CN100479583C - Method and system for scheduling high-speed uplink packet access user load - Google Patents
Method and system for scheduling high-speed uplink packet access user load Download PDFInfo
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Abstract
The invention relates to a method for distributing high-speed ascending grouped accessed into user load, wherein it uses base station node, via preset value to find the low load threshold of region; via maximum target receiving bandwidth total power, finding the up load threshold; accessing high-speed ascending group into user load; controlling the user load between up and low limits. The invention also discloses a relative system, which comprises base station node, for finding the low load threshold via preset value, and finding the up load threshold via the maximum target receiving bandwidth total power sent from wireless network controller, and controlling the user load between up and low limits. The invention can avoid overload and confirm signal quality.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and system of scheduling high-speed uplink packet access user load.
Background technology
The high speed uplink packet access (High Speed Uplink Packet Access, HSUPA) agreement is the important development direction of Wideband Code Division Multiple Access (WCDMA) (WCDMA), but its back compatible is in WCDMA R99 version.With respect to original R99 version, utilize the HSUPA technology can fully improve up user's the hardware circuit solution and the throughput of cell uplink, therefore have a good application prospect.
HSUPA is different from one of feature of WCDMA R99, is the fast dispatch technology of having introduced based on base-station node (NodeB).Fast dispatch based on Node B, determine a cell load thresholding by Node B, with this load-threshold is benchmark, judge current area load surplus, according to judged result, send scheduling authorization to the user, the ascending resource that each user's of rapid adjustment maximum adjustable is used is in the hope of rationally utilizing ascending resource to greatest extent.
Wherein scheduling authorization (Scheduling Grant) is the resource indication that Node B sends to subscriber equipment, be divided into absolute grant and relative authorization, absolute grant is by absolute grant (Absolute Grant, AG) channel sends, (Relative Grant, RG) channel sends relative authorization by relative authorization.
Based on the fast dispatch process of Node B as shown in Figure 1, specifically describe as follows:
Cell load thresholding=1-makes an uproar at the bottom of the sub-district/maximum Target RTWP
Wherein, make an uproar at the bottom of the sub-district and be meant RTWP value when the sub-district does not have the user, obtain the method for making an uproar at the bottom of the sub-district and have two kinds, a kind ofly be reference received bandwidth total power (the Received Total Wide Band Power in the Physical Shared Channel reconfigure command that issues by RNC, RTWP) obtain, another kind is directly to be obtained by Node B itself.
Node B calculates community user load (Cellload) according to all users' of current area loading condition.
In above-mentioned flow process, the situation that the community user load that is occurred surpasses the cell load thresholding is called as the cell load overload, in case the cell load overload takes place, will cause distributing to user's inadequate resource, causes that the subscriber signal quality descends.
Above-mentioned based on the fast dispatch process of Node B in Node B only HSUPA user is issued scheduling authorization, and non-HSUPA user is not issued scheduling authorization, simultaneously, be used for determining that the maximum Target RTWP of cell load thresholding is at all user's data of sub-district, that is to say it is load-threshold at all users that comprise HSUPA user and non-HSUPA user, what Node B calculated also is all users' load, non-HSUPA user load is not owing to be subjected to scheduling controlling fully, take resource in not stopping variation, above-mentioned flow process is controlled at the community user load near the cell load thresholding, in case non-HSUPA user's transmitting data stream amount increases, load is risen, and will be very easy to cause the cell load overload.
In addition, because sub-district user load scheduling result not necessarily can be consistent with the scheduling authorization result in scheduling process, if it is bad such as down channel quality, cause signal in transmission course, to make a mistake, subscriber equipment is misexplained the order of reduction of speed rate, just the community user load is controlled near the cell load thresholding, also is very easy to cause the generation of cell load overload.
As from the foregoing, in the existing fast dispatch process, be very easy to cause the generation of cell load overload owing to above-mentioned reason based on Node B.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and system of scheduling high-speed uplink packet access user load, to realize effectively preventing the cell load overload.
For achieving the above object, the invention provides a kind of method of scheduling high-speed uplink packet access user load, this method comprises:
Base-station node is determined cell load thresholding lower limit according to default numerical value, determines the cell load thresholding upper limit according to the maximum target received bandwidth total power; Scheduling high-speed uplink packet access user load is controlled at the community user load between the upper and lower bound of cell load thresholding.
Wherein, described base-station node is preset a configurable parameter, determines that according to default configurable parameter the step of cell load thresholding lower limit comprises:
Base-station node obtains to make an uproar and the maximum target received bandwidth total power at the bottom of the sub-district;
Base-station node is according to computing formula:
Cell load thresholding lower limit=1-makes an uproar at the bottom of the sub-district/(maximum target received bandwidth total power-configurable parameter)
Calculate described cell load thresholding lower limit.
Wherein, described configurable parameter overload rate as required is provided with on base-station node.
Wherein, radio network controller is default to strengthen dedicated transmission channel target received bandwidth total power, and sends to base-station node, and described base-station node determines that according to default numerical value the step of cell load thresholding lower limit comprises:
Base-station node obtains to make an uproar at the bottom of the sub-district and to strengthen dedicated transmission channel target received bandwidth total power;
Base-station node is according to formula:
Cell load thresholding lower limit=1-dedicated transmission channel target received bandwidth total power of making an uproar at the bottom of the sub-district/strengthen
Calculate described cell load thresholding lower limit.
Wherein, described radio network controller is default to strengthen dedicated transmission channel target received bandwidth total power, and the step that sends to base-station node comprises:
Radio network controller is provided with enhancing dedicated transmission channel target received bandwidth total power according to the high-speed uplink packet access user quantity that the sub-district allows to insert, and this numerical value is added in the Physical Shared Channel reconfigure command protocol message, send to base-station node.
Wherein, describedly determine that according to the maximum target received bandwidth total power step of the cell load thresholding upper limit comprises:
Radio network controller sends the maximum target received bandwidth total power to base-station node, and base-station node obtains to make an uproar at the bottom of the sub-district;
Base-station node is according to formula: the cell load thresholding upper limit=1-makes an uproar at the bottom of the sub-district/the maximum target received bandwidth total power
Calculate the cell load thresholding upper limit.
Wherein, described method also comprises:
In base-station node configuration, by base-station node directly obtain to make an uproar at the bottom of the sub-district or issue the sub-district by radio network controller at the bottom of make an uproar to base-station node.
Wherein, described scheduling high-speed uplink packet access user load, the step that the community user load is controlled between the upper and lower bound of cell load thresholding is included as:
Judge that whether the current area user load is between the cell load thresholding upper limit lower limit: if the current area user load is not between cell load thresholding upper limit lower limit, and greater than the cell load thresholding upper limit, then reduce the transmission rate of high-speed uplink packet access user, reduce user load; If the current area user load is between cell load thresholding upper limit lower limit, and, then promote the transmission rate of high-speed uplink packet access user, promote user load less than cell load thresholding lower limit.
Wherein, described scheduling high-speed uplink packet access user load, the step that the community user load is controlled between the upper and lower bound of cell load thresholding also comprises:
If the current area user load is between cell load thresholding upper and lower bound, judge that then high-speed uplink packet access user has or not the schedule information request of changing down,, then the user is sent the order of reduction of speed rate by absolute grant channel if having, downward modulation user's transmission rate reduces user load.
Wherein, the step of the transmission rate of described reduction high-speed uplink packet access user comprises:
Judge that high-speed uplink packet access user has or not the schedule information request of changing down:
If the user has the schedule information request of changing down, then the user is sent the order of reduction of speed rate, the downward modulation user rate by absolute grant channel;
If the user does not have the schedule information request of changing down, then the user is sent the order of reduction of speed rate, the downward modulation user rate by the relative authorization channel.
Wherein, the step of the transmission rate of described lifting high-speed uplink packet access user comprises:
Judge that high-speed uplink packet access user has or not the schedule information request that promotes speed:
If the user has the schedule information request that promotes speed, then the user is sent the order of raising speed rate by absolute grant channel, raise user rate;
If the user does not have the schedule information request that promotes speed, then the user is sent the order of raising speed rate by the relative authorization channel, raise user rate.
Wherein, described judgement high-speed uplink packet access user has or not the step of schedule information request to comprise: the priority orders according to high-speed uplink packet access user sorts for the user, judges successively that according to the order that sequences high-speed uplink packet access user has or not the schedule information request.
The present invention also provides a kind of system of scheduling high-speed uplink packet access user load, comprises radio network controller, base-station node and subscriber equipment:
Wherein, base-station node is further used for: determine cell load thresholding lower limit according to default numerical value, and determine the cell load thresholding upper limit according to the maximum target received bandwidth total power that radio network controller sends;
This base-station node further comprises the entity that is used to dispatch, and is used for scheduling high-speed uplink packet access user load, and the community user load is controlled between the described cell load thresholding upper and lower bound;
Described subscriber equipment links to each other with base-station node, accepts the scheduling of base-station node.
Wherein, described base-station node is made an uproar at the bottom of according to default configurable parameter, sub-district and the maximum target received bandwidth total power calculates cell load thresholding lower limit, to realize the function of described definite cell load thresholding lower limit.
Wherein, described base-station node is further used for revising described configurable parameter.
Wherein, described radio network controller also is used for default enhancing dedicated transmission channel target received bandwidth total power, and this gross power is sent to base-station node;
Make an uproar at the bottom of enhancing dedicated transmission channel target received bandwidth total power that described base-station node basis receives and the sub-district and calculate cell load thresholding lower limit, to realize the function of described definite cell load thresholding lower limit.
Wherein, described radio network controller is used for the default dedicated transmission channel target received bandwidth total power that strengthens, and this gross power is sent to base-station node is: radio network controller is used for being provided with according to the high-speed uplink packet access user quantity that the sub-district allows to insert and strengthens dedicated transmission channel target received bandwidth total power, and this numerical value is added in the Physical Shared Channel reconfigure command protocol message, be sent to base-station node.
Wherein, make an uproar at the bottom of maximum target received bandwidth total power that described base-station node sends according to radio network controller and the sub-district and calculate the cell load thresholding upper limit, to realize the function of described definite cell load thresholding upper limit.
As from the foregoing, the method and system of a kind of scheduling high-speed uplink packet access user load provided by the invention, kept former cell load thresholding of the prior art as the upper limit, and increased a new cell load thresholding as lower limit, with the scope between two thresholdings as buffer strip, the community user load is controlled at the scope of this buffer strip by scheduling, like this in case situations such as non-HSUPA user's load variations or scheduling result and Authorization result be inconsistent take place, all will can not cause the cell load overload easily owing to the existence of this buffer strip.
The present invention is when the current area user load is not between bound, provided a kind of processing scheme: the user that corresponding dispatch request is arranged is sent the absolute grant order dispatch, the user who does not have corresponding dispatch request is sent relative authorization command to dispatch, the community user load is controlled between the bound, has considered user's demand to greatest extent; Simultaneously at the situation of current area user load between bound, also provided another kind of processing scheme: only when the dispatch request of changing down is arranged, send the order of reduction of speed rate by absolute grant channel, the current area user load is controlled near the upper limit, the position of certain surplus is arranged again.Above technical scheme when providing a prevention that the buffer strip of cell load overload takes place, has guaranteed to offer the maximum available resources of user again as far as possible.
Description of drawings
Fig. 1 is the flow chart of art methods;
Fig. 2 is a system construction drawing of the present invention;
Fig. 3 is the embodiment of the invention one flow chart;
Fig. 4 is the embodiment of the invention two flow charts.
Embodiment
The present invention is a kind of method and system of scheduling high-speed uplink packet access user load, is applicable to the fast dispatch process based on Node B.With respect to only providing a cell load thresholding in the prior art as the situation of adjusting benchmark, the present invention has kept original cell load thresholding as the upper limit, increased a new cell load thresholding simultaneously as lower limit, with the scope between two thresholdings as buffer strip, to reach when distributing maximum rate to the user as far as possible, reserve the generation that the cell load overload is better prevented in certain leeway.
Because obtaining the method for cell load thresholding lower limit has a variety of, the present invention is directed to the different methods that obtain cell load thresholding lower limit two kinds of execution modes are provided, will introduce two different embodiment of the system of scheduling high-speed uplink packet access user load below respectively.
Embodiment one system configuration of the system of high-speed uplink packet access user load as shown in Figure 2, native system comprises RNC201, has the Node B202 of the MAC-e entity that is used to dispatch, subscriber equipment 203, the each several part function is as follows:
RNC201: be used to issue Physical Shared Channel and reset order (PHYSICAL SHAREDCHANNEL RECONFIGURATION REQUEST), carry the maximum target received bandwidth total power (Target RTWP) that is used for the calculation plot load-threshold in this order to Node B.
Node B202: be used for a default configurable parameter, and calculate cell load thresholding lower limit with this configurable parameter and maximum TargetRTWP, the maximum Target RTWP that sends according to RNC calculates the cell load thresholding upper limit.
The incremental loading (delta) of above-mentioned configurable parameter for reducing is provided with by operator's overload rate as required.
Wherein cell load thresholding upper limit computing formula is:
The cell load thresholding upper limit=1-makes an uproar at the bottom of the sub-district/maximum Target RTWP
Cell load thresholding lower limit computing formula is:
Cell load thresholding lower limit=1-makes an uproar at the bottom of the sub-district/(maximum Target RTWP-delta)
Wherein, the MAC-e entity that is used to dispatch in Node B is used for: the scheduling high-speed uplink packet access user apparatus of load is controlled at the community user load between the described cell load thresholding upper and lower bound.
Wherein said MAC-e entity is that the HSUPA agreement is at medium access control (Medium AccessControl, MAC) entity of layer increase, accordingly in Universal Terrestrial Radio Access Network road (UTRAN) side, this entity then is positioned at Node B, is used to strengthen dedicated transmission channel (E-DCH) scheduling, E-DCH control and demultiplexing, HARQ function.
Subscriber equipment 203: insert Node B, accept the scheduling of MAC-e entity.
The embodiment two system structure and the embodiment one of the system of high-speed uplink packet access user load are basic identical, specifically as shown in Figure 2, comprise RNC201, have the Node B202 of the entity that is used to dispatch, subscriber equipment 203, and the each several part function is as follows:
RNC201: be used for enhancing dedicated transmission channel target received bandwidth total power (E-DCH Target Received Total Wide BandPower being set according to the high-speed uplink packet access user quantity that the sub-district allows to insert, E-DCH Target RTWP), and be added in the Physical Shared Channel replacement bidding protocol message and maximum Target RTWP is handed down to Node B together.
Node B202: the E-DCH Target RTWP that is used for sending according to RNC calculates cell load thresholding lower limit, and the maximum Target RTWP that sends according to RNC calculates the cell load thresholding upper limit.
Wherein cell load thresholding upper limit computing formula is:
The cell load thresholding upper limit=1-makes an uproar at the bottom of the sub-district/maximum Target RTWP
Cell load thresholding lower limit computing formula is:
Cell load thresholding lower limit=1-makes an uproar at the bottom of the sub-district/E-DCH Target RTWP
The MAC-e entity that is used to dispatch in Node B, the scheduling high-speed uplink packet access user apparatus of load is controlled at the community user load between the described cell load thresholding upper and lower bound.
Subscriber equipment 203: insert Node B, accept the scheduling of MAC-e entity.
More than be detailed description to the system of scheduling high-speed uplink packet access user load.
Next, this paper will describe the method with the corresponding scheduling high-speed uplink packet access user load of the foregoing description in detail, equally also will be divided into two embodiment and describe.
The embodiment one of the method for scheduling high-speed uplink packet access user load, in this embodiment one, preset a configurable parameter by Node B, determine cell load thresholding lower limit according to this configurable parameter, idiographic flow is referring to Fig. 3, below this paper will be described in detail step by step:
Step 301: at Node B one configurable parameter is set, the incremental loading (delta) of this configurable parameter for reducing can be provided with by operator's overload rate as required.
Step 302:Node B receives that physics that RNC issues shares reconfigure command and set up the HSUPA sub-district, obtains to make an uproar at the bottom of the sub-district, calculates the upper and lower bound of cell load thresholding:
The formula of the calculation plot load-threshold upper limit is:
The cell load thresholding upper limit=1-makes an uproar at the bottom of the sub-district/maximum Target RTWP.
The formula of calculation plot load-threshold lower limit is:
Cell load thresholding lower limit=1-makes an uproar at the bottom of the sub-district/(maximum Target RTWP-delta)
Maximum Target RTWP can obtain by the shared reconfigure command protocol message of physics that RNC is issued to Node B in the formula.
The acquisition methods of making an uproar at the bottom of the sub-district generally has two kinds: a kind of is that the physics that is issued by RNC is shared the reference RTWP that carries in the reconfigure command, is to make an uproar at the bottom of the sub-district with this with reference to RTWP; Another kind is directly to be obtained to make an uproar at the bottom of the sub-district by Node B itself.Under the situation that two kinds of methods can obtain, in order to determine based on any method, issue based on RNC in Node B selection of configuration, perhaps directly obtain: issue when being main with RNC based on Node B self, have only when RNC can't obtain with reference to RTWP, just directly obtain to make an uproar at the bottom of the sub-district by NodeB self; Directly obtain when being main with Node B self, when having only Node B self can't directly obtain to make an uproar at the bottom of the sub-district, just the physics that issues from RNC is shared the reconfigure command and is obtained with reference to RTWP.
Step 303:MAC-e entity calculates all users' of current area load sum when each scheduling in scheduling process, as the current area user load, be designated as Cellload; Simultaneously the HSUPA user who receives data is sorted; Judge that whether current area user load Cellload is between the cell load thresholding upper and lower bound: if Cellload is between cell load thresholding upper and lower bound, and less than cell load thresholding lower limit, then execution in step 304; If Cellload is between cell load thresholding upper and lower bound, then execution in step 308; If Cellload is not between cell load thresholding upper and lower bound, and greater than the cell load thresholding upper limit, then execution in step 311.
Step 304: the order that sequences according to step 303, judge that successively HSUPA user has or not schedule information request (the Scheduling Information that promotes speed, SI), then according to the order of judging, to HSUPA user's execution in step 305 of the schedule information request that promotes speed is arranged, to the HSUPA user that do not have the schedule information request that promotes speed execution in step 306 then.
Step 305:MAC-e entity sends raising speed rate order (UP) by absolute grant channel to HSUPA user, ask to raise user's transmission rate according to the user, improve user load, Cellload is promoted within the cell load thresholding upper and lower bound, execution in step 307 then.
Step 306:MAC-e entity sends raising speed rate order (UP) by the relative authorization channel to HSUPA user, raise user's transmission rate according to the surplus resources situation, improve user load, Cellload is promoted within the cell load thresholding upper and lower bound, execution in step 307 then.
Step 307: judging whether all ordering HSUPA users to be sent the order of raising speed rate, is that then flow process finishes, beginning new round scheduling process; Otherwise get back to step 304.
Step 308: according to the order that step 303 sequences, judge that successively HSUPA user has or not the schedule information request of changing down, then according to the order of judging, to HSUPA user's execution in step 309 of schedule information request that changing down is arranged; If HSUPA user does not have the schedule information request of changing down, then execution in step 310.
Step 309:MAC-e entity sends reduction of speed rate order (Down) by absolute grant channel to HSUPA user, ask to reduce user's transmission rate according to the user, reduce user load, to guarantee when offering the maximum available resources of user as far as possible, reserve certain leeway, execution in step 310 then.
Step 310: judging whether all ordering HSUPA users to be carried out the schedule information request judgement (being step 308) of no changing down, is that then flow process finishes, beginning new round scheduling process; Otherwise get back to step 308.
Step 311: the order that sequences according to step 303, judge that successively HSUPA user has or not the schedule information request of changing down, then according to the order of judging, to HSUPA user's execution in step 312 of schedule information request that changing down is arranged, to HSUPA user's execution in step 313 of the schedule information request of no changing down.
Step 312:MAC-e entity sends reduction of speed rate order (Down) by absolute grant channel to HSUPA user, ask to reduce user's transmission rate according to the user, reduce user load, Cellload is reduced within the cell load thresholding upper and lower bound, execution in step 314 then.
Step 313:MAC-e entity sends reduction of speed rate order (Down) by the relative authorization channel to HSUPA user, reduce user's transmission rate according to the actual situation that exceeds, reduce user load, Cellload is reduced within the cell load thresholding upper and lower bound, execution in step 314 then.
Step 314: judging whether all ordering HSUPA users to be sent the order of reduction of speed rate, is that then flow process finishes, beginning new round scheduling process; Otherwise get back to step 311.
The embodiment two of the method for scheduling high-speed uplink packet access user load, the scheme that adopts is, share optional cell of increase in the reconfigure command protocol message at physics: strengthen dedicated transmission channel target received bandwidth total power (E-DCH Target Received Total Wide Band Power, E-DCH TargetRTWP), determine cell load thresholding lower limit according to this E-DCH Target RTWP.
The protocol message that has added optional cell E-DCH Target RTWP is as shown in table 1:
Frequency Division Duplexing (FDD) message (FDD Message)
| Cell (IE)/group name (Group Name) | There is sign (Presence) | Cell number (Range) | IE type and reference (IE Type and Reference) | Semantic description (Semantics Description) | Significance level indication (Critical ity) | The significance level (Assigned Criticality) of distributing |
| . . . | . . . | . . . | . . . | . . . | . . . | . . . |
| Maximum target received bandwidth total power (Maximum Target Received Total Wide Band Power) | Optional O | 9.2.2.21a | Important (YES) | Refusal (reject) | ||
| . . . | . . . | . . . | . . . | . . . | . . . | . . . |
| E-DCH target received bandwidth total power (E-DCH Target Received Total Wide Band Power) | Optional O | Important (YES) | Can ignore (Ignore) | |||
| . . . | . . . | . . . | . . . | . . . | . . . | . . . |
Table 1
Idiographic flow is referring to Fig. 4, and embodiment two and embodiment one are except the method for determining sub-district thresholding lower limit is different, and other steps are basic identical, below this paper will be described in detail step by step:
Step 401:RNC is provided with E-DCH Target RTWP according to the high-speed uplink packet access user quantity that the sub-district allows to insert, and adds in the Physical Shared Channel reconfigure command protocol message as optional cell, sends to Node B.
Step 402:Node B receives that physics that RNC issues shares reconfigure command and set up the HSUPA sub-district, obtains to make an uproar at the bottom of the sub-district, calculates the upper and lower bound of cell load thresholding:
The formula of the calculation plot load-threshold upper limit is:
The cell load thresholding upper limit=1-makes an uproar at the bottom of the sub-district/maximum Target RTWP.
The formula of calculation plot load-threshold lower limit is:
Cell load thresholding lower limit=1-makes an uproar at the bottom of the sub-district/E-DCHTarget RTWP
Maximum Target RTWP can obtain by the shared reconfigure command protocol message of physics that RNC is issued to Node B in the formula.
The acquisition methods of making an uproar at the bottom of the sub-district is identical with embodiment one, can be provided with at Node B equally to issue based on RNC, perhaps directly obtains based on Node B self.
Step 403:MAC-e entity is in scheduling process, and the load of calculating all users of current area when each scheduling as the current area user load, is designated as Cellload; Simultaneously the HSUPA user who receives data is sorted; Judge that whether current area user load Cellload is between the cell load thresholding upper and lower bound: if Cellload is between cell load thresholding upper and lower bound, and less than cell load thresholding lower limit, then execution in step 404; If Cellload is between cell load thresholding upper and lower bound, then execution in step 408; If Cellload is not between cell load thresholding upper and lower bound, and greater than the cell load thresholding upper limit, then execution in step 411.
Step 404:, judge successively HSUPA user to have or not the schedule information request that promotes speed (Scheduling Information SI), has then execution in step 405, does not have then execution in step 406 according to the order that step 403 sequences.
Step 405:MAC-e entity sends raising speed rate order (UP) by absolute grant channel to HSUPA user, ask to raise user's transmission rate according to the user, improve user load, Cellload is promoted within the cell load thresholding upper and lower bound, execution in step 407 then.
Step 406:MAC-e entity sends raising speed rate order (UP) by the relative authorization channel to HSUPA user, raise user's transmission rate according to the surplus resources situation, improve user load, Cellload is promoted within the cell load thresholding upper and lower bound, execution in step 407 then.
Step 407: judging whether all ordering HSUPA users to be sent the order of raising speed rate, is that then flow process finishes, beginning new round scheduling process; Otherwise get back to step 404.
Step 408:, judge that successively HSUPA user has or not the schedule information request of changing down, has then execution in step 409 according to the order that step 403 sequences; If do not have, then execution in step 410.
Step 409:MAC-e entity sends reduction of speed rate order (Down) by absolute grant channel to HSUPA user, ask to reduce user's transmission rate according to the user, reduce user load, to guarantee when offering the maximum available resources of user as far as possible, reserve certain leeway, execution in step 410 then.
Step 410: judging whether all ordering HSUPA users to be carried out the schedule information request judgement (being step 308) of no changing down, is that then flow process finishes, beginning new round scheduling process; Otherwise get back to step 408.
Step 411: according to the order that step 403 sequences, judge that successively HSUPA user has or not the schedule information request of changing down, then execution in step 412 is arranged, do not have then execution in step 413.
Step 410:MAC-e entity sends reduction of speed rate order (Down) by absolute grant channel to HSUPA user, ask to reduce user's transmission rate according to the user, reduce user load, Cellload is reduced within the cell load thresholding upper and lower bound, execution in step 414 then.
Step 413:MAC-e entity sends reduction of speed rate order (Down) by the relative authorization channel to HSUPA user, reduce user's transmission rate according to the actual situation that exceeds, reduce user load, Cellload is reduced within the cell load thresholding upper and lower bound, execution in step 414 then.
Step 414: judging whether all ordering HSUPA users to be sent the order of reduction of speed rate, is that then flow process finishes, beginning new round scheduling process; Otherwise get back to step 411.
More than the method and system of a kind of scheduling high-speed uplink packet access user load provided by the present invention are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (18)
1, a kind of method of scheduling high-speed uplink packet access user load is characterized in that, this method comprises:
Base-station node is determined cell load thresholding lower limit according to default numerical value, determines the cell load thresholding upper limit according to the maximum target received bandwidth total power; Scheduling high-speed uplink packet access user load is controlled at the community user load between the upper and lower bound of cell load thresholding.
2, the method for scheduling high-speed uplink packet access user load as claimed in claim 1 is characterized in that, described base-station node is preset a configurable parameter, determines that according to default configurable parameter the step of cell load thresholding lower limit comprises:
Base-station node obtains to make an uproar and the maximum target received bandwidth total power at the bottom of the sub-district;
Base-station node is according to computing formula:
Cell load thresholding lower limit=1-makes an uproar at the bottom of the sub-district/(maximum target received bandwidth total power-configurable parameter)
Calculate described cell load thresholding lower limit.
3, the method for scheduling high-speed uplink packet access user load as claimed in claim 2 is characterized in that, described configurable parameter overload rate as required is provided with on base-station node.
4, the method for scheduling high-speed uplink packet access user load as claimed in claim 1, it is characterized in that, the default dedicated transmission channel target received bandwidth total power that strengthens of radio network controller, and send to base-station node, described base-station node determines that according to default numerical value the step of cell load thresholding lower limit comprises:
Base-station node obtains to make an uproar at the bottom of the sub-district and to strengthen dedicated transmission channel target received bandwidth total power;
Base-station node is according to formula:
Cell load thresholding lower limit=1-dedicated transmission channel target received bandwidth total power of making an uproar at the bottom of the sub-district/strengthen calculates described cell load thresholding lower limit.
5, the method for scheduling high-speed uplink packet access user load as claimed in claim 4 is characterized in that, described radio network controller is default to strengthen dedicated transmission channel target received bandwidth total power, and the step that sends to base-station node comprises:
Radio network controller is provided with enhancing dedicated transmission channel target received bandwidth total power according to the high-speed uplink packet access user quantity that the sub-district allows to insert, and this numerical value is added in the Physical Shared Channel reconfigure command protocol message, send to base-station node.
6, the method for scheduling high-speed uplink packet access user load as claimed in claim 1 is characterized in that, describedly determines that according to the maximum target received bandwidth total power step of the cell load thresholding upper limit comprises:
Radio network controller sends the maximum target received bandwidth total power to base-station node, and base-station node obtains to make an uproar at the bottom of the sub-district;
Base-station node is according to formula: the cell load thresholding upper limit=1-makes an uproar at the bottom of the sub-district/the maximum target received bandwidth total power
Calculate the cell load thresholding upper limit.
As the method for claim 2 or 4 or 6 described scheduling high-speed uplink packet access user loads, it is characterized in that 7, described method also comprises:
In base-station node configuration, by base-station node directly obtain to make an uproar at the bottom of the sub-district or issue the sub-district by radio network controller at the bottom of make an uproar to base-station node.
8, the method for scheduling high-speed uplink packet access user load as claimed in claim 1, it is characterized in that, described scheduling high-speed uplink packet access user load, the step that the community user load is controlled between the upper and lower bound of cell load thresholding is included as:
Judge that whether the current area user load is between the cell load thresholding upper limit lower limit: if the current area user load is not between cell load thresholding upper limit lower limit, and greater than the cell load thresholding upper limit, then reduce the transmission rate of high-speed uplink packet access user, reduce user load; If the current area user load is between cell load thresholding upper limit lower limit, and, then promote the transmission rate of high-speed uplink packet access user, promote user load less than cell load thresholding lower limit.
9, the method for scheduling high-speed uplink packet access user load as claimed in claim 8, it is characterized in that, described scheduling high-speed uplink packet access user load, the step that the community user load is controlled between the upper and lower bound of cell load thresholding also comprises:
If the current area user load is between cell load thresholding upper and lower bound, judge that then high-speed uplink packet access user has or not the schedule information request of changing down,, then the user is sent the order of reduction of speed rate by absolute grant channel if having, downward modulation user's transmission rate reduces user load.
10, the method for scheduling high-speed uplink packet access user load as claimed in claim 8 is characterized in that, the step of the transmission rate of described reduction high-speed uplink packet access user comprises:
Judge that high-speed uplink packet access user has or not the schedule information request of changing down:
If the user has the schedule information request of changing down, then the user is sent the order of reduction of speed rate, the downward modulation user rate by absolute grant channel;
If the user does not have the schedule information request of changing down, then the user is sent the order of reduction of speed rate, the downward modulation user rate by the relative authorization channel.
11, the method for scheduling high-speed uplink packet access user load as claimed in claim 8 is characterized in that, the step of the transmission rate of described lifting high-speed uplink packet access user comprises:
Judge that high-speed uplink packet access user has or not the schedule information request that promotes speed:
If the user has the schedule information request that promotes speed, then the user is sent the order of raising speed rate by absolute grant channel, raise user rate;
If the user does not have the schedule information request that promotes speed, then the user is sent the order of raising speed rate by the relative authorization channel, raise user rate.
12, as the method for claim 9 or 10 or 11 described scheduling high-speed uplink packet access user loads, it is characterized in that, described judgement high-speed uplink packet access user has or not the step of schedule information request to comprise: the priority orders according to high-speed uplink packet access user sorts for the user, judges successively that according to the order that sequences high-speed uplink packet access user has or not the schedule information request.
13, a kind of system of scheduling high-speed uplink packet access user load comprises radio network controller, base-station node and subscriber equipment, it is characterized in that:
Base-station node is further used for: determine cell load thresholding lower limit according to default numerical value, and determine the cell load thresholding upper limit according to the maximum target received bandwidth total power that radio network controller sends;
This base-station node further comprises the entity that is used to dispatch, and is used for scheduling high-speed uplink packet access user load, and the community user load is controlled between the described cell load thresholding upper and lower bound;
Described subscriber equipment links to each other with base-station node, accepts the scheduling of base-station node.
14, the system of scheduling high-speed uplink packet access user load as claimed in claim 13, it is characterized in that, described base-station node is made an uproar at the bottom of according to default configurable parameter, sub-district and the maximum target received bandwidth total power calculates cell load thresholding lower limit, to realize the function of described definite cell load thresholding lower limit.
15, the system of scheduling high-speed uplink packet access user load as claimed in claim 14 is characterized in that, described base-station node is further used for revising described configurable parameter.
16, the system of scheduling high-speed uplink packet access user load as claimed in claim 13 is characterized in that:
Described radio network controller also is used for default enhancing dedicated transmission channel target received bandwidth total power, and this gross power is sent to base-station node;
Make an uproar at the bottom of enhancing dedicated transmission channel target received bandwidth total power that described base-station node basis receives and the sub-district and calculate cell load thresholding lower limit, to realize the function of described definite cell load thresholding lower limit.
17, the system of scheduling high-speed uplink packet access user load as claimed in claim 16, it is characterized in that, described radio network controller is used for the default dedicated transmission channel target received bandwidth total power that strengthens, and this gross power is sent to base-station node is: radio network controller is used for being provided with according to the high-speed uplink packet access user quantity that the sub-district allows to insert and strengthens dedicated transmission channel target received bandwidth total power, and this numerical value is added in the Physical Shared Channel reconfigure command protocol message, be sent to base-station node.
18, as the system of claim 13,14,15,16 or 17 described scheduling high-speed uplink packet access user loads, it is characterized in that, make an uproar at the bottom of maximum target received bandwidth total power that described base-station node sends according to radio network controller and the sub-district and calculate the cell load thresholding upper limit, to realize the function of described definite cell load thresholding upper limit.
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| JP5168066B2 (en) * | 2008-10-01 | 2013-03-21 | 日本電気株式会社 | Mobile communication system, radio base station, and transmission rate allocation method |
| CN102056096A (en) * | 2009-10-28 | 2011-05-11 | 中国移动通信集团公司 | Wireless transmission, system and equipment for documents |
| CN102118796B (en) * | 2009-12-31 | 2013-04-24 | 华为技术有限公司 | Bandwidth control method, device and system |
| CN101765193B (en) * | 2010-01-28 | 2013-06-05 | 华为技术有限公司 | Method for scheduling resource in EDCH, user terminal and communication system |
| CN114521006A (en) * | 2020-11-20 | 2022-05-20 | 中国移动通信有限公司研究院 | Uplink scheduling method, device and base station |
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