CN101594687A - Wireless dispatching method in the TDS-CDMA system - Google Patents
Wireless dispatching method in the TDS-CDMA system Download PDFInfo
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- CN101594687A CN101594687A CNA2008100674738A CN200810067473A CN101594687A CN 101594687 A CN101594687 A CN 101594687A CN A2008100674738 A CNA2008100674738 A CN A2008100674738A CN 200810067473 A CN200810067473 A CN 200810067473A CN 101594687 A CN101594687 A CN 101594687A
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- 238000012913 prioritisation Methods 0.000 claims abstract description 11
- 238000004364 calculation method Methods 0.000 claims abstract description 4
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- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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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 the wireless dispatching method in a kind of TDS-CDMA system, may further comprise the steps: a: Node B sends to the prioritization module with this information after receiving the service/adjacent sub-district path loss information of each reporting of user; B: the prioritization module is according to described service/adjacent sub-district each user's of path loss information calculations dispatching priority; C: Node B is according to the big young pathbreaker user's ordering of dispatching priority, to having the user priority scheduling of high priority.Adopt the present invention, can suppress the interference of user to adjacent sub-district, reduce the needed transmitting power of user, reduced the constraint that causes by maximum transmission power, thereby can more effectively reach maximum throughput, and then the adjacent area that also greatly reduces each sub-district in the system disturbs, and the throughput of having been brought when having avoided causing the channel information mistake by the channel sudden change simultaneously descends.
Description
Technical field
The present invention relates to communication technique field, relate in particular to the wireless dispatching method in TD-SCDMA (TD SDMA) system.
Background technology
In 3-G (Generation Three mobile communication system), for the upstream packet business of higher rate is provided, improve spectrum utilization efficiency, 3GPP (3rd Generation Partnership Project, third generation partner program) in the standard of WCDMA (Wideband Code Division Multiple Access (WCDMA)) and TD-CDMA system, introduced HSUPA (High Speed Uplink Packet Access, high-speed uplink packet access technique) characteristic, promptly up enhancing characteristic.
Because following mobile communication system is based on data traffic transmission, so need carry out scheduling of resource to the data business, this is one of key character of HSUPA system.Dispatching algorithm is to be target with the maximum system throughput, takes into account the fairness between the user simultaneously, to guarantee service quality (QoS) requirement of different business stream.Usually adopt RR (round rubin), PF (proportions fair), three kinds of basic dispatching algorithms of MaxC/I in the prior art, these dispatching algorithms are not all considered SNPL (Serving and Neighbour cell Pathloss, service/adjacent sub-district path loss ratio) to the performance impact of HSUPA characteristic, and in fact, if do not consider SNPL, only adopt this three kinds of dispatching algorithms, be difficult to reach under the prerequisite that control is disturbed, obtain bigger throughput.
Summary of the invention
Technical problem to be solved by this invention provides utilizes SNPL information to carry out the method for wireless dispatching in a kind of TDS-CDMA system.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
Wireless dispatching method in a kind of TDS-CDMA system may further comprise the steps:
A: Node B sends to the prioritization module with this information after receiving the SNPL information of each reporting of user;
B: the prioritization module is according to described each user's of SNPL information calculations dispatching priority;
C: Node B is according to the big young pathbreaker user's ordering of dispatching priority, to having the user priority scheduling of high priority.
Wherein, among the step b, if regulation goal is a maximum system throughput, then each user's dispatching priority is directly proportional with separately SNPL.
Wherein, among the step b, if regulation goal is maximum system throughput and takes into account fairness between the user that then each user's dispatching priority is directly proportional with separately SNPL, is inversely proportional to average throughput.
Wherein, described SNPL is the ratio of path loss sum between path loss sum and adjacent cell base station between this cell base station.
The present invention has following beneficial effect:
1) the present invention as the foundation of determining dispatching priority, both can make full use of the information that UE reports with SNPL information, can increase the chance that the user accepts to serve in the sub-district again, reduced the chance that Cell Edge User is accepted service.Suppressed the interference of user so on the one hand to adjacent sub-district, reduced the needed transmitting power of user on the other hand, reduced the constraint that causes by maximum transmission power, thereby can more effectively reach maximum throughput, and then disturb the adjacent area that also greatly reduces each sub-district in the system.
2) simultaneously, because the mandate of HSUPA and user upload E-DCH (E-DCH (Enhanced Dedicated Channel, the enhancing dedicated channel) time-delay between etc., utilize SNPL information to carry out scheduling meeting robust more, the throughput of having been brought when having avoided causing the channel information mistake by channel sudden change descends.
Description of drawings
Fig. 1 is the inventive method flow chart.
Embodiment
Core concept of the present invention is: in the HSUPA system, Node B is utilized each user's of SNPL information acquisition of each reporting of user the characteristic of channel, and then each user is carried out prioritization and scheduling, thereby improves the throughput of system.
SNPL is defined as follows:
Following formula reflected and this cell base station between path loss and and adjacent cell base station between the ratio of path loss sum, so SNPL is big more, represents that the path loss of this sub-district is more little, the path loss of adjacent sub-district is big more, and is promptly the closer to this cell base station, just more little to the interference of adjacent cell base station.
The present invention is described in further detail below in conjunction with accompanying drawing:
The present invention proposes utilize reporting of user in a kind of HSUPA system SNPL information to the method that a plurality of users in the system carry out the prioritization scheduling, see also method flow diagram of the present invention shown in Figure 1, comprising:
Step 101: Node B sends to the prioritization module with this information after receiving the SNPL information of reporting of user;
Step 102: the prioritization module is according to each user's of SNPL information calculations dispatching priority;
In this step, if regulation goal is a maximum system throughput, then Node B can directly utilize each user's SNPL to carry out prioritization; SNPL is big more, and priority is high more, formula as follows, and Prio represents priority, and i represents i user.
Prio
i(t)＝SNPL
i(t)
If regulation goal is taken into account fairness between the user again for increasing throughput of system, Node B is calculated dispatching priority according to following formula to i user, and dispatching priority is directly proportional with SNPL, is inversely proportional to average throughput:
Wherein molecule is i user at t SNPL constantly, and denominator is that i user is at the average throughput of t before the moment.
Step 103: Node B is according to each user's ordering of the big young pathbreaker of dispatching priority, to having the user priority scheduling of high priority.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1, the wireless dispatching method in a kind of TDS-CDMA system is characterized in that, may further comprise the steps:
A: Node B sends to the prioritization module with this information after receiving the service/adjacent sub-district path loss information of each reporting of user;
B: the prioritization module is according to described service/adjacent sub-district each user's of path loss information calculations dispatching priority;
C: Node B is according to the big young pathbreaker user's ordering of dispatching priority, to having the user priority scheduling of high priority.
2, the wireless dispatching method in the TDS-CDMA system as claimed in claim 1 is characterized in that, among the step b, if regulation goal is a maximum system throughput, then each user's dispatching priority is directly proportional with separately service/adjacent sub-district path loss.
3, the wireless dispatching method in the TDS-CDMA system as claimed in claim 1, it is characterized in that, among the step b, if regulation goal is maximum system throughput and takes into account fairness between the user, then each user's dispatching priority is directly proportional, is inversely proportional to average throughput with separately service/adjacent sub-district path loss.
As the wireless dispatching method in the arbitrary described TDS-CDMA system of claim 1 to 3, it is characterized in that 4, described service/adjacent sub-district path loss is the ratio of path loss sum between path loss sum and adjacent cell base station between this cell base station.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100674738A CN101594687A (en) | 2008-05-27 | 2008-05-27 | Wireless dispatching method in the TDS-CDMA system |
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| CNA2008100674738A CN101594687A (en) | 2008-05-27 | 2008-05-27 | Wireless dispatching method in the TDS-CDMA system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102665283A (en) * | 2012-04-13 | 2012-09-12 | 中国科学院上海微系统与信息技术研究所 | Distributed wireless channel allocation and device suitable for smart grids |
| CN103444251A (en) * | 2010-12-22 | 2013-12-11 | 爱立信(中国)通信有限公司 | Coordinated Scheduling for Time Division Duplex Networks |
| WO2014089839A1 (en) * | 2012-12-14 | 2014-06-19 | 华为技术有限公司 | Scheduling method and scheduling device |
| CN106712874A (en) * | 2016-12-30 | 2017-05-24 | 宇龙计算机通信科技(深圳)有限公司 | Wireless spectrum resource management method and device as well as data transmitting end |
-
2008
- 2008-05-27 CN CNA2008100674738A patent/CN101594687A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444251A (en) * | 2010-12-22 | 2013-12-11 | 爱立信(中国)通信有限公司 | Coordinated Scheduling for Time Division Duplex Networks |
| CN103444251B (en) * | 2010-12-22 | 2017-11-03 | 爱立信(中国)通信有限公司 | Coordinated Scheduling for Time Division Duplex Networks |
| CN102665283A (en) * | 2012-04-13 | 2012-09-12 | 中国科学院上海微系统与信息技术研究所 | Distributed wireless channel allocation and device suitable for smart grids |
| WO2014089839A1 (en) * | 2012-12-14 | 2014-06-19 | 华为技术有限公司 | Scheduling method and scheduling device |
| CN106712874A (en) * | 2016-12-30 | 2017-05-24 | 宇龙计算机通信科技(深圳)有限公司 | Wireless spectrum resource management method and device as well as data transmitting end |
| CN106712874B (en) * | 2016-12-30 | 2022-04-19 | 宇龙计算机通信科技(深圳)有限公司 | Management method and management device of wireless spectrum resources and data sending end |
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Open date: 20091202 |