KR20100090201A - System and method for supporting message push service in wireless communication system - Google Patents

Abstract

PURPOSE: A system and a method for providing a message push service in a wireless communication system are provided to supply a push service based on a MAC(Media Access Control) layer. CONSTITUTION: When an MS(Mobile Station)(109) in which a messaging server requests a push service through a push service request message operates in an active mode, a push server transmits the first push transmission message including a message to be transmitted to a BS(Base Station)(107). The BS receives the first push transmission message. The BS transmits the second push transmission message based on a MAC(Media Access Control) layer including a message transmitted to the MS.

Description

System and method for providing message push service in wireless communication system {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 MAC layer-based push service in a wireless communication system.

The wireless communication system provides a push service that actively transmits data to a client by a server without a user's manipulation in order to increase the convenience of a communication service. For example, push services include 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 a voice service, which is not suitable 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 whenever the push service is provided.

In the UDP push service, if a firewall exists between a push server and a terminal, transmission of a push message may be blocked, and thus there is a problem in that service provision cannot be guaranteed.

Broadband wireless communication systems using Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) are not defined in which they can transmit and receive data with push characteristics. Did. Accordingly, a problem arises in that a broadband wireless communication system must transmit a push message in the same manner as general data.

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

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

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

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

According to a first aspect of the present invention for achieving the objects of the present invention, a method of providing a push service in a wireless communication system using an Orthogonal Frequency Division Multiple Access (OFDM) scheme or an Orthogonal Frequency Division Multiple Access (OFDMA) scheme is provided. When a message is received from another network or another messaging server, the messaging server transmits a push service request message to a push server, and the push server includes a terminal requesting a push service through a push service request message by the messaging server. When operating in an active mode, transmitting a first push transmission message including a message to be transmitted to the terminal to the base station; and when the first push transmission message is received, the base station sends a message to the terminal. A second push transmission message based on a media access control (MAC) layer including a message to the terminal 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 Multiple Access (OFDM) scheme or an Orthogonal Frequency Division Multiple Access (OFDMA) scheme for providing a push service is provided in another network or another messaging server. A message to send a push service request message to a push server when a message is received from the message server, and a message to be transmitted to the terminal when the terminal requesting the push service through the push service request message operates in an active mode. A second based on a media access control (MAC) layer including a message to be transmitted to the terminal when the first push transmission message is received and the push server transmits a first push delivery message to a base station; It characterized in that it comprises a base station for transmitting a push transmission message to the terminal.

As described above, by transmitting a message using a MAC (Media Access Control) layer-based push service in the wireless communication system, a message can be transmitted without establishing a connection of a higher layer of a transmission control procedure (TCP), and a standby mode. The terminal in the idle mode can be prevented from transitioning to the awake mode unnecessarily to receive a message, and there is an advantage in that a message can be transmitted to an application layer of another service. In addition, it can solve the problem that the message is blocked at the firewall or NAT (Network Address Translation).

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
7 is a diagram illustrating a configuration of a push transmission message according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intentions or customs of the user, the operator, and the like. Therefore, the definition should be made based on the contents throughout the specification.

Hereinafter, a description will be given of a technology for transmitting a message using a push service based on a MAC layer in a wireless communication system.

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

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

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

As shown in FIG. 1, the wireless communication system 100 includes a messaging server 101, an authentication, authorization, and accounting (AAA) server 103, an access service network (ASN) -gateway (GW) ( 105), a base station (BS) 107 and a mobile station (MS).

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

In addition, the messaging server 101 may directly transmit a message to the terminal 109 by using the push service when the capacity of the message is large.

The messaging server 101 controls not only other messaging servers but also an interworking function (IWF) server to transmit and receive messages in cooperation with the system 110 of another communication method. For example, the messaging server 101 may be connected to another messaging server 101 using a WiMAX Messaging (WM) 4 interface. In addition, the messaging server 101 is connected to a Short Message Service Center (SMSC) / Short Message (SM) -GW (GateWay) 111 using a WM6 interface, and a web-based server 113 using a WM7 interface. ) Is connected to the Multimedia Message Service (MMS) Proxy-Relay Server 115 using the WM3 interface.

The AAA server 103 may manage authentication and billing information, and may include a subscription profile repository (SPR) function for managing profile information for each subscriber. In addition, the AAA server 103 may manage the security key and lifetime derived from the initial authentication.

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

In addition, the ASN-GW 105 includes a push proxy server to provide a push service. For example, when the ASN-GW 105 receives a push request from the messaging server 101, the ASN-GW 105 transmits a message to the base station 107 to be transmitted to the terminal 109 using a push service. If the terminal 109 operates in an idle mode, the ASN-GW 105 uses a paging control function and a push service to perform paging to the terminal 109. Performs a push proxy function to send it.

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

The terminal 109 displays the message provided from the base station 107 so that the user can check, 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 to perform a push proxy function.

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

When transmitting a message using a push service as described above, the terminal should be registered with the messaging server as shown in FIG.

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

Referring to FIG. 2, when the terminal 200 performs handover or network entry, the terminal 200 requests registration to the messaging server 210 (step 221). In this case, at least one of a phone number, an IP address, and a MAC address of the terminal 200 is used as its 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 handover or network entry, the AAA server may store the profile and the location of the terminal 200.

Hereinafter, a method for providing a message to a terminal using a push service in a wireless communication system will be described. For example, the wireless communication system transmits a message to the terminal using a ranging response message (RNG-RSP) as shown in FIG. 3.

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

As shown in FIG. 3, when there is a message to be transmitted to the terminal 307 operating in the awake mode, the messaging server 301 requests a push to the ASN-GW 303 (step 311). ). In this case, the messaging server 301 sends a push request message (Push_Request) including a message PDU to be transmitted to the terminal 307, terminal information, an ASN-GW ID, and a return flag, to the ASN-GW 303. send. For example, the messaging server 301 may send the push request message to the ASN-GW 303 via an AAA server. Here, the message PDU includes an application ID. The application identifier indicates an identifier for identifying an application program for transmitting a message among application programs included in the terminal 307. The reply flag indicates whether 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 Packet Data Unit (PDU)

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 loads a message to be transmitted to the terminal 307 in 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). . In this case, 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 Messages 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 base station 305 transmits a second push delivery message (Push Delivery II) including a message to be transmitted to the terminal 307 through the MAC layer (step 315). In this case, 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 a wired network, but since the second push transmission message is transmitted through a wireless network, the first push transmission message is configured differently. For example, the second push transmission message is configured as shown in FIG. 7 below.

The terminal 307 transmits the message provided through the second push transmission message provided from the base station 305 to the application program 309 corresponding to the application identifier (step 317).

The terminal 307 determines whether to transmit a response message (Push_Deliver II ACK) to the push transmission message according to a reply flag included in the second push transmission message provided from the base station 305. That is, when the reply flag is set to unnecessary to reply to the push service, the terminal 307 does not transmit a response message to the second push transmission message. On the other hand, if the reply flag is set to require a reply to the push service, the terminal 307 transmits a response message for the second push transmission message to the base station 305 (step 319).

When the base station 305 receives the response message for the second push transmission message, the base station 305 transmits a response message (Push_Deliver I ACK) for the first push transmission message to the ASN-GW 303 (step 321). For example, the response message to the first push transmission message may be configured to 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 for success)

When the push service for the message to be transmitted to the terminal 307 is successfully performed, the ASN-GW 303 transmits a push response message Push_Response to the messaging server 301 (step 323). For example, the ASN-GW 303 recognizes that the push service is successful when receiving the response message for the first push transmission message from the base station 305. In this case, 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 for success)

If there is a message to be transmitted to the terminal 307 operating in the idle mode, the messaging server 301 requests a push to the ASN-GW 303 (step 331). At this time, the messaging server 301 transmits a push request message including a message PDU and a reply flag to be transmitted to the terminal 307 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 push according to the push request of the messaging server 301 to the base station 305 (step 333). . In this case, the active code may be omitted in the paging notification message.

The base station 305 transmits a paging activation message (MOB-PAG_ADV) having an active code set to push to the terminal 307 (step 335). For example, the paging activity message is configured as shown in Table 6 below. At this time, the base station 305 transmits a paging active message in consideration of the listening interval of the terminal 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 16 bits   } Push Indication 1 bit 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 1 bit   }   else {     Num_MACs 8bits     For (j = 0; j <Num_MACs; j ++) {       MS MAC Address Hash 24bits       Action code 3bits       Frame offset 4bits       Reserved 1 bit     }   }   padding variable   TLV Encoded Information }

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

When the base station 305 provides the push service, the paging activity message is set to push (0bxxx) the action code (action code) included in the Push Indication field.

When receiving the paging activation message with the activation code set to push, the terminal 307 transmits a ranging request message (RNG-REQ) to the base station 305 to receive the message (step 337). In this case, the terminal 307 transmits the ranging request message to the base station 305 to receive the message according to the push service while maintaining the standby mode instead of switching to the active 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 to notify 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).

When the ASN-GW 303 performs a location update procedure for the terminal 307 of the base station 305, the ASN-GW 303 recognizes that the terminal 307 is connected to the base station 305. Accordingly, the ASN-GW 303 loads a message to be transmitted to the terminal 307 in the first push transmission 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.

The base station 305 transmits a ranging response (RNG-RSP) message to the terminal 307 according to the reception of the first push transmission message (step 345). In this case, the ranging response message includes a push message PDU and a return flag.

The terminal 307 transmits the message provided through the ranging response message provided 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 for 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 unnecessary to reply to the push service, the terminal 307 does not transmit a response message for the push message PDU to the base station 305. On the other hand, if the reply flag is set to require a reply to the push service, the terminal 307 transmits an L2 response message (L2 ACK) for the push message PDU to the base station 305 (step 349).

When the L2 response message is received, the base station 305 transmits a response message (Push_Deliver I ACK) for the first push transmission message to the ASN-GW 303 (step 351).

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

In the above-described embodiment, the ASN-GW 303 transmits the response message of the location update request message and the first push transmission message to the base station 305 (steps 341 and 343).

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

The wireless communication system may transmit a message to the terminal using an L2 transfer message as shown in FIG. 4.

4 illustrates a procedure for providing a push service in a wireless communication system according to another embodiment of the present invention. In the following description, it is assumed that the terminal 407 operates in the 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.

As shown in FIG. 4, if there is a message to be transmitted to the terminal 407 operating in the standby mode, the messaging server 401 requests a push to the ASN-GW 403 (step 411). In this case, the messaging server 401 transmits a push request message (Push_Request) including a message PDU and a return flag to be transmitted to the terminal 407 to the ASN-GW 403. For example, the messaging server 401 may send the push request message to the ASN-GW 403 via an AAA server. Here, the message PDU includes an application identifier.

The ASN-GW 403 transmits a paging announcement message (Paging Announce) in which an active code is set to push according to the push request of the messaging server 401 (step 413). In this case, the active code may be omitted in the paging notification message.

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

The terminal 407 transmits a ranging request message (RNG_REQ) to the base station 405 to receive the message when a paging activation message having an active code set to push is received (step 417). In this case, the terminal 407 transmits the ranging request message to the base station 405 in order to receive the message according to the push service while maintaining the standby mode instead of switching to the active mode.

When the ranging request message is received, the base station 405 transmits a location update request message (LU_REQ) to the ASN-GW 403 to notify 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 base station 405 to perform a location update procedure (step 421).

The base station 405 transmits a ranging response (RNG-RSP) message to the terminal 407 in response to receiving the response message of the location update request message (step 423).

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 loads a message to be transmitted to the terminal 407 in the first push transmission message Push_Deliver I and transmits the message to the base station 405 in step 425. In this case, the first push transmission message includes a reply flag and a push message PDU.

The base station 405 transmits a second push transmission message (Push_Deliver II) including a message to be transmitted to the terminal 407 through the MAC layer (step 427). In this case, 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 a wired network, but since the second push transmission message is transmitted through a wireless network, the first push transmission message is configured differently. For example, the second push transmission message is configured as shown in FIG. 7.

The terminal 407 transmits the message received through the second push transmission message provided from the base station 405 to the application program 409 corresponding to the application identifier (step 429).

The terminal 407 determines whether to transmit a response message to the second push transmission message according to a reply flag included in the second push transmission message provided from the base station 405. That is, when the reply flag is set to unnecessary to reply to the push service, the terminal 407 does not transmit a response message to the second push transmission message. On the other hand, if the reply flag is set to require a reply to the push service, the terminal 407 transmits a response message (Push_Deliver II ACK) for the second push transmission message to the base station 405 (step 431). ).

When the base station 405 receives the response message for the second push transmission message, the base station 405 transmits a response message (Push_Deliver I ACK) for the first push transmission message to the ASN-GW 403 (step 433).

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 (step 435). For example, the ASN-GW 403 recognizes that the push service is successful when the ASN-GW 403 receives a response message from the base station 405 in response to the first push transmission message.

In the above-described embodiment, the ASN-GW 403 transmits the response message of the location update request message and the first push transmission message to the base station 405 (steps 421 and 425).

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

As described above, the wireless communication system may transmit a message to the terminal using a MAC layer-based push service. Here, the message transmitted to the terminal includes at least one of a short message and a multimedia message. In this case, the short message and the multimedia message may have different sizes, and thus the message may be transmitted in different ways. If the size of the message is larger than the size that can be transmitted at one time over the wireless link, the base station may fragment and transmit the message.

When transmitting a short message, the wireless communication system transmits the short message using a MAC layer-based push service as shown in FIG. 5.

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.

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

Thereafter, the messaging server 501 requests a push to the ASN-GW 505 (step 515). At this time, the messaging server 501 loads a message to be transmitted to the terminal 509 in a push request message (Push_Request) and transmits the message to the ASN-GW 505. For example, the messaging server 501 may send the push request message to the ASN-GW 505 through the AAA server 503.

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

When the push service for the message to be transmitted to the terminal 509 is successfully performed, the ASN-GW 505 transmits a push response message (Push_Response) to the messaging server 501 (step 519). For example, the ASN-GW 505 recognizes that the push service is successful when receiving the response message for the first push transmission message from the base station 507.

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

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

The ASN-GW 505 transmits a paging announcement message (Paging_Announce) that sets an active code to push according to the push request of the messaging server 501 to the base station 507 (step 525). In this case, the active code of the paging announcement message may be omitted.

The base station 507 transmits a paging activation message (MOB-PAG_ADV) in which an active code is set to push to the terminal 509 (step 527). For example, the paging activity message is configured as shown in Table 6. In this case, the active code field may be omitted in Table 6.

The terminal 509 transmits a ranging request (RNG-REQ) message to the base station 507 to receive a message from the base station 507 when a paging active message having an active code set to push is received (529). step). In this case, the terminal 509 does not switch to the active mode, but performs only a ranging procedure with the base station 507 to receive a message according to the push service while maintaining the standby mode.

When the ranging request message is received, the base station 507 notifies the terminal location by transmitting a location update request message LU_REQ to the ASN-GW 505 (step 531).

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

The base station 507 transmits a ranging response (RNG-RSP) message to the terminal 509 in response to receiving the response message of the location update request message (step 535).

Thereafter, the ASN-GW 505 transmits a message to the terminal 509 through the base station 507 using a push service (step 537). For example, the ASN-GW 505 loads a message to be transmitted to the terminal 509 in the first push transmission message according to the push request of the messaging server 501 and transmits the message to the base station 507. The base station 507 loads the message to be transmitted to the terminal 509 in the second push transmission message of the MAC layer and transmits the message to the terminal 509. In this case, the first push transmission message is transmitted through a wired network, but the second push transmission message is transmitted through a 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 (step 539). For example, the ASN-GW 505 recognizes that the push service is successful when receiving the response message for the first push transmission message from the base station 507.

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 the profile and the location information with the messaging server 501, the messaging server 501 obtains the information of the terminal 509 from the AAA server 503. May be omitted.

In addition, in the above-described embodiment, when the terminal 509 operates in the standby mode, the base station 507 transmits a ranging response message to the terminal 509 and then the terminal 509 in the second push transmission message. A message to be transmitted to the terminal 509 is transmitted.

In another embodiment, the base station 507 may transmit a message to be sent 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. Here, the ranging response message includes a push message PDU and a return flag.

When transmitting a multimedia message, the wireless communication system transmits the multimedia message using a MAC layer-based push service as shown in FIG. 6.

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.

As shown in FIG. 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 a push to the ASN-GW 605 (step 615). At this time, the messaging server 601 transmits a notification 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 terminal 609 through the base station 607 using a push service (step 617). In this case, the ASN-GW 605 transmits a first notification message to the base station 607 through a wired network, and the base station 607 transmits a second notification message to the terminal 609 through a 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.

When 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 Push_Response (Notify.res) to the messaging server 601 (619). step).

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

In this case, the media server transmits a message to the terminal 609 at the request of the terminal 609 (step 623). For example, the media server encapsulates the message converted according to the profile of the terminal 609 according to the request of the terminal 609 according to the HTTP protocol and transmits the message to the terminal 609.

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

Thereafter, the messaging server 601 requests a 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.

When the ASN-GW 605 receives a notification message from the messaging server 601, the ASN-GW 605 transmits a paging announcement message Paging_Announce that sets an active code to push to the base station 607 in step 635.

The base station 607 transmits a paging activation message (MOB-PAG_ADV) having an active code set to push to the terminal 609 (step 637). For example, the paging activity message is configured as shown in Table 6.

The terminal 609 transmits a ranging request (RNG-REQ) message to the base station 607 in order to receive the message from the base station 607 when the paging activity message having the active code set to push is received. step). In this case, the terminal 609 transmits the ranging request message to the base station 607 in order to receive the message according to the push service while maintaining the standby mode instead of switching to the active mode.

When the ranging request message is received, the base station 607 sends a location update request message LU_REQ to the ASN-GW 605 to notify 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 base station 607 to perform a location update procedure (step 643).

The base station 607 transmits a ranging response (RNG-RSP) message to the terminal 609 in response to receiving the response message of the location update request message (step 645).

Thereafter, the ASN-GW 605 transmits a notification message to the terminal 609 through the base station 607 using a push service (step 647). In this case, the ASN-GW 605 transmits a first notification message to the base station 607 through a wired network, and the base station 607 transmits a second notification message to the terminal 609 through a 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.

When 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 (step 649).

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

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

In the above-described embodiment, the messaging server 601 obtains 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 the profile and location information with the messaging server 601, the messaging server 601 may acquire the information of the terminal 609 from the AAA server 603. May be omitted.

In addition, in the above-described embodiment, when the terminal 609 operates in the standby mode, the base station 607 transmits a ranging response message to the terminal 609 and then places a notification message on the second push transmission message. Transmission to the terminal 609.

According to another embodiment, the base station 607 may transmit a notification message to a ranging response message to the terminal 609. In this case, the ASN-GW 605 should transmit a notification message to the first push transmission message to the base station 607 before the base station 607 transmits the ranging response message.

As shown in FIG. 6, the wireless communication system transmits a multimedia message to the terminal using a MAC layer-based push service.

In another embodiment, when the size of the multimedia message is small, the wireless communication system may transmit the multimedia message using a MAC layer-based push service as shown in FIG. 5.

7 illustrates a configuration of a push transmission message according to an embodiment of the present invention. In the following description, a first push transmission message is transmitted from the ASN-GW 303 to the base station 305 as shown in FIG. 3, and a second push transmission message is transmitted from the base station 305 to the terminal 307. Represents a push message sent to).

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

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.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (24)

A method of providing a push service in a wireless communication system using Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA)
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;
The push server transmits a first push delivery message including a message to be transmitted to the terminal when the terminal requesting the push service through the push service request message is operated in the active mode. ,
And when the first push transmission message is received, transmitting the second push transmission message based on a MAC (Media Access Control) layer including a message to be transmitted to the terminal, to the terminal. Way.
The method of claim 1,
The push server is included in an Access Service Network (ASN) -GateWay.
The method of claim 1,
The push service request message includes at least one of terminal identification information, a transaction identifier (Transaction ID), a push server identifier, a messaging server identifier, a reply flag, length information of a PDU, and a message PDU.
And wherein the message PDU comprises at least one of an application identifier, message length information and message content.
The method of claim 1,
The first push transmission message may include at least one of terminal identification information, base station identification information, reply flag, length of PDU, and message PDU.
The method of claim 1,
When the second push transmission message is received, identifying, by the terminal, 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;
And when the terminal needs to return the second push transmission message, transmitting the response message of the second push transmission message to the base station.
6. The method of claim 5,
When the base station receives a response message of the second push transmission message, transmitting a response message to the push server to the push server;
And when the response message for the first push transmission message is received, transmitting the response message to the messaging service server to the messaging server.
The method of claim 6,
The response message to the first push transmission message may include at least one of identification information of a terminal, identification information of a base station, a push server identifier, and a transmission result of the first push transmission message.
The method of claim 6,
The response message to the push service request message may include at least one of identification information of the terminal, a transaction ID, a transaction server ID, a messaging server ID, a push server ID, and a transmission result of the push service request message. .
The method of claim 1,
The push server may be configured to transmit a paging signal to the terminal through the base station when the messaging server requests a push service through a push service request message in an idle mode;
When the terminal receives the paging signal, transmitting a ranging request message to the base station;
When the ranging request message is received, the base station performing a location update procedure for the push server and the terminal;
The push server transmitting a first push delivery message including a message to be transmitted to the terminal to the base station;
And when the first push transmission message is received, transmitting the ranging response message including the message to be transmitted to the terminal to the terminal.
The method of claim 9,
When the terminal needs to return a message included in the ranging response message, transmitting a response message to the message to the base station;
When the base station receives a response message for the message, transmitting the response message to the push server to the push server;
And when the response message for the first push transmission message is received, transmitting the response message to the messaging service server to the messaging server.
The method of claim 1,
The push server may be configured to transmit a paging signal to the terminal through the base station when the messaging server requests a push service through a push service request message in an idle mode;
When the terminal receives the paging signal, transmitting a ranging request message to the base station;
When the ranging request message is received, the base station performing a location update procedure for the push server and the terminal;
The base station transmitting a ranging response message to the terminal;
The push server transmitting a first push delivery message including a message to be transmitted to the terminal to the base station;
And when the first push transmission message is received, transmitting the second push transmission message including the message to be transmitted to the terminal to the terminal.
12. The method of claim 11,
When the terminal needs to return the second push transmission message, transmitting a response message to the second push transmission message to the base station;
When the base station receives a response message for the second push transmission message, transmitting a response message for the first push transmission message to the push server;
And when the response message for the first push transmission message is received, transmitting the response message to the messaging service server to the messaging server.
In a wireless communication system using Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) for providing a push service,
A messaging server that sends a push service request message to a push server when the message is received from another network or another messaging server;
The push server transmitting a first push delivery message including a message to be transmitted to the terminal when the terminal requesting the push service through the push service request message operates in an active mode;
When the first push transmission message is received, comprising a base station for transmitting to the terminal a second push transmission message based on a MAC (Media Access Control) layer including a message to be transmitted to the terminal Wireless communication system.
The method of claim 13,
The push server is a wireless communication system, characterized in that included in Access Service Network (ASN) -GateWay (GW).
The method of claim 13,
The push service request message includes at least one of terminal identification information, a transaction identifier (Transaction ID), a push server identifier, a messaging server identifier, a reply flag, length information of a PDU, and a message PDU.
The message PDU includes at least one of an application identifier, message length information, and message content.
The method of claim 13,
The first push transmission message includes at least one of terminal identification information, base station identification information, reply flag, length of PDU, and message PDU.
The method of claim 13,
When the second push transmission message is received, the terminal identifies a message and an application identifier to use the message in the second push transmission message, and provides the message to the corresponding application program using the application identifier. and,
And when a reply of the second push transmission message is required, transmitting a response message of the second push transmission message to the base station.
The method of claim 17,
When the base station receives a response message of the second push transmission message, the base station transmits a response message to the push server to the push server,
The push server transmits a response message for the push service request message to the messaging server when a response message for the first push transmission message is received.
19. The method of claim 18,
The response message to the first push transmission message may include at least one of identification information of a terminal, identification information of a base station, a push server identifier, and a transmission result of the first push transmission message.
19. The method of claim 18,
The response message to the push service request message may include at least one of a terminal identification information, a transaction ID, a transaction server ID, a messaging server ID, a push server ID, and a transmission result of the push service request message. Communication system.
The method of claim 13,
The push server transmits a paging signal to the terminal through the base station when the terminal requesting the push service through the push service request message is operated in the idle mode.
When the paging signal is received, the terminal transmits a ranging request message to the base station;
When the ranging request message is received, the base station performs a location update procedure for the push server and the terminal.
The push server transmits a first push delivery message including a message to be transmitted to the terminal to the base station,
And when the first push transmission message is received, the base station transmits a ranging response message including a message to be transmitted to the terminal to the terminal.
The method of claim 21,
When the terminal needs to reply to the message included in the ranging response message, the terminal transmits a response message to the message,
When the base station receives a response message for the message, the base station transmits a response message for the first push transmission message to the push server,
The push server transmits a response message for the push service request message to the messaging server when a response message for the first push transmission message is received.
The method of claim 13,
The push server transmits a paging signal to the terminal through the base station when the terminal requesting the push service through the push service request message is operated in the idle mode.
When the paging signal is received, the terminal transmits a ranging request message to the base station;
When the ranging request message is received, the base station performs a location update procedure for the push server and the terminal.
The base station transmits a ranging response message to the terminal,
The push server transmits a first push delivery message including a message to be transmitted to the terminal to the base station,
And when the first push transmission message is received, the base station transmits a second push transmission message including a message to be transmitted to the terminal to the terminal.
24. The method of claim 23,
When the terminal needs to reply to the second push transmission message, the terminal transmits a response message to the second push transmission message,
When the base station receives a response message for the second push transmission message, the base station transmits a response message for the first push transmission message to the push server,
The push server transmits a response message for the push service request message to the messaging server when a response message for the first push transmission message is received.

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