KR100749374B1 - Data Reduction Time Reduction System and Method Using LMS in Wireless Internet Network - Google Patents

Abstract

The present invention relates to a system and method for reducing data incoming time in a wireless Internet network, and more particularly, by transmitting a call request message from an LMS (Location Management Server, WiBro subscriber location management server) to an ACR (Access Control Router). The present invention relates to a data receiving time reduction system using LMS in a wireless Internet network and a method thereof suitable for shortening a packet reception time for an Internet subscriber.

According to the present invention, when a packet is transmitted to a wireless Internet subscriber, the packet reception time for the wireless Internet subscriber can be shortened by transmitting a call request message from the LMS to the ACR prior to transmission to set a network entry with the wireless Internet subscriber in advance. It is effective.

Description

System and method for receiving time reduction using LMS in wireless internet network and method thereof

1 is a block diagram of a general wireless Internet network.

2 is a flowchart illustrating a data receiving system and its operation in a conventional wireless Internet network.

3 is a flowchart illustrating a data receiving method in a conventional wireless Internet network.

4 is a block diagram of a system for shortening a data reception time using an LMS in a wireless Internet network according to an embodiment of the present invention.

5 is a flowchart illustrating a data receiving time reduction system using LMS in a wireless Internet network and its operation according to an embodiment of the present invention.

6 is a flowchart illustrating a method of shortening a data incoming time using an LMS in a wireless Internet network according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: PSS 20: RAS

30: ACR 40: LMS

41: control unit 42: location management unit

43: data incoming detection unit 44: message generation unit

45: call request message transmission unit 50: incoming server (Core Data network)

The present invention relates to a system and method for reducing data incoming time in a wireless Internet network, and more particularly, by transmitting a call request message from an LMS (Location Management Server, WiBro subscriber location management server) to an ACR (Access Control Router). The present invention relates to a data receiving time reduction system using LMS in a wireless Internet network and a method thereof suitable for shortening a packet reception time for an Internet subscriber.

In general, wireless Internet (Wireless Broadband, WiBro, WiBro) uses a variety of wireless Internet (WiBro) terminals such as handsets, notebooks, personal digital assistants (PDAs), or smartphones to provide high-speed wireless Internet access anywhere, anytime, even when stationary and mobile. Say the service available. This is an IP (Internet Protocol) based wireless data system having up-down asymmetric transmission characteristics using an orthogonal frequency division multiple access / time division duplex (OFDMA / TDD) wideband wireless transmission technology.

The domestic WiBro commercial service began on June 30, 2006, and various Wi-Bro terminals and killer applications are expected to be released in the future.

In addition, Voice over Internet Protocol (VoIP) is expected to be introduced in wireless Internet networks.

1 is a block diagram of a general wireless Internet network.

As shown in the figure, a PSS (Portable Subscriber Station) that processes inputs and outputs that allow a user to process information in a wireless Internet network, various functions necessary for providing wireless Internet services, and various technical functions that conform to wireless Internet standards. Terminal) 10; It exists between the PSS 10 or the Access Control Router (ACR) 30, collects data from the PSS 10 via a radio path, and transmits the data to the ACR 30, and from the ACR 30. A RAS (Radio Access Station) 20 for distributing data to each PSS 10; ACR that connects the RAS 20 to the Internet network or various servers, performs a router function for transferring data between the RAS 20 and the Internet network, and controls a service and mobility for a wireless Internet subscriber. Control station) 30; A LMS (Location Management Server, WiBro Subscriber Location Management Server) 40 for managing the latest location of the PSS 10 serving as the subscriber terminal in association with the ACR 30; And a destination server 50 that forms a core data network as a data destination server interworking with the LMS 40.

Thus, the PSS 10 performs a wireless Internet wireless access processing function, an IP-based service access function, a terminal or user authentication and security function, etc. to access and transmit data through the wireless Internet network.

In addition, the RAS 20 has a wireless Internet wireless access processing function for exchanging data with the PSS 10, a radio resource management and control function for efficiently using limited resources, and a mobility support function for providing services seamlessly on the go. It performs the function of providing QoS (Quality of Service) to maintain stable service quality and overall control and management of equipment.

In addition, the ACR 30 has a subscriber session management function for managing a subscriber's connection state and information, a location registration and handover control function according to a subscriber's movement, and a mobility management function for supporting IP mobility in a wireless network ( IP mobility function when moving between ACR), service information provision function (subscriber information is linked with server) that provides service profile information for each subscriber to RAS 20, IP for data and control traffic between subscriber station and network element Authenticates subscribers by interworking with routing function and authentication server (authentication, authorization, accounting, AAA), performs authentication and billing function to create and deliver billing information about service use to billing server, and incoming service such as VoIP voice service. Paging (paging) control function required for provision may additionally be provided.

In addition, the LMS 40 operates in conjunction with the ACR 30 to manage the latest location of the PSS 10 serving as a subscriber station.

In addition, the destination server 50 is a data destination server interworking with the LMS 40.

Therefore, the PSS 10 supports an idle mode to store a terminal battery and system resource, and the PSS 10, which is an idle mode, periodically searches for a wireless Internet network and receives a packet to come to itself. Check if it is. In this case, when there is no packet to be received by the PSS 10, the PSS 10 continuously doubles the cycle of searching for the network, so that the PSS 10, which has been in the idle mode for a long time, may take a long time to receive a call. This is according to the IEEE802.16e standard.

2 is a flowchart showing a data receiving system and its operation in a conventional wireless Internet network, and FIG. 3 is a flowchart showing a data receiving method in a conventional wireless Internet network.

As shown in this, if there is no use packet of the subscriber in the PSS 10 for a predetermined time step to enter the idle mode and check whether there is a packet to be transmitted to itself (ST1 ~ ST5); If there is a packet to be transmitted to the PSS 10, the destination server 50 forwards the packet to the ACR 30, and the ACR 30 sends an N / W (Network) re-entry of the PSS 10 that is the idle mode subscriber. And performing packet forwarding to the PSS 10 (ST6 to ST10).

So, first, N / W entry in the PSS (10) terminal (ST1).

At this time, the ACR 30 transmits subscriber location information (the ACR number where the subscriber is located) to the LMS 40 by LOC_UP / RES (ST2).

If there is no use packet of the subscriber for a certain time, the PSS 10, which is a terminal, sends a DREG_REQ message, which is a Deregistration Request (IEEE802.16e MAC) message to RAS / ACR to enter idle mode. Transmit (ST3).

The RAS / ACR manages the subscriber in idle mode, transmits a DREG_CMD message, which is a Deregistration Command (IEEE802.16e MAC), to the PSS 10, and the terminal PSS 10 Receiving the DREG_CMD and enters the idle mode (idle mode) (ST4).

The ACR 30 then informs the LMS 40 that the subscriber has entered idle mode. Thereafter, the PSS 10 scans N / W (Network) according to its paging listening interval and checks whether there is a packet to be transmitted to itself.

When the packet arrives at the corresponding subscriber, the destination server 50 as the core data network inquires the subscriber location information to the LMS 40 to obtain the location information of the ACR 30 where the subscriber is located (ST6).

The destination server 50, which is the core data network, forwards the packet to the corresponding ACR 30 (ST7).

The ACR / RAS broadcasts a paging advertisement (802.16e) message for N / W (Network) re-entry of the PSS 10, which is the corresponding idle mode subscriber (ST8). .

Then, the PSS 10 receives a paging advertisement message of the RAS 20 in its paging listening interval and performs network (N / W) re-entry (ST9). ).

The ACR 30 forwards the packet received from the terminating server 50, which is the core data network, to the PSS 10 via the RAS 20 (ST10).

However, at this time, if the subscriber is in ping pong or shadow area in the boundary area of the ACR 30, the subscriber may not receive a paging advertisement message and may take a long time to receive a packet.

In the wireless Internet network, the LMS (Location Management Server) 40 will be introduced for subscriber location management. The time that can occur in packet reception using the LMS when the packet receiving service (PTT, VoIP, etc.) is introduced in the wireless Internet network. There is a need to resolve the delay.

Accordingly, the present invention has been proposed to solve the above-mentioned general problems, and an object of the present invention is to transmit a call request message from an LMS to an ACR, thereby reducing a packet reception time for a wireless Internet subscriber. To provide a data receiving time reduction system using LMS and a method therefor.

In order to achieve the above object, a data reception time reduction system using an LMS in a wireless Internet network according to an embodiment of the present invention is connected to an LMS through a data network and is connected to an LMS. A destination server for transmitting a packet to a PSS based on a location information inquiry request and location information received from the LMS; Process location information management for the PSS in cooperation with ACR, provide location information according to the location information inquiry request of the PSS input from the destination server, and request a call to the PSS to the ACR when transmitting a packet to the PSS. An LMS for performing message transmission; An ACR connected to the RAS to transmit and receive a message to the PSS, and transmit a mobile call advertisement message to the PSS in response to a call request message received from the LMS; A RAS for establishing a packet transmission path between the PSS and the destination server by performing a connection connection with the PSS through a wireless access path and performing a network entry with the PSS; And a PSS that performs a network entry with the RAS in response to receiving the mobile call advertisement message, and receives a packet from the destination server after the network entry is completed.

In addition, in order to achieve the above object, a method of shortening the data incoming time using the LMS in the wireless Internet network according to an embodiment of the present invention, when the data incoming request for the idle PSS is input to the PSS CLAIMS 1. A method for shortening data incoming time using an LMS in a wireless Internet network for shortening a data incoming time, comprising: a first step of receiving, by the LMS, a location information inquiry request for the PSS from a destination server; Detecting, by the LMS, an idle state of the PSS in response to the location information inquiry request, providing location information to the destination server, and generating and transmitting a call request message for the PSS to the ACR; A third step of the ACR receiving the call request message from the LMS, generating a call advertisement message and transmitting the call advertisement message to the PSS; A fourth step of performing, by the PSS receiving the call advertisement message, a network reentry procedure for receiving data; And a fifth step of receiving, by the PSS, data from the destination server after establishing the network reentry.

Hereinafter, an embodiment according to the present invention, a system for shortening a data reception time using an LMS in a wireless Internet network, and a method thereof will be described with reference to the accompanying drawings.

4 is a block diagram of a system for reducing data incoming time using an LMS in a wireless Internet network according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating data using an LMS in a wireless Internet network according to an embodiment of the present invention. 6 is a flowchart illustrating a receiving time reduction system and an operation thereof, and FIG. 6 is a flowchart illustrating a method of reducing a data receiving time using an LMS in a wireless Internet network according to an embodiment of the present invention.

Thus, the data receiving time reduction system using the LMS in the wireless Internet network according to an embodiment of the present invention is connected to the LMS 40 through the data network, when the packet transmission to the PSS 10, to the LMS 40 A destination server 50 that performs packet transmission to the PSS 10 based on the subscriber location information inquiry request and the location information received from the LMS 40; Process the location information management for the PSS 10 in conjunction with the ACR (30), the position according to the location information inquiry request of the PSS (10) input from the destination server 50, when transmitting the packet to the PSS (10) An LMS 40 for providing information and transmitting a call request message to the PSS 10 to the ACR 30; ACR connected to the RAS 20 to transmit and receive a message to the PSS 10 and transmit a Mobile Page Advertisement message to the PSS 10 in response to the call request message received from the LMS 40. 30; A RAS 20 which establishes a connection connection with the PSS 10 through a wireless access path and performs a network entry with the PSS 10 to establish a packet transmission path between the PSS 10 and the destination server 50; And a PSS 10 that performs a network entry with the RAS 20 in response to receiving a mobile page advertisement message and receives a packet from the destination server 50 after completion of the network entry. do.

The destination server may be a push-to-task server (PTT server) or a data push server that performs data transmission to the PSS 10.

In addition, the data incoming time reduction system using the LMS in the wireless Internet network according to another embodiment of the present invention, for reducing the data incoming time in the wireless Internet network by interworking with the ACR 30 and the destination server 50 A LMS 40, a location manager 42 which receives location information of the PSS 10 from the ACR 30 and stores and manages location information of the corresponding PSS 10; A data call detection unit 43 for detecting whether a data call request is sent to the PSS 10 according to the idle state of the PSS 10 in response to a request for providing location information for the PSS 10 input from the destination server 50; A message generator 44 which generates a page request (PAG_REQ) message to the PSS 10 when a data incoming request to the PSS 10 is detected as a result of the data reception detector 43; A call request message transmitter 45 for transmitting a call request (PAG_REQ) message generated by the message generator 44 to the ACR 30; And a controller 41 for controlling operations of the location manager 42, the data reception detector 43, the message generator 44, and the call request message transmitter 45.

Meanwhile, the method of shortening the data incoming time using the LMS in the wireless Internet network according to an embodiment of the present invention, when a data incoming request for the idle PSS 10 is input, sets the data incoming time to the PSS 10. CLAIMS 1. A method for shortening a data incoming time using an LMS 40 in a wireless Internet network for shortening, comprising: a first step of receiving, by the LMS 40, a location information inquiry request for the PSS 10 from a destination server (ST16); The LMS 40 detects an idle state of the PSS 10 in response to the location information inquiry request, provides location information to the destination server 50 and a call request (PAG_REQ) message to the PSS 10 to the ACR 30. Generating and transmitting a second step (ST17); A third step ST18 in which the ACR 30 that receives the call request (PAG_REQ) message from the LMS 40 generates a page advertisement message (PAG_ADV) and transmits it to the PSS 10 (ST18); A fourth step (ST19) in which the PSS 10 receiving the call advertisement (PAG_ADV) message performs a network reentry procedure for receiving data; And a fifth step ST20 in which the PSS 10 receives data from the destination server 50 after the network reentry is established.

Also, the second step may be performed by the LMS 40 including transmitting the call request (PAG_REQ) message to the adjacent ACR by the corresponding ACR 30 together with the ACR 30 to which the PSS 10 belongs. do.

Referring to the accompanying drawings, a preferred embodiment of the data receiving time reduction system and the method using the LMS in the wireless Internet network according to the present invention configured as described in detail as follows. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or precedent of a user or an operator, and thus, the meaning of each term should be interpreted based on the contents throughout the present specification. will be.

First, the present invention is to reduce the packet reception time for the wireless Internet subscriber by transmitting a call request message from the LMS to the ACR.

So, in order to operate according to the present invention, the ACR 30 and the LMS 40 must perform the added function as follows, unlike the conventional operation.

That is, the LMS 40 manages the latest location of the subscriber's PSS 10 in association with the ACR 30. This is performed by the location manager 42. Thus, when the location management unit 42 transmits the call request (PAG_REQ) message to the ACR 30, the location manager 42 determines the latest location of the subscriber so that the call request message can be transmitted to the ACR 30 at the latest location of the subscriber or in an adjacent boundary area. Manage.

In addition, upon request of subscriber data, the LMS 40 simultaneously transmits a corresponding subscriber call request (PAG_REQ) message to the ACR 30 where the subscriber is located and the ACR 30 of the adjacent boundary area. This determines whether there is an incoming request in the data incoming detection unit 43. In addition, if it is determined that there is an incoming request, the message generating unit 44 generates a call request message, and the call request message transmitting unit 45 manages the ACR 30 of the subscriber latest location managed by the subscriber latest location management unit 41. ) And the call request message to the ACR 30 in the adjacent boundary region of the latest location.

The ACR 30 notifies the LMS 40 of the subscriber location information (including the ACR IP address) when registering the wireless Internet subscriber location.

In addition, when the ACR 30 receives the call request message from the LMS 40, the ACR 30 transmits a 'Mobile Page Advertisement (PAG-ADV)' message (IEEE802.16e message) to the corresponding subscriber, and transmits the PSS (10). ) Allows network entry to be executed in advance.

That is, the ACR 30 determines whether to register the subscriber location. If it is determined that the subscriber location registration is performed, the latest location of the subscriber is managed. In this way, the subscriber's latest location must be managed so that when the network entry is implemented in advance, the corresponding ACR 30 of the PSS 10 and the ACR 30 of the adjacent boundary area can be searched to transmit a mobile call advertisement message. In addition, the ACR 30 receives the page request message from the call request message transmitter 43 of the LMS 40 and receives it, and at the same time, the mobile call advertisement (PAG_ADV) is transmitted to the PSS 10. By sending a message, the terminal can execute the network entry in advance.

The operation of the present invention will be described in more detail with reference to FIGS. 5 and 6 as follows.

First, the PSS 10, which is a terminal, performs a network entry (N / W entry) (ST11).

At this time, the PSS 10 transmits its subscriber location information (the ACR number where the subscriber is located) to the LMS 40 via the RAS 20 and the ACR 30. To this end, the ACR 30 and the LMS 40 exchange LOC_UP / RES messages (ST12).

If there is no use packet of the subscriber for a certain time, the PSS 10 sends a DREG_REQ message, which is a Deregistration Request message, to the ACR 30 via the RAS 20 to enter idle mode. 16e MAC message) (ST13).

Then, the RAS 20 and the ACR 30 manage the subscriber's PSS 10 in idle mode, and give the PSS 10 a DREG_CMD (IEEE802.16e MAC), which is a deregistration command. send. Accordingly, the PSS 10 as the terminal receives the DREG_CMD message and enters an idle mode (ST14).

The ACR 30 then exchanges a LOC_UP / RES message with the LMS 40 to notify the LMS 40 that the subscriber's PSS 10 has entered idle mode (ST15).

Thereafter, the terminal PSS 10 scans the network N / W according to its paging listening interval and checks whether there is a packet to be transmitted to itself.

Thus, when a packet arrives at the subscriber's PSS 10, the destination server 50, which is the core data network, queries the LMS 40 for location information of the ACR 30 where the subscriber is located. At this time, the LMS 40 recognizes that the PSS 10 of the subscriber is in the idle mode and transmits the location information of the subscriber to the destination server 50 on the core side (ST16).

At the same time, the LMS 40 transmits a PAG_REQ message, which is a paging request message, to the ACR in which the subscriber is located (which may also include a neighboring ACR) (ST17).

The ACR 30 that receives the PAG_REQ message, which is a paging request message, transmits a PAG_ADV message, which is a paging advertisement message, to the PSS 10 of the subscriber via the RAS 20 (ST18). . The PAG_ADV message uses a 'Mobile Page Advertisement' message among IEEE802.16e messages.

Then, the PSS 10 of the subscriber performs network reentry (N / W re-entry) with the RAS 20 to prepare to receive the packet immediately in the process of forwarding the packet (ST19).

Then, the incoming server 50, which is the core data network, can directly perform packet forwarding to the PSS 10 that has previously performed network reentry (ST20).

As such, the present invention shortens the packet reception time for the wireless Internet subscriber by transmitting a call request message from the LMS to the ACR.

Although the above has been described as being limited to the preferred embodiment of the present invention, the present invention is not limited thereto and various changes, modifications, and equivalents may be used. Therefore, the present invention can be applied by appropriately modifying the above embodiments, and it will be obvious that such an application also belongs to the scope of the present invention based on the technical idea described in the following claims.

As described above, the data receiving time reduction system and method using the LMS in the wireless Internet network according to the present invention, when transmitting a packet to a wireless Internet subscriber, by transmitting a call request message from the LMS to the ACR prior to transmission wireless Internet By setting the network entry with the subscriber in advance, there is an effect that the packet reception time for the wireless Internet subscriber can be shortened.

Claims (5)

LMS (Location Management Server) in a wireless Internet network that provides high-speed data service to a PSS (mobile communication terminal) that is stationary or slow moving, including RAS (base station) and ACR (control station) for access to the IP network. As a data receiving time reduction system using A terminating server connected to the LMS through a data network and performing a packet request to the PSS based on the subscriber location information inquiry request to the LMS for packet transmission to the PSS and the location information received from the LMS; Manages the location information for the PSS in conjunction with the ACR, and if the PSS location information inquiry is requested from the destination server, providing the location information of the PSS to the destination server and the call request for the PSS to the ACR An LMS for performing message transmission; An ACR connected to the RAS to transmit / receive a message to the PSS and to transmit a mobile call advertisement message to the PSS upon receiving a call request message from the LMS; A RAS for performing a network entry with the PSS through a wireless access path to establish a packet transmission path between the PSS and the destination server; And A PSS that performs a network entry with the RAS in response to receiving the mobile call advertisement message, and receives a packet from the called server after completing the network entry; Data receiving time reduction system using LMS in a wireless Internet network configured to include. The method according to claim 1, The incoming server, A push-to-task server (PTT server) or a data push server for performing data transmission to the PSS, data receiving time reduction system using LMS in a wireless Internet network. Data transmission to the PSS in a wireless Internet network including a RAS (base station) and an ACR (control station) for access to an IP network and providing high-speed data service to a PSS (mobile communication terminal) that is stationary or slow moving. An LMS (Location Management Server) for shortening a data receiving time through interworking with an incoming server and the ACR, A location manager which receives location information of the PSS from the ACR and stores and manages location information of the PSS; A data incoming detection unit for detecting and outputting a data incoming request to the PSS according to an idle state of the PSS in response to a request for providing location information for the PSS input from the incoming server; A message generation unit generating a call request message for the PSS when a data incoming request to the PSS is detected according to the output of the data incoming detection unit; A call request message transmitter for transmitting the call request message generated by the message generator to the ACR; And A controller configured to control operations of the location manager, the data reception detector, the message generator, and the call request message transmitter; Data receiving time reduction system using LMS in a wireless Internet network configured to include. Including a RAS (base station) and ACR (control station) for access to the IP network, data transmission to the PSS in a wireless Internet network that provides high-speed data service to a PSS (mobile communication terminal) that is stationary or slow moving. A method of shortening data incoming time using an LMS (Location Management Server) for shortening a data incoming time from an incoming server to an idle PSS, A first step of receiving, by the LMS, a location information inquiry request for the PSS from the destination server; A second step in which the LMS detects an idle state of the PSS in response to the location information inquiry request, provides location information of the PSS to the destination server, and transmits a call request message for the PSS to the ACR; ; A third step of the ACR receiving the call request message from the LMS, generating a call advertisement message and transmitting the call advertisement message to the PSS; A fourth step of the PSS receiving the call advertisement message performing a network entry procedure with the RAS for receiving data; And A fifth step of receiving, by the PSS, data from the called server after establishing the network entry; Method of reducing data incoming time using LMS in a wireless Internet network comprising a. The method according to claim 4, In the second step, And the LMS transmits the call request message to the ACR to which the PSS belongs and to the adjacent ACR of the ACR.

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