WO2017148446A1 - 一种网络资源调度方法、设备、系统以及网络节点 - Google Patents

一种网络资源调度方法、设备、系统以及网络节点 Download PDF

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Publication number
WO2017148446A1
WO2017148446A1 PCT/CN2017/075791 CN2017075791W WO2017148446A1 WO 2017148446 A1 WO2017148446 A1 WO 2017148446A1 CN 2017075791 W CN2017075791 W CN 2017075791W WO 2017148446 A1 WO2017148446 A1 WO 2017148446A1
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Prior art keywords
node
resource
sending
network
service
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PCT/CN2017/075791
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English (en)
French (fr)
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鲁志兵
张庆利
余庆祥
沈谦
胡军
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海能达通信股份有限公司
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Publication of WO2017148446A1 publication Critical patent/WO2017148446A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a network resource scheduling method, device, system, and network node.
  • Wireless Mesh Networks also known as wireless mesh networks, consist of a master node and a slave node (a slave node including a transmitting node and a receiving node), or by a router (mesh routers) and a client (
  • the mesh clients are composed of a mesh base station (MBS) and a mesh mobile station (MMS), wherein the router constitutes a backbone network and is connected to a wired internet network, and is responsible for providing more clients. Jump the wireless internet connection.
  • Wireless Mesh network also known as "multi-hop” network, is a new wireless network technology that is completely different from traditional wireless networks. It is a low-cost, high-performance network architecture.
  • a centralized scheduling method is generally adopted, and centralized scheduling is a commonly used method in wireless Mesh networks.
  • Centralized scheduling is usually that all slave nodes report resource requests to the master node.
  • the master node allocates available resources to each slave node according to a certain algorithm, and specifies the sending parameters of each node.
  • the disadvantage of the prior art is that the primary node needs to maintain a large amount of information on the entire network.
  • the primary node has a large load and is likely to become a network bottleneck.
  • the signaling overhead required for each node to report its own information is also large. And once the primary node is not working properly, the network recovery time is longer.
  • the technical problem to be solved by the present invention is to provide a network resource scheduling method, device, system, and network node, which can reduce the utilization of network resources and increase network capacity.
  • a technical solution adopted by the present invention is to provide a network resource scheduling method, which includes: when a sending node sends a resource to a primary node when a service needs to be sent, The sending node receives the resource pool allocated by the primary node according to the resource request; wherein the resource pool includes a time-frequency resource; the sending node allocates resources from the resource pool to the receiving node to send the service to the receiving node by using the allocated resource.
  • the method further includes: the sending node determines, according to the resource pool allocated by the primary node, the resource request information of the receiving node, and the channel quality between the sending node and the receiving node, where the sending parameter includes the time frequency of the service. At least one of a resource, a modulation coding mode, a MIMO mode, and power allocation information.
  • the sending node allocates resources to the receiving node from the resource pool to send the service to the receiving node by using the allocated resource, and specifically includes: the sending node allocates resources from the resource pool to the receiving node according to the service requirement, and uses the allocated resource to receive the resource.
  • the node sends the service.
  • the method further includes: when the sending node has a service sending requirement for the multiple receiving nodes, the sending node determines, according to the preset scheduling algorithm, a scheduling relationship between resources allocated to the multiple receiving nodes.
  • the resource request includes buffer status information of the sending node.
  • another technical solution adopted by the present invention is to provide a network node, where the network node is a sending node, and is used for network resource scheduling, and the network node includes: a sending module, when used to send a service request
  • the receiving module is configured to receive a resource pool allocated by the primary node according to the resource request, where the resource pool includes a time-frequency resource
  • the processing module is configured to allocate resources to the receiving node from the resource pool, The allocated resources are used to send traffic to the receiving node.
  • the processing module is further configured to determine a sending parameter of the service according to the resource pool allocated by the primary node, the resource request information of the receiving node, and the channel quality between the sending node and the receiving node, where the sending parameter includes a time-frequency resource of the service, At least one of a modulation coding mode, a MIMO mode, and power allocation information.
  • another technical solution adopted by the present invention is to provide a network node, where the network node is a master node, and is used for network resource scheduling, and the network node includes: a receiving module, configured to receive a sending node in a service A resource request sent to the primary node when the request is sent; a processing module, configured to allocate a resource pool to the sending node according to the resource request; wherein the resource pool includes at least a time-frequency resource.
  • another technical solution adopted by the present invention is to provide a network resource scheduling system, which includes a master node, a sending node, and a receiving node; wherein, the sending node is a network node as described above, and the master node It is a network node as described above.
  • a network resource scheduling device which includes a processor, a memory, an input device, and an output device; and an output device is configured to send a service request to The primary node sends a resource request; the input device is configured to receive a resource pool allocated by the primary node according to the resource request; wherein the resource pool includes time-frequency resources; and the processor is configured to allocate resources from the resource pool to the receiving node to utilize the allocated resources The receiving node sends the service.
  • the transmitting node sends a resource request to the primary node when there is a service sending requirement; the sending node receives the resource pool allocated by the primary node according to the resource request; A resource is allocated to the receiving node in the resource pool to transmit the service to the receiving node by using the allocated resource.
  • the sending node of the present invention replaces the primary node according to the service to be allocated, allocates the resources of the primary node, reduces the burden on the primary node, and solves the problem that the network performance is excessively dependent on the primary node and causes the network bottleneck. The problem is to improve the performance of the network and increase the network capacity.
  • FIG. 1 is a schematic flowchart of a first embodiment of a network resource scheduling method according to the present invention
  • FIG. 2 is a schematic flowchart of a second embodiment of a network resource scheduling method according to the present invention.
  • FIG. 3 is a signal flow diagram of a second embodiment of a network resource scheduling method according to the present invention.
  • FIG. 4 is a schematic diagram of a network structure of a second embodiment of a network resource scheduling method according to the present invention.
  • FIG. 5 is a schematic structural diagram of a first embodiment of a network node according to the present invention.
  • FIG. 6 is a schematic structural diagram of a second embodiment of a network node according to the present invention.
  • FIG. 7 is a schematic structural diagram of a first embodiment of a network resource scheduling apparatus according to the present invention.
  • FIG. 8 is a schematic structural diagram of a second embodiment of a network resource scheduling apparatus according to the present invention.
  • FIG. 9 is a schematic structural diagram of an implementation manner of a network resource scheduling system according to the present invention.
  • FIG. 1 is a schematic flowchart of a first embodiment of a network resource scheduling method according to the present invention, where the method includes:
  • Step S11 The sending node sends a resource request to the primary node when there is a service sending request.
  • a network node is a computer or other device connected to a network that has a separate address and has the ability to transmit or receive data.
  • a node can be a workstation, a customer, a network user, or a personal computer, or it can be a server, printer, or other network-connected device.
  • Each workstation, server, terminal device, that is, the device with its own unique network address is a network node.
  • the whole network is composed of many network nodes, and many network nodes are connected by communication lines to form a certain geometric relationship to form a network topology.
  • the master node may be a base station (BS), a server, a router, etc.
  • the slave node may be a mobile base station (MS), a server, a terminal, or the like.
  • the slave node includes a sending node and a receiving node, and when there is a service requirement between the sending node and the receiving node, the sending node sends a service to the receiving node.
  • a slave node can be either a sending node or a receiving node in different situations, and can also serve as a receiving node of another service while serving as a sending node of one service.
  • the service mainly refers to data and signal transmission between nodes and nodes, such as voice, video telephony, file sending, downloading, web page access, and the like.
  • the resource request mainly includes the amount of resources required by the sending node, which is mainly related to the service that the sending node needs to perform.
  • the resource request mainly includes buffer state information of the sending node.
  • the service When a service is required between the sending node and the receiving node, the service first waits in the buffer of the sending node. When the primary node allocates resources, the service is sent. When multiple services need to be performed at the same time, multiple Business will be in the buffer. Therefore, the status information of the buffer can directly reflect the resource request of the sending node. Therefore, the resource request includes the buffer status information of the sending node.
  • the resource request may further include channel quality information between the sending node and the receiving node.
  • the primary node may allocate resources to the sending node according to normal requirements. It is also possible to allocate resources to the transmitting node less; when the channel quality is poor, the master node can allocate more resources to the transmitting node.
  • Step S12 The sending node receives the resource pool allocated by the primary node according to the resource request; wherein the resource pool includes time-frequency resources.
  • the resources mainly include time-frequency resources, that is, physical resource blocks (PRBs).
  • PRBs physical resource blocks
  • One physical resource block corresponds to 12 consecutive carriers in the frequency domain (180K in the case of 15K carrier spacing), and one time slot in the time domain. (half subframe, 0.5ms) resources.
  • a resource pool ie a collection of resource blocks, for example comprising at least one time-frequency resource block.
  • the above can be considered as the first level resource allocation.
  • Step S13 The transmitting node allocates resources from the resource pool to the receiving node to send the service to the receiving node by using the allocated resource.
  • allocation of resources for a receiving node refers to a resource allocated by a transmitting node for each service in order to transmit a service with a plurality of different receiving nodes or to transmit a plurality of different services to the same receiving node.
  • the S13 may be: the sending node allocates resources from the resource pool to the receiving node according to the service requirement, to send the service to the receiving node by using the allocated resource.
  • the sending node needs to send the a service to the receiving node A, and needs to send the b service to the receiving node B.
  • the a service and the b service exist in the buffer of the sending node at the same time.
  • the sending node sends a resource request to the primary node, and obtains a resource pool from the primary node to complete the first-level resource allocation.
  • the resource pool here is a collection of multiple resource blocks, and the primary node does not perform service allocation on the resource pool.
  • the sending node performs second-level resource allocation on the resource pool according to the a service and the b service, and sends the service a to the receiving node A by using the resources allocated to the a service and the b service, and sends the service b to the receiving node B.
  • the sending node sends a resource request to the primary node when there is a service sending requirement; the sending node receives the resource pool allocated by the primary node according to the resource request; and the sending node allocates the receiving node from the resource pool. Resources to send traffic to the receiving node using the allocated resources.
  • the sending node of the present embodiment replaces the primary node with the service that needs to be sent according to the service to be allocated, and shares the work of the primary node, thereby reducing the burden on the primary node and solving the problem that the network performance is excessively dependent on the primary node.
  • the bottleneck problem has improved the performance of the network and increased the network capacity.
  • a schematic flowchart of a second embodiment of the network resource scheduling method of the present invention in the second implementation manner, the method may further include:
  • the sending node determines, according to the resource pool allocated by the primary node, the resource request information of the receiving node, and the channel quality between the sending node and the receiving node, where the sending parameter includes the time-frequency resource of the service, and the modulation and coding mode. At least one of a MIMO (Multiple-Input Multiple-Out-put) mode and power allocation information.
  • MIMO Multiple-Input Multiple-Out-put
  • the resource request information of the receiving node refers to the buffer status information of the receiving node.
  • the method for determining the sending parameter of the service may refer to the method for determining the sending parameter of the service by the master node in the prior art. Let me repeat.
  • the sending node determines, according to a preset scheduling algorithm, a scheduling relationship between resources allocated to the multiple receiving nodes.
  • the sending node may send services to multiple receiving nodes at the same time when the network is running, the resource pool needs to be scheduled to meet the requirements of multiple services at the same time, so that multiple receiving nodes can be scheduled according to a preset algorithm. Resources.
  • the scheduling algorithm determines the scheduling relationship between the resources allocated to the multiple receiving nodes, and can refer to the practice of the primary node in the prior art, and details are not described herein again.
  • S21 and S22 do not necessarily need to be performed in chronological order. For example, S22 may be performed first, and then S21 may be performed. Further, S21 and S22 may be simultaneously performed. In addition, since the second embodiment is based on the first embodiment, S21 and S22 may be performed after S13 of the first embodiment or simultaneously with S13.
  • FIG. 3 a signal flow diagram of a second embodiment of a network resource scheduling method according to the present invention
  • FIG. 4 is a schematic diagram of a network structure of a second embodiment of a network resource scheduling method according to the present invention. The embodiment is described in detail in the embodiment:
  • the user needs to simultaneously transmit the file C to the terminal 331 through the terminal 32, and by transmitting the file D to the terminal 332, the file transmission state is generated and buffered in the buffer of the terminal 32.
  • the terminal 32 transmits its own buffer status to the network server 31 to cause the network server 31 to allocate resources.
  • the network server 31 allocates a resource pool to the terminal 32.
  • the network server 31 does not require the specific allocation of the resource pool as a requirement, and is equivalent to handing over the allocation rights of a large resource to the terminal 32.
  • the terminal 32 After obtaining the resource pool (allocation authority), the terminal 32 determines the transmission parameter of the service according to the resource pool allocated by the network server 31, the resource request information of the terminal 332, and the channel quality between the terminal 32 and the terminal 332, respectively.
  • the sending parameter includes at least one of a time-frequency resource of a service, a modulation and coding mode, a MIMO (Multiple-Input Multiple-Out-put) mode, and power allocation information.
  • the network node is a sending node, and is used for network resource scheduling.
  • the network node includes:
  • the sending module 51 is configured to send a resource request to the primary node when there is a service sending request.
  • the receiving module 52 is configured to receive a resource pool allocated by the primary node according to the resource request, where the resource pool includes a time-frequency resource.
  • the processing module 53 is configured to allocate resources from the resource pool to the receiving node to send the service to the receiving node by using the allocated resources.
  • the processing module 53 is further configured to allocate, according to the resource pool allocated by the primary node, Receiving resource request information of the node and channel quality between the sending node and the receiving node, and determining a sending parameter of the service; where the sending parameter includes at least one of a time-frequency resource of the service, a modulation and coding mode, a MIMO mode, and power allocation information. .
  • the processing module 53 is further configured to allocate resources from the resource pool to the receiving node according to the service requirement, to send the service to the receiving node by using the allocated resource.
  • the processing module 53 is further configured to: when a plurality of receiving nodes have a service sending requirement, the sending node determines, according to a preset scheduling algorithm, a scheduling relationship between resources allocated to the multiple receiving nodes. .
  • FIG. 6 a schematic structural diagram of a second embodiment of a network node according to the present invention, where the network node is a master node, and is used for network resource scheduling, where the network node includes:
  • the receiving module 61 is configured to receive a resource request sent by the sending node to the primary node when there is a service sending request.
  • the processing module 62 is configured to allocate a resource pool to the sending node according to the resource request, where the resource pool includes at least a time-frequency resource.
  • the master node further includes a sending module 63, and the sending module 63 is configured to broadcast the resource allocation result to all nodes after performing resource allocation.
  • FIG. 7 a schematic structural diagram of a first embodiment of a network resource scheduling apparatus according to the present invention, where the device corresponds to a sending node in the above-mentioned fact mode, which may be a server, a mobile base station or a terminal, and the device 70 includes a processor 71, a memory 72, and a receiving The processor 73 and the transmitter 74.
  • a sending node in the above-mentioned fact mode which may be a server, a mobile base station or a terminal
  • the device 70 includes a processor 71, a memory 72, and a receiving The processor 73 and the transmitter 74.
  • the transmitter 74 is configured to send a resource request to the primary node when there is a service transmission request.
  • the primary node here can be a base station or a server.
  • the receiver 73 is configured to receive a resource pool allocated by the primary node according to the resource request; wherein the resource pool includes a time-frequency resource.
  • the memory 72 is used to store some system files, algorithms, history of programs or resource allocations, and the like.
  • the processor 71 is configured to allocate resources from the resource pool to the receiving node to send the service to the receiving node by using the allocated resources.
  • the receiving node here may be a server, a mobile base station or a terminal.
  • the processor 71 is further configured to determine, according to the resource pool allocated by the primary node, the resource request information of the receiving node, and the channel quality between the sending node and the receiving node, where the sending parameter of the service is determined;
  • the transmission parameter includes at least one of a time-frequency resource of a service, a modulation and coding mode, a MIMO mode, and power allocation information.
  • the processor 71 is further configured to allocate resources from the resource pool to the receiving node according to the service requirement, to send the service to the receiving node by using the allocated resource.
  • the processor 71 is further configured to: when a plurality of receiving nodes have a service sending requirement, the sending node determines, according to a preset scheduling algorithm, a scheduling relationship between resources allocated to the multiple receiving nodes. .
  • the device 8 is a schematic structural diagram of a second embodiment of a network resource scheduling device according to the present invention.
  • the device corresponds to a master node in the foregoing embodiment, and may be a base station or a server.
  • the device 80 includes a processor 81, a memory 82, a receiver 83, and Transmitter 84.
  • the receiver 83 is configured to receive a resource request sent by the sending node to the primary node when there is a service sending request.
  • the transmitting node here may be a server, a mobile base station or a terminal.
  • the processor 81 is configured to allocate a resource pool to the sending node according to the resource request; wherein the resource pool includes at least a time-frequency resource.
  • the device further includes a transmitter 84, and the transmitter 84 is configured to broadcast the resource allocation result to all nodes, that is, all base stations, servers, and terminals, after performing resource allocation.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device implementations described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place, or It can also be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated units of the other embodiments described above may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods of the various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
  • a schematic structural diagram of an embodiment of a network resource scheduling system includes a master node 91, a sending node 92, and a receiving node 93.
  • the sending node 92 is a network node as described in the first embodiment of the network node.
  • the master node 91 is the network node described in the second embodiment of the network node as described above.
  • the sending node 92 in the network resource scheduling system may be the device in the first embodiment of the network resource scheduling device, and the master node 91 may be the device in the second embodiment of the network resource scheduling device. .
  • the foregoing network node and the implementation of the network resource scheduling system are based on the foregoing network resource scheduling method, device, and network node implementation manner, and the principles and implementation manners are similar, and are not described herein again.
  • a slave node can perform a first level resource allocation
  • the primary node performs the second-level resource allocation
  • the terminal may perform the first-level resource allocation
  • the server performs the second-level resource allocation.
  • each node can be a master node or a slave node.
  • any device can also function as a server or a terminal.

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Abstract

本发明公开了一种网络资源调度方法、设备、系统以及网络节点，该网络资源调度方法包括：发送节点在有业务发送需求时，向主节点发送资源请求；发送节点接收主节点根据资源请求分配的资源池；其中，资源池包括时间-频率资源；发送节点从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。通过上述方式，本发明能够提高网络资源的利用率，增加网络容量。

Description

一种网络资源调度方法、设备、系统以及网络节点 【技术领域】
本发明涉及通信技术领域，特别是涉及一种网络资源调度方法、设备、系统以及网络节点。
【背景技术】
无线Mesh网络(Wireless Mesh Networks，WMNs)，又称无线网状网，由主节点和从节点(从节点包括发送节点和接收节点)组成，也可是说是由路由器(mesh routers)和客户端(mesh clients)组成，或者由Mesh基站(mesh base station，MBS)和Mesh移动站(mesh mobile station，MMS)组成，其中路由器构成骨干网络，并和有线的internet网相连接，负责为客户端提供多跳的无线internet连接。无线Mesh网络也称为“多跳(multi-hop)”网络，它是一种与传统无线网络完全不同的新型无线网络技术，是一种低成本、高性能的网络架构。
在网络运行中，需要对网络资源进行调度分配，在现有技术中，通常采用集中式的调度方法，集中式的调度是无线Mesh网络中常用的一种方法。集中式的调度通常是所有从节点把资源请求上报给主节点，主节点根据一定的算法将可用资源分配给各个从节点，同时指定各节点的发送参数。
现有技术的缺点在于，主节点需要维护全网大量的信息，而当网络规模过大时，主节点负载大，容易成为网络瓶颈；同时各节点上报自己信息所需的信令开销也较大；并且一旦主节点不能正常工作，网络恢复的时间也比较长。
【发明内容】
本发明主要解决的技术问题是提供一种网络资源调度方法、设备、系统以及网络节点，能够减提高网络资源的利用率，增加网络容量。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种网络资源调度方法，该方法包括：发送节点在有业务发送需求时，向主节点发送资源请 求；发送节点接收主节点根据资源请求分配的资源池；其中，资源池包括时间-频率资源；发送节点从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
其中，该方法还包括：发送节点根据主节点分配的资源池、接收节点的资源请求信息以及发送节点与接收节点之间的信道质量，确定业务的发送参数；其中，发送参数包括业务的时频资源，调制编码方式、MIMO模式和功率分配信息中的至少一种。其中，发送节点从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务，具体包括：发送节点根据业务需求从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
其中，该方法还包括：当发送节点对多个接收节点具有业务发送需求时，发送节点根据预设调度算法，确定对多个接收节点分配的资源之间的调度关系。
其中，资源请求包括发送节点的缓冲区状态信息。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种网络节点，网络节点为发送节点，用于网络资源调度，该网络节点包括：发送模块，用于在有业务发送需求时，向主节点发送资源请求；接收模块，用于接收主节点根据资源请求分配的资源池；其中，资源池包括时间-频率资源；处理模块，用于从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
其中，处理模块还用于根据主节点分配的资源池、接收节点的资源请求信息以及发送节点与接收节点之间的信道质量，确定业务的发送参数；其中，发送参数包括业务的时频资源，调制编码方式、MIMO模式和功率分配信息中的至少一种。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种网络节点，网络节点为主节点，用于网络资源调度，该网络节点包括：接收模块，用于接收发送节点在有业务发送需求时，向主节点发送的资源请求；处理模块，用于根据资源请求为发送节点分配资源池；其中，资源池至少包括时间-频率资源。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种网络资源调度系统，该系统包括主节点、发送节点以及接收节点；其中，发送节点是如上所述的网络节点，主节点是如上所述的网络节点。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种网络资源调度设备，该设备包括处理器、存储器、输入装置以及输出装置；输出装置用于在有业务发送需求时，向主节点发送资源请求；输入装置用于接收主节点根据资源请求分配的资源池；其中，资源池包括时间-频率资源；处理器用于从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
本发明的有益效果是：区别于现有技术的情况，本发明中发送节点在有业务发送需求时，向主节点发送资源请求；发送节点接收主节点根据资源请求分配的资源池；发送节点从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。通过上述方式，本发明的发送节点代替主节点根据需要发送的业务对资源进行具体分配，分担了主节点的工作，减轻了主节点的负担，同时，解决了网络性能过度依赖主节点导致网络瓶颈的问题，提升了网络的性能，增加了网络容量。
【附图说明】
图1是本发明网络资源调度方法第一实施方式的流程示意图；
图2是本发明网络资源调度方法第二实施方式的流程示意图；
图3是本发明网络资源调度方法第二实施方式一具体实施例的信号流图；
图4是本发明网络资源调度方法第二实施方式一具体实施例的网络结构示意图；
图5是本发明网络节点第一实施方式的结构示意图；
图6是本发明网络节点第二实施方式的结构示意图；
图7是本发明网络资源调度设备第一实施方式的结构示意图；
图8是本发明网络资源调度设备第二实施方式的结构示意图；
图9是本发明网络资源调度系统一实施方式的结构示意图。
【具体实施方式】
参阅图1，本发明网络资源调度方法第一实施方式的流程示意图，该方法包括：
步骤S11：发送节点在有业务发送需求时，向主节点发送资源请求。
网络节点是指一台电脑或其他设备与一个有独立地址和具有传送或接收数据功能的网络相连。节点可以是工作站、客户、网络用户或个人计算机，还可以是服务器、打印机和其他网络连接的设备。每一个工作站、服务器、终端设备，即拥有自己唯一网络地址的设备都是网络节点。整个网络就是由这许许多多的网络节点组成的，把许多的网络节点用通信线路连接起来，形成一定的几何关系，以形成网络拓扑。
其中，主节点可以是基站(BS)、服务器、路由器等，从节点可以是移动基站(MS)、服务器、终端等。具体地，从节点包括发送节点和接收节点，发送节点与接收节点之间有业务需求时，发送节点向接收节点发送业务。当然，一个从节点在不同的情况下，既可以是发送节点，也可以是接收节点，还可以在作为一个业务的发送节点的同时，作为另一个业务的接收节点。业务主要是指节点与节点之间数据、信号传输，例如语音、视频电话，文件发送、下载，网页的访问等等。
资源请求主要包括发送节点所需要的资源的多少，这主要跟发送节点所需要进行的业务有关。
可选的，在一实施方式中，资源请求主要包括发送节点的缓冲区状态信息。当发送节点与接收节点之间需要进行业务往来时，该业务会先在发送节点的缓冲区等待，当主节点分配到资源时，再进行业务发送；当同时有多个业务需要进行时，多个业务都会在缓冲区。因此，缓冲区的状态信息可以直接体现发送节点的资源请求。所以，资源请求包括发送节点的缓冲区状态信息。
可选的，在其他实施方式中，该资源请求还可以包括发送节点与接收节点之间的信道质量信息，当信道质量好时，主节点可以按照正常需求为发送节点分配资源，在资源紧张时，也可以较少的为发送节点分配资源；当信道质量差时，主节点可以较多的为发送节点分配资源。
步骤S12：发送节点接收主节点根据资源请求分配的资源池；其中，资源池包括时间-频率资源。
资源主要包括时间-频率资源，即物理资源块(PRB)，一个物理资源块对应的是频域上12个连续的载波(在15K载波间隔的情况下是180K)，时域上是一个时隙(半个子帧，0.5ms)的资源。
资源池，即资源块的集合，例如包括至少一个的时间-频率资源块。
以上可以认为是第一级资源分配。
以下则是第二级资源分配：
步骤S13：发送节点从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
这里的“为接收节点分配资源”是指发送节点为了与多个不同的接收节点发送业务、或者与同一个接收节点发送多个不同的业务时，为每个业务而分配的资源。
可选的，由于第二级资源分配是根据所要发送的业务，因此，S13还可以是：发送节点根据业务需求从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
例如，发送节点需要给接收节点A发送a业务，同时需要给接收节点B发送b业务，a业务和b业务同时存在于发送节点的缓冲区。发送节点向主节点发送资源请求，并从主节点获取到资源池，完成第一级资源分配。这里的资源池是多个资源块的集合，主节点并没有对资源池进行业务分配。发送节点再根据a业务和b业务对该资源池进行第二级资源分配，以利用分配给a业务和b业务的资源向接收节点A发送业务a，向接收节点B发送业务b。
区别于现有技术，本实施方式中，发送节点在有业务发送需求时，向主节点发送资源请求；发送节点接收主节点根据资源请求分配的资源池；发送节点从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。通过上述方式，本实施方式的发送节点代替主节点根据需要发送的业务对资源进行具体分配，分担了主节点的工作，减轻了主节点的负担，同时，解决了网络性能过度依赖主节点导致网络瓶颈的问题，提升了网络的性能，增加了网络容量。
可选的，参阅图2，本发明网络资源调度方法第二实施方式的流程示意图，在第二实施方式中，该方法还可以包括：
S21：发送节点根据主节点分配的资源池、接收节点的资源请求信息以及发送节点与接收节点之间的信道质量，确定业务的发送参数；其中，发送参数包括业务的时频资源，调制编码方式、MIMO(Multiple-Input Multiple-Out-put，多输入多输出)模式和功率分配信息中的至少一种。
接收节点的资源请求信息是指接收节点的缓冲区状态信息。
这里根据主节点分配的资源池、接收节点的资源请求信息以及发送节点与接收节点之间的信道质量，确定业务的发送参数可以参考现有技术中主节点确定业务的发送参数的方法，这里不再赘述。
S22：当发送节点对多个接收节点具有业务发送需求时，发送节点根据预设调度算法，确定对多个接收节点分配的资源之间的调度关系。
由于在网络运行时，发送节点可能会向多个接收节点同时发送业务，因此需要对资源池进行调度以同时满足多个业务的需求，因此可以根据预设的算法调度多个接收节点之间的资源。
这里根据主节点分配的资源池、接收节点的资源请求信息以及发送节点与接收节点之间的信道质量，确定业务的发送参数，以及对多个接收节点具有业务发送需求时，发送节点根据预设调度算法，确定对多个接收节点分配的资源之间的调度关系，均可以参考现有技术中主节点的做法，这里不再赘述。值得 注意的是，S21和S22并不一定需要按照时间顺序来执行，例如，可以先执行S22，再执行S21，另外，S21和S22也可以同时进行。另外，由于第二实施方式是在第一实施方式基础上的，因此，S21和S22可以是在第一实施方式的S13之后，也可以与S13同时进行。
参阅图3，本发明网络资源调度方法第二实施方式一具体实施例的信号流图，以及图4，本发明网络资源调度方法第二实施方式一具体实施例的网络结构示意图，下面以一具体的实施例，对本实施方式进行详细说明：
用户需要通过终端32同时向终端331发送文件C，通过向终端332发送文件D，生成文件发送状态，并在终端32的缓冲区缓冲。终端32将自己的缓冲区状态发送给网络服务器31，以使网络服务器31分配资源。
此时，网络服务器31分配给终端32一资源池，其中，网络服务器31并未对该资源池的具体分配情况作为要求，相当于是将一大块资源的分配权交给了终端32。
终端32获得资源池(的分配权限)后，再根据网络服务器31分配的资源池、终端332的资源请求信息以及终端32分别与终端331和终端332之间的信道质量，确定业务的发送参数；其中，发送参数包括业务的时频资源，调制编码方式、MIMO(Multiple-Input Multiple-Out-put，多输入多输出)模式和功率分配信息中的至少一种。
参阅图5，本发明网络节点第一实施方式的结构示意图，该网络节点为发送节点，用于网络资源调度，该网络节点包括：
发送模块51，用于在有业务发送需求时，向主节点发送资源请求。
接收模块52，用于接收主节点根据资源请求分配的资源池；其中，资源池包括时间-频率资源。
处理模块53，用于从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
可选的，在其他实施方式中，处理模块53还用于根据主节点分配的资源池、 接收节点的资源请求信息以及发送节点与接收节点之间的信道质量，确定业务的发送参数；其中，发送参数包括业务的时频资源，调制编码方式、MIMO模式和功率分配信息中的至少一种。
可选的，在其他实施方式中，处理模块53还用于根据业务需求从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
可选的，在其他实施方式中，处理模块53还用于在对多个接收节点具有业务发送需求时，发送节点根据预设调度算法，确定对多个接收节点分配的资源之间的调度关系。
参阅图6，本发明网络节点第二实施方式的结构示意图，该网络节点为主节点，用于网络资源调度，该网络节点包括：
接收模块61，用于接收发送节点在有业务发送需求时，向主节点发送的资源请求。
处理模块62，用于根据资源请求为发送节点分配资源池；其中，资源池至少包括时间-频率资源。
可选的，在其他实施方式中，主节点还包括发送模块63，发送模块63用于在进行资源分配后，将资源分配结果广播给所有节点。
参阅图7，本发明网络资源调度设备第一实施方式的结构示意图，该设备对应上述事实方式中的发送节点，可以是服务器、移动基站或终端，该设备70包括处理器71、存储器72、接收器73以及发送器74。
发送器74用于在有业务发送需求时，向主节点发送资源请求。这里的主节点可以是基站或服务器。
接收器73用于接收主节点根据资源请求分配的资源池；其中，资源池包括时间-频率资源。
存储器72用于存储一些系统文件、算法、程序或资源分配的历史记录等。
处理器71用于从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。这里的接收节点可以是服务器、移动基站或终端。
可选的，在其他实施方式中，处理器71还用于根据主节点分配的资源池、接收节点的资源请求信息以及发送节点与接收节点之间的信道质量，确定业务的发送参数；其中，发送参数包括业务的时频资源，调制编码方式、MIMO模式和功率分配信息中的至少一种。
可选的，在其他实施方式中，处理器71还用于根据业务需求从资源池中为接收节点分配资源，以利用分配的资源向接收节点发送业务。
可选的，在其他实施方式中，处理器71还用于在对多个接收节点具有业务发送需求时，发送节点根据预设调度算法，确定对多个接收节点分配的资源之间的调度关系。
参阅图8，本发明网络资源调度设备第二实施方式的结构示意图，该设备对应上述实施方式中的主节点，可以是基站或服务器，该设备80包括处理器81、存储器82、接收器83以及发送器84。
接收器83用于接收发送节点在有业务发送需求时，向主节点发送的资源请求。这里的发送节点可以是服务器、移动基站或终端。
处理器81用于根据资源请求为发送节点分配资源池；其中，资源池至少包括时间-频率资源。
可选的，在其他实施方式中，该设备还包括发送器84，发送器84用于在进行资源分配后，将资源分配结果广播给所有节点，即所有的基站、服务器以及终端。
在本发明所提供的几个实施方式中，应该理解到，所揭露的方法以及设备，可以通过其它的方式实现。例如，以上所描述的设备实施方式仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者 也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施方式方案的目的。
另外，在本发明各个实施方式中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
上述其他实施方式中的集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本发明各个实施方式所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
参阅图9，本发明网络资源调度系统一实施方式的结构示意图，该系统包括主节点91、发送节点92以及接收节点93；其中，发送节点92是如上网络节点第一实施方式所述的网络节点，主节点91是如上网络节点第二实施方式所述的网络节点。
另外，在其他实施方式中，该网络资源调度系统中的发送节点92可以是如上网络资源调度设备第一实施方式中的设备，主节点91可以是如上网络资源调度设备第二实施方式中的设备。
以上网络节点以及网络资源调度系统的实施方式是基于上述网络资源调度方法、设备以及网络节点的实施方式，其原理和实施方式类似，这里不再赘述。
可以理解的，在以上各个实施方式中，各个节点或各个服务器和终端是可以互换的。例如在网络节点的实施方式中，从节点可以进行第一级资源分配， 而主节点进行第二级资源分配；或者在设备的实施方式中，终端可以进行第一级资源分配，而服务器来进行第二级资源分配。换句话说，在复杂的网络节点中，每个节点都可以是主节点或者从节点，在各种网络设备中，任何一个设备也都可以作为服务器或者终端。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种网络资源调度方法，其中，包括：
    发送节点在有业务发送需求时，向主节点发送资源请求；
    所述发送节点接收所述主节点根据所述资源请求分配的资源池；其中，所述资源池包括时间-频率资源；
    所述发送节点从所述资源池中为接收节点分配资源，以利用所述分配的资源向所述接收节点发送业务。
  2. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述发送节点根据所述主节点分配的资源池、所述接收节点的资源请求信息以及所述发送节点和所述接收节点之间的信道质量，确定所述业务的发送参数；
    其中，所述发送参数包括业务的时间-频率资源、调制编码方式、MIMO模式和功率分配信息中的至少一种。
  3. 根据权利要求1所述的方法，其中，所述发送节点从所述资源池中为接收节点分配资源，以利用所述分配的资源向所述接收节点发送业务，具体包括：
    所述发送节点根据所述业务需求从所述资源池中为接收节点分配资源，以利用所述分配的资源向所述接收节点发送业务。
  4. 根据权利要求1所述的方法，其中，所述方法还包括：
    当所述发送节点对多个接收节点具有业务发送需求时，所述发送节点根据预设调度算法，确定对所述多个接收节点分配的资源之间的调度关系。
  5. 根据权利要求1所述的方法，其中，所述资源请求包括所述发送节点的缓冲区状态信息。
  6. 一种网络节点，所述网络节点为发送节点，用于网络资源调度，其中，包括：
    发送模块，用于在有业务发送需求时，向主节点发送资源请求；
    接收模块，用于接收所述主节点根据所述资源请求分配的资源池；其中，所述资源池包括时间-频率资源；
    处理模块，用于从所述资源池中为接收节点分配资源，以利用所述分配的资源向所述接收节点发送业务。
  7. 根据权利要求6所述的网络节点，其中，
    所述处理模块还用于根据所述主节点分配的资源池、所述接收节点的资源请求信息以及所述发送节点和所述接收节点之间的信道质量，确定所述业务的发送参数；
    其中，所述发送参数包括业务的时间-频率资源、调制编码方式、MIMO模式和功率分配信息中的至少一种。
  8. 一种网络节点，所述网络节点为主节点，用于网络资源调度，其中，包括：
    接收模块，用于接收发送节点在有业务发送需求时，向主节点发送的资源请求；
    处理模块，用于根据所述资源请求为所述发送节点分配资源池；其中，所述资源池至少包括时间-频率资源。
  9. 一种网络资源调度系统，其中，包括主节点、发送节点以及接收节点；
    其中，所述发送节点是如权利要求6-7任一项所述的网络节点，所述主节点是如权利要求8所述的网络节点。
  10. 一种网络资源调度设备，其中，包括处理器、存储器、输入装置以及输出装置；
    所述输出装置用于在有业务发送需求时，向主节点发送资源请求；
    所述输入装置用于接收所述主节点根据所述资源请求分配的资源池；其中，所述资源池包括时间-频率资源；
    所述处理器用于从所述资源池中为接收节点分配资源，以利用所述分配的资源向所述接收节点发送业务。
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