CN105682242A - Network resource scheduling method, device, system and network node - Google Patents
Network resource scheduling method, device, system and network node Download PDFInfo
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- CN105682242A CN105682242A CN201610126055.6A CN201610126055A CN105682242A CN 105682242 A CN105682242 A CN 105682242A CN 201610126055 A CN201610126055 A CN 201610126055A CN 105682242 A CN105682242 A CN 105682242A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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Abstract
The invention discloses a network resource scheduling method, device, system and a network node. The network resource scheduling method includes the steps that a sending node sends a resource request to a main node when there is a business sending demand; the sending node receives a resource pool distributed by the main node according to the resource request, wherein the resource pool includes time-frequency resources; the sending node distributes the resources to a receiving node from the resource pool and sends the business to the receiving node by using the distributed resources. Through the above mode, the utilization rate of the network resources is improved, and the network capacity is increased.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of network resource scheduling method, equipment, system and network node.
Background technology
Wireless Mesh netword (WirelessMeshNetworks, WMNs), also known as wireless mesh network, form by host node with from node (including sending node and receiving node from node), may also be and be made up of router (meshrouters) and client (meshclients), or by Mesh base station (meshbasestation, and Mesh movement station (meshmobilestation MBS), MMS) composition, wherein router constitutes backbone network, and be connected with wired internet net, being responsible for client provides the wireless internet of multi-hop to connect. wireless Mesh netword is also referred to as " multi-hop (multi-hop) " network, and it is a kind of and the diverse new wireless networks technology of conventional wireless network, is a kind of low cost, high performance network architecture.
In the network operation, it is necessary to Internet resources are scheduling distribution, in the prior art, generally adopting centralized dispatching method, centralized scheduling is a kind of method conventional in wireless Mesh netword. Centralized scheduling is usually all, from node, resource request is reported host node, and available resources are distributed to each from node according to certain algorithm by host node, specify the transmission parameter of each node simultaneously.
Prior art disadvantageously, host node needs to safeguard the substantial amounts of information of the whole network, and when network size is excessive, host node load is big, it is easy to become network bottleneck; Simultaneously each node report oneself information needed for signaling consumption also bigger; And once host node cisco unity malfunction, the time of network recovery is also long.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of network resource scheduling method, equipment, system and network node, it is possible to subtract the utilization rate improving Internet resources, increases network capacity.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: providing a kind of network resource scheduling method, the method includes: sending node, when there being business to send demand, sends resource request to host node; Sending node receives the resource pool that host node distributes according to resource request; Wherein, resource pool includes time-frequency resources; Sending node is receiving node Resources allocation from resource pool, to utilize the resource of distribution to send business to receiving node.
Wherein, the method also includes: the channel quality between resource pool, the resource request information of receiving node and sending node and receiving node that sending node distributes according to host node, it is determined that the transmission parameter of business; Wherein, send parameter and include the running time-frequency resource of business, at least one in modulation coding mode, MIMO mode and power allocation information. Wherein, sending node is receiving node Resources allocation from resource pool, to utilize the resource of distribution to send business to receiving node, specifically include: sending node is receiving node Resources allocation according to business demand from resource pool, to utilize the resource of distribution to send business to receiving node.
Wherein, the method also includes: when multiple receiving nodes are had business transmission demand by sending node, sending node is according to preset schedule algorithm, it is determined that the scheduling relation between the resource distribute multiple receiving nodes.
Wherein, resource request includes the buffer status information of sending node.
For solving above-mentioned technical problem, another technical solution used in the present invention is: providing a kind of network node, network node is sending node, for network resource scheduling, this network node includes: sending module, for when there being business to send demand, sending resource request to host node; Receiver module, for receiving the resource pool that host node distributes according to resource request; Wherein, resource pool includes time-frequency resources; Processing module, for being receiving node Resources allocation, to utilize the resource of distribution to send business to receiving node from resource pool.
Wherein, processing module be additionally operable to according to host node distribution resource pool, receiving node resource request information and sending node and receiving node between channel quality, it is determined that the transmission parameter of business; Wherein, send parameter and include the running time-frequency resource of business, at least one in modulation coding mode, MIMO mode and power allocation information.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide a kind of network node, network node is host node, for network resource scheduling, this network node includes: receiver module, for receiving sending node when there being business to send demand, to the resource request that host node sends; Processing module, being used for according to resource request is sending node Resources allocation pond; Wherein, resource pool at least includes time-frequency resources.
For solving above-mentioned technical problem, another technical solution used in the present invention is: providing a kind of network resource scheduling system, this system includes host node, sending node and receiving node; Wherein, sending node is described above network node, and host node is described above network node.
For solving above-mentioned technical problem, another technical solution used in the present invention is: providing a kind of network resource scheduling equipment, this equipment includes processor, memorizer, input equipment and output device; Output device is for when there being business to send demand, sending resource request to host node; Input equipment is for receiving the resource pool that host node distributes according to resource request; Wherein, resource pool includes time-frequency resources; Processor for being receiving node Resources allocation from resource pool, to utilize the resource of distribution to send business to receiving node.
The invention has the beneficial effects as follows: be different from the situation of prior art, in the present invention, sending node is when there being business to send demand, sends resource request to host node; Sending node receives the resource pool that host node distributes according to resource request; Sending node is receiving node Resources allocation from resource pool, to utilize the resource of distribution to send business to receiving node. By the way, the sending node of the present invention replaces the business that host node sends as required that resource is specifically distributed, share the work of host node, alleviate the burden of host node, simultaneously, solve network performance to depend on host node unduly and cause the problem of network bottleneck, improve the performance of network, add network capacity.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of inventive network resource regulating method the first embodiment;
Fig. 2 is the schematic flow sheet of inventive network resource regulating method the second embodiment;
Fig. 3 is the signal flow diagram of inventive network resource regulating method the second embodiment one specific embodiment;
Fig. 4 is the schematic network structure of inventive network resource regulating method the second embodiment one specific embodiment;
Fig. 5 is the structural representation of inventive network node the first embodiment;
Fig. 6 is the structural representation of inventive network node the second embodiment;
Fig. 7 is the structural representation of inventive network scheduling of resource equipment the first embodiment;
Fig. 8 is the structural representation of inventive network scheduling of resource equipment the second embodiment;
Fig. 9 is the structural representation of inventive network resource scheduling system one embodiment.
Detailed description of the invention
Consulting Fig. 1, the schematic flow sheet of inventive network resource regulating method the first embodiment, the method includes:
Step S11: sending node, when there being business to send demand, sends resource request to host node.
Network node refer to a computer or other equipment and one have absolute address and there is the network transmitting or receiving data function be connected. Node can be work station, client, the network user or personal computer, it is also possible to is the equipment of server, printer and the connection of other networks. Each workstation servers, terminal unit, the equipment namely having oneself unique network address is all network node. Whole network is made up of this various network node, many network node communication lines is coupled together, forms certain geometrical relationship, to form network topology.
Wherein, host node can be base station (BS), server, router etc., can be mobile base station (MS), server, terminal etc. from node. Specifically, including sending node and receiving node from node, when having business demand between sending node and receiving node, sending node sends business to receiving node. Certainly, one from node in different situations, both can be sending node, it is also possible to be receiving node, it is also possible to while the sending node as a business, as the receiving node of another business. Business is primarily referred to as between node and node data, signal transmission, for instance voice, visual telephone, and file sends, downloads, access of webpage etc.
Resource request mainly includes the number of the resource required for sending node, and this is mainly relevant with the business carried out required for sending node.
Optionally, in one embodiment, resource request mainly includes the buffer status information of sending node. When needing to carry out business contact between sending node and receiving node, this business can first wait in the relief area of sending node, when host node is assigned to resource, then carries out business transmission; When having multiple service needed to carry out simultaneously, multiple business all can in relief area. Therefore, the status information of relief area can directly embody the resource request of sending node. So, resource request includes the buffer status information of sending node.
Optionally, in other embodiments, this resource request can also include the channel quality information between sending node and receiving node, when channel quality is good, host node can be sending node Resources allocation according to normal demand, when resource anxiety, it is also possible to less for sending node Resources allocation; When bad channel quality, what host node can be more is sending node Resources allocation.
Step S12: sending node receives the resource pool that host node distributes according to resource request; Wherein, resource pool includes time-frequency resources.
Resource mainly includes time-frequency resources, i.e. Physical Resource Block (PRB), what one Physical Resource Block was corresponding is on frequency domain 12 continuous print carrier waves (when 15K intercarrier every be 180K), it time domain is the resource of a time slot (half subframe, 0.5ms).
Resource pool, the i.e. set of Resource Block, for instance include the time-frequency resources block of at least one.
More than may be considered the distribution of first order resource.
Hereinafter it is then second level resource distribution:
Step S13: sending node is receiving node Resources allocation from resource pool, to utilize the resource of distribution to send business to receiving node.
Here when " for receiving node Resources allocation " refers to sending node to send business from multiple different receiving nodes or sending multiple different business with same receiving node, the resource distributed for each business.
Optionally, owing to resource distribution in the second level is according to the business to send, therefore, S13 is it may also is that sending node is receiving node Resources allocation according to business demand from resource pool, to utilize the resource of distribution to send business to receiving node.
Such as, sending node needs to send a business to receiving node A, simultaneously need to send b business to receiving node B, a business and b business are concurrently present in the relief area of sending node. Sending node sends resource request to host node, and gets resource pool from host node, completes the distribution of first order resource. Here resource pool is the set of multiple Resource Block, and resource pool is not carried out traffic assignments by host node. This resource pool is carried out second level resource distribution further according to a business and b business by sending node, to utilize the resource distributing to a business and b business to send business a to receiving node A, sends business b to receiving node B.
Being different from prior art, in present embodiment, sending node, when there being business to send demand, sends resource request to host node; Sending node receives the resource pool that host node distributes according to resource request; Sending node is receiving node Resources allocation from resource pool, to utilize the resource of distribution to send business to receiving node. By the way, the sending node of present embodiment replaces the business that host node sends as required that resource is specifically distributed, share the work of host node, alleviate the burden of host node, simultaneously, solve network performance to depend on host node unduly and cause the problem of network bottleneck, improve the performance of network, add network capacity.
Optionally, consulting Fig. 2, the schematic flow sheet of inventive network resource regulating method the second embodiment, in this second embodiment, the method can also include:
S21: the channel quality between resource pool, the resource request information of receiving node and sending node and receiving node that sending node distributes according to host node, it is determined that the transmission parameter of business; Wherein, send parameter and include the running time-frequency resource of business, at least one in modulation coding mode, MIMO (Multiple-InputMultiple-Out-put, multiple-input and multiple-output) pattern and power allocation information.
The resource request information of receiving node refers to the buffer status information of receiving node.
Here according to host node distribution resource pool, receiving node resource request information and sending node and receiving node between channel quality, determine the method that the transmission parameter of business is referred in prior art host node and determines the transmission parameter of business, repeat no more here.
S22: when multiple receiving nodes are had business transmission demand by sending node, sending node is according to preset schedule algorithm, it is determined that the scheduling relation between the resource distribute multiple receiving nodes.
Owing to when the network operation, sending node may send business to multiple receiving nodes simultaneously, it is therefore desirable to resource pool is scheduling meeting the demand of multiple business simultaneously, therefore can according to the resource between the default multiple receiving node of algorithmic dispatching.
Here according to host node distribution resource pool, receiving node resource request information and sending node and receiving node between channel quality, determine the transmission parameter of business, and when multiple receiving nodes are had business transmission demand, sending node is according to preset schedule algorithm, determine the scheduling relation between the resource distribute multiple receiving nodes, all it is referred in prior art the way of host node, repeats no more here. It should be noted that S21 and S22 it is not absolutely required to perform sequentially in time, for instance, it is possible to first carry out S22, then perform S21, it addition, S21 and S22 can also carry out simultaneously. Further, since the second embodiment is on the first embodiment basis, therefore, S21 and S22 can be after the S13 of the first embodiment, it is also possible to carry out with S13 simultaneously.
Consult Fig. 3, the signal flow diagram of inventive network resource regulating method the second embodiment one specific embodiment, and Fig. 4, the schematic network structure of inventive network resource regulating method the second embodiment one specific embodiment, below with a specific embodiment, present embodiment is described in detail:
User requires over terminal 32 and sends file C to terminal 331 simultaneously, by sending file D to terminal 332, generates file and sends state, and cushion in the relief area of terminal 32. The buffer state of oneself is sent to the webserver 31 by terminal 32, so that the webserver 31 Resources allocation.
Now, the webserver 31 distributes to terminal 32 1 resource pool, wherein, the webserver 31 not to the concrete distribution condition of this resource pool as requiring, be the equal of given terminal 32 by the right of distribution of a bulk of resource.
After terminal 32 obtains resource pool (distribution authority), further according to the resource pool of the webserver 31 distribution, the resource request information of terminal 332 and the terminal 32 channel quality respectively and between terminal 331 and terminal 332, it is determined that the transmission parameter of business; Wherein, send parameter and include the running time-frequency resource of business, at least one in modulation coding mode, MIMO (Multiple-InputMultiple-Out-put, multiple-input and multiple-output) pattern and power allocation information.
Consulting Fig. 5, the structural representation of inventive network node the first embodiment, this network node is sending node, and for network resource scheduling, this network node includes:
Sending module 51, for when there being business to send demand, sending resource request to host node.
Receiver module 52, for receiving the resource pool that host node distributes according to resource request; Wherein, resource pool includes time-frequency resources.
Processing module 53, for being receiving node Resources allocation, to utilize the resource of distribution to send business to receiving node from resource pool.
Optionally, in other embodiments, processing module 53 be additionally operable to according to host node distribution resource pool, receiving node resource request information and sending node and receiving node between channel quality, it is determined that the transmission parameter of business; Wherein, send parameter and include the running time-frequency resource of business, at least one in modulation coding mode, MIMO mode and power allocation information.
Optionally, in other embodiments, it is receiving node Resources allocation that processing module 53 is additionally operable to according to business demand from resource pool, to utilize the resource of distribution to send business to receiving node.
Optionally, in other embodiments, processing module 53 is additionally operable to when multiple receiving nodes having business and sending demand, and sending node is according to preset schedule algorithm, it is determined that the scheduling relation between the resource distribute multiple receiving nodes.
Consulting Fig. 6, the structural representation of inventive network node the second embodiment, this network node is host node, and for network resource scheduling, this network node includes:
Receiver module 61, is used for receiving sending node when there being business to send demand, to the resource request that host node sends.
Processing module 62, being used for according to resource request is sending node Resources allocation pond; Wherein, resource pool at least includes time-frequency resources.
Optionally, in other embodiments, host node also includes sending module 63, and sending module 63 for, after carrying out resource distribution, being broadcast to all nodes by resource allocation result.
Consult Fig. 7, the structural representation of inventive network scheduling of resource equipment the first embodiment, sending node in the corresponding above-mentioned embodiment of this equipment, it is possible to being server, mobile base station or terminal, this equipment 70 includes processor 71, memorizer 72, receptor 73 and transmitter 74.
Transmitter 74 is for when there being business to send demand, sending resource request to host node. Here host node can be base station or server.
Receptor 73 is for receiving the resource pool that host node distributes according to resource request; Wherein, resource pool includes time-frequency resources.
Memorizer 72 is for storing the historical record etc. of some system files, algorithm, program or resource distribution.
Processor 71 for being receiving node Resources allocation from resource pool, to utilize the resource of distribution to send business to receiving node. Here receiving node can be server, mobile base station or terminal.
Optionally, in other embodiments, processor 71 be additionally operable to according to host node distribution resource pool, receiving node resource request information and sending node and receiving node between channel quality, it is determined that the transmission parameter of business; Wherein, send parameter and include the running time-frequency resource of business, at least one in modulation coding mode, MIMO mode and power allocation information.
Optionally, in other embodiments, it is receiving node Resources allocation that processor 71 is additionally operable to according to business demand from resource pool, to utilize the resource of distribution to send business to receiving node.
Optionally, in other embodiments, processor 71 is additionally operable to when multiple receiving nodes having business and sending demand, and sending node is according to preset schedule algorithm, it is determined that the scheduling relation between the resource distribute multiple receiving nodes.
Consult Fig. 8, the structural representation of inventive network scheduling of resource equipment the second embodiment, host node in the corresponding above-mentioned embodiment of this equipment, it is possible to being base station or server, this equipment 80 includes processor 81, memorizer 82, receptor 83 and transmitter 84.
Receptor 83 is used for receiving sending node when there being business to send demand, to the resource request that host node sends. Here sending node can be server, mobile base station or terminal.
Processor 81 is used for according to resource request being sending node Resources allocation pond; Wherein, resource pool at least includes time-frequency resources.
Optionally, in other embodiments, this equipment also includes transmitter 84, and transmitter 84 for, after carrying out resource distribution, being broadcast to all nodes, i.e. all of base station, server and terminal by resource allocation result.
In several embodiments provided by the present invention, it should be understood that disclosed method and equipment, it is possible to realize by another way. Such as, equipment embodiment described above is merely schematic, such as, the division of described module or unit, being only a kind of logic function to divide, actual can have other dividing mode when realizing, for instance multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some features can ignore, or do not perform.
The described unit illustrated as separating component can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE. Some or all of unit therein can be selected according to the actual needs to realize the purpose of present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a unit. Above-mentioned integrated unit both can adopt the form of hardware to realize, it would however also be possible to employ the form of SFU software functional unit realizes.
If the integrated unit in other embodiments above-mentioned is using the form realization of SFU software functional unit and as independent production marketing or use, it is possible to be stored in a computer read/write memory medium. Based on such understanding, part or all or part of of this technical scheme that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform all or part of step of method described in each embodiment of the present invention. And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-OnlyMemory), the various media that can store program code such as random access memory (RAM, RandomAccessMemory), magnetic disc or CD.
Consulting Fig. 9, the structural representation of inventive network resource scheduling system one embodiment, this system includes host node 91, sending node 92 and receiving node 93; Wherein, sending node 92 is the network node as described in upper network node the first embodiment, and host node 91 is the network node as described in upper network node the second embodiment.
It addition, in other embodiments, the sending node 92 in this network resource scheduling system can be the as above equipment in network resource scheduling equipment the first embodiment, and host node 91 can be the as above equipment in network resource scheduling equipment the second embodiment.
Be based on the embodiment of above-mentioned network resource scheduling method, equipment and network node with the embodiment of upper network node and network resource scheduling system, its principle is similar with embodiment, repeats no more here.
It should be understood that in each embodiment above, each node or each server and terminal can exchange. Such as in the embodiment of network node, first order resource distribution can be carried out from node, and host node carries out second level resource distribution; Or in the embodiment of equipment, terminal can carry out first order resource distribution, and server carries out second level resource distribution. In other words, in complicated network node, each node can be host node or from node, in the various network equipments, any one equipment also can serve as server or terminal.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. a network resource scheduling method, it is characterised in that including:
Sending node, when there being business to send demand, sends resource request to host node;
Described sending node receives the resource pool that described host node distributes according to described resource request; Wherein, described resource pool includes time-frequency resources;
Described sending node is receiving node Resources allocation from described resource pool, to utilize the resource of described distribution to send business to described receiving node.
2. method according to claim 1, it is characterised in that described method also includes:
Channel quality between resource pool, the resource request information of described receiving node and described sending node and described receiving node that described sending node distributes according to described host node, it is determined that the transmission parameter of described business;
Wherein, described transmission parameter includes at least one in the time-frequency resources of business, modulation coding mode, MIMO mode and power allocation information.
3. method according to claim 1, it is characterised in that described sending node is receiving node Resources allocation from described resource pool, to utilize the resource of described distribution to send business to described receiving node, specifically includes:
Described sending node is receiving node Resources allocation according to described business demand from described resource pool, to utilize the resource of described distribution to send business to described receiving node.
4. method according to claim 1, it is characterised in that described method also includes:
When multiple receiving nodes are had business transmission demand by described sending node, described sending node is according to preset schedule algorithm, it is determined that the scheduling relation between the resource distribute the plurality of receiving node.
5. method according to claim 1, it is characterised in that described resource request includes the buffer status information of described sending node.
6. a network node, described network node is sending node, for network resource scheduling, it is characterised in that including:
Sending module, for when there being business to send demand, sending resource request to host node;
Receiver module, for receiving the resource pool that described host node distributes according to described resource request; Wherein, described resource pool includes time-frequency resources;
Processing module, for being receiving node Resources allocation, to utilize the resource of described distribution to send business to described receiving node from described resource pool.
7. network node according to claim 6, it is characterised in that
Described processing module is additionally operable to the channel quality between resource request information and described sending node and the described receiving node of the resource pool distributed according to described host node, described receiving node, it is determined that the transmission parameter of described business;
Wherein, described transmission parameter includes at least one in the time-frequency resources of business, modulation coding mode, MIMO mode and power allocation information.
8. a network node, described network node is host node, for network resource scheduling, it is characterised in that including:
Receiver module, is used for receiving sending node when there being business to send demand, to the resource request that host node sends;
Processing module, being used for according to described resource request is described sending node Resources allocation pond; Wherein, described resource pool at least includes time-frequency resources.
9. a network resource scheduling system, it is characterised in that include host node, sending node and receiving node;
Wherein, described sending node is the network node as described in any one of claim 6-7, and described host node is network node as claimed in claim 8.
10. a network resource scheduling equipment, it is characterised in that include processor, memorizer, input equipment and output device;
Described output device is for when there being business to send demand, sending resource request to host node;
Described input equipment is for receiving the resource pool that described host node distributes according to described resource request; Wherein, described resource pool includes time-frequency resources;
Described processor for being receiving node Resources allocation from described resource pool, to utilize the resource of described distribution to send business to described receiving node.
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| CN201610126055.6A CN105682242A (en) | 2016-03-04 | 2016-03-04 | Network resource scheduling method, device, system and network node |
| PCT/CN2017/075791 WO2017148446A1 (en) | 2016-03-04 | 2017-03-06 | Network resource scheduling method, device and system, and network node |
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| WO2018053720A1 (en) * | 2016-09-21 | 2018-03-29 | 广东欧珀移动通信有限公司 | Signal transmission method and apparatus |
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