KR101639661B1 - System and method for supporting message push service in wireless communication system - Google Patents

Abstract

The present invention relates to a method and system for providing a push service in a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme or an orthogonal frequency division multiple access (OFDMA) scheme. In this case, when a message is received from another network or another messaging server, the messaging server transmits a push service request message to the push server, and the push server transmits the push service request message Transmitting a first push delivery message including a message to be transmitted to the mobile station to a base station when the mobile station operating the push service operates in an active mode; and when the first push transmission message is received , And transmitting a second push transmission message based on a Media Access Control (MAC) layer including a message to be transmitted to the MS to the MS.

Description

[0001] SYSTEM AND METHOD FOR PROVIDING MESSAGE PUSH SERVICE IN A WIRELESS COMMUNICATION SYSTEM [0002] SYSTEM AND METHOD FOR SUPPORTING MESSAGE PUSH SERVICE IN WIRELESS COMMUNICATION SYSTEM [

The present invention provides a system and method for providing a push service in a wireless communication system. In particular, the present invention provides a system and method for transmitting a message using a push service based on a MAC layer in a wireless communication system.

The wireless communication system provides a push service for actively transmitting data to a client by a server without user's manipulation in order to enhance the convenience of a communication service. For example, the push service includes a Wireless Application Protocol (WAP) push service, a HyperText Transfer Protocol (HTTP) push service, and a User Datagram Protocol (UDP) push service.

The WAP push service is designed to provide voice service and is unsuitable for application to a broadband wireless communication network.

The HTTP push service can be applied to a broadband wireless communication network, but a TCP (Transmission Control Procedure) connection must be established between the terminal and the push server for the push service. Accordingly, the HTTP push service has a problem in that a time delay occurs due to the TCP connection setting every time the push service is provided.

The UDP push service has a problem in that, when a firewall exists between the push server and the terminal, transmission of a push message can be blocked, and therefore service provision can not be guaranteed.

A broadband wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme or an orthogonal frequency division multiple access (OFDMA) scheme can not specify a standard for transmitting / receiving data having push characteristics I did. Accordingly, the broadband wireless communication system has a problem that the push message must be transmitted in the same manner as the general data.

Accordingly, it is an object of the present invention to provide a system and a method for providing a push service based on a Media Access Control (MAC) layer in a wireless communication system.

It is another object of the present invention to provide a system and method for transmitting a message using a push service based on a MAC layer in a wireless communication system.

It is another object of the present invention to provide a system and a method for transmitting a short message using a push service based on a MAC layer in an orthogonal frequency division multiplexing wireless communication system.

It is another object of the present invention to provide a system and a method for transmitting a multimedia message using a push service based on a MAC layer in an orthogonal frequency division multiplexing wireless communication system.

According to a first aspect of the present invention, there is provided a method of providing a push service in a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme or an orthogonal frequency division multiple access (OFDMA) scheme, The messaging server transmits a push service request message to the push server when the message is received from another network or another messaging server; and the push server transmits the push service request message to the messaging server, Transmitting a first push delivery message including a message to be transmitted to the MS to the BS when the first push transmission message is received in the active mode; and transmitting, when the first push transmission message is received, A second push transmission message based on a MAC (Media Access Control) layer including the first push transmission message It is characterized by including the step.

According to a second aspect of the present invention, a wireless communication system using an Orthogonal Frequency Division Multiplex (OFDM) scheme or an Orthogonal Frequency Division Multiple Access (OFDMA) scheme for providing a push service, A messaging server for transmitting a push service request message to a push server when the message is received from the messaging server; and a message to be transmitted to the terminal when the messaging server is operating in the active mode, (MAC) layer-based second (MAC) layer including a message to be transmitted to the MS when the first push transmission message is received, and a second push transmission message And a base station for transmitting a push transfer message to the terminal.

As described above, a message can be transmitted using a MAC (Media Access Control) layer-based push service in a wireless communication system, so that a message can be transmitted without establishing a connection in a TCP (Transmission Control Procedure) it is possible to prevent an idle mode terminal from transitioning to an awake mode unnecessarily to receive a message and to transmit a message to an application layer of another service. In addition, the problem of blocking a message in a firewall or a NAT (Network Address Translation) can be solved.

1 is a diagram illustrating a configuration of a wireless communication system for a push service according to the present invention;
2 is a diagram illustrating a registration procedure of a terminal in a wireless communication system according to an embodiment of the present invention;
3 is a diagram illustrating a procedure for providing a push service in a wireless communication system according to an embodiment of the present invention;
4 is a diagram illustrating a procedure for providing a push service in a wireless communication system according to another embodiment of the present invention;
5 is a diagram illustrating a procedure for transmitting a message using a push service in a wireless communication system according to an embodiment of the present invention;
6 is a diagram illustrating a procedure for transmitting a message using a push service in a wireless communication system according to another embodiment of the present invention; and FIG.
7 is a diagram illustrating a configuration of a push transfer message according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, a technique for transmitting a message using a MAC (Media Access Control) layer based push service in a wireless communication system will be described.

In the following description, it is assumed that a wireless communication system uses an Orthogonal Frequency Division Multiplexing (OFDM) scheme or an Orthogonal Frequency Division Multiple Access (OFDMA) scheme.

The wireless communication system is configured as shown in FIG. 1 to provide a push service based on the MAC layer.

1 illustrates a configuration of a wireless communication system for a push service according to the present invention.

1, the wireless communication system 100 includes a messaging server 101, an AAA (Authentication, Authorization, Accounting) server 103, an ASN (Access Service Network) 105, a base station (BS) 107, and a mobile station (MS).

The messaging server 101 controls transmission and reception of messages for the messaging service. That is, when there is a message to be transmitted to the AT 109, the messaging server 101 requests the ASN-GW 105 to push a message to the AT 109 using the push service . At this time, the messaging server 101 authenticates the terminal 109 using the messaging service through the AAA server 103.

The messaging server 101 may directly transmit a message to the terminal 109 using the push service when the message has a large capacity.

The messaging server 101 controls to send and receive a message in cooperation with the system 110 of another communication system using an IWF (InterWorking Function) server as well as another messaging server. For example, the messaging server 101 may be connected to another messaging server 101 using a WM (WiMAX Messaging) 4 interface. Also, the messaging server 101 is connected to an SMSC (Short Message Service Center) / SM (Short Message Service) -GW (GateWay) 111 using a WM6 interface, and a web-based server 113 And is connected to a Multimedia Message Service (MMS) proxy-relay server 115 using a WM3 interface.

The AAA server 103 may include a Subscription Profile Repository (SPR) function for managing authentication and accounting information and managing profile information for each subscriber. Also, the AAA server 103 can manage the security key and the lifetime derived from the initial authentication.

The ASN-GW 105 performs an operation control of the base station and a router function.

In addition, the ASN-GW 105 provides a push service including a push proxy server. For example, when the ASN-GW 105 receives a push request from the messaging server 101, the ASN-GW 105 transmits a message to be transmitted to the terminal 109 using the push service to the base station 107. If the terminal 109 operates in an idle mode, the ASN-GW 105 transmits a paging message to the terminal 109 using a paging control function and a push service, As shown in FIG.

The base station 107 transmits a message provided from the ASN-GW 105 to the AT 109 via a wireless link. In addition, the base station 107 transmits a message received from the AT 109 to the ASN-GW 105 via a wireless link.

The terminal 109 displays a message received from the base station 107 so that the user can confirm the message and transmits the message input by the user to the base station 107.

In the above-described embodiment, the ASN-GW 107 includes a push proxy server and performs a push proxy function.

In another embodiment, the push proxy server may be configured as a separate node separate from the ASN-GW 105.

In the case of transmitting a message using the push service as described above, the terminal must be registered in the messaging server as shown in FIG.

FIG. 2 illustrates a procedure of registering a terminal in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 2, when the terminal 200 performs a handover or a network entry, the terminal 200 requests registration to the messaging server 210 (step 221). At this time, at least one of the telephone number, the IP address, and the MAC address of the terminal 200 is used as its own identifier.

The messaging server 210 stores a profile and a location of the terminal 200 according to a registration request of the terminal 200.

In the above-described embodiment, the messaging server 210 stores the profile and the location of the terminal 200.

In another embodiment, when the terminal 200 performs a handover or a network entry, the AAA server may store the profile and location of the terminal 200.

The following description explains a method for providing a message to a terminal using a push service in a wireless communication system. For example, the wireless communication system transmits a message to a terminal using a ranging response message (RNG-RSP) as shown in FIG.

FIG. 3 illustrates a procedure for providing a push service in a wireless communication system according to an embodiment of the present invention. In the following description, the base station 305 represents at least one base station. That is, the BS 305 may represent one specific BS or a plurality of BSs.

3, when there is a message to be transmitted to the AT 307 operating in the awake mode, the messaging server 301 requests the ASN-GW 303 to push the AP 309 (step 311) ). At this time, the messaging server 301 transmits a push request message (Push_Request) including a message PDU to be transmitted to the AT 307, terminal information, an ASN-GW ID and a return flag to the ASN-GW 303 send. For example, the messaging server 301 may transmit the push request message to the ASN-GW 303 through the AAA server. Here, the message PDU includes an application ID. The application identifier indicates an identifier for identifying an application program to which a message is to be transmitted among application programs included in the terminal 307. [ The return flag indicates whether or not a reply to the push service is required. For example, the push request message may be configured to include information as shown in Table 1 below.

Push Request message Attribute M / O Notes MS Info M Including MS ID (Phone number, MAC ID or IP Address) Transaction ID M Push Request ID ASN-GW ID M Messaging Server ID M Messaging Server ID Return flag O Length M PDU length is variable MSG PDU M Push Message PDU (Packet Data Unit)

The message PDU (MSG PDU) of Table 1 may be configured to include information as shown in Table 2 below.

MSG PDU Attribute M / O Notes applicationID M Application type (e.g., ID for SMS / MMS) MessageLength M Length of SMS or MMS MessageContent M Content of SMS or MMS

The ASN-GW 303 transmits a message to be transmitted to the terminal 307 to the first push transmission message (Push_Deliver I) according to the push request of the messaging server 301 and transmits the message to the base station 305 (step 313) . At this time, the first push transmission message includes a reply flag and a push message PDU. Here, the push message PDU includes an application identifier. For example, the first push transmission message may be configured to include information as shown in Table 3 below.

Push Deliver I message Attribute M / O Notes MS Info M Including MS ID (Phone number, MAC ID or IP Address) BS Info M Including BS ID Return flag O Length M PDU length is variable MSG PDU M Push Message PDU

The BS 305 transmits a second push transmission message (Push Delivery II) including a message to be transmitted to the MS 307 through the MAC layer to the MS 307 (step 315). At this time, the second push transmission message includes a push message PDU and a reply flag. Here, the second push transmission message is configured differently from the first push transmission message. That is, the first push transmission message is transmitted through the wired network, but the second push transmission message is transmitted through the wireless network, so that the first push transmission message is configured differently. For example, the second push transfer message is configured as shown in FIG.

In step 317, the terminal 307 transmits a message received through the second push transfer message provided from the base station 305 to the application program 309 corresponding to the application identifier.

The UE 307 determines whether to transmit a Push_Deliver II ACK message in response to a push flag included in the second push forward message received from the BS 305. That is, when the reply flag is set to be unnecessary for the push service, the terminal 307 does not transmit a response message for the second push transfer message. Meanwhile, if the reply flag is set to be required to be returned to the push service, the terminal 307 transmits a response message for the second push transfer message to the base station 305 (step 319).

Upon receiving the response message for the second push transmission message, the BS 305 transmits a Push_Deliver I ACK for the first push transmission message to the ASN-GW 303 (step 321). For example, the response message for the first push-transfer message may include information as shown in Table 4 below.

Push Deliver I ACK Attribute M / O Notes MS Info M Including MS ID (Phone number, MAC ID or IP Address) BS Info M Including BS ID ASN-GW ID M ASN-GW ID Failure Indication O Result code included (omitted if success)

The ASN-GW 303 transmits a push response message (Push_Response) to the messaging server 301 when the push service for the message to be transmitted to the terminal 307 is successfully performed (operation 323). For example, if the ASN-GW 303 receives the response message for the first push-transfer message from the base station 305, the ASN-GW 303 recognizes that the push service is successful. At this time, the push response message may be configured to include information as shown in Table 5 below.

Push Response Attribute M / O Notes MS Info M Including MS ID (Phone number, MAC ID or IP Address) Transaction ID M Same as Transaction ID when receiving Push Request message Messaging Server ID M Messaging Server ID ASN-GW ID M ASN-GW ID Failure Indication O Result code included (omitted if success)

If there is a message to be transmitted to the terminal 307 operating in the idle mode, the messaging server 301 requests push to the ASN-GW 303 (step 331). At this time, the messaging server 301 transmits a push request message including a message PDU to be transmitted to the terminal 307 and a reply flag to the ASN-GW 303. Here, the message PDU includes an application identifier.

The ASN-GW 303 transmits a paging announcement message in which an action code is set to be pushed to the base station 305 according to a push request of the messaging server 301 (step 333) . At this time, the active code may be omitted in the paging announcement message.

The base station 305 transmits a paging activation message (MOB-PAG_ADV) with the active code set to the push to the terminal 307 (step 335). For example, the paging activation message is configured as shown in Table 6 below. At this time, the BS 305 transmits a paging activation message considering the listening interval of the MS 307.

Syntax Size Notes MOB_PAG-ADV_Message_format () {   Management Message Type = 62 8bits   Num_Paging_Group_IDs 8bits   For (i = 0; i <Num_Paging_Group_IDs; i ++) {     Paging Group ID 16bits   } Push Indication 1bit Indication to Push   if (Push Indication = 1) {     Action Code 3bits 0b000 = No Action Required
0b001 = Perform Ranging to
established location
and ACK message
0b010 = Enter Network
0bxxx = Push     Frame offset 4bits     Reserved 1bit   }   else {     Num_MACs 8bits     For (j = 0; j <Num_MACs; j ++) {       MS MAC Address Hash 24bits       Action Code 3bits       Frame offset 4bits       Reserved 1bit     }   }   padding variable   TLV Encoded Information }

 Here, the paging activation message includes a message format field (MOB_PAG-ADV_Message_format) including configuration information of a message and a push indication field including push service information. At this time, the message format field includes a Management Message Type field including type information of a message, a Num_Paging_Group_IDs field including a number of paging group identifiers, and a terminal 307 And a paging group identifier field (Paging Group ID) including paging group identifier information of the paging group. The push indication field includes an active code field indicating the type of the push service. At this time, the active code field may be omitted.

When the base station 305 provides the push service, the paging activation message has the action code included in the push indication field set to push (0bxxx).

Upon receiving the paging activation message indicating that the active code is set to be pushed, the terminal 307 transmits a ranging request message (RNG-REQ) to the base station 305 in order to receive the message (step 337). At this time, the terminal 307 does not switch to the active mode but transmits a ranging request message to the base station 305 in order to receive a message according to the push service while maintaining the standby mode.

When the ranging request message is received, the base station 305 transmits a location update request message (LU_REQ) to the ASN-GW 303 and informs the ASN-GW 303 of the location of the terminal 307 (Step 339).

The ASN-GW 303 transmits a response message (LU_RSP) of the location update request message to the base station 305 to perform a location update procedure (step 341).

The ASN-GW 303 recognizes that the terminal 307 is connected to the base station 305 when performing the location update procedure for the terminal 307 of the base station 305. Accordingly, the ASN-GW 303 transmits a message to be transmitted to the terminal 307 to the first push transfer message (Push_Deliver I) and transmits the message to the base station 305 (step 343). Here, the first push transmission message includes a reply flag and a push message PDU.

In step 345, the BS 305 transmits a ranging response (RNG-RSP) message to the MS 307 in response to the first push transmission message. At this time, the ranging response message includes a push message PDU and a reply flag.

The terminal 307 transmits the received message through the ranging response message received from the base station 305 to the application program 309 corresponding to the application identifier (step 347).

The terminal 307 determines whether to transmit a response message to the push message PDU according to a reply flag included in the ranging response message provided from the base station 305. That is, when the reply flag is set to be unnecessary for the push service, the terminal 307 does not transmit a response message to the base station 305 for the push message PDU. Meanwhile, if the reply flag is set to be required to be returned to the push service, the terminal 307 transmits a L2 response message (L2 ACK) for the push message PDU to the base station 305 in step 349.

In step 351, the BS 305 transmits a Push_Delivery I ACK message to the ASN-GW 303 in response to the L2 response message.

The ASN-GW 303 transmits a push response message to the messaging server 301 when the push service for the message to be transmitted to the terminal 307 is successfully performed (operation 353). For example, if the ASN-GW 303 receives the response message for the first push-transfer message from the base station 305, the ASN-GW 303 recognizes that the push service is successful.

The ASN-GW 303 transmits a response message of the location update request message and a first push transfer message to the BS 305 in steps 341 and 343.

In another embodiment, the ASN-GW 303 may include the reply flag and the push message PDU in the response message of the location update request message and transmit the reply flag to the base station 305. That is, the ASN-GW 303 may transmit a response message of the location update request message including the contents to be transmitted to the base station 305 through the first push transfer message to the base station 305.

The wireless communication system may transmit a message to the terminal using an L2 transmission message as shown in FIG.

FIG. 4 illustrates a procedure for providing a push service in a wireless communication system according to another embodiment of the present invention. The following description assumes that the terminal 407 operates in a standby mode. If the terminal 407 operates in the active mode, the wireless communication system operates in the same manner as the terminal 307 shown in FIG. 3 operates in the active mode.

4, when there is a message to be transmitted to the AT 407 operating in the idle mode, the messaging server 401 requests push to the ASN-GW 403 (step 411). At this time, the messaging server 401 transmits a push request message (Push_Request) including a message PDU to be transmitted to the terminal 407 and a return flag to the ASN-GW 403. For example, the messaging server 401 may transmit the push request message to the ASN-GW 403 via the AAA server. Here, the message PDU includes an application identifier.

In step 413, the ASN-GW 403 transmits a paging announcement message in which the active code is set to be pushed according to a push request of the messaging server 401, to the BS 405. At this time, the active code may be omitted in the paging announcement message.

In step 415, the BS 405 transmits a paging activation message (MOB-PAG_ADV) having an active code set to a pushed state to the MS 407. For example, the paging activation message is configured as shown in Table 6 below. In this case, the push indication field and the active code field indicating the type of the push service may be omitted in Table 6.

Upon receiving the paging activation message indicating that the active code is set to be pushed, the MS 407 transmits a ranging request message (RNG_REQ) to the BS 405 to receive the paging activation message (step 417). At this time, the terminal 407 does not switch to the active mode but transmits a ranging request message to the base station 405 in order to receive a message according to the push service while maintaining the standby mode.

When the ranging request message is received, the BS 405 transmits a location update request message (LU_REQ) to the ASN-GW 403 to inform the location of the terminal (step 419).

The ASN-GW 403 transmits a response message (LU_RSP) of the location update request message to the BS 405 to perform a location update procedure (step 421).

In step 423, the BS 405 transmits a ranging response (RNG-RSP) message to the MS 407 according to the reception of the location update request message.

The ASN-GW 403 recognizes that the terminal 407 is connected to the base station 405 through the location update request message. Accordingly, the ASN-GW 403 transmits a message to be transmitted to the terminal 407 to the first push transfer message Push_Deliver I, and transmits the message to the base station 405 (step 425). At this time, the first push transmission message includes a reply flag and a push message PDU.

The BS 405 transmits a second push transmission message (Push_Deliver II) including a message to be transmitted to the AT 407 through the MAC layer to the AT 407 (step 427). At this time, the second push transmission message includes a reply flag and a push message PDU. Here, the second push transmission message is configured differently from the first push transmission message. That is, the first push transmission message is transmitted through the wired network, but the second push transmission message is transmitted through the wireless network, so that the first push transmission message is configured differently. For example, the second push transfer message is configured as shown in FIG.

In step 429, the terminal 407 transmits a message received through the second push transfer message received from the base station 405 to the application program 409 corresponding to the application identifier.

The terminal 407 determines whether to transmit a response message for the second push-transfer message according to a reply flag included in the second push-transfer message received from the base station 405. That is, if the reply flag is set to be unnecessary for the push service, the terminal 407 does not transmit the response message for the second push transfer message. Meanwhile, if the reply flag is set to be required to be returned to the push service, the terminal 407 transmits a response message (Push_Deliver II ACK) for the second push transfer message to the base station 405 (step 431 ).

In step 433, the base station 405 transmits a Push_Deliver I ACK message to the ASN-GW 403 in response to the response to the second push transmission message.

The ASN-GW 403 transmits a push response message (Push_Response) to the messaging server 401 when the push service for the message to be transmitted to the terminal 407 is successfully performed (operation 435). For example, if the ASN-GW 403 receives a response message for the first push-transfer message from the base station 405, the ASN-GW 403 recognizes that the push service is successful.

The ASN-GW 403 transmits a response message of the location update request message and a first push transmission message to the BS 405 (steps 421 and 425).

In another embodiment, the ASN-GW 403 may include the reply flag and the push message PDU in the response message of the location update request message and transmit the response message to the base station 405. That is, the ASN-GW 403 may transmit a response message of the location update request message including the contents to be transmitted to the base station 405 through the first push transfer message to the base station 405.

As described above, the wireless communication system can transmit a message to a terminal using a push service based on a MAC layer. Here, the message transmitted to the terminal includes at least one of a short message and a multimedia message. At this time, since the sizes of the short message and the multimedia message are different from each other, the message can be transmitted in different ways. If the size of the message is greater than the size that can be transmitted through the wireless link at one time, the base station may fragment and transmit the message.

When transmitting a short message, the wireless communication system transmits a short message using a push service based on the MAC layer as shown in FIG.

FIG. 5 illustrates a procedure for transmitting a message using a push service in a wireless communication system according to an embodiment of the present invention.

5, if there is a message to be transmitted to the terminal 509 operating in the active mode (step 511), the messaging server 501 obtains the information of the terminal 509 from the AAA server 503 (Step 513).

After that, the messaging server 501 requests push to the ASN-GW 505 (step 515). At this time, the messaging server 501 transmits a message to be transmitted to the terminal 509 in a push request message (Push_Request) to the ASN-GW 505. For example, the messaging server 501 may transmit the push request message to the ASN-GW 505 via the AAA server 503. [

The ASN-GW 505 transmits a message to the AT 509 through the BS 507 using a push service (step 517). For example, in response to a push request of the messaging server 501, the ASN-GW 505 transmits a message to be transmitted to the terminal 509 to the first push transmission message and transmits the message to the base station 507. The base station 507 transmits a message to be transmitted to the terminal 509 to the second push transmission message of the MAC layer and transmits the message to the terminal 509. At this time, the first push transmission message is transmitted through the wired network, but the second push transmission message is transmitted through the wireless network. Accordingly, the first push transmission message and the second push transmission message are configured differently.

The ASN-GW 505 transmits a push response message (Push_Response) to the messaging server 501 in step 519 when the push service for the message to be transmitted to the terminal 509 is successfully performed. For example, if the ASN-GW 505 receives a response message for the first push-transfer message from the BS 507, the ASN-GW 505 recognizes that the push service is successful.

In step 521, the messaging server 501 obtains information on the terminal 509 from the AAA server 503 when there is a message to be transmitted to the terminal 509 operating in the idle mode (step 511).

Thereafter, the messaging server 501 requests push to the ASN-GW 505 (step 523). At this time, the messaging server 501 transmits a message to be transmitted to the terminal 509 in a push request message (Push_Request) to the ASN-GW 505.

The ASN-GW 505 transmits a paging announcement message (Paging_Announce) in which the active code is set to be pushed to the base station 507 according to a push request of the messaging server 501 (step 525). At this time, the active code of the paging announcement message may be omitted.

In step 527, the BS 507 transmits a paging activation message (MOB-PAG_ADV) with the active code set to the push state to the MS 509. For example, the paging activation message is configured as shown in Table 6 below. In this case, the active code field may be omitted in Table 6. [

Upon receiving a paging activation message indicating that the active code is set to be pushed, the terminal 509 transmits a ranging request (RNG-REQ) message to the base station 507 in order to receive a message from the base station 507 step). At this time, the terminal 509 does not switch to the active mode but performs only the ranging process with the base station 507 in order to receive the message according to the push service while maintaining the standby mode.

Upon receiving the ranging request message, the BS 507 transmits a location update request message (LU_REQ) to the ASN-GW 505 to inform the location of the terminal in step 531.

The ASN-GW 505 transmits a response message (LU_RSP) of the location update request message to the BS 507 to perform a location update procedure (step 533).

In step 535, the BS 507 transmits a ranging response (RNG-RSP) message to the MS 509 in response to the response message of the location update request message.

Thereafter, the ASN-GW 505 transmits a message to the AT 509 through the BS 507 using the push service (step 537). For example, in response to a push request of the messaging server 501, the ASN-GW 505 transmits a message to be transmitted to the terminal 509 to the first push transmission message and transmits the message to the base station 507. The base station 507 transmits a message to be transmitted to the terminal 509 to the second push transmission message of the MAC layer and transmits the message to the terminal 509. At this time, the first push transmission message is transmitted through the wired network, but the second push transmission message is transmitted through the wireless network. Accordingly, the first push transmission message and the second push transmission message are configured differently.

The ASN-GW 505 transmits a push response message to the messaging server 501 when the push service for the message to be transmitted to the terminal 509 is successfully performed (operation 539). For example, if the ASN-GW 505 receives a response message for the first push-transfer message from the BS 507, the ASN-GW 505 recognizes that the push service is successful.

In the above-described embodiment, the messaging server 501 obtains the information of the terminal 509 from the AAA server 503. [ In this case, the terminal 509 registers the profile and location information with the AAA server 503 when performing handover or network entry.

In another embodiment, when the terminal 509 registers profile and location information with the messaging server 501, the messaging server 501 acquires the information of the terminal 509 from the AAA server 503 It may be omitted.

The base station 507 transmits a ranging response message to the terminal 509 and then transmits the ranging response message to the terminal 509 in the second push transmission message, And transmits the message to the terminal 509.

In another embodiment, the base station 507 may transmit a message to be transmitted to the terminal 509 in the ranging response message and transmit the message to the terminal 509. In this case, the ASN-GW 505 transmits a first push transmission message to the base station 507 before the base station 507 transmits a ranging response message. Herein, the ranging response message includes a push message PDU and a reply flag.

When transmitting a multimedia message, the wireless communication system transmits a multimedia message using a push service based on a MAC layer as shown in FIG.

FIG. 6 illustrates a procedure for transmitting a message using a push service in a wireless communication system according to another embodiment of the present invention.

6, if there is a message to be transmitted to the terminal 609 operating in the active mode (step 611), the messaging server 601 acquires the information of the terminal 609 from the AAA server 603 (Step 613).

Thereafter, the messaging server 601 requests push to the ASN-GW 605 (step 615). At this time, the messaging server 601 transmits a push message (Push_Request (Notify.req)) according to the push service to the ASN-GW 605. Here, the notification message includes the address of the media server.

The ASN-GW 605 transmits a notification message to the AT 609 through the BS 607 using the push service (step 617). At this time, the ASN-GW 605 transmits the first notification message to the BS 607 via the wired network, and the BS 607 transmits the second notification message to the AT 609 through the wireless network. Accordingly, the first notification message and the second notification message are configured differently. Here, the notification message includes the address of the media server.

The ASN-GW 605 transmits a notification response message (Push_Response (Notify.res)) to the messaging server 601 when the notification message according to the push service is successfully transmitted to the terminal 609 (619 step).

The terminal 609 obtains the address of the media server through the notification message provided from the base station 607. In step 621, the terminal 609 requests the media server to transmit a message using the acquired address of the media server. For example, the terminal 609 requests a message transmission to the media server using the obtained address of the media server in the 'GET' scheme of the HTTP protocol.

At this time, the media server transmits a message to the terminal 609 according to a request of the terminal 609 (step 623). For example, in response to a request from the terminal 609, the media server encapsulates the converted message according to the profile of the terminal 609 according to the HTTP protocol and transmits the encapsulated message to the terminal 609.

If there is a message to be transmitted to the terminal 609 operating in the idle mode (step 611), the messaging server 601 acquires the information of the terminal 609 from the AAA server 603 (step 631) .

Then, the messaging server 601 requests push to the ASN-GW 605 (step 633). At this time, the messaging server 601 transmits a notification message according to the push service to the ASN-GW 605. Here, the notification message includes the address of the media server.

The ASN-GW 605 transmits a paging announcement message (Paging_Announce) in which the active code is set to be pushed to the BS 607 when the notification message is received from the messaging server 601 (step 635).

In step 637, the BS 607 transmits a paging activation message (MOB-PAG_ADV) having the active code set to the PUSH to the MS 609. For example, the paging activation message is configured as shown in Table 6 below.

Upon receiving the paging activation message indicating that the active code is set to be pushed, the terminal 609 transmits a ranging request (RNG-REQ) message to the base station 607 to receive the message from the base station 607 (639 step). At this time, the terminal 609 does not switch to the active mode but transmits a ranging request message to the base station 607 in order to receive a message according to the push service while maintaining the standby mode.

When the ranging request message is received, the BS 607 transmits a location update request message (LU_REQ) to the ASN-GW 605 to inform the location of the terminal (step 641).

The ASN-GW 605 transmits a response message (LU_RSP) of the location update request message to the BS 607 to perform a location update procedure (operation 643).

In step 645, the BS 607 transmits a ranging response (RNG-RSP) message to the MS 609 upon receipt of a response message of the location update request message.

Thereafter, the ASN-GW 605 transmits a notification message to the AT 609 through the BS 607 using the push service (step 647). At this time, the ASN-GW 605 transmits the first notification message to the BS 607 via the wired network, and the BS 607 transmits the second notification message to the AT 609 through the wireless network. Accordingly, the first notification message and the second notification message are configured differently. Here, the notification message includes the address of the media server.

If the ASN-GW 605 successfully transmits a notification message according to the push service to the terminal 609, the ASN-GW 605 transmits a notification response message to the messaging server 601 (operation 649).

The terminal 609 obtains the address of the media server through the notification message provided from the base station 607. Then, the terminal 609 requests the media server to transmit a message using the obtained address of the media server (step 651). For example, the terminal 609 requests a message transmission to the media server using the obtained address of the media server in the 'GET' scheme of the HTTP protocol.

At this time, the media server transmits a message to the terminal 609 according to a request of the terminal 609 (step 653). For example, in response to a request from the terminal 609, the media server encapsulates the converted message according to the profile of the terminal 609 according to the HTTP protocol and transmits the encapsulated message to the terminal 609.

In the above-described embodiment, the messaging server 601 acquires the information of the terminal 609 from the AAA server 603. [ In this case, the terminal 609 registers profile and location information with the AAA server 603 when performing handover or network entry.

In another embodiment, when the terminal 609 registers profile and location information with the messaging server 601, the messaging server 601 acquires the information of the terminal 609 from the AAA server 603 It may be omitted.

Also, in the above embodiment, when the terminal 609 operates in the idle mode, the base station 607 transmits a ranging response message to the terminal 609, and then transmits a notification message to the second push transmission message And transmits it to the terminal 609.

In another embodiment, the base station 607 may transmit a notification message to the terminal 609 in a ranging response message. In this case, the ASN-GW 605 must transmit a notification message to the BS 607 before the BS 607 transmits a ranging response message.

The wireless communication system transmits the multimedia message to the mobile station using the push service based on the MAC layer as shown in FIG.

In another embodiment, when the size of the multimedia message is small, the wireless communication system may transmit the multimedia message using the push service based on the MAC layer as shown in FIG.

FIG. 7 shows a configuration of a push transfer message according to an embodiment of the present invention. In the following description, the first push transmission message is transmitted from the ASN-GW 303 to the base station 305 as shown in FIG. 3, and the second push transmission message is transmitted from the base station 305 to the terminal 307 ). &Lt; / RTI &gt;

As shown in FIG. 7, a MAC PDU 710 is added to a MAC header 700 in a push message of the MAC layer.

The MAC PDU 710 of the second push transmission message includes the PDU of the first push transmission message.

The PDU of the second push transmission message includes a push application identifier and a push message PDU. Here, the push application identifier indicates the type of the push message. For example, if the push message is a short message, the push application identifier is set to one. On the other hand, if the push message is a multimedia message, the push application identifier is set to 2.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

Claims (24)

A method of providing a push service in a wireless communication system using an Orthogonal Frequency Division Multiplexing (OFDM) scheme or an Orthogonal Frequency Division Multiple Access (OFDMA) scheme,
When a message is received from another network or another messaging server, the messaging server transmits a push service request message to the push server,
Transmitting, by the messaging server, a first push delivery message including a message to be transmitted to the mobile station to a base station, when the MS requests the push service through the push service request message; ,
When the first push transmission message is received, transmitting, by the base station, a second push transmission message based on a MAC (Media Access Control) layer including a message to be transmitted to the terminal,
Wherein the push service request message includes at least one of terminal identification information, a transaction identifier, a push server identifier, a messaging server identifier, a reply flag, a length of a PDU, and a message PDU,
Wherein the message PDU comprises at least one of an application identifier, message length information, and message content.
The method according to claim 1,
Wherein the push server is included in an ASN (Access Service Network) -GW (GateWay).
delete The method according to claim 1,
Wherein the first push transmission message comprises at least one of: terminal identification information, base station identification information, a reply flag, a length of a PDU, and a message PDU.
The method according to claim 1,
When the second push transmission message is received, checking a message and an application program identifier to use the message in the second push transmission message;
The terminal providing the message to a corresponding application program using the application program identifier;
Further comprising the step of transmitting a response message of the second push transmission message to the base station when it is necessary to return the second push transmission message.
6. The method of claim 5,
Transmitting, by the base station, a response message to the push server when the response message of the second push transmission message is received;
Wherein the push server further comprises the step of transmitting a response message to the push service request message to the messaging server when a response message to the first push transfer message is received.
The method according to claim 6,
Wherein the response message for the first push transmission message comprises at least one of identification information of the terminal, identification information of the base station, push server identifier, and transmission result of the first push transmission message.
The method according to claim 6,
Wherein the response message to the push service request message includes at least one of identification information of a terminal, a transaction ID, a messaging server identifier, a push server identifier, and a transmission result of the push service request message.
The method according to claim 1,
Transmitting a paging signal to the terminal through the base station when the MS requests the push service through a push service request message and the terminal operates in an idle mode;
Transmitting a ranging request message to the base station when the paging signal is received;
The base station performs a location update procedure for the push server and the terminal when the ranging request message is received,
Transmitting, by the push server, a first push delivery message including a message to be transmitted to the mobile station to the base station;
Further comprising the step of the base station transmitting, when the first push transmission message is received, a ranging response message including a message to be transmitted to the terminal to the terminal.
10. The method of claim 9,
Transmitting a response message for the message to the BS when the MS needs to reply to the message included in the ranging response message;
Transmitting a response message for the first push transmission message to the push server when a response message for the message is received;
Wherein the push server further comprises the step of transmitting a response message to the push service request message to the messaging server when a response message to the first push transfer message is received.
The method according to claim 1,
Transmitting a paging signal to the terminal through the base station when the MS requests the push service through a push service request message and the terminal operates in an idle mode;
Transmitting a ranging request message to the base station when the paging signal is received;
The base station performs a location update procedure for the push server and the terminal when the ranging request message is received,
The base station transmitting a ranging response message to the mobile station;
Transmitting, by the push server, a first push delivery message including a message to be transmitted to the mobile station to the base station;
When the first push transmission message is received, transmitting, by the base station, a second push transmission message including a message to be transmitted to the terminal to the terminal.
12. The method of claim 11,
Transmitting a response message for the second push transmission message to the base station when the second push transmission message is required to be returned;
Transmitting, by the base station, a response message for the first push transmission message to the push server when a response message for the second push transmission message is received;
Wherein the push server further comprises the step of transmitting a response message to the push service request message to the messaging server when a response message to the first push transfer message is received.
In a wireless communication system using an Orthogonal Frequency Division Multiplexing (OFDM) scheme or an Orthogonal Frequency Division Multiple Access (OFDMA) scheme for providing a push service,
A messaging server for sending a push service request message to the push server when a message is received from another network or another messaging server;
A push server for transmitting, to the base station, a first push delivery message including a message to be transmitted to the mobile station when the messaging server operates in an active mode in a push service request message;
And a base station for transmitting a second push transmission message based on a Media Access Control (MAC) layer including a message to be transmitted to the terminal to the terminal when the first push transmission message is received,
Wherein the push service request message includes at least one of terminal identification information, a transaction identifier, a push server identifier, a messaging server identifier, a reply flag, a length of a PDU, and a message PDU,
Wherein the message PDU comprises at least one of an application identifier, message length information, and message content.
14. The method of claim 13,
The push server is included in an ASN (Access Service Network) -GW (GateWay).
delete 14. The method of claim 13,
Wherein the first push transmission message includes at least one of a terminal identification information, a base station identification information, a reply flag, a length of a PDU, and a message PDU.
14. The method of claim 13,
When the second push transmission message is received, the terminal checks an application program identifier to use the message and the message in the second push transmission message, and transmits the message to the corresponding application program using the application program identifier and,
And transmits a response message of the second push transmission message to the base station when it is necessary to return the second push transmission message.
18. The method of claim 17,
When the response message of the second push transmission message is received, the base station transmits a response message for the first push transmission message to the push server,
Wherein the push server transmits a response message to the push service request message to the messaging server when a response message to the first push transfer message is received.
19. The method of claim 18,
Wherein the response message to the first push transmission message includes at least one of identification information of the terminal, identification information of the base station, push server identifier, and transmission result of the first push transmission message.
19. The method of claim 18,
Wherein the response message to the push service request message includes at least one of identification information of a terminal, a transaction ID, a messaging server identifier, a push server identifier, and a transmission result of the push service request message.
14. The method of claim 13,
Wherein the push server transmits a paging signal to the terminal through the base station when the MS requests the push service through a push service request message in an idle mode,
The terminal transmits a ranging request message to the base station when the paging signal is received,
The base station performs a location update procedure for the push server and the terminal when the ranging request message is received,
The push server transmits a first push delivery message including a message to be transmitted to the terminal to the base station,
Wherein the base station transmits a ranging response message including a message to be transmitted to the terminal to the terminal when the first push transmission message is received.
22. The method of claim 21,
The terminal transmits a response message for the message to the base station when it is necessary to reply to the message included in the ranging response message,
The base station transmits a response message to the push server when the response message to the message is received,
Wherein the push server transmits a response message to the push service request message to the messaging server when a response message to the first push transfer message is received.
14. The method of claim 13,
Wherein the push server transmits a paging signal to the terminal through the base station when the MS requests the push service through a push service request message in an idle mode,
The terminal transmits a ranging request message to the base station when the paging signal is received,
The base station performs a location update procedure for the push server and the terminal when the ranging request message is received,
The BS transmits a ranging response message to the MS,
The push server transmits a first push delivery message including a message to be transmitted to the terminal to the base station,
Wherein the BS transmits a second push transmission message including a message to be transmitted to the MS to the MS when the first push transmission message is received.
24. The method of claim 23,
The MS transmits a response message to the BS in response to the second push transmission message,
The base station transmits a response message for the first push-transfer message to the push server when a response message for the second push-transfer message is received,
Wherein the push server transmits a response message to the push service request message to the messaging server when a response message to the first push transfer message is received.

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