KR20120088377A - Method and serving gprs support node for transmitting packet - Google Patents

Abstract

PURPOSE: A packet transmission method and packet exchange support node are provided to syntagmatically transmit push messages by setting wireless connection in a timer completion point. CONSTITUTION: When the source address of the confirmed packet is a specific address, a determination unit determines whether an RAB(Radio Access Bearer) connection is set(S107,S115). When the RAB connection is not set, the determination unit operates the predefined timer(S117). A buffering unit buffers the received packet(S119). When the timer is completed, the buffering unit transmits the buffered packet to a transmission unit(S121). The transmission unit sets the RAB connection(S123). The transmission unit syntagmatically transmits the buffered packets to a portable terminal(S125).

Description

Packet transmission method and packet switching support node performing the same {METHOD AND SERVING GPRS SUPPORT NODE FOR TRANSMITTING PACKET}

The present invention relates to a packet transmission method and a packet switched support node performing the same.

The recent surge in wireless traffic at home and abroad has led to news that the burden of mobile carriers is increasing. In particular, as smartphones spread in earnest, traffic problems began to be discussed in full scale. Smartphones are known to generate more than 10 times more traffic than average feature phones.

Due to the popularity of smartphones, subscribers to data subscriptions are increasing and actual data usage is increasing, and domestic carriers are also experiencing increased traffic on 3G networks. In addition, mobile carriers are expected to focus on selling emerging devices such as navigation and netbooks with built-in eBooks, communication modules, and soared traffic.

Therefore, in order to provide a smooth wireless data service and minimize the carrier's CAPEX spending, the traffic load problem must be solved.

On the other hand, the smartphone is always on (Always on) and provides a push service. Such a push service is a service in which a push notification server provides an update notification to a smartphone in the form of a push message when an update of specified data, for example, a new mail or a new news, is generated.

However, since such a push message is usually generated intermittently, conventionally, the wireless connection is released after the first message is transmitted, and when the next message is received, the wireless connection is repeatedly established and released for the message transmission.

As described above, since the wireless connection is repeatedly set and released every time a push message is transmitted, unnecessary overload and paging occur.

Accordingly, an aspect of the present invention is to provide a packet transmission method capable of minimizing a load of a wireless access network due to repetition of a wireless connection establishment and release, and a packet switching support node performing the same.

According to one aspect of the present invention, a packet transmission method is provided. The method includes delivering a packet received from an Internet network to a mobile terminal connected to a wireless access network, the method comprising: determining, by a packet switching support node, whether the originating address of the received packet is a predetermined specific address; Collecting a packet received from the specific address for a predetermined time in case of the specific address; And transmitting the collected packet to the mobile terminal.

According to another feature of the invention, a packet switched support node is provided. The node includes: a packet switching support node for transmitting a packet received from an Internet network to a mobile terminal connected to a wireless access network, the packet switching support node comprising: a determination unit for determining whether a source address of the received packet is a predetermined specific address; A buffering unit configured to collect packets received from the specific address for a predetermined time in the case of the specific address; And a transmitter for transmitting the packet collected by the buffering unit to the mobile terminal.

According to an embodiment of the present invention, if a push message is received but the wireless connection is in a terminated state, the transmission is delayed for a specific timer and the received push message is buffered. By sending a single push message at a time, it is possible to provide the effect of radio capacity saving and signaling load reduction by preventing the frequent frequent wireless connection creation and termination.

1 is a block diagram of a packet transmission network according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a packet switched support node according to an embodiment of the present invention.
3 is a flowchart illustrating a packet transmission method according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, a mobile terminal (MT) is a user equipment (UE), a terminal, a mobile station (MS), a subscriber station (SS), a portable subscriber station (PSS). ) May be referred to as an access terminal (AT), and may include all or part of the functions of the terminal, MT, MS, SS, PSS, AT, and the like.

In addition, the base station apparatus (Base Station, BS) is an access point (Access Point, AP), a radio access station (Radio Access Station, RAS), Node B (Node-B), eNB (Evolved Node-B) transmitting and receiving base station (Base Transceiver) A station, a BTS), a mobile multihop relay (MMR) -BS, or the like may be referred to, and may include all or a part of functions of an access point, a wireless access station, a node B, an eNB, a base transceiver station, and an MMR-BS.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Hereinafter, a packet transmission method and a packet switched support node performing the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a packet transmission network according to an embodiment of the present invention. In particular, FIG. 1 is a configuration diagram illustrating a wideband code division multiple access (WCDMA) network as an embodiment.

Referring to FIG. 1, the mobile terminal 100 is a terminal designed to use voice and data communication services, and may be, for example, a smartphone or a mobile phone.

The wireless access network to which the mobile terminal 100 is connected is a UTRAN (UMTS Terrestrial Radio Access Network) 200, and includes a base station apparatus 210 and a radio network controller (RNC) 230 which are wireless network devices. do.

The base station device 210 is a mobile communication network terminator that is directly connected to the mobile terminal 100 by performing baseband signal processing, wired / wireless conversion, and transmission and reception of a wireless signal.

The radio control station 230 is a device that is connected to the base station apparatus 210 and owns and controls radio resources, and a service access point connected to a Serving GPRS Support Node (SGSN) 310. Access Point).

In this case, when the mobile terminal 100 accesses the UTRAN 200, the mobile terminal 100 is matched to the UTRAN 200 through the base station apparatus 210, and the base station apparatus 210 receives a service message requested by the mobile terminal 100. The wireless network controller 200 transmits the data to the Universal Mobile Telecommunications System (UMTS) network 300 through the Radio Network Controller (hereinafter referred to as RNC) 230.

Here, the UMTS network 300 includes a Packet Switching Support Node (hereinafter referred to as SGSN) 310 and a Packet Gateway Support Node (hereinafter referred to as GGSN) 330. .

The SGSN 310 performs an authentication and packet call setup request for the mobile terminal 100 requesting packet service through the UTRAN 200. In addition, the packet forwarded from the GGSN 330 is forwarded to the RNC (230).

The GGSN 330 manages sessions for packet data services, performs routing processing of packet data, and provides an interface for connecting the UMTS network 300 and the Internet network 400. That is, the GGSN 330 receives the packet from the service server 500 through the Internet network 400 and transmits the packet to the SGSN 310.

In this case, the SGSN 310 sets a specific address, in particular, an address of a service server (or push notification server) that transmits a push message, and when the originating address of a packet received from the GGSN 330 is a specific address, After delaying for a certain period of time without immediately performing a connection, a packet, that is, a push message, received for a predetermined time is transmitted at once.

Detailed configuration of the SGSN 310 for performing this will be described in detail with reference to FIG. 2 as follows.

2 is a block diagram showing the configuration of a packet switched support node according to an embodiment of the present invention.

Referring to FIG. 2, the packet switching support node, that is, the SGSN 310, includes a setting unit 311, a receiving unit 313, a determining unit 315, a buffering unit 317, and a transmitting unit 319.

The setting unit 311 sets the address of the service server 500 that transmits the packet through the Internet network 400 to a specific address. In this case, an address of a push notification server (not shown) that transmits a push message may be set as a specific address.

Here, the push notification server (not shown) generates an update notification for notifying the mobile terminal 100 as a push message when an update of designated data, for example, a new mail or a new news, is generated through the internet network 400. Transmit to GGSN 330.

In addition, the specific address may include an address of the service server 500 that provides a strong service such as a chat message.

The receiver 313 is connected to the internet network 400 to receive a packet. In this case, the packet is transmitted by the service server 500 connected to the Internet network 400, and the service server 500 includes a push notification server (not shown).

The determination unit 315 determines whether the packet received by the reception unit 313 is a packet received from a specific address set by the setting unit 311.

In addition, when the packet is received from a specific address, the determination unit 315 determines whether a radio access bearer (RAB) connection is currently established between the SGSN 310 and the RNC 230, that is, the lu section.

At this time, the determination unit 315 receives a packet from a specific address set by the setting unit 311, and when the RAB connection is not established in the lu interval, the determination unit 315 drives a predefined timer and when the timer expires. Until the receiving unit 313 requests the buffering unit 317 to buffer the received packet. When the timer expires, the buffering unit 317 requests the transmission unit 319 to transmit the buffered packet to the mobile terminal 100.

On the other hand, the determination unit 315 does not receive the packet from the specific address set by the setting unit 311, or if the RAB is set in the lu section, the packet received by the receiving unit 313 Request the transmission unit 319 to transmit to the mobile terminal 100.

The buffering unit 317 receives and buffers the packet from the receiving unit 313 until the timer expires at the request of the determination unit 315. When the timer expires, the buffered packet is transmitted to the transmitter 319.

If the RAB is already set, the transmitter 319 transfers the packet received by the receiver 313 to the RNC 330 according to a request of the determiner 315.

In addition, when the RAB is not set, that is, the canceled state, the transmission unit 319 establishes the RAB connection at the time when the timer expires at the request of the determination unit 315, and then receives the data from the buffering unit 317. Deliver the buffered packet to the RNC 330.

Next, the packet transmission method will be described based on the above-described configuration.

In this case, the same reference numerals are used to describe the same components as those of FIGS. 1 and 2.

3 is a flowchart illustrating a packet transmission method according to an embodiment of the present invention.

Referring to FIG. 3, the setting unit 311 of the SGSN 310 sets a specific address (S101). In this case, the operator may receive and set a specific address input through an input means (not shown).

Thereafter, when the receiving unit 313 receives the packet (S103), the receiving unit 313 checks the source address of the received packet (S105). For example, the Source IP Address contained in the header of the packet can be checked.

Then, the determination unit 315 determines whether the source address of the packet checked in step S105 is a specific address set in step S101 (S107).

At this time, if it is determined that the case is not a specific address, the determination unit 315 determines whether there is a wireless connection setting, that is, RAB connection setting (S109).

If the RAB connection is not established, the RAB connection is established (S111). The received packet is transmitted to the mobile terminal 100 at step S111. That is, this step is the same as the conventional step.

On the contrary, if it is determined in step S107 that the determination unit 315 is a packet received from a specific address, it is determined whether the wireless connection is established, that is, whether the RAB connection is established (S115).

In this case, when the RAB connection is established, the transmitter 319 directly transmits the received packet to the mobile terminal 100 (S113).

However, if the RAB connection is not established, the determination unit 315 drives a predefined timer (S117). The buffering unit 317 buffers the packet received by the receiving unit 313 (S119).

If the timer expires (S121), the buffering unit 317 transmits the buffered packet to the transmission unit 319 in step S119. Then, the transmitter 319 establishes an RAB connection (S123), and simultaneously transmits the buffered 119 packet, that is, a packet received from a specific address while the timer is running, to the mobile terminal 100 (S125).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (8)

In the method for transmitting a packet received from the Internet network to a mobile terminal connected to a wireless access network,
Determining, by the packet switching support node, whether the originating address of the received packet is a predetermined specific address;
Collecting a packet received from the specific address for a predetermined time in case of the specific address; And
Transmitting the collected packet to the mobile terminal
Packet transmission method comprising a. The method of claim 1,
Before the determining step,
Setting an address of a server sending a push message to the specific address;
Packet transmission method further comprising. The method according to claim 1 or 2,
The collecting step,
Checking whether a wireless connection with the wireless access network is established;
When the wireless connection is established, transmitting the received packet to the mobile terminal;
Driving a predefined timer when the wireless connection is not established; And
Buffering packets received from the particular address until the timer expires
Packet transmission method comprising a. The method of claim 3,
The transmitting step,
Establishing a wireless connection; And
Transmitting a buffered packet to the mobile terminal in which the wireless connection is established.
Packet transmission method comprising a. In the packet switching support node for transmitting a packet received from the Internet network to a mobile terminal connected to a wireless access network,
A determination unit which determines whether the originating address of the received packet is a predetermined specific address;
A buffering unit configured to collect packets received from the specific address for a predetermined time in the case of the specific address; And
Transmitter for transmitting the packet collected by the buffering unit to the mobile terminal
Packet switched support node comprising a. The method of claim 5,
Setting unit for setting the address of the server for sending a push message to the specific address
Packet switching support node further comprising. The method according to claim 5 or 6,
The determination unit,
When the received packet is received from the specific address, check whether a wireless connection is established with the wireless access network. If the wireless connection is not established, a predetermined timer is driven until the timer expires. Requesting the buffering unit to buffer a packet received from a specific address, and requesting the transmitting unit to transmit the received packet when the wireless connection is established. The method of claim 7, wherein
Wherein the transmission unit comprises:
And when the timer driven by the buffering unit expires, establishes a wireless connection according to a request of the buffering unit, and transmits a buffered packet output from the buffering unit to the mobile terminal in which the wireless connection is established.

Images