KR20110136485A - Method for resource management based on multi-layered network - Google Patents

Abstract

PURPOSE: A resource management method based on a multi-layered network is provided to reallocate traffic based on a performance parameter which is received from interface between networks. CONSTITUTION: An interface unit(110) forms interface in a multi-layered network in which network regions are interpolated with a lower network region. A performance confirmation part(120) checks the success or failure of a preset performance index based on the performance parameter which is transmitted from the lower network through the interface. A traffic controlling part(130) allocates traffic by network domain. The traffic controlling part reallocates traffic by the allocated network domain by the success of the performance index.

Description

Multi-tiered network-based resource management method {METHOD FOR RESOURCE MANAGEMENT BASED ON MULTI-LAYERED NETWORK}

The present invention relates to a network resource management scheme, and more particularly, to a multi-tier network capable of effectively controlling the mobility of data explosion phenomenon between networks by exchanging predetermined performance parameters in a multi-tier network in which a plurality of network regions overlap. It relates to a base resource management method.

The demand for wireless data transmission is increasing due to the rapid increase in the use of smart phones. In particular, smart phone users do not use the service in a fixed place, but it is difficult to cope because it uses data in an irregular pattern while moving places.

As a result, the burden of investment in mobile operators is increasing due to the increase in wireless Internet traffic around the world, and in order to cope with the increase in traffic, it is possible to intensively expand base stations and backhaul dedicated lines and limit data transmission capacity.

In this regard, a model for managing radio network resources between heterogeneous networks by constructing a signaling interface between heterogeneous networks in addition to the above-described method of expanding a network or restricting subscriber service is proposed.

However, this has the disadvantage that the optimization of the entire network is deteriorated due to the lack of information about the entire network, and the performance of the network may be degraded due to the large amount of overhead traffic required during the negotiation between networks. have. In addition, such a network management model has emerged as a problem of weak scalability due to the difficulty in modifying the system as the system is continuously introduced and upgraded.

On the other hand, most of the methods proposed in current multi-tiered networks, decision-making methods are mostly system-oriented.

 In other words, the system itself obtains the necessary measurements from each network, calculates common comparison parameters, determines whether to redistribute traffic between specific networks based on the calculated parameters, or access selection. ) Is used. Eventually all of these processes are determined by the system itself and take action by sending commands to the mobile terminal.

However, this method has a problem in that it operates independently from the user's option and lacks the flexibility required for a multi-tiered network by providing a limited function to the network administrator.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an upper network apparatus in a multi-tiered network, which allocates traffic for each network area, and a lower network apparatus located in the multi-tiered network to the upper layer. Each network is operated based on the traffic allocated from the network device, and the predetermined performance parameter detected according to the network operation is transmitted to the upper network device, and the higher network device receives the performance parameter received through the interface between networks. By providing a multi-tiered network-based resource management method that redistributes traffic based on this, it is possible to effectively reduce the mobility of data explosion between networks by exchanging predetermined performance parameters in a multi-tiered network in which a plurality of network regions overlap. It is in fishery.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to allocate traffic for each network area in a multi-tiered network, and to designate performance parameters specified from a lower network through an interface with the lower network area. Multi-tiered network-based resource management of higher network devices and higher network devices that redistribute the traffic for each assigned network area according to whether the performance indicators have been achieved, and whether the performance indicators have been designated based on the received performance parameters. By providing a method, it is possible to effectively control the mobility of data explosion phenomena between networks through the exchange of predetermined performance parameters in a multi-tier network in which a plurality of network regions overlap.

According to an aspect of the present invention for achieving the above object is provided a higher network device, the device comprising: an interface unit for forming an interface with a lower network area in a multi-tiered network overlapping one or more network areas; A performance checking unit for confirming whether a predetermined performance index has been achieved for each network based on performance parameters received from a lower network through the interface; And a traffic control unit for allocating traffic for each network area and redistributing the traffic for each allocated network area according to whether the performance index is achieved.

Preferably, the interface unit forms an interface with the subordinate network including a micro type cellular network and a wireless internet network.

Preferably, the interface unit forms the interface by matching with an access point (AP) located in the lower network.

Preferably, the performance detection unit, characterized in that for receiving the performance parameters according to the set period from each lower network operating the network based on the allocated traffic.

Preferably, the traffic control unit, characterized in that for resetting the frequency resources for each network in accordance with whether the performance indicator is achieved.

According to another aspect of the present invention, there is provided a multi-tier network-based resource management method comprising: a traffic allocating step in which a higher network device allocates traffic for each network region in a multi-tier network in which one or more network regions overlap; A network operation step in which a lower network device located in the multi-tier network operates each network based on traffic allocated from the upper network device; A parameter transmitting step of transmitting, by the lower network device to a higher network device, predetermined performance parameters detected according to network operation; And a traffic control step of redistributing the traffic based on the performance parameter received by the upper network apparatus through an interface between networks.

Preferably, the parameter transmitting step is characterized in that for transmitting the detected performance parameters through the interface according to the setting period.

Preferably, the traffic control step, the performance detection step of confirming whether to achieve a predetermined performance indicator for each network based on the performance parameters; And a traffic redistribution step of redistributing the traffic according to the allocated network region according to whether the performance indicator is achieved.

Preferably, the traffic control step, characterized in that it further comprises a resource reallocation step of resetting the frequency resources for each network in accordance with whether the performance indicators are achieved.

According to yet another aspect of the present invention, there is provided a multi-tier network-based resource management method comprising: a traffic allocation step of allocating traffic per network region in a multi-tier network in which one or more network regions overlap; A parameter receiving step of receiving a predetermined performance parameter from a lower network through an interface with a lower network area; A performance checking step of confirming whether a predetermined performance index has been achieved for each network based on the performance parameters received through the interface; And a traffic control step of redistributing traffic according to the allocated network region according to whether the performance indicator is achieved.

Preferably, the parameter receiving step is characterized in that the performance parameter is received through an interface with the subordinate network including a micro network and a wireless internet network.

Preferably, the parameter receiving step is characterized in that for receiving the predetermined performance parameters through the interface through matching with the access point (AP, Access Point) located in the lower network.

Preferably, the parameter receiving step is characterized in that for receiving the performance parameters according to the setting period from each lower network operating the network based on the allocated traffic.

Preferably, the traffic control step, characterized in that for resetting the frequency resources for each network in accordance with whether the performance indicator is achieved.

According to the multi-tiered network-based resource management method according to the present invention, by performing resource management between networks based on predetermined performance parameters collected through an interface between networks, load-balancing and cellular between macro-micro cells are performed. It is possible to provide a solution to the mobility of data congestion in a multi-tiered network by providing a traffic distribution scheme between a system and a Wi-Fi system.

1 is a schematic configuration diagram of a multi-tiered network-based resource management system according to an embodiment of the present invention.
2 is a schematic structural diagram of an upper network device according to an embodiment of the present invention;
3 and 4 are schematic flowcharts illustrating a multi-tiered network-based resource management method according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a schematic block diagram of a multi-tiered network-based resource management system according to an embodiment of the present invention.

As shown in FIG. 1, the system includes a higher network device 100 that establishes traffic based on performance parameters collected through an inter-network interface in a multi-tier network; And a lower network device 200 that operates each network based on the traffic allocated from the upper network device 100. Here, a multi-tiered network refers to a network state in which one or more network regions overlap, for example, a macro type cellular network in which maximizing frequency operation efficiency is important by arranging the upper networks in the order of the lower networks. Micro-type cellular networks aimed at supporting maximum data rates from Wi-Fi, and Wi-Fi networks aimed at supporting traffic distribution and uniform services. Accordingly, the upper network device 100 refers to a network device that operates a macro type cellular network that is the highest network in a multi-level network, and the lower network device 200 is a micro device. It refers to a network device that operates a cellular network of type) and a Wi-Fi network, respectively.

The upper network device 100 allocates traffic for each network area in a multi-tiered network. More specifically, the upper network device 100 allocates frequency and coverage in consideration of a region and a network, and sets an operation target for each network, that is, a performance index. Further, the upper network device 100 sets throughput and quality of service (QoS) according to the subscriber fee level for each network, and sets traffic generation amount and traffic mobility. Based on this, the upper network device 100 allocates traffic for operation of each network area in the multi-level network.

In addition, the upper network device 100 redistributes the traffic based on predetermined performance parameters collected through the interface between the networks. More specifically, the upper network device 100 receives the performance parameter according to a setting period from each lower network operating the network based on the allocated traffic. Further, the upper network device 100 checks whether a predetermined performance index is achieved for each network based on the performance parameter received through the interface, and redistributes the traffic for each allocated network area according to whether the performance index is achieved. That is, the upper network device 100 receives performance parameters from the lower network device 200 and based on the calculation result including a mathematical method for satisfying each network operation target based on the informed information, each network in the region. Redistribute traffic to the network and reassign network resources (frequency) if necessary.

The lower network apparatus 200 operates each network based on traffic allocated from the upper network apparatus 100 in a multi-tiered network, and transmits the performance parameter detected according to the network operation to the upper network apparatus 100. do. More specifically, the lower network apparatus 200 may perform performance parameters detected according to the network operation, for example, user configuration on the user side, terminal type, toll level according to the terminal type, and required throughput and network side. The cell type, frequency load, frequency quality of service (QoS), etc. are transmitted to the higher network device 100 according to a setting cycle.

For reference, according to the system configuration described above, an embodiment of ensuring inter-network mobility based on network-specific load information is as follows.

That is, the upper network device 100 obtains load information according to a setting cycle from each lower network device 200 operating a network based on the allocated traffic. In this case, since each load information obtained from the lower network apparatus 200 is different according to uplink and downlink, the load information to be acquired may be variously defined including the following method. Can be. For example, when each of the uplink and downlink load information is converted into a percentage, either the larger of the two values is defined as an acquisition target, or an average value of each of the uplink and downlink load information is defined as the acquisition target. This may exist.

Further, the higher network apparatus 100 calculates a common comparison target value (VP, Virtual Price) between networks based on the obtained load information. More specifically, the higher network device 100 may calculate the comparison target value VP for each network in the form of a linear function of load / capacity as shown in Equation 1 below.

[Equation 1]

VP = f (load, capacity) = a * (load / capacity) + b

Based on this, the upper network apparatus 100 constructs a priority list for handover between networks using the calculated comparison target value VP. In this case, the upper network apparatus 100 may further reconstruct the priority list for the handover after adjusting the comparison target value VP by additionally reflecting the network operation policy.

Furthermore, the upper network device 100 transmits a priority list to each lower net device 200 belonging to a multi-tiered network, whereby the higher network device 100 has a higher place (a high resource use rate) in a place where the network priority is low. Traffic redistribution takes place, which ultimately distributes the overall network load, ensuring network stability.

Hereinafter, a detailed configuration of the upper network device 100 will be described with reference to FIG. 2.

That is, the upper network device 100 is an interface unit 110 for forming an interface with a lower network area in a multi-tiered network, and a performance checking unit 120 for checking whether a predetermined performance index is achieved for each network based on performance parameters for each network. ) And a traffic control unit 130 for allocating traffic for each network area.

The interface unit 110 forms an interface with the lower network including a micro type cellular network and a wireless internet network. More specifically, the interface unit 110 forms a physical interface through matching with an access point (AP) located in the lower network, and performs resource management between networks through the physical interface.

The performance checking unit 120 checks whether a predetermined performance index is achieved for each network based on the performance parameters received from the lower network through the interface. More specifically, the performance checker 120 receives a performance parameter from the lower network apparatus 200 and assigns it to each network through a calculation including a mathematical method capable of satisfying each network operation target based on the informed information. Check if performance indicators have been achieved. That is, the performance checking unit 120 performs user-side performance parameters including the user configuration, the terminal type, the charge level according to the terminal type, and the required throughput, the cell type, the frequency load, and the quality of service (QoS). Receives the performance parameters of the network side including a, and calculates the QoS difference for each network based on the received performance parameters for the user QoS, FA operation efficiency, FA operation revenue, and traffic switching corresponding to the performance indicators designated for each network.

The traffic controller 130 allocates traffic for each network area in a multi-tiered network. More specifically, the traffic control unit 130 allocates frequencies and coverages in consideration of regions and networks, and sets operation targets, that is, performance indicators, for each network. Further, the traffic controller 130 sets throughput and quality of service (QoS) according to the subscriber fee level for each network, and sets traffic generation amount and traffic mobility. Based on this, the upper network device 100 allocates traffic for operation of each network area in the multi-level network.

In addition, the traffic controller 130 redistributes the traffic for each allocated network area according to whether the performance indicator is achieved. More specifically, the traffic control unit 130 redistributes traffic to each network in the region based on a calculation result including a mathematical method that can satisfy each network operation target based on the information notified from the lower network device 200. If necessary, reassign network resources (frequency).

As described above, according to the multi-tiered network-based resource management system according to the present invention, there is provided a method for load balancing between macro-micro cells and traffic distribution between a cellular system and a wireless LAN system. Providing a solution to the mobility of data congestion in multi-tiered networks can be provided.

Hereinafter, a multi-tiered network-based resource management method according to an embodiment of the present invention will be described with reference to FIGS. 3 and 4. Here, for the convenience of description, the configuration shown in FIGS. 1 and 2 will be described with reference to the corresponding reference numerals.

First, a method of driving a multi-tiered network-based resource management system will be described with reference to FIG. 3.

First, the upper network device 100 allocates traffic for each network area in a multi-tiered network (S110-S120). Preferably, the upper network device 100 allocates frequencies and coverages in consideration of regions and networks, and sets operation targets, that is, performance indicators, for each network. Further, the upper network device 100 sets throughput and quality of service (QoS) according to the subscriber fee level for each network, and sets traffic generation amount and traffic mobility. Based on this, the upper network device 100 allocates traffic for operation of each network area in the multi-level network.

Then, the lower network device 200 located in the multi-level network operates each network based on the traffic allocated from the upper network device 100 (S130).

Then, the lower network apparatus 200 transmits a predetermined performance parameter detected according to network operation to the upper network apparatus (S140). Preferably, the lower network apparatus 200 may perform performance parameters detected according to network operation, for example, user configuration on the user side, terminal type, toll level according to the terminal type, and required throughput and network side. The cell type, frequency load, frequency quality of service (QoS), etc. are transmitted to the higher network device 100 according to a setting cycle.

Thereafter, the upper network device 100 redistributes the traffic based on the performance parameter received through the interface between the networks (S150-S170). Preferably, the upper network device 100 receives the performance parameter according to a setting period from each lower network operating the network based on the allocated traffic. Further, the upper network device 100 checks whether a predetermined performance index is achieved for each network based on the performance parameter received through the interface, and redistributes the traffic for each allocated network area according to whether the performance index is achieved. That is, the upper network device 100 receives performance parameters from the lower network device 200 and based on the calculation result including a mathematical method for satisfying each network operation target based on the informed information, each network in the region. Redistribute traffic to the network and reassign network resources (frequency) if necessary.

Hereinafter, a driving method of the upper network device 100 will be described with reference to FIG. 4.

First, traffic for each network area is allocated in a multi-tiered network (S210-S230). Preferably, the traffic controller 130 allocates frequency and coverage in consideration of the region and the network, and sets an operation target, that is, a performance index, for each network. Further, the traffic controller 130 sets throughput and quality of service (QoS) according to the subscriber fee level for each network, and sets traffic generation amount and traffic mobility. Based on this, the upper network device 100 allocates traffic for operation of each network area in the multi-level network.

Then, a predetermined performance parameter is received from the lower network through the interface with the lower network area (S240-S250). Preferably, the performance checker 120 receives the performance parameters from the sub-network including the micro type cellular network and the wireless internet network through the interface unit 110.

Then, it is checked whether a predetermined performance indicator is achieved for each network based on the performance parameter received through the interface (S260-S270). Preferably, the performance confirmation unit 120 receives a performance parameter from the lower network device 200 and is assigned to each network through a calculation including a mathematical method for satisfying each network operation target based on the informed information. Check if performance indicators have been achieved. That is, the performance checking unit 120 performs user-side performance parameters including the user configuration, the terminal type, the charge level according to the terminal type, and the required throughput, the cell type, the frequency load, and the frequency quality of service. Receives the performance parameters of the network side including a, and calculates the QoS difference for each network based on the received performance parameters for the user QoS, FA operation efficiency, FA operation revenue, and traffic switching corresponding to the performance indicators designated for each network.

Thereafter, the traffic for each allocated network area is redistributed according to whether the performance indicator is achieved (S280-S300). Preferably, the traffic control unit 130 redistributes traffic to each network in the region based on a calculation result including a mathematical method for satisfying each network operation target based on the information notified from the lower network apparatus 200. If necessary, reassign network resources (frequency).

As described above, according to the multi-tier network-based resource management method according to the present invention, there is provided a method for load balancing between macro-micro cells and traffic distribution between a cellular system and a WLAN system. Providing a solution to the mobility of data congestion in multi-tiered networks can be provided.

Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above-described embodiments, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the following claims. Anyone skilled in the art will have the technical idea of the present invention to the extent that various modifications or changes are possible.

According to the multi-tiered network-based resource management method according to the present invention, the existing technology in that it provides a load balancing between the macro-micro cells and traffic distribution between the cellular system and the Wi-Fi system. It is an invention that has industrial applicability because the possibility of marketing or sales of the applied device is not only sufficient for the use of related technology but also practically obvious as it goes beyond the limit of.

100: upper network device
110: interface unit 120: performance confirmation unit
130: traffic control unit
200: subnetwork device

Claims (14)

An interface unit for forming an interface with a lower network area in a multi-tiered network in which one or more network areas overlap;
A performance checking unit for confirming whether a predetermined performance index has been achieved for each network based on performance parameters received from a lower network through the interface; And
And a traffic control unit for allocating traffic for each network area and redistributing the traffic for each allocated network area according to whether the performance index is achieved. The method of claim 1,
The interface unit includes:
And forming an interface with the lower network including a micro type cellular network and a wireless internet network. The method of claim 2,
The interface unit includes:
And forming the interface by matching with an access point located in the lower network. The method of claim 2,
The performance detection unit,
And receiving the performance parameter according to a setting cycle from each lower network operating the network based on the allocated traffic. The method of claim 1,
The traffic control unit,
The upper network device, characterized in that for resetting the frequency resources for each network in accordance with whether the performance indicator has been achieved. A traffic allocating step of allocating traffic for each network area by a higher network device in a multi-tier network in which one or more network areas overlap;
A network operation step in which a lower network device located in the multi-tier network operates each network based on traffic allocated from the upper network device;
A parameter transmitting step of transmitting, by the lower network apparatus to a higher network apparatus, predetermined performance parameters detected according to network operation; And
And a traffic control step of redistributing the traffic based on the performance parameter received by the upper network device through an interface between networks. The method according to claim 6,
The parameter transmission step,
And transmitting the detected performance parameter through the interface according to a setting cycle. The method according to claim 6,
The traffic control step,
A performance sensing step of confirming whether a predetermined performance index has been achieved for each network based on the performance parameter; And
And a traffic redistribution step of redistributing the traffic according to the allocated network area according to whether the performance indicator is achieved. The method of claim 8,
The traffic control step,
And a resource reallocation step of reconfiguring frequency resources for each network according to whether the performance indicators are achieved. A traffic allocating step of allocating traffic for each network area in a multi-tiered network in which one or more network areas overlap;
A parameter receiving step of receiving a predetermined performance parameter from a lower network through an interface with a lower network area;
A performance checking step of confirming whether a predetermined performance index has been achieved for each network based on the performance parameters received through the interface; And
And a traffic control step of redistributing the traffic for each allocated network area according to whether the performance indicator is achieved. The method of claim 10,
The parameter receiving step,
And receiving the performance parameter through an interface with the subordinate network including a micro type cellular network and a wireless internet network. The method of claim 11,
The parameter receiving step,
And receiving the predetermined performance parameter through the interface through matching with an access point (AP) located in the lower network. The method of claim 12,
The parameter receiving step,
And receiving the performance parameter according to a setting cycle from each lower network operating the network based on the allocated traffic. The method of claim 10,
The traffic control step,
Multi-level network-based resource management method, characterized in that for resetting the frequency resources for each network in accordance with whether the performance indicator has been achieved.

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