CN103384406A - Dispatching method of relay system - Google Patents
Dispatching method of relay system Download PDFInfo
- Publication number
- CN103384406A CN103384406A CN2012101350516A CN201210135051A CN103384406A CN 103384406 A CN103384406 A CN 103384406A CN 2012101350516 A CN2012101350516 A CN 2012101350516A CN 201210135051 A CN201210135051 A CN 201210135051A CN 103384406 A CN103384406 A CN 103384406A
- Authority
- CN
- China
- Prior art keywords
- scheduling
- needs
- priority
- current
- relaying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a dispatching method of a relay system. According to the method, first, a UE needing preferable dispatching is dispatched in a centralized type dispatching mode, and then remaining resources are utilized to dispatch other UEs in a distribution type dispatching mode. The dispatching method uses two dispatching modes to conduct two stage coordinated dispatching, can exploit the advantages of the two dispatching modes, can reduce signaling overheads between a relay device and a base station, and has a high resource utilization rate.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of dispatching method of relay system.
Background technology
In the middle of the follow-up mobile communication system of 3G, along with the increase of user for the demand of system bandwidth, the frequency range that mobile communication system adopts is had to higher frequency range development, as adopting frequency range that surpasses 3GHz etc., this moment, the reduction of radio wave transmissions distance caused dwindling of base station range; The simultaneously increase of user capacity makes the researcher have to seek the method that can enlarge network capacity on the framework basis of cellular network, and the introducing of relay has caused in the industry more and more concern gradually like this.The introducing of relaying relatively was typically in the middle of the WiMAX system, and IEEE802.16J formulated the standard of junction network since 2006; In the middle of IMT-Advanced, the introducing of clear and definite relaying is an one key character; At present, the formulation of LTE-Advanced standard is completed, and wherein also will introduce relay and overcome coverage that LTE may exist and the defective on capacity.
In existing relay system, aspect scheduling of resource, two kinds of scheduling modes of general existence: a kind of is the scheduling that the subscriber equipment (UE) of trunking and trunking covering is responsible in the base station, be called as the centralized dispatching mode, the mode of this centralized dispatching is carried out the distribution of bandwidth resources by being concentrated by the base station, is conducive to effective utilization of the bandwidth resources in junction network; Another kind is that the scheduling of trunking itself only is responsible in the base station, and the UE that trunking covers completes scheduled transmission by trunking, this mode is called as distributed scheduling, in this distributed scheduling, because the scheduling to UE that relaying covers is completed by relaying, therefore, do not need to carry out continually the mutual of scheduling of resource control signal between relaying and base station.
There is respectively following problem in above-mentioned two kinds of scheduling modes.Particularly, adopt the existing problem of distributed scheduling mode to have:
1) reduced resource utilization: namely after the base station was the relay distribution relay resource, this part resource can not be used when resource is nervous outside relaying, and when the access link resource of relaying was nervous, the resource outside relaying can not be used by relaying.
2) limited the scheduling of resource flexibility: trunking can only be in certain scope of resource dispatched users, limited the flexibility that in multihop cell, resource is distributed,
The problem that adopts the centralized scheduling mode to exist has:
1) Signalling exchange is frequent, and the signaling time delay is difficult to guarantee: because needs pass through the relay forwarding dispatch, so the real-time of the feedback information of schedule information, CQI feedback information and ACK/NACK message is difficult to guarantee.
2) signaling consumption is larger, affects systematic function: when the repeated link resource is comparatively nervous, the transport overhead of dispatch will affect the performance of whole system.
The frequency band that takies along with wireless communication system increases greatly, and the mode of identical networking will become main flow.The base station covering scene will be more complicated.The independent method of distributed resource scheduling and centralized resources scheduling that adopts all can can't obtain the optimal scheduling effect because of above-mentioned deficiency in comparatively complicated covering scene.
At present not yet propose a kind of both had less trunking and the signaling consumption between the base station, the dispatching method that has again higher resource utilization is to adapt to covering scene complicated in practical application.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of dispatching method of relay system, and the method is few to the signaling consumption between trunking and base station, and has higher resource utilization.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of dispatching method of relay system, the method comprises the following steps:
A, each relaying obtain its link information that covers user equipment (UE), determine the current UE that needs priority scheduling, estimate according to described link information described needs priority scheduling the UE needs bandwidth resources and described estimated result is reported the base station;
The described estimated result that b, base station report according to current all relayings, the described UE of priority scheduling that needs is carried out centralized scheduling, utilize the idling-resource that is not used for centralized scheduling, be that each described relay distribution is used for the bandwidth of distributed scheduling, the determined bandwidth information of described centralized scheduling and described bandwidth information for distributed scheduling are notified to corresponding described relaying;
C, described relaying bandwidth information determined according to described centralized scheduling, the described UE of priority scheduling that needs is dispatched, utilize the described bandwidth for distributed scheduling of described base station assigns, the current UE that does not carry out centralized dispatching is carried out distributed scheduling.
In sum, the dispatching method of the relay system that the present invention proposes, first adopt the mode of centralized scheduling to dispatch to the UE that needs priority scheduling, then adopt the mode of distributed scheduling to dispatch for other UE, so by utilizing two kinds of scheduling modes to carry out two stage cooperative schedulings, can bring into play simultaneously the advantage of two kinds of scheduling modes, namely few to the signaling consumption between trunking and base station on the one hand, can have higher resource utilization on the other hand.
Description of drawings
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: minute two stages dispatch, and at first stage, adopt the mode of centralized scheduling, the user who needs priority scheduling is carried out pre-scheduling, at second stage, adopt the mode of distributed scheduling, do not have the user of pre-scheduling to dispatch to other.Like this, on the one hand, can be by the mode of centralized scheduling guarantee to satisfy the demand priority scheduling user's needs, improve resource utilization, on the other hand, can reduce the mutual of scheduling of resource control signal between trunking and base station by a part of UE being adopted the mode of distributed scheduling, thereby can realize the collaborative work of two kinds of source scheduling modes, give full play to the advantage of two kinds of source scheduling modes.
Fig. 1 is the method flow schematic diagram of the embodiment of the present invention one, and as shown in Figure 1, the method mainly comprises:
Here, can determine according to the scheduling strategy of system the UE of current needs priority scheduling, namely according to the UE of certain policy selection class UE as priority scheduling, particularly, can adopt following three kinds of methods to realize:
Method one: can determine according to user's position.Particularly, can the user be divided into central user group and edge customer group according to the position at user place, according to the scheduling strategy of practical application scene and systemic presupposition, with the UE in central user group or edge customer group as the current UE that needs priority scheduling.
Method two: determine according to service priority.Particularly, can be divided into the user according to service priority a plurality of priority level groups such as high-priority users group, low priority user group.According to the UE of the UE in one or more tier group of scheduling strategy adaptive determining of practical application scene and systemic presupposition as current needs priority scheduling.
Method three: determine according to User Priority.Particularly, can be divided into the user according to User Priority a plurality of user gradation groups such as Gold Subscriber group, Silver Subscriber group, Bronze Subscriber.According to the UE of the UE in one or more user gradation groups of scheduling strategy adaptive determining of practical application scene and systemic presupposition as current needs priority scheduling.
Above-mentionedly only list several methods of need preferably determining priority scheduling UE, be not limited in actual applications this, as long as meet the scheduling strategy of system.
In this step, by trunking, the UE that needs priority scheduling is carried out pre-scheduling, can further compress the scheduling control signaling overhead between trunking and base station (DeNB).
The described estimated result that step 102, base station report according to current all relayings, the described UE of priority scheduling that needs is carried out centralized scheduling, utilize the idling-resource that is not used for centralized scheduling, be that each described relay distribution is used for the bandwidth of distributed scheduling, the determined bandwidth information of described centralized scheduling and described bandwidth information for distributed scheduling are notified to corresponding described relaying.
Here, the described estimated result that the base station reports according to current all relayings carries out centralized scheduling to the described UE of priority scheduling that needs, i.e. the mode of base station employing centralized scheduling is to need the UE of priority scheduling to distribute corresponding Un mouth resource.Like this, by a part of UE is adopted centralized scheduling, can utilize centralized scheduling to improve the resource utilization of system, overcome the low problem of simple distributed resource scheduling utilance.
Particularly, in this step, the base station can adopt the modes such as static allocation or dynamic assignment to realize distribution for the bandwidth of distributed scheduling, preferably, can adopt following three kinds of methods:
Method one: static allocation, at RN1, static fixed allocation Un port band width resource between RN2......RNx.That is, described base station utilizes according to the Un port band width resource distribution size of each default described relaying the idling-resource that is not used for centralized scheduling, is used for the bandwidth of distributed scheduling for each described relay distribution.
Method two: dynamic assignment, at RN1, between RN2......RNx, according to the bandwidth application of each relaying, dynamic assignment Un port band width resource.That is, the Un port band width resource size of the current application of described base station relaying according to each is utilized the idling-resource that is not used for centralized scheduling, is used for the bandwidth of distributed scheduling for each described relay distribution.
Method three, described base station utilize according to the priority of UE that each described relaying covers and the Un port band width resource size of the current application of each described relaying the idling-resource that is not used for centralized scheduling, are used for the bandwidth of distributed scheduling for each described relay distribution.Can be specifically: according to the different user that RN covers, centering be gone on to go and is divided into groups, and different groupings gives different business weights, and for example, the top-tier customer grouping gives the highest business weight, and limit priority is set.When dispatch the base station, preferentially guarantee the Un port band width of schedules high priority relaying, in the situation that satisfy the high priority bandwidth, then according to the Un port band width application of different relayings, fairness policy distributes the remaining Un bandwidth resources of eating dishes without rice or wine in proportion.
In this step, by a part of UE is adopted distributed scheduling, can reduce the mutual of scheduling control signaling between trunking and DeNB, reduce the scheduling controlling expense, reduce simultaneously the scheduling control information interaction time delay, overcome simple set Chinese style scheduling of resource time delay and be difficult to guarantee, the mutual frequent and large problem of signaling consumption of scheduling control signaling.
Here, the concrete grammar that relaying is dispatched the described UE that needs priority scheduling, and the current UE that does not carry out centralized dispatching is carried out distributed scheduling.Same existing system does not repeat them here.
Preferably, accuracy, the distribution of optimizing resource, the raising resource utilization of dispatching in order to strengthen the present invention, before the UE that needs priority scheduling is dispatched, the relaying first state current according to UE determines whether the link information of current UE changes, if change, need to reschedule according to current new link information the inaccuracy that causes to overcome centralized scheduling.To achieve these goals, the bandwidth information determined according to described centralized scheduling of relaying described in this step also will further comprise before the described UE that needs priority scheduling is dispatched:
If described relaying is current to be monitored the described Radio Link of the UE of priority scheduling that needs and occured change and reach default modulating-coding speed conversion condition or switched to other residential quarters, described relaying utilizes the bandwidth of current described base station assigns again this UE to be dispatched.
Here, relaying is being judged need to reschedule the time, utilize the bandwidth of current described base station assigns again this UE to be rescheduled, the concrete mode that reschedules can flexible choice, can be to utilize the centralized resources that distributes to dispatch, also can utilize the distributed resource that distributes to dispatch.
Can find out from technique scheme, the present invention is by taking to utilize centralized scheduling and distributed scheduling in the mode of two stage cooperative schedulings, can give full play to the advantage of two kinds of scheduling modes, realize good and bad complementary, improve the flexibility of scheduling, thereby more can be adapted to covering scene complicated in practical application.
In sum, these are only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. the dispatching method of a relay system, is characterized in that, the method comprises the following steps:
A, each relaying obtain its link information that covers user equipment (UE), determine the current UE that needs priority scheduling, estimate according to described link information described needs priority scheduling the UE needs bandwidth resources and described estimated result is reported the base station;
The described estimated result that b, base station report according to current all relayings, the described UE of priority scheduling that needs is carried out centralized scheduling, utilize the idling-resource that is not used for centralized scheduling, be that each described relay distribution is used for the bandwidth of distributed scheduling, the determined bandwidth information of described centralized scheduling and described bandwidth information for distributed scheduling are notified to corresponding described relaying;
C, described relaying bandwidth information determined according to described centralized scheduling, the described UE of priority scheduling that needs is dispatched, utilize the described bandwidth for distributed scheduling of described base station assigns, the current UE that does not carry out centralized dispatching is carried out distributed scheduling.
2. method according to claim 1, it is characterized in that, base station described in step b utilizes according to the Un port band width resource distribution size of each default described relaying the idling-resource that is not used for centralized scheduling, is used for the bandwidth of distributed scheduling for each described relay distribution.
3. method according to claim 1, it is characterized in that, the Un port band width resource size of the current application of the relaying according to each of base station described in step b is utilized the idling-resource that is not used for centralized scheduling, is used for the bandwidth of distributed scheduling for each described relay distribution.
4. method according to claim 1, it is characterized in that, base station described in step b is according to the priority of UE that each described relaying covers and the Un port band width resource size of the current application of each described relaying, utilize the idling-resource that is not used for centralized scheduling, be used for the bandwidth of distributed scheduling for each described relay distribution.
5. method according to claim 1, is characterized in that, the bandwidth information determined according to described centralized scheduling of relaying described in step c further comprises before the described UE that needs priority scheduling is dispatched:
If described relaying is current to be monitored the described Radio Link of the UE of priority scheduling that needs and occured change and reach default modulating-coding speed conversion condition or switched to other residential quarters, described relaying utilizes the bandwidth of current described base station assigns again this UE to be dispatched.
6. method according to claim 1, is characterized in that, described definite current UE of priority scheduling that needs is:
Scheduling strategy according to default with central user or the edge customer of residential quarter, is defined as the current UE that needs priority scheduling.
7. method according to claim 1, is characterized in that, described definite current UE of priority scheduling that needs is:
According to default scheduling strategy, according to the service priority of UE, determine the current UE that needs priority scheduling.
8. method according to claim 1, is characterized in that, described definite current UE of priority scheduling that needs is:
According to default scheduling strategy, according to the User Priority of UE, determine the current UE that needs priority scheduling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135051.6A CN103384406B (en) | 2012-05-03 | 2012-05-03 | A kind of dispatching method of relay system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135051.6A CN103384406B (en) | 2012-05-03 | 2012-05-03 | A kind of dispatching method of relay system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103384406A true CN103384406A (en) | 2013-11-06 |
| CN103384406B CN103384406B (en) | 2016-05-11 |
Family
ID=49492080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210135051.6A Expired - Fee Related CN103384406B (en) | 2012-05-03 | 2012-05-03 | A kind of dispatching method of relay system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103384406B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017113296A1 (en) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | Data transmission method and apparatus |
| WO2017167236A1 (en) * | 2016-03-31 | 2017-10-05 | 华为技术有限公司 | Resource allocation method and network device |
| CN107432025A (en) * | 2015-03-25 | 2017-12-01 | 索尼移动通讯有限公司 | Scheduling in cellular network |
| CN108923848A (en) * | 2018-06-22 | 2018-11-30 | 武汉光迅科技股份有限公司 | The site selecting method of monitoring station, for the device of monitoring station addressing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420791A (en) * | 2008-11-26 | 2009-04-29 | 北京邮电大学 | Resource scheduling method for link between base station and relay station |
| EP2101528A1 (en) * | 2008-03-14 | 2009-09-16 | Intel Corporation | System, method and apparatus for interference mitigation in a relay-based wireless network |
| CN101820680A (en) * | 2009-02-26 | 2010-09-01 | 普天信息技术研究院有限公司 | Dispatching method in relay network |
| WO2010121725A1 (en) * | 2009-04-23 | 2010-10-28 | Alcatel Lucent | Relaying data between a base station and user equipment |
| WO2011007388A1 (en) * | 2009-07-15 | 2011-01-20 | 富士通株式会社 | Radio communication system, base station device, terminal device, relay station device, and radio communication method in radio communication system |
-
2012
- 2012-05-03 CN CN201210135051.6A patent/CN103384406B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2101528A1 (en) * | 2008-03-14 | 2009-09-16 | Intel Corporation | System, method and apparatus for interference mitigation in a relay-based wireless network |
| CN101420791A (en) * | 2008-11-26 | 2009-04-29 | 北京邮电大学 | Resource scheduling method for link between base station and relay station |
| CN101820680A (en) * | 2009-02-26 | 2010-09-01 | 普天信息技术研究院有限公司 | Dispatching method in relay network |
| WO2010121725A1 (en) * | 2009-04-23 | 2010-10-28 | Alcatel Lucent | Relaying data between a base station and user equipment |
| WO2011007388A1 (en) * | 2009-07-15 | 2011-01-20 | 富士通株式会社 | Radio communication system, base station device, terminal device, relay station device, and radio communication method in radio communication system |
Non-Patent Citations (1)
| Title |
|---|
| 吴彤: "下一代无线中继系统中的多维资源联合优化策略", 《中国博士学位论文全文数据库》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107432025A (en) * | 2015-03-25 | 2017-12-01 | 索尼移动通讯有限公司 | Scheduling in cellular network |
| CN107432025B (en) * | 2015-03-25 | 2021-09-17 | 索尼集团公司 | Node and execution method thereof, relay node and execution method thereof |
| WO2017113296A1 (en) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | Data transmission method and apparatus |
| US10674523B2 (en) | 2015-12-31 | 2020-06-02 | Huawei Technologies Co., Ltd. | Centralized scheduling in a data communication |
| WO2017167236A1 (en) * | 2016-03-31 | 2017-10-05 | 华为技术有限公司 | Resource allocation method and network device |
| CN108923848A (en) * | 2018-06-22 | 2018-11-30 | 武汉光迅科技股份有限公司 | The site selecting method of monitoring station, for the device of monitoring station addressing |
| US11159232B2 (en) | 2018-06-22 | 2021-10-26 | Accelink Technologies Co., Ltd. | Method of site selection for monitoring station, and device for site selection for monitoring station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103384406B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102098737B (en) | Cell priority level based cooperation scheduling method and system | |
| CN102638872B (en) | Relay selection method based on load balancing in cooperation relay network | |
| CN101043638B (en) | Base station dispatcher, resource distribution module and dispatch control method for HSUPA | |
| CN102655677A (en) | Mobile communication system and far-end radio frequency unit clustering method thereof | |
| CN103067985B (en) | The binding of ultrahigh speed wireless lan channel and distribution method based on channel quality | |
| CN108401302A (en) | A kind of resource regulating method, apparatus and system | |
| CN102781109B (en) | Wireless network configuration method, device and system | |
| CN101925185B (en) | Interference suppression method of relay cellular network, base station and network system | |
| CN103024921A (en) | Scheduling method based on CQI (channel quality indicator) feedback parameter and SINR (signal to interference plus noise ratio) numerical grouping | |
| CN101998522B (en) | Buffer state information report processing method and relay node | |
| CN103384406B (en) | A kind of dispatching method of relay system | |
| CN102264123B (en) | Method and device for distributing PDSCH (physical downlink shared channel) power | |
| CN101795481A (en) | Method for accessing client to service cell in long term evolution advanced system | |
| CN101494908B (en) | Method for scheduling customer equipment data and packet scheduling device | |
| CN102256214B (en) | Dynamic channel allocation method for comprehensive services and transmission characteristics of CDMA (Code Division Multiple Access) cluster system | |
| CN101820680B (en) | Dispatching method in relay network | |
| CN104105208A (en) | Same-frequency full duplex scheduling method and device | |
| CN109257824A (en) | Resource regulating method based on TD-LTE self-organizing network | |
| CN102396258A (en) | Method and network device for managing resource allocation | |
| Ismail et al. | Green Heterogeneous Wireless Networks | |
| CN103096471A (en) | Notification method and system for forming carrier wave resource information | |
| CN103220789B (en) | Resource allocation methods, user scheduling method and device thereof, equipment | |
| CN101883363B (en) | Resource allocation method, device and system | |
| CN103220790B (en) | The distribution method and device of control channel resource | |
| CN102045788B (en) | Downlink scheduling method, relay node and donor eNB (DeNB) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |