KR20150079102A - System and method for data parallel transmission in heterogeneous network - Google Patents

System and method for data parallel transmission in heterogeneous network Download PDF

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Publication number
KR20150079102A
KR20150079102A KR1020130169105A KR20130169105A KR20150079102A KR 20150079102 A KR20150079102 A KR 20150079102A KR 1020130169105 A KR1020130169105 A KR 1020130169105A KR 20130169105 A KR20130169105 A KR 20130169105A KR 20150079102 A KR20150079102 A KR 20150079102A
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KR
South Korea
Prior art keywords
communication network
status information
network frame
wireless lan
data
Prior art date
Application number
KR1020130169105A
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Korean (ko)
Inventor
김병석
김성관
조준호
Original Assignee
주식회사 케이티
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Priority to KR1020130169105A priority Critical patent/KR20150079102A/en
Publication of KR20150079102A publication Critical patent/KR20150079102A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The heterogeneous network parallel transmission system according to an embodiment of the present invention receives terminal status information from a terminal, and when the terminal status information indicates that transmission of a mobile communication network frame is not completed, And a heterogeneous network server that transmits download status information including an amount of data transmitted in a mobile communication network frame to an AP according to a request, the AP refers to the download status information, And generates schedule information corresponding to a new wireless LAN communication network frame and transmits the generated schedule information to the mobile station.

Description

TECHNICAL FIELD [0001] The present invention relates to a system and method for transmitting data in parallel,

The present invention relates to a heterogeneous network concurrent transmission system and method, and more particularly, to a heterogeneous network concurrent transmission system and method capable of preventing data transmission from being disconnected or disconnected due to poor quality and service of a specific network.

Recently, as the mobile communication network develops, various information can be received using not only a mobile phone but also a terminal such as a smart phone or a tablet PC. At this time, the terminal is always connected to one communication network in a heterogeneous network having different infrastructures accessible through its own wireless communication resources.

In this case, when the terminal accesses the content server and receives data, the terminal can receive data through the wireless LAN or the mobile communication network. In this case, when the user is connected to the mobile communication network and the Wi-Fi wireless LAN is available for connection while downloading data from the content server using the terminal, due to the burden or concern of the generation cost due to the amount of data currently downloaded You can also switch to a Wi-Fi wireless network. However, when the connection is switched, the access IP assigned to the terminal is changed, so that the user must newly request the content data received previously and download the content data again.

A problem to be solved by the present invention is to provide a heterogeneous data concurrent transmission system and method capable of not only increasing the efficiency of a network resource but also reducing a downloading time and using Wi-Fi more efficiently by using a parallel transmission technique more effectively.

According to an aspect of the present invention, there is provided an access point (AP) for receiving terminal status information from a terminal and requesting download status information when the terminal status information indicates that transmission of a mobile communication network frame is not completed; And a heterogeneous network server for transmitting download status information including a transmitted data amount of a mobile communication network frame to the AP according to the request, wherein the AP refers to the download status information, A new wireless LAN communication network frame including a part of data not transmitted is generated and schedule information corresponding to the new wireless LAN communication network frame is generated and transmitted to the mobile station .

The download status information may further include a transmission rate of the mobile communication network, and the AP may set the new wireless LAN communication network frame according to the transmission rate and the data amount.

The UE status information may be generated by the UE when downloading of a wireless LAN communication network frame is completed.

According to another aspect of the present invention, there is provided a method for simultaneously transmitting data through a heterogeneous network in a heterogeneous network concurrent transmission system, the method comprising: receiving, by an Access Point (AP) Requesting download status information if the transmission of the frame is not complete; Transmitting, by the heterogeneous network server, the download status information including the amount of transmitted data of the mobile communication network frame to the AP according to the request; Setting a new wireless LAN communication network frame including a part of data not transmitted in the mobile communication network frame by the AP with reference to the download status information; And generating the schedule information corresponding to the new wireless LAN communication network frame by the AP and transmitting the generated schedule information to the mobile station.

Wherein the download status information further includes a transmission rate of the mobile communication network and the AP refers to the download status information and establishes a new WLAN network frame including a part of data not transmitted in the mobile communication network frame The AP may set the new wireless LAN communication network frame according to the transmission rate and the data amount.

The UE status information may be generated by the UE when downloading of a wireless LAN communication network frame is completed.

According to another aspect of the present invention, there is provided a method for receiving download status information including an amount of data transmitted in a mobile communication network frame from a mobile station, the download status information indicating that download status information indicates that transmission of a mobile communication network frame is not completed A new wireless LAN communication network frame including a part of data not transmitted in the mobile communication network frame is set with reference to the download status information, and schedule information corresponding to the new wireless LAN communication network frame is generated, Transmitting heterogeneous network server; And an access point (AP) for downloading the new wireless LAN communication network frame from the content transmission apparatus and transmitting the new wireless LAN communication network frame to the terminal when receiving a download request of the new wireless LAN communication network frame from the terminal, System is provided.

The download status information may further include a transmission rate of the mobile communication network, and the heterogeneous network server may set the new WLAN network frame according to the transmission rate and the data amount.

The download status information may be generated by the terminal when downloading of a wireless LAN communication network frame is completed.

According to another aspect of the present invention, there is provided a method for transmitting data in parallel in a heterogeneous network concurrent transmission system through a heterogeneous network, the heterogeneous network server comprising: download status information including an amount of data transmitted in a mobile communication network frame from the terminal; Receiving; If the download status information indicates that the download status information indicates that the transfer of the mobile communication network frame is not completed, the heterogeneous network server refers to the download status information and includes a part of data not transmitted in the mobile communication network frame Setting a new wireless LAN communication network frame; Generating the schedule information corresponding to the new wireless LAN communication network frame and transmitting the generated schedule information to the terminal; And downloading the new wireless LAN communication network frame from the content transmitting apparatus and transmitting the new wireless LAN network frame to the terminal when the access point receives the download request of the new wireless LAN network frame from the terminal. A transmission method is provided.

Wherein the download status information further includes a transmission rate of the mobile communication network and the step of setting a new wireless LAN communication network frame including a part of data not transmitted in the mobile communication network frame by referring to the download status information comprises: The heterogeneous network server may set the new WLAN network frame according to the transmission rate and the amount of data.

The download status information may be generated by the terminal when downloading of a wireless LAN communication network frame is completed.

The parallel network data transmission method according to the present invention not only improves the efficiency of the network resource but also reduces the downloading time by more effectively using the parallel transmission technology and expects the effect of offloading the wireless LAN network by increasing the use of the wireless LAN communication network .

1 is a system diagram illustrating a heterogeneous data concurrent transmission system according to an embodiment of the present invention.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a diagram illustrating a structure of an Ack message transmitted by a heterogeneous network data transmission system according to an embodiment of the present invention.
4 is a diagram illustrating TS information transmitted by a heterogeneous network concurrent transmission system according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a heterogeneous network data parallel transmission method according to a first embodiment of the present invention; FIG.
FIG. 6 is a flowchart illustrating a heterogeneous network data parallel transmission method according to a second embodiment of the present invention; FIG.

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various transformations can be applied and various embodiments can be made. It is to be understood that the following description covers all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In the following description, the terms first, second, and the like are used to describe various components and are not limited to their own meaning, and are used only for the purpose of distinguishing one component from another component.

Like reference numerals used throughout the specification denote like elements.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms " comprising, "" comprising, "or" having ", and the like are intended to designate the presence of stated features, integers, And should not be construed to preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6 attached hereto.

FIG. 1 is a diagram illustrating a heterogeneous network data transmission communication system according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an example of data frame transmission in a heterogeneous network concurrent transmission system according to an embodiment of the present invention. FIG. 3 is a diagram illustrating a structure of an Ack message transmitted by a heterogeneous network data transmission system according to an embodiment of the present invention. FIG. 4 is a diagram illustrating a structure of a heterogeneous network data transmission system according to an embodiment of the present invention. FIG. 5 is a diagram illustrating TS information to be transmitted. FIG.

1, a heterogeneous network parallel transmission communication system according to an embodiment of the present invention includes a terminal 500, an access point (AP) 100, a content transmission apparatus 400, and a heterogeneous network server 200 can do.

Specifically, the terminal 500 may be a communication terminal of any one of a cellular phone, a smart phone, and a tablet computer. The terminal 500 may include a plurality of communication modules or dual communication modules capable of communicating with mobile communication networks such as a wireless LAN communication network (WiFi network) and LTE and 3G. The terminal 500 accesses the content transmission apparatus 400 connected to the wireless LAN communication network or the mobile communication network to download multimedia data such as moving pictures, movies, and music files, or download other data.

At this time, the internal communication modules can be activated so that the terminal 500 can access both the wireless LAN and the mobile communication network.

In the heterogeneous data concurrent transmission system according to the embodiment of the present invention, data transmission is performed by simultaneously using a wireless LAN communication network and a mobile communication network. 2, the data is transmitted to a wireless LAN communication network and a mobile communication network including data of a capacity corresponding to a transmission rate of the wireless LAN communication network and a mobile communication network, It is preferable to transmit the frames separately.

For example, the data having the total amount of data to be transmitted to the terminal 500, that is, the total amount of data to be transmitted (Z) may be a wireless LAN communication network frame including data to be transmitted through the wireless LAN communication network, As shown in FIG. At this time, the number of data frames (n_wifi) to be transmitted to the wireless LAN communication network and the number of data frames (n_LTE / 3G) to be transmitted to the mobile communication network are set to be one and can be simultaneously transmitted from the content providing server 400 to the terminal 500 have.

If data transmission through the mobile communication network is not completed due to a decrease in the quality of service of the mobile communication network, an increase in traffic within the network, or a physical cause, some of the data of the mobile communication network frame to be transmitted through the mobile communication network may be transmitted through the wireless LAN communication network Lt; / RTI >

To this end, the terminal 500 transmits the terminal status information indicating whether or not the data of the mobile communication network frame has been completely downloaded to the AP 100, or transmits the terminal status information including the download data amount and the data transmission rate And transfer the download status information to the heterogeneous network server 200. [ For example, after completing the reception of the wireless LAN communication network frame, the AT 500 transmits an Ack message including download status information including a message indicating whether the mobile communication network frame has been completely downloaded to the AP 100. Also, the terminal 500 transmits the download status information through the action frame for the management type of the control frame field of the Ack message according to the standard IEEE 802.11 as illustrated in FIG. In addition, according to the implementation method, the terminal 500 can transmit the download status information including the downloaded data amount and the transmission rate to the heterogeneous network server 200 directly through the mobile communication network.

The AP 100 checks the terminal status information of the terminal 500 with the heterogeneous network server 200. When the download is in progress through the mobile communication network, the AP 100 transmits download status information including the amount of data downloaded through the mobile communication network From the heterogeneous network server 200 and receives the request.

Here, if the data frame allocated through the mobile communication network is not completely downloaded to the terminal 500, the AP 100 refers to the download amount of the download status information and the transmission rate through the current mobile communication network, Generates schedule information corresponding to a new wireless LAN communication network frame (210 in FIG. 2) to be received through the wireless LAN communication network, and transmits the corresponding schedule information to a traffic stream information field To the terminal 500 by inserting it into the schedule field of the traffic stream information. At this time, the schedule information may include an offset representing a starting point of a new wireless LAN communication network frame and a data amount corresponding to a new wireless LAN communication network frame from the corresponding offset.

The heterogeneous network server 200 may receive the download status information including the amount of data of the mobile communication network frame transmitted from the terminal 500 or the content transmission apparatus 400 through the mobile communication network. The heterogeneous network server 200 stores download status information and transmits the download status information to the AP 100 when the AP 100 requests the download status information. The heterogeneous network server 200 may receive a schedule information request from the AP 100 or the terminal 500 and may schedule a wireless LAN network frame to be received via the wireless LAN communication network And transmits the generated information to the AP 100 or the terminal 500.

Hereinafter, the process of transmitting data by the above-described heterogeneous network parallel transmission communication system will be described in detail.

FIG. 5 is a flowchart sequentially illustrating a process of performing parallel data interleaving in a heterogeneous network parallel transmission communication system according to a first embodiment of the present invention. Referring to FIG.

Referring to FIG. 5, in step 110, the heterogeneous network server 200 divides the total data into a wireless LAN communication network frame and a mobile communication network frame by receiving a data transmission request from the terminal 500, And transmits the schedule information to the terminal 500 to receive the mobile communication network frame through the wireless LAN communication network and the mobile communication network, respectively. Accordingly, the terminal 500 downloads data through the heterogeneous network according to the schedule information.

In step 120, the content transmitting apparatus 400 completes the transmission of the wireless LAN communication network frame.

In step 130, the AT 500 transmits an Ack message to the AP 100 to notify the completion of the transmission of the WLAN communication network. At this time, the terminal 500 may include the terminal status information indicating whether the terminal 500 has completed transmission of the mobile communication network frame in the Ack message.

In step 140, the AP 100 stores the UE status information or updates the previously stored UE status information with the UE status information received in step 130 when storing the previous UE status information. Also, the AP 100 requests the heterogeneous network server 200 for download status information.

In step 150, the heterogeneous network server 200 transmits download status information including the data amount of the mobile communication network frame transmitted through the mobile communication network and the transmission rate according to the mobile communication network to the AP 100. At this time, the heterogeneous network server 200 may periodically receive the download status information from the terminal 500 or the content transmission apparatus 400 and update the download status information. Alternatively, the heterogeneous network server 200 may receive the download status information from the terminal 500 at the time of step 130.

In step 160, the AP 100 checks the download status information to determine whether the transmission of the entire data is completed.

When the transmission of the entire data is completed in step 160, the data transmission process is terminated.

If the transmission of the entire data is not completed in step 160, the AP 100 generates and transmits schedule information to the terminal 500 in step 170. At this time, the AP 100 can generate the schedule information with reference to the download status information.

In step 175, the terminal 500 receives the data of the wireless LAN communication network frame through the wireless LAN communication network according to the schedule information. Thereafter, the process from step 120 is continued.

Although the process of generating the schedule information by receiving the download status information has been described in steps 140 to 170, the heterogeneous network server 200 is changed to generate the schedule information according to the implementation method as described below .

For example, in step 140, the AP 100 can update the UE status information and request the schedule information to the heterogeneous network server 200. [

In step 150, the heterogeneous network server 200 confirms the download status information and sets some of the remaining data of the mobile communication network frame as a wireless LAN communication network frame when the data transmission of the mobile communication network frame is not completed. And transmits the generated schedule information to the AP 100. [0050] FIG. In this case, when the frame data transmission is completed, the heterogeneous network server 200 transmits to the AP 100 the schedule information having the transmission amount set to 0 or a transmission completion message indicating that the data transmission is completed.

In step 160, the AP 100 checks the schedule information or the transmission completion message to determine whether the data transmission is completed.

If it is determined in step 160 that the data transfer is completed, the data transfer process is terminated.

If it is determined in step 170 that the data transmission has not been completed, the AP 100 transmits the schedule information to the terminal 500.

FIG. 6 is a flowchart sequentially illustrating a process of performing parallel data interleaving in a heterogeneous network parallel transmission communication system according to a second embodiment of the present invention.

In step 210, the heterogeneous network server 200 divides the total data into a wireless LAN communication network frame and a mobile communication network frame, and transmits a wireless LAN communication network frame and a mobile communication network frame, respectively, And transmits the schedule information to the terminal 500 for reception via the LAN communication network and the mobile communication network. Accordingly, the terminal 500 downloads data through the heterogeneous network according to the schedule information.

In step 215, the terminal 500 transmits download status information including the amount of data and the transmission rate of the mobile communication network frame to the heterogeneous network server 200 as the download of the wireless LAN communication network frame is completed.

In step 220, the heterogeneous network server 200 stores or updates download status information.

In step 230, the heterogeneous network server 200 checks download status information to determine whether the download of the mobile communication network frame is completed.

If it is determined in step 230 that the download of the mobile communication network frame is completed, the data transmission process is terminated.

In step 240, when it is determined that the download of the mobile communication network frame is incomplete, the heterogeneous network server 200 newly sets the mobile communication network frame by referring to the download status information, generates schedule information according to the mobile communication network frame, To the terminal (500).

In step 250, the terminal 500 downloads the data of the new wireless LAN communication network frame through the wireless LAN communication network according to the schedule information.

Then, the process from step 215 is performed.

As described above, the heterogeneous network data transmission method according to an embodiment of the present invention not only improves the efficiency of the network resources but also reduces the downloading time by using the parallel transmission technology more effectively, increases the usage of the Wi-Fi network, The loading effect can be expected.

AP: 100
Mobile network server: 200
Content server: 400
Terminal: 500

Claims (12)

An access point (AP) for receiving the mobile station status information from the mobile station and requesting the download status information when the mobile station status information indicates that the mobile station is not completely transmitted; And
A heterogeneous network server for transmitting download status information including a transmitted data amount of a mobile communication network frame to the AP according to the request;
, ≪ / RTI &
The AP refers to the download status information, sets a new wireless LAN communication network frame including a part of data not transmitted in the mobile communication network frame, generates schedule information corresponding to the new wireless LAN communication network frame, Wherein the data transmission is performed in the same time slot.
The method according to claim 1,
Wherein the download status information further includes a transmission rate of the mobile communication network,
And the AP sets the new wireless LAN communication network frame according to the transmission rate and the data amount.
The method according to claim 1,
Wherein the UE state information is generated by the UE when the download of the wireless LAN communication network frame is completed.
A method for parallel transmission of data through a heterogeneous network,
Requesting download status information when an Access Point (AP) receives terminal status information from a terminal and the terminal status information indicates that transmission of a mobile communication network frame is not completed;
Transmitting, by the heterogeneous network server, the download status information including the amount of transmitted data of the mobile communication network frame to the AP according to the request;
Setting a new wireless LAN communication network frame including a part of data not transmitted in the mobile communication network frame by the AP with reference to the download status information; And
The AP generates schedule information corresponding to the new wireless LAN communication network frame and transmits the generated schedule information to the terminal;
The method comprising the steps of:
5. The method of claim 4,
Wherein the download status information further includes a transmission rate of the mobile communication network,
The AP setting up a new wireless LAN communication network frame including a part of data not transmitted in the mobile communication network frame by referring to the download status information,
And the AP is setting the new wireless LAN communication network frame according to the transmission rate and the data amount.
5. The method of claim 4,
Wherein the UE status information is generated by the UE when downloading of a wireless LAN communication network frame is completed.
When the download status information indicates that the transfer of the mobile communication network frame is not completed, the download status information including the amount of data transmitted in the mobile communication network frame is received from the terminal, A heterogeneous network server for establishing a new WLAN network frame including a part of data not transmitted in the mobile communication network frame, generating schedule information corresponding to the new WLAN network frame and transmitting the generated schedule information to the terminal; And
An AP (Access Point) for downloading the new wireless LAN communication network frame from the content transmission apparatus and transmitting the new wireless LAN communication network frame to the terminal when receiving a download request of the new wireless LAN communication network frame from the terminal;
Wherein the data transmission system comprises:
8. The method of claim 7,
Wherein the download status information further includes a transmission rate of the mobile communication network,
Wherein the heterogeneous network server sets the new wireless LAN communication network frame according to the transmission rate and the data amount.
8. The method of claim 7,
Wherein the download status information is generated by the terminal when downloading of a wireless LAN communication network frame is completed.
A method for parallel transmission of data through a heterogeneous network,
The heterogeneous network server receiving download status information including a transmitted data amount of a mobile communication network frame from a terminal;
If the download status information indicates that the download status information indicates that the transfer of the mobile communication network frame is not completed, the heterogeneous network server refers to the download status information and includes a part of data not transmitted in the mobile communication network frame Setting a new wireless LAN communication network frame;
Generating the schedule information corresponding to the new wireless LAN communication network frame and transmitting the generated schedule information to the terminal; And
When an access point (AP) receives a download request for the new wireless LAN communication network frame from the terminal, downloading the new wireless LAN communication network frame from the content transmission apparatus and transmitting the frame to the terminal
The method comprising the steps of:
11. The method of claim 10,
Wherein the download status information further includes a transmission rate of the mobile communication network,
Setting a new wireless LAN communication network frame including a part of data not transmitted in the mobile communication network frame with reference to the download status information,
Wherein the heterogeneous network server sets the new wireless LAN communication network frame according to the transmission rate and the amount of data.
11. The method of claim 10,
Wherein the download status information is generated by the terminal when downloading of a wireless LAN communication network frame is completed.
KR1020130169105A 2013-12-31 2013-12-31 System and method for data parallel transmission in heterogeneous network KR20150079102A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022113616A1 (en) * 2020-11-25 2022-06-02 株式会社デンソー Wireless communication control device, wireless communication device, and wireless communication control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022113616A1 (en) * 2020-11-25 2022-06-02 株式会社デンソー Wireless communication control device, wireless communication device, and wireless communication control method

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