KR20000034155A - Method for reallocating resource using user traffic monitoring function in mobile exchange - Google Patents

Abstract

PURPOSE: A method for reallocating resource using user traffic monitoring function in the mobile exchange is provided to utilize relevant network resources efficiently by reallocating network resources according to the result of measurement, after measuring the amount of user traffic used actually with monitoring the user traffic during a predetermined time. CONSTITUTION: UPC(Usage Parameter Controller) measures actually used user traffic amount and transmits the measured user traffic amount(Real_Traffic_Data ), real-time traffic data, to a resource management. The resource management means transfers a desired signal(ReNego_Req) to the access control means, according to the real-time traffic data transmitted from the UPC. Accordingly, if the UPC setup for the reallocation of network resources is requested to the UPC(UPC_Parameter_Reg), the resource management means transfers the response(UPC_Parameter_Ack) to the access control means.

Description

Resource Reallocation Method Using User Traffic Monitoring in Mobile Switching System

The present invention relates to resource reallocation using a user traffic monitoring function in a mobile switching system. In particular, the present invention relates to resource allocation according to the measured traffic amount by monitoring user traffic for a predetermined time in a state in which call setup is completed and network resources are allocated. The present invention relates to a resource reallocation method using a user traffic monitoring function in a mobile switching system in which a plurality of users can efficiently use corresponding network resources.

Currently, the International Telecommunication Union-Telecommunication Standardization Sector (ITU-T) provides the service of the third generation mobile communication system IMT-2000 (International Mobile Telecommunication-2000). The method under discussion for matching between the Radio Network Controller and the Mobile Switching System is based on Q.2931 (Wideband Telecommunications User-Network Interface Layer 3 Protocol).

Admission control method for resource allocation between the wireless network control station and the mobile switching system under discussion based on Q.2931 is performed in the call setup process through the signal path between the wireless network control station and the mobile switching system. When the subscriber matched with the wireless network control station requests the mobile switching system a predetermined amount of traffic to use using the PCR (Peck Cell Rate) included in the setup message, the mobile switching system checks the internal network resources. After checking whether the resource allocation is possible, the network resource is allocated as much as the traffic amount required by the subscriber.

However, since this resource allocation method is performed using PCR, most subscribers, that is, users who use network resources, have a problem in that they monopolize a larger amount of network resources than those actually needed. When only a few users use the ATM link, which is the traffic path between the wireless network control station and the mobile switching system using an Asynchrounous Transfer Mode (ATM) exchange, each user can always use as many resources as they want through call setup. However, in the current environment in which multiple ATM users share a single ATM link at the same time, when using the resource allocation method as described above, only some users monopolize network resources, thereby simultaneously providing services to multiple users. It becomes impossible.

That is, in the environment of International Mobile Telecommunication-2000 (hereinafter referred to as 'IMT-2000') in which a plurality of users share and use network resources between the wireless network control station and the mobile switching system When using an ATM switch as a switching system, the matching between the radio network control station and the mobile switching system takes place over the ATM link, which must be serviced for multiple subscribers that match the radio control station. The problem is that the ATM link bandwidth is not sufficient for multiple subscribers to use at the same time.

In addition, appropriate PCR values are not provided for the various services that IMT-2000 defined in I.210 and I.211 (Wideband Telecommunications Network Service Perspective) provide unreasonable resource allocation to users. Too much or too little can be allocated.

On the other hand, when using a single ATM link shared by a large number of users, how to improve the resource use efficiency by classifying according to the quality of service and by allocating the same resources in each class, several papers have been proposed, These papers are divided into a number of classes to set the network resources for each class, and when a user requests a resource, the user checks which class is included in the user to allocate the resources set in the class, It is difficult to expect the effect because the class is not precisely defined, and even if the service belongs to the same class, network resources, that is, user traffic volume, vary greatly according to the user's environment, causing a waste of network resources. do.

As described above, in the conventional mobile switching system, the network resources corresponding to the traffic amount required by the user are allocated in the call setup process, and are continuously used until the call is released. In the case of a multimedia service, the traffic amount is accurately estimated. Since it is difficult to do so, allocating network resources corresponding to the amount of traffic required by a user may be a waste of resources.

That is, conventionally, when a call is set up, a network resource required by a user is allocated based on the maximum traffic volume, and the corresponding network resource is used by the corresponding user until the call ends. In this case, an incorrect traffic estimate and a uniform traffic By determining the maximum traffic volume and allocating network resources based on the recommendation, there is a problem that it is not suitable for a large number of users to share the limited resources between the wireless network control station and the mobile switching system.

The present invention is to solve the problems described above, the purpose of the measurement, after measuring the user traffic for a predetermined time after the call setup for the user in the mobile switching system to measure the actual amount of user traffic, and then measure By reallocating the network resources according to the result, it is possible to efficiently use the network resources and to provide the optimum service quality to the user.

Features of the present invention for achieving the above object comprises the steps of: allocating a predetermined network resource with reference to the PCR of the setup message when the call setup request of the user; Monitoring user traffic for a predetermined time using a UPC parameter to measure the amount of user traffic actually used; And reallocating network resources for the user according to the measured result.

On the other hand, the process of reallocating the network resources for the user, the step of confirming whether the user traffic amount measured for a predetermined time exceeds a predetermined tolerance traffic amount; Ascertaining that network resources corresponding to the user traffic amount can be reassigned if the result of the check exceeds a predetermined tolerance traffic amount; The method may further include reallocating a network resource corresponding to the user traffic amount when reallocation of the network resource is possible.

1 is a conceptual diagram of a mobile switching system for network resource reallocation according to the present invention.

2 is a diagram illustrating a call establishment process between a wireless network control station and a mobile switching system according to the present invention.

3 is a diagram illustrating a resource reallocation process using a user traffic monitoring function in a mobile switching system according to the present invention.

Explanation of symbols on the main parts of the drawings

RNC: Radio Network Controller

MSC: Mobile Switching Center

11 access control means 12 resource management means

13-1 ~ 13-n: UPC (Usage Parameter Controller)

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

A mobile switching system (MSC) for reallocating network resources according to the present invention has an access control means 11, a resource management means 12, and a plurality of UPCs as shown in FIG. Parameter Controller; 13-1 to 13-n).

The access control unit 11 establishes a call through a predetermined signal path (VPI = 0 / VCI = 5) according to a standardized interface standard between the radio network controller (RNC) and the mobile switching system (MSC). In order to perform the release function, resource management means 12 requests resource allocation and reallocation, and transmits traffic path information (VPI / VCI) determined during the call setup process to the radio network controller (RNC). do.

The resource management means 12 performs network resource management functions such as allocating, reallocating, and releasing network resources according to the resource allocation and reallocation request of the access control means 11.

Each UPC 13-1 to 13-n monitors user traffic for a predetermined time according to the UPC parameter request of the resource management unit 12, measures the amount of traffic actually used by each user, and then measures the amount of user traffic measured. When the predetermined tolerance traffic amount is exceeded, information on the user traffic amount measured by the resource management means 12 is transmitted.

Referring to the resource reallocation operation using the user traffic monitoring function in the mobile switching system (MSC) configured as described above is as follows.

First, a call setup process according to a standardized interface standard between a radio network controller (RNC) and a mobile switching system (MSC) will be described with reference to FIG. 2.

The access control means 11 of the mobile switching system (MSC) receives a setup message (SETUP) transmitted from the radio network controller (RNC) as a user matched to the radio network controller (RNC) requests call setup. Then, the access control means 11 requests (Reso_Alloc_Req) the allocation of network resources to the resource management means 12 with reference to the contents of the received setup message, that is, PCR.

Accordingly, the resource management means 12 determines whether the requested resource allocation is possible, transmits a response (Reso_Alloc_Req) to the access control means 11, and if the resource allocation is successfully performed, the corresponding UPC 13- When the UPC parameter setting request (UPC_Parameter_Req) is requested to 1 to 13-n, the corresponding UPCs 13-1 to 13-n transmit a response (UPC_Parameter_Ack) to the access control means 11 side.

At this time, the access control means 11 completes the call setup with the radio network control station (RNC) (CONNECT, CONNECT ACK), the corresponding UPC (13-1 ~ 13-n) is the radio network control station (RNC) The user traffic transmitted through the traffic path is monitored from the network to perform the operation for reallocating the corresponding network resource. The resource reallocation process will be described with reference to FIG.

The UPCs 13-1 to 13-n monitor the actual user traffic transmitted from the radio network controller (RNC) for a predetermined time using the UPC parameter and measure the actual amount of user traffic used. When the measured user traffic amount exceeds the predetermined tolerance traffic amount, the measured user traffic amount, that is, real-time traffic data (Real_Traffic_Data) is transmitted to the resource management means 12.

Accordingly, the resource management means 12 is capable of reallocating network resources by transmitting a predetermined signal ReNego_Req to the access control means 11 as real-time traffic data is transmitted from the UPCs 13-1 to 13-n. The access control means 11 checks its own user information, and if the resource reallocation is possible for the user, the access control means 11 transmits a response signal (ReNego_Ack) to the resource management means 12 to reallocate the network resource. Will be allowed.

Accordingly, when the resource management means 12 requests UPC parameter setting for reallocation of network resources to the UPCs 13-1 to 13-n (UPC_Parameter_Req), the corresponding UPCs 13-1 to 13-n In response to the response UPC_Parameter_Ack to the access control means 11, the network resource reassignment operation for the user is terminated.

As described above, in the present invention, the user does not continue to use the allocated network resources when establishing a call, but measures the user traffic amount actually used online for a predetermined time using the UPC parameter inside the network, and then measures the user. By reallocating the network resources based on the traffic volume, it is possible to continuously provide the optimum quality of service for the user and reduce unnecessary waste of the network resources.

As described above, according to the present invention, after the call setup for the user is completed in the mobile switching system, the user traffic is monitored for a predetermined time, the actual amount of user traffic is measured, and then the network resources are reassigned according to the measured result. Therefore, efficient use of the network resources becomes possible, and it is possible to provide the optimum quality of service to the user.

Claims (2)

Allocating a predetermined network resource with reference to PCR of a setup message when a user sets up a call; Monitoring user traffic for a predetermined time using a UPC parameter to measure the amount of user traffic actually used; And reallocating the network resource for the user according to the measured result. The method of claim 1, The process of reallocating network resources for the user includes: checking whether the user traffic amount measured during a predetermined time exceeds a predetermined tolerance traffic amount; Ascertaining that network resources corresponding to the user traffic amount can be reassigned if the result of the check exceeds a predetermined tolerance traffic amount; And reassigning the network resources corresponding to the user traffic amount when the network resources are reallocated as a result of the checking.