CN101166152B - A method and device for scheduling E-DCH non-service link - Google Patents
A method and device for scheduling E-DCH non-service link Download PDFInfo
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- CN101166152B CN101166152B CN2007101236755A CN200710123675A CN101166152B CN 101166152 B CN101166152 B CN 101166152B CN 2007101236755 A CN2007101236755 A CN 2007101236755A CN 200710123675 A CN200710123675 A CN 200710123675A CN 101166152 B CN101166152 B CN 101166152B
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Abstract
When non-load resource of E-DCH non-service link is not sufficient, the method allows the E-DCH non-service link to carry out RGDOWN dispatching. The device includes following modules: judgment modulein use for judging whether non-load resource is sufficient; control module allows the E-DCH non-service link to carry out RGDOWN dispatching when it is determined that non-load resource is not sufficient. Through adjusting non-service link of HSUPA of user, the invention reduces consumption of Node B resources by the E-DCH non-service link so as to raise stability of system.
Description
Technical field
The present invention relates to the communications field, particularly a kind of non-service link dispatching method and device.
Background technology
HSUPA (access of high speed uplink bag) is important new features in third generation wireless telecommunications WCDMA (Wideband Code Division Multiple Access (WCDMA)) standard, and with respect to original R99 version, HSUPA has increased by two uplink physical channels and three down physical channels on physical layer.Network side is transferred to Node B (node B) with Mac layer (media access control layer) scheduling by RNC (radio network controller), Node B each according to the load resource of eating dishes without rice or wine, Iub mouth (interface between base station and the radio network controller) resource, Nodc B uplink demodulation resource etc. dispatching cycle and combine the ability of UE (subscriber equipment) and ACK/NACK (affirmations/non-affirmation) message of UE feedback etc. to UE allocation schedule resource, thereby provides maximized up throughput for system.At 3GPP (third generation partner program) protocol definition the notion of service link collection and non-service link.The service link collection has guaranteed the consistency of Node B scheduling result in a plurality of sub-districts, and simultaneously, RG (RelativcGrant, relative authorization) result's merging can improve the parsing accuracy of UE to the RG channel.When UE was in the relatively poor sub-district of some channel quality, UE may misread the RG authorization value that network side.And, defined non-service link for fear of this situation.Typical service link collection is service E-DCH (EnhanccdDCH, enhancement type special channel) link set (Serving E-DCH RLS or Serving RLS), in the residing cell set of UE, comprise Serving cell, and UE can merge the RG information that sends in the cell set, and a UE has only a service link collection usually.Typical non-service link is a non-service E-DCH link (Non-serving E-DCH RL or Non-serving RL): a certain the E-DCH of UE, this E-DCH do not belong to service E-DCH link set.On this E-DCH link, UE can only receive the RG scheduling.Each UE can have 0,1 and many non-service E-DCH links.
The present inventor finds, though defined the condition to non-service link scheduling RG DOWN result in the prior art, these conditions have only been considered load resource and do not considered the unsupported resource of NodeB side.Therefore, in the prior art, if Node B can not send RGDOWN to the non-service UPA link that belongs to this NodeB when the unsupported resource-constrained and load resource of NodeB is limited.For example: data can be sent to RNC after the data of the non-service E-DCH link that Node B correctly demodulates and handle.When the Iub mouth sends when congested, need the dispatched users reduction of speed to alleviate the pressure of Iub mouth.And if this moment user non-service link place the sub-district schedulable condition that do not satisfy above-mentioned two non-service links just can not send RGDOWN to the user.When the user keeps original authorization value to carry out transfer of data, will cause Iub mouth packet loss, thereby influence system-wide performance like this.
Summary of the invention
Embodiment of the invention problem to be solved is dispatching method and the device that proposes a kind of more rational non-service link, and systematic function is optimized.
The embodiment of the invention provides a kind of E-DCH non-service link dispatching method, when unsupported inadequate resource, allows non-service link is carried out the RGDOWN scheduling.
Another embodiment of the present invention provides a kind of E-DCH non-service link dispatching device, comprising:
Judge module is used to judge whether unsupported resource is sufficient;
Control module is used for when unsupported inadequate resource, allows described non-service link is carried out the RGDOWN scheduling.
The embodiment of the invention is passed through the scheduling result of the non-service link of adjustment user HSUPA, thereby has reduced the consumption of non-service E-DCH link to Node B resource, has promoted the stability of system.
Description of drawings
Fig. 1 is the flow chart of one embodiment of the invention
Fig. 2 is the system schematic of another embodiment of the present invention
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, technical scheme of the present invention is further elaborated below in conjunction with the accompanying drawing embodiment that develops simultaneously.
Embodiment one
Present embodiment is limited as the implementation method of example explanation to the non-service link scheduling with the bandwidth resources in the unsupported resource of E-DCH link:
S1 judges that the load resource of current E-DCH non-service link is whether sufficient, if deficiency then allow non-service link is carried out the RGDOWN scheduling, if the load resource abundance would then enter step S2;
For eating dishes without rice or wine, whether sufficient judgement thresholding can comprise pre-configured received bandwidth total power (Received Total Wideband Power, RTWP) desired value and pre-configured targeted loads ratio to the load resource of E-DCH non-service link;
Usually, if RTWP accounts for the ratio of load summation of whole E-DCH links greater than pre-configured targeted loads ratio greater than the load of pre-configured RTWP desired value and non-service E-DCH link, current time interface-free resources deficiency then is described, and the reason of inadequate resource is because the load resource deficiency causes.At this moment, in order to improve the stability of a system, should on this E-DCH link, allow UE scheduling RGDOWN is carried out the reduction of speed operation;
S2 judges that the bandwidth resources of current E-DCH non-service link are whether sufficient, if deficiency then allow non-service link is carried out the RGDOWN scheduling;
Among the step s1 whether sufficient load resource two judged that thresholding can reflect whether the load resource of E-DCH non-service link UE side needs to limit, but, the load resource situation of only considering the UE side is not enough, also should pay attention to for the unsupported resource situation of network side.In fact, Iub port band width inadequate resource between Node B and RNC, take place when congested, judge thresholdings if this moment, congested sub-district, Iub mouth link corresponding place took place above two among the s1, Node B just can not dispatch RGDOWN to UE, thereby cause Iub mouth packet loss, thereby influence systematic function;
Therefore in step s2, present embodiment needs also whether abundance is judged to unsupported resource.With the bandwidth resources in the unsupported resource is example, concrete judgement thresholding can comprise that Iub mouth target bandwidth (IubBandWidth Target, IB Target) and non-service E-DCH link account for E-DCH link total bandwidth target occupancy ratio (Non-serving E-DCH to total E-DCH Iub BandWidth Ratio).If the current bandwidth of Iub mouth surpasses the actual occupancy that target bandwidth and non-service E-DCH link account for E-DCH link total bandwidth and surpasses the target occupancy, then illustrative system bandwidth resources deficiency and unsupported resource occupation too much bandwidth resources.At this moment, Node B may need non-service link is carried out the RGDOWN scheduling;
Generally, default Iub mouth target bandwidth with target occupancy ratio because the host-host protocol that the Iub mouth uses might be different, corresponding identical ETFCI (E-DCH Transport Format CombinationIndicator, E-DCH Channel Transmission mode combinations indication) the Iub mouth resource that takies under different host-host protocols often also is different, therefore default Iub mouth target bandwidth and non-service E-DCH link account for E-DCH link total bandwidth target occupancy than the time be configured in conjunction with different host-host protocols and can reach better effect;
It is to be noted, in the present embodiment, s2 judges that non-service link takies two predetermined conditions of too much bandwidth resources, the current bandwidth that is the Iub mouth accounts for the actual occupancy of E-DCH link total bandwidth above the target occupancy above target bandwidth and non-service E-DCH link, if one of them satisfies, then can judge the shared resource of unsupported link this moment and in whole local resource pond, take larger proportion, but, carry out reduction of speed so also can not send RGDOWN to unsupported link because this moment, the local resource pond did not also surpass load fully;
Present embodiment be at the bandwidth class in the unsupported resource resource-constrained for an embodiment, at other similar unsupported resources, Channel Elements (Channel Element for example, CE) number, the non-service E-DCH user number of access etc. also can be introduced the method that present embodiment provides, when deficiency appears in these unsupported resources, also should allow UE scheduling RGDOWN is carried out the reduction of speed operation.
Embodiment two
See also shown in Figure 1, the idiographic flow that present embodiment is introduced, as follows:
A1: the RTWP desired value RTWP Target of each sub-district among the Node B and the target bandwidth and the IB Target of each Iub mouth are set;
A2: the real-time RTWP value of obtaining each sub-district;
A3: relatively whether the current RTWP value in sub-district has surpassed RTWP Target.If do not surpass, more next sub-district.All sub-districts enter A5 after relatively finishing.If the current RTWP value in certain sub-district surpasses RTWP Target, then enter A4;
It is pointed out that not sending RGDOWN in this step immediately is because non-service link does not belong to the user of this NodeB control, so NodeB is not generally easily to its scheduling
A4: calculate the ratio that all non-service E-DCH link loads account for E-DCH link total load;
The load η of the current whole E-DCH links of calculation plot (comprising service link and non-service link)
All
Calculate the load η of current non-service link
No_serving
Calculate the ratio that all non-service E-DCH links account for total E-DCH link
R
load_no_serving＝η
no_serving/η
all
Relatively whether this ratio accounts for E-DCH link total load target occupancy ratio above non-service E-DCH link.If surpassed, illustrated that then self local resource transships, and the reason of overload is that load resource by non-service link causes.At this moment, NodeB sends RGDOWN can for the whole non-service E-DCH links in this sub-district
A5: obtain the real-time occupied bandwidth on current each Iub mouth;
A6: relatively whether the current occupied bandwidth of Iub mouth has surpassed Iub mouth target bandwidth, if do not surpass, and more next Iub mouth.If the current occupied bandwidth of Iub mouth surpasses Iub mouth target bandwidth, enter A7, based on the reason same with steps A 3, also direct transmission RGDOWN not here, but further judge the bandwidth occupancy ratio;
A7: the bandwidth β that calculates current whole E-DCH links (comprising service link and non-service link) on this Iub mouth
All
Calculate the bandwidth β that current non-service link takies
No_serving
Calculate the bandwidth ratio that all non-service E-DCH links account for total E-DCH link
R
BW_no_serving＝β
no_serving?/β
all
A8: relatively whether this ratio accounts for E-DCH link bandwidth target occupancy thresholding above non-service E-DCH link, if surpassed, illustrated that then self local resource has surpassed load, and the reason of overload is that the bandwidth resources by non-service link cause, at this moment can allow to send RGDOWN, send RGDOWN for the whole non-service E-DCH link of this Iub mouth correspondence according to different scheduling strategies and carry out reduction of speed;
Embodiment three
See also shown in Figure 2ly, present embodiment provides a kind of E-DCH non-service link dispatching device, specifically can comprise following module:
Module 1 is used to judge whether the bandwidth that takies on each Iub mouth surpasses predetermined Iub mouth target bandwidth;
Module 2 is used to judge that whether described E-DCH non-service link bandwidth accounts for the ratio of E-DCH link total bandwidth above predetermined target occupancy;
Module 3 is used for judged result when module 1 and module 2 and is when being described E-DCH non-service link is carried out the RGDOWN scheduling;
Module 1 and module 2 are performed is that whether abundance is judged for bandwidth resources to the unsupported class on current each Iub mouth, when the judged result of module 1 and module 2 is when being, overload has appearred in the resource pool that the sub-district is described, and the reason of overload is because unsupported inadequate resource causes, module 3 sends RGDOWN and carries out the reduction of speed work according to the judged result of module 1 and module 2 at this moment.
Above embodiment is only in order to illustrating technical scheme of the present invention, but not the present invention is made restricted reason.Although the present invention is had been described in detail with reference to above-mentioned preferred embodiment, those of ordinary skill in the art should manage: it still can make amendment or be equal to replacement technical scheme of the present invention, and this modification or be equal to the spirit and scope that replacement does not break away from technical solution of the present invention.
Claims (7)
1. an E-DCH non-service link dispatching method is characterized in that, when the unsupported inadequate resource of E-DCH non-service link, allows described E-DCH non-service link is carried out the RGDOWN scheduling.
2. dispatching method as claimed in claim 1, it is characterized in that described unsupported inadequate resource specifically comprises: the bandwidth that takies on each Iub mouth has surpassed the ratio that predetermined Iub mouth target bandwidth and described E-DCH non-service link bandwidth account for E-DCH link total bandwidth and has surpassed predetermined target occupancy.
3. dispatching method as claimed in claim 1 is characterized in that, also comprises when E-DCH non-service link load resource is not enough, allows described E-DCH non-service link is carried out the RGDOWN scheduling.
4. dispatching method as claimed in claim 3, it is characterized in that described load resource deficiency specifically comprises: the received bandwidth total power RTWP of current time accounts for E-DCH link total load ratio above pre-configured targeted loads ratio greater than the load of pre-configured RTWP desired value and described E-DCH non-service link.
5. an E-DCH non-service link dispatching device is characterized in that, comprising:
Judge module is used to judge whether unsupported resource is sufficient;
Control module is used for when judging the unsupported inadequate resource of E-DCH non-service link, allows described E-DCH non-service link is carried out the RGDOWN scheduling.
6. device as claimed in claim 5 is characterized in that, described judge module specifically comprises:
Module 1 is used to judge whether the bandwidth that takies on each Iub mouth surpasses predetermined Iub mouth target bandwidth;
Module 2 is used to judge that whether described E-DCH non-service link bandwidth accounts for the ratio of E-DCH link total bandwidth above predetermined target occupancy.
7. device as claimed in claim 6 is characterized in that, described control module specifically comprises:
Module 3 is used for judged result when module 1 and module 2 and is when being described E-DCH non-service link is carried out the RGDOWN scheduling.
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| 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 |
| CN103052133B (en) * | 2011-10-14 | 2015-03-18 | 华为技术有限公司 | Method and device for improving system capacity |
| CN109862620B (en) * | 2019-03-12 | 2022-03-15 | 中国联合网络通信集团有限公司 | User scheduling method and base station for communication cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1909734A (en) * | 2006-08-08 | 2007-02-07 | 华为技术有限公司 | Communication method for mobile terminal and base station |
| CN101026799A (en) * | 2007-03-13 | 2007-08-29 | 中兴通讯股份有限公司 | UE scheduled authorization request assignment and HSUPA scheduling performance improving method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1909734A (en) * | 2006-08-08 | 2007-02-07 | 华为技术有限公司 | Communication method for mobile terminal and base station |
| CN101026799A (en) * | 2007-03-13 | 2007-08-29 | 中兴通讯股份有限公司 | UE scheduled authorization request assignment and HSUPA scheduling performance improving method |
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