the voice and packet data concurrent service that are carried on DCH (dedicated channel) channel: consider that this type of business may stride the time slot carrying, effective Time Slot Occupancy number that therefore should business is as the criterion with actual Time Slot Occupancy number;
For HSDPA (high-speed downlink grouped data access) business: for the sub-district of supporting HSDPA, effective Time Slot Occupancy number of DSCH Downlink Shared Channel is as the criterion with the actual number that takies; Following effective Time Slot Occupancy number of DPCH (DPCH) to be as the criterion with the DPCH number of channel calculates;
For the common signal channel that is carried on business time-slot: then the business time-slot of common signal channel effectively takies number and is as the criterion with the actual number that takies.
The described method of another embodiment of the present invention comprises that time slot is closed the triggering flow process and time slot is opened the triggering flow process.
As shown in Figure 2, the time slot of the described method of another embodiment of the present invention is closed and is triggered flow process and may further comprise the steps:
Step 201, professional release, switching, the professional reduction of speed rate of PS trigger the resource allocation flow process;
Step 202 judges whether to have business, and effective Time Slot Occupancy number of this business equals to carry the opened business time-slot number of this professional frequency; If there is execution in step 208; Otherwise, execution in step 203;
Wherein, up closable timeslot number=(up total business time-slot number-up effective traffic Time Slot Occupancy number)/frequency number;
Descending closable timeslot number=(descending total business time-slot number-descending effective traffic Time Slot Occupancy number)/frequency number.
Whether step 204, judgement have the service bearer of non-common signal channel near the time slot of business time-slot up-downgoing transfer point; If, execution in step 205; Otherwise, execution in step 206;
Step 205 will be moved to the edge time slot near the time slot loaded service of business time-slot up-downgoing transfer point; Execution in step 207 then;
Step 207 sends CELL RECONFIGURATION REQUEST message to respective cell, will be near the non-inaccessible time slot obturation of business time-slot up-downgoing transfer point; Execution in step 208;
Because common signal channel takies that time slot can not be closed and common signal channel can not time slot migrating, so be configured in apart from the business time-slot up-downgoing transfer point time slot far away, during the common signal channel configuration so that time slot opening/closing efficient is higher as far as possible.
Step 208, this resource release flow finishes.
Consider that same PS business may stride time slot carrying but cannot stride the frequency carrying, except considering effective Time Slot Occupancy number, also need to consider following restriction when time slot is closed in the sub-district of therefore carrying the PS business:
(1) if descending effective Time Slot Occupancy number of certain business equals to carry the downlink business timeslot number of this professional frequency, then the descending time slot of this frequency can not be inaccessible;
(2) if up effective Time Slot Occupancy number of certain business equals to carry the uplink service timeslot number of this professional frequency, then the ascending time slot of this frequency can not be inaccessible.
Based on as above time slot shutdown strategy, and Node B can finish in 10ms after time slot is opened message the opening of time slot receiving, it is as follows that time slot is opened strategy:
(1) when the operation that increase system resource takies, priority allocation is the resource of inaccessible time slot not; If not inaccessible time slot refusal or admit this business time-slot load to open greater than time slot and trigger the time slot that thresholding and current existence are in blocked state then considers to distribute or open the resource that is in blocked state;
(2) if comprise inaccessible time slot in the resource allocation success and the resource of being distributed, then before sending message such as RL (Radio Link) sets up, reshuffles, earlier send a CELL RECONFIGURATION REQUEST message to respective cell, the inaccessible time slot that will be referred to is opened.
As shown in Figure 3, the time slot of the described method of another embodiment of the present invention is opened and is triggered flow process and comprise the steps:
Step 301, professional foundation, switching, the professional raising speed rate of PS trigger the resource allocation flow process;
Step 302 is when whether the distributing slot resources of front opening is refused; If, execution in step 303; Otherwise, execution in step 307;
Step 303 judges whether current area exists inaccessible time slot, if, execution in step 304; Otherwise, execution in step 311;
Step 304, for the user distributes the resource that comprises inaccessible time slot, execution in step 305 then again;
Step 305 judges whether resource allocation is successful, if be allocated successfully, and execution in step 306; Otherwise, execution in step 311;
Step 306 sends CELL RECONFIGURATION REQUEST message to respective cell, and the inaccessible time slot that comprises in the resource of being distributed is opened; Execution in step 314 then;
Step 307 is obtained the load thresholding that the triggering time slot is opened from the webmaster backstage;
Step 308 is judged behind the business admission time-slot load whether greater than triggering the load thresholding that time slot is opened, if, execution in step 309; Otherwise, execution in step 314;
Step 309 judges whether current area exists inaccessible time slot, if, execution in step 310; Otherwise, execution in step 314;
Step 310 sends CELL RECONFIGURATION REQUEST message to respective cell, will open apart from the relative inaccessible time slot far away of business time-slot up-downgoing transfer point; Execution in step 314 then;
Step 311 judges whether this resource allocation is that the professional foundation of CS, CS are professional and switches or the triggering of PS raising speed rate; If, execution in step 312; Otherwise, execution in step 313;
Step 312, the business admission failure;
Step 313, resource allocation again after service rate gives a discount.
Step 314, the resource allocation flow process finishes.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. dynamically control the method for business time-slot according to cell load for one kind, it is characterized in that, may further comprise the steps:
(1) determines up/descending total business time-slot number;
(2) determine up/descending effective traffic Time Slot Occupancy number;
(3) determine the frequency number;
(4) according to described up/descending total business time-slot number, described up/descending effective traffic Time Slot Occupancy number and described frequency number determine up/descending closable timeslot number;
For circuit-switched service, described effective traffic Time Slot Occupancy number is as the criterion with the circuit-switched service number; For packet switching service that is carried on dedicated channel and voice and packet data concurrent service, described effective Time Slot Occupancy number is as the criterion with actual Time Slot Occupancy number; For the high-speed downlink grouped data access service, for the sub-district of supporting that high-speed downlink grouped data inserts, the effective Time Slot Occupancy number of described DSCH Downlink Shared Channel is as the criterion with the actual number that takies; Effective Time Slot Occupancy number of following special physical channel is as the criterion with the DPCH number and calculates; For the common signal channel that is carried on business time-slot, the business time-slot of common signal channel effectively takies number and is as the criterion with the actual number that takies.
2. the method for claim 1 is characterized in that, the described up closable timeslot number in the step (4)=(up total business time-slot number-up effective traffic Time Slot Occupancy number)/frequency number.
3. the method for claim 1 is characterized in that, the descending closable timeslot number in the step (4)=(descending total business time-slot number-descending effective traffic Time Slot Occupancy number)/frequency number.
4. the method for claim 1 is characterized in that, further may further comprise the steps:
(5) compare the professional up effective Time Slot Occupancy number and the uplink service timeslot number of this professional frequency, when both were identical, the ascending time slot of described frequency can not be inaccessible.
5. the method for claim 1 is characterized in that, further may further comprise the steps:
(6) compare the professional descending effective Time Slot Occupancy number and the downlink business timeslot number of this professional frequency, when both were identical, the descending time slot of described frequency can not be inaccessible.
6. the method for claim 1 is characterized in that, further may further comprise the steps:
(7) common signal channel is configured in apart from the business time-slot up-downgoing transfer point time slot far away.
7. the method for claim 1 is characterized in that, further may further comprise the steps:
(8) distribute not inaccessible resource;
(9) judge whether to exist following situation: not inaccessible time slot refusal is professional, and current existence is in the time slot of blocked state, or time-slot load is opened the triggering thresholding greater than time slot after the not inaccessible time slot admission service, and current existence is in the time slot of blocked state; If exist, distribute or open the resource that is in blocked state.
8. method as claimed in claim 7 is characterized in that, further may further comprise the steps:
(10) judge whether resource is allocated successfully, when resource allocation success, and when comprising inaccessible time slot in the resource of being distributed, send that Radio Link is set up, before the reconfiguration message, send cell re-configuration to respective cell and put request message, the inaccessible time slot that will be referred to is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101070995A CN101312582B (en) | 2007-05-25 | 2007-05-25 | Method for dynamic controlling service time slot on the basis of cell load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101070995A CN101312582B (en) | 2007-05-25 | 2007-05-25 | Method for dynamic controlling service time slot on the basis of cell load |
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| Publication Number | Publication Date |
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| CN101312582A CN101312582A (en) | 2008-11-26 |
| CN101312582B true CN101312582B (en) | 2011-09-21 |
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| CN2007101070995A Expired - Fee Related CN101312582B (en) | 2007-05-25 | 2007-05-25 | Method for dynamic controlling service time slot on the basis of cell load |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102104937B (en) * | 2009-12-17 | 2013-10-16 | 中兴通讯股份有限公司 | Method and system for reducing power consumption under multi-frequency range group net |
| CN102802242A (en) * | 2011-05-23 | 2012-11-28 | 中兴通讯股份有限公司 | Power saving method for time division-synchronous code division multiple access system and radio network controller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192300A (en) * | 1995-06-05 | 1998-09-02 | 全点有限公司 | Timing adjustment control for efficient time division duplex communication |
| CN1964209A (en) * | 2006-11-27 | 2007-05-16 | 武汉虹信通信技术有限责任公司 | A method to realize time division synchronous CDMA repeater power saving |
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- 2007-05-25 CN CN2007101070995A patent/CN101312582B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192300A (en) * | 1995-06-05 | 1998-09-02 | 全点有限公司 | Timing adjustment control for efficient time division duplex communication |
| CN1964209A (en) * | 2006-11-27 | 2007-05-16 | 武汉虹信通信技术有限责任公司 | A method to realize time division synchronous CDMA repeater power saving |
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| CN101312582A (en) | 2008-11-26 |
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