KR101328732B1 - Apparatus for simultaneously transmitting data in heterogeneous network - Google Patents
Apparatus for simultaneously transmitting data in heterogeneous network Download PDFInfo
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- KR101328732B1 KR101328732B1 KR1020120028457A KR20120028457A KR101328732B1 KR 101328732 B1 KR101328732 B1 KR 101328732B1 KR 1020120028457 A KR1020120028457 A KR 1020120028457A KR 20120028457 A KR20120028457 A KR 20120028457A KR 101328732 B1 KR101328732 B1 KR 101328732B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- 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
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Abstract
Description
The present invention relates to a data simultaneous transmission service scheme, and more particularly, to provide a simultaneous transmission service for transmitting / receiving partial data obtained by dividing data using a plurality of heterogeneous networks, wherein different latency of heterogeneous networks is provided. In the process of reordering the received partial data of the receiving side considering the above, by using the existing linked-list method and the array method, the cost of storing each received partial data in the buffer and the upper part of each partial data stored in the buffer The present invention relates to a heterogeneous network-based simultaneous data transmission / reception apparatus and a transmission / reception method capable of effectively preventing performance degradation due to partial data rearrangement by reducing the cost of transmitting data.
Recently, operators often provide services based on multiple wireless technologies at the same time. In Korea, major operators are building and servicing networks by introducing WCDMA, CDMA, WiBro and WLAN (WiFi) technology, which is the nearest wireless network. In addition, LTE (Long Term Evolution) network is actively being introduced recently.
In the heterogeneous network environment in which a plurality of networks are mixed, a current method of using a data service through a terminal device is a network selection method by directly changing a terminal device user, and a method in which controllability of a provider is excluded This is a passive approach when considering the position of the business operator.
Meanwhile, as various wireless devices such as smartphones and tablet PCs are increasing and data rates are becoming cheaper, and at the same time, various large-capacity data services are increasing, the network load ratio of operators is rapidly rising, It is a threat from the side.
Accordingly, in a heterogeneous network environment where a plurality of networks are mixed, a new service scheme for efficiently selecting a network of a terminal device according to the state of the network and efficiently using the selected network is desired.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a simultaneous transmission service for transmitting / receiving partial data obtained by dividing data using a plurality of heterogeneous networks. In the process of rearranging the received partial data of the receiving side considering the different latency of the network, by using the existing linked-list method and the array method, the cost of storing each received partial data in the buffer and each part stored in the buffer By reducing the cost of delivering data to the upper layer, it is effectively preventing the performance degradation due to partial data rearrangement.
According to a first aspect of the present invention, there is provided a heterogeneous network-based data concurrent transmission / reception apparatus including: a communication unit for receiving partial data segmented from data to be transmitted through two or more access networks; And a control unit storing the received partial data in each partial data storage area and storing address information of each partial data storage area in each address information storage area related to order information of the respective partial data.
Preferably, the control unit, when the respective address information storage area for storing the address information is continuous, confirming the address information stored in each of the consecutive address information storage area and corresponding to the confirmed address information The partial data stored in each of the partial data storage areas may be acquired and transferred to the upper layer in the order of the respective address information storage areas.
Preferably, the control unit may store the received partial data in each of the partial data storage areas sequentially sequentially in the receiving order.
Preferably, each of the address information storage areas is matched with a consecutive storage address, and the controller is configured to match the address information of each of the partial data storage areas with each of the address information storage areas matching the storage address corresponding to the order information. Can be stored in
Preferably, when the order information of the additional partial data received after the partial data transferred to the upper layer is not continuous with the order information of the partial data transferred to the upper layer, the control point is when the additional partial data is received. The partial data stored in the partial data storage area may be transferred to the upper layer after a specific reception wait time from the.
According to a second aspect of the present invention, there is provided a method for simultaneously transmitting and receiving heterogeneous network-based data, comprising: receiving partial data segmented from data to be transmitted through two or more access networks; A partial data storage step of storing each received partial data in each partial data storage area; And storing the address information of each partial data storage area in each address information storage area related to the order information of each partial data.
Preferably, in the partial data storage step, each of the received partial data may be stored in each of the partial data storage areas sequentially sequentially in the receiving order.
Preferably, when each of the address information storage areas for storing the respective address information is continuous, the address information of each of the partial data storage areas stored in each of the consecutive address information storage area is confirmed and the identified each The method may further include acquiring partial data stored in the partial data storage area and transferring the partial data stored in the partial data storage area to the upper layer in the order of the consecutive address information storage areas.
Preferably, when the order information of the additional partial data received after the partial data transferred to the upper layer is not continuous with the order information of the partial data delivered to the upper layer, a specific reception wait from the time of receiving the additional partial data The method may further include transferring the partial data stored in the partial data storage area to the upper layer after time.
Accordingly, according to the heterogeneous network-based simultaneous data transmission / reception apparatus and transmission / reception method of the present invention, in an environment for providing a simultaneous transmission service for transmitting / receiving partial data obtained by dividing data using a plurality of heterogeneous networks, In the process of rearranging the received partial data of the receiving side considering the different latency, the existing linked-list method and the array method are mixed so that the cost of storing each received partial data in the buffer and each partial data stored in the buffer By reducing the cost of transferring to the upper layer, it is possible to effectively prevent performance degradation due to partial data reordering.
1 is a block diagram illustrating a heterogeneous network-based data concurrent transmission system according to a preferred embodiment of the present invention.
2 is a block diagram illustrating a configuration of a heterogeneous network-based data concurrent transmission / reception apparatus according to a preferred embodiment of the present invention.
3 to 5 are exemplary views showing the structure of the partial data storage area and the address information storage area and an example of information storage according to an embodiment of the present invention.
6 is a flowchart illustrating a control flow of a heterogeneous network-based data transmission system according to a preferred embodiment of the present invention.
7 is a flowchart illustrating a flow of a heterogeneous network-based simultaneous data transmission and reception method according to an embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 illustrates a heterogeneous network-based data concurrent transmission system according to a preferred embodiment of the present invention.
As shown in FIG. 1, the heterogeneous network-based data concurrent transmission system according to the present invention includes a
Here, two or more networks, i.e., heterogeneous networks, may include WCDMA, CDMA, WiBro, WLAN (WiFi) and Long Term Evolution (LTE).
In the present invention, for convenience of explanation, a first network (hereinafter referred to as a "3G network"), which refers to a wireless packet service network (WCDMA) among two or more networks, and a
Furthermore, the heterogeneous network-based data concurrent transmission system according to the present invention includes an
The
Accordingly, the heterogeneous network-based data concurrent transfer service according to the present invention divides one piece of data between the
At this time, the
Therefore, since the simultaneous transmission service provided by the present invention simultaneously transmits partial data segmented from one data using a plurality of heterogeneous networks (e.g., 3G and WiFi), a plurality of heterogeneous It is very important to restore partial data to be transmitted by receiving partial data received through a network (e.g., 3G and WiFi) without loss or loss and combining the partial data according to the dividing order.
However, there is a difference between the latency of each network because the network quality (throughput, delay, loss, etc.) between each network is different from each other and the network state of each network is variable in real time. Therefore, even if each piece of partial data is simultaneously transmitted using a plurality of heterogeneous networks (e.g., 3G and WiFi), each actual network (e.g., 3G and WiFi) is transmitted from the
On the other hand, according to the TCP retransmission rule, as the duplicate ACK (Dupack) is received a certain number of times (for example, three times) from the receiving-side apparatus receiving the data (partial data packet), the corresponding data (partial data packet) And there is a redundant ACK based retransmission operation for retransmitting.
Therefore, the
As a method of partial data rearrangement on the receiving side, a linked-list method and an array method exist.
The linked-list method stores partial data received through heterogeneous networks in an internal receiving buffer in the order in which they are received. Since the partial data is stored in the receiving order, the partial data is applied to an upper layer, that is, an application using a simultaneous transmission service. Since each time of transmission, the sequence number (sequence number) of each stored partial data must be checked and searched accordingly, which has a problem of deterioration in the receiving apparatus.
In addition, the array method checks the sequence number of the partial data whenever the partial data is received through the heterogeneous network, searches for the sequence information of each partial data stored in the reception buffer, Since all partial data must be moved according to the order information, there is a problem of performance degradation inside the receiving device.
Therefore, in the present invention, in the environment for providing simultaneous transmission service, in the partial data realignment process of the receiving device, it is necessary to store each partial data received by using the existing linked-list method and the array method in a buffer. We propose a configuration that can effectively prevent the performance degradation due to partial data rearrangement by reducing the cost of transferring the cost and each partial data stored in the buffer to the upper layer.
The
Then, the
That is, when the
In this case, the
In addition, the
Accordingly, the
More specifically, the
Accordingly, the
In more detail, the
Then, the
Here, each partial data storage area and address information storage area correspond to the reception buffer.
That is, referring to FIG. 3, the
Accordingly, the
For example, referring to FIG. 4, when the partial
In addition, the
That is, the
4, the
And, when the transmission event to the upper layer for the partial data stored in the reception buffer occurs, the
Here, the higher layer may be an application using a simultaneous transmission service in the
Therefore, when the upper layer is continuously transmitted without omission based on the order information (eg, 0, 1, 2) of the partial data to be transmitted as described above, the transmitted target data is combined according to the order information Will restore.
On the other hand, the upper layer, if the missing order information (eg, 3) is confirmed based on the order information (eg, 4, 5, 6) of the partial data transmitted as described above, and confirms the missing according to the general TCP retransmission rules In response to the partial data, a reception response (eg, Dup Ack) requesting retransmission is generated and provided to the
On the other hand, in the foregoing description, the case where the
In addition, in the simultaneous transmission service to which the present invention is applied, the
Hereinafter, the configuration of the heterogeneous network-based data concurrent transmission / reception apparatus, that is, the reception-side apparatus according to the present invention will be described in more detail with reference to FIG. The reference number of the
The heterogeneous network-based data transmission / reception apparatus, that is, the receiving
The
Accordingly, the
The controller 130 stores the received partial data in each partial data storage area in the order of reception.
The controller 130 stores the address information of each partial data storage area in each address information storage area related to the order information of the respective partial data.
Here, each partial data storage area and address information storage area correspond to a reception buffer.
That is, referring to FIG. 3, the heterogeneous network-based data transmission /
Here, a method of allocating space for the partial
The maximum used memory size of the partial
As such, the heterogeneous network-based data simultaneous transmission /
Referring to the operation of the controller 130 again, the controller 130 stores the received partial data in order from the first partial data storage area of the empty partial data storage areas in the order of receiving them.
For example, referring to FIG. 4, when the partial
The controller 130 may convert address information (eg, node x) of the respective partial data storage areas into order information of the partial data based on the order information of the respective partial data stored in each partial data storage area. The address
That is, the controller 130 matches the address information of each partial data storage area in which each partial data is stored with the storage address corresponding to the order information of the related partial data and stores the address information in the address information storage area, thereby saving each partial data storage area. Address information is stored in the address information storage area in order according to the order information of each piece of data.
4, the controller 130 matches and stores address information of the partial data storage area in which the partial data of the
Then, when the transmission event to the upper layer for the partial data stored in the reception buffer occurs, the control unit 130 is the corresponding partial data according to the address information of each partial data storage area stored in order in the address
That is, when each of the address information storage areas for storing address information is continuous, the controller 130 checks the address information stored in each of the consecutive address information storage areas and corresponds to the confirmed address information. The partial data stored in each partial data storage area may be obtained and transferred to the upper layer in the order of the respective address information storage areas.
Specifically, the controller 130 stores the address information in response to the at least one continuous sequence information when the partial data of the at least one continuous sequence information without the partial data of the unreceived previous sequence information is confirmed. According to the address information of each partial data storage area stored in order in the area, the respective partial data stored in the respective partial data storage areas may be sequentially obtained and transferred to the upper layer.
That is, when the partial data of at least one continuous sequence information without the partial data of the unreceived previous sequence information is confirmed, the controller 130 may recognize that the transmission event is generated to a higher layer.
For example, referring to FIG. 4, the controller 130 may include
At this time, the control unit 130 of each of the partial data storage area, that is,
Here, the higher layer may be an application using a simultaneous transmission service in the
Therefore, when the upper layer is continuously transmitted without omission based on the order information (eg, 0, 1, 2) of the partial data to be transmitted as described above, the transmitted target data is combined according to the order information Will restore.
On the other hand, after the partial data of the
Then, the controller 130 matches the address information of the partial data storage area in which the partial data of the
Then, when the transmission event to the upper layer for the partial data stored in the reception buffer occurs, the control unit 130 is the corresponding partial data according to the address information of each partial data storage area stored in order in the address
That is, when the order information of the additional partial data received after the partial data transferred to the upper layer is not continuous with the order information of the partial data delivered to the upper layer, the controller 130 may receive the data from the time of receiving the additional partial data. After a specific reception wait time, the partial data stored in the partial data storage area may be delivered to the upper layer.
Specifically, the control unit 130, the partial data having the order information after the order information of the unreceived partial data is confirmed, the specific part received first after the order information of the unreceived partial data and stored in the partial data storage area When a specific reception waiting time has elapsed from the reception of the data, the partial data stored in the partial data storage area may be obtained and transferred to the upper layer.
That is, when the partial data having the order information after the order information of the unreceived partial data is confirmed, the controller 130 receives the additional partial data received first after the order information of the unreceived partial data and stored in the partial data storage area. By counting a specific reception waiting time based on a time point, when the reception waiting time elapses, it may be recognized as a generation of a delivery event to a higher layer.
For example, referring to FIG. 5, the controller 130 receives after partial data (eg, 0, 1, 2) transferred to an upper layer based on a storage address stored in the address
Therefore, the controller 130 may determine a specific reception waiting time based on the reception time of the additional data, that is, the first data received after the
Thus, the controller 130, while counting the reception waiting time, if the partial data of the
At this time, the control unit 130 of each of the partial data storage area, that is,
Therefore, the upper layer, when the missing order information (eg 3) is confirmed based on the order information (
As described above, the heterogeneous network-based data transmission and reception apparatus according to the preferred embodiment of the present invention buffers each partial data received by storing partial data received through the heterogeneous network in the partial data storage area in the order of reception. Saves the address information (ie, node x) of the partial data storage area stored in the corresponding storage address of the address information storage area that is close to 0, and the time cost required to store the data is close to 0. Afterwards, when partial data stored in the buffer is transferred to the upper layer, the partial data is acquired and transferred in order based on the address information of the partial data storage area stored in the storage address of the address information storage area in order. 0 time cost for navigation to the tier Since the closer, and to avoid performance degradation caused by data re-arrangement section effectively.
Hereinafter, an operation flow of heterogeneous network-based data transmission service according to a preferred embodiment of the present invention will be described with reference to FIGS. 6 and 7. Herein, for convenience of description, reference will be made to the names and reference numbers mentioned in FIGS. 5 to 5 as necessary.
First, an operation flow in a heterogeneous network-based data transmission system according to a preferred embodiment of the present invention will be described with reference to FIG. 6.
For convenience of description, referring to the downlink, the
That is, when the
At this time, the
In addition, the
Accordingly, the
In more detail, the
Accordingly, the
In more detail, the
Then, the
Here, each partial data storage area and address information storage area correspond to the reception buffer.
That is, referring to FIG. 3, the
Accordingly, the
For example, referring to FIG. 4, when the partial
In operation S60, the
That is, the
4, the
And, when the transmission event to the upper layer for the partial data stored in the reception buffer occurs, the
Here, the higher layer may be an application using a simultaneous transmission service in the
Therefore, when the upper layer is continuously transmitted without omission based on the order information (eg, 0, 1, 2) of the partial data to be transmitted as described above, the transmitted target data is combined according to the order information It will be restored (S90).
On the other hand, the upper layer, if the missing order information (eg, 3) is confirmed based on the order information (eg, 4, 5, 6) of the partial data transmitted as described above, and confirms the missing according to the general TCP retransmission rules In response to the partial data, a reception response (eg, Dup Ack) requesting retransmission is generated and provided to the
Hereinafter, referring to FIG. 7, a heterogeneous network-based simultaneous data transmission / reception method according to a preferred embodiment of the present invention, that is, an operation method of a receiving device will be described in detail.
In the heterogeneous network-based data simultaneous transmission and reception method according to the present invention, a plurality of pieces of partial data divided from data to be transmitted may be received from two or more access networks (eg, 3G, WiFi) from the
In the heterogeneous network-based data transmission / reception method according to the present invention, each received partial data is stored in each partial data storage area in the order of reception (S110).
In the heterogeneous network-based data transmission / reception method according to the present invention, the address information of each partial data storage area is determined based on the order information of the respective partial data stored in each partial data storage area. The data is stored in the address information storage area in order according to the information (S120).
Here, each partial data storage area and address information storage area correspond to a reception buffer.
That is, referring to FIG. 3, the heterogeneous network-based data transmission /
Accordingly, the heterogeneous network-based data transmission and reception method according to the present invention stores the received partial data in order from the first partial data storage area of the empty partial data storage areas in step S110 according to the received order.
For example, referring to FIG. 4, when the partial
The heterogeneous network-based data transmission / reception method according to the present invention may include address information (eg, x number) of each partial data storage area based on order information of each partial data stored in each partial data storage area in step S120. Nodes) are stored in the address
That is, in the heterogeneous network-based data transmission / reception method according to the present invention, the address information of each partial data storage area in which each partial data is stored is matched to the storage address corresponding to the order information of the related partial data to the address information storage area. By storing, the address information of each partial data storage area is stored in the address information storage area in order according to the order information of each partial data.
Therefore, referring to FIG. 4, the heterogeneous network-based data transmission / reception method according to the present invention may include address information, that is,
In the heterogeneous network-based data transmission and reception method according to the present invention, when a delivery event to a higher layer for partial data stored in a reception buffer occurs, the partial data storage areas of the partial data storage areas are sequentially stored in the address
Specifically, the heterogeneous network-based data simultaneous transmission and reception method according to the present invention determines whether partial data of at least one continuous sequence information without the partial data of unreceived previous sequence information is identified (S130).
That is, the heterogeneous network-based data simultaneous transmission / reception method according to the present invention may be recognized as a generation of a forwarding event to a higher layer when partial data of at least one continuous sequence information without the partial data of unreceived previous sequence information is identified. have.
In the heterogeneous network-based simultaneous data transmission / reception method according to the present invention, if the partial data of the at least one continuous sequence information without the partial data of the unreceived previous sequence information is determined as a result of step S130, the at least one continuous In response to the order information, the stored partial data may be sequentially obtained from the associated partial data storage area according to the address information of each partial data storage area stored in the address information storage area in order and transferred to the upper layer (S140).
For example, referring to FIG. 4, in the heterogeneous network-based data transmission / reception method according to the present invention, there is no partial data of unreceived previous order information based on a storage address stored in the address
At this time, heterogeneous network-based data transmission and reception method according to the present invention, each partial data storage area that is stored in the partial data of the
In this case, the upper layer is a heterogeneous network-based simultaneous data transmission /
Therefore, in the heterogeneous network-based simultaneous data transmission and reception method according to the present invention, when the upper layer is continuously transmitted without omission based on the order information (for example, 0,1,2) of the partial data transmitted as described above, the forwarding is performed. The data to be transmitted will be restored by combining the partial data according to the order information.
On the other hand, after the partial data of the
In the heterogeneous network-based data transmission and reception method according to the present invention, in step S120, by matching address information, that is,
Therefore, in the embodiment of FIG. 5, in the heterogeneous network-based data transmission / reception method according to the present invention, the partial data of at least one continuous sequence information without the partial data of the preceding sequence information not received as a result of the determination in step S130 is included. Will not be confirmed.
In this case, in the heterogeneous network-based data simultaneous transmission and reception method according to the present invention, the partial data having the order information after the order information of the unreceived partial data is confirmed, and the first received after the order information of the unreceived partial data is partial data. When a specific reception wait time has elapsed from the reception of the specific partial data stored in the storage area, the respective partial data stored from the respective partial data storage areas may be obtained and transferred to the upper layer.
That is, in the heterogeneous network-based data simultaneous transmission / reception method according to the present invention, when partial data having sequence information after the sequence information of unreceived partial data is confirmed, the partial data is first received after the sequence information of the unreceived partial data and stored. By counting a specific reception waiting time on the basis of the reception time of the specific partial data stored in the area, when the reception waiting time elapses, it can be recognized as the occurrence of a delivery event to a higher layer.
For example, referring to FIG. 5, in the heterogeneous network-based data transmission / reception method according to the present invention, after
Accordingly, in the heterogeneous network-based simultaneous data transmission / reception method according to the present invention, partial data of
At this time, heterogeneous network-based data transmission and reception method according to the present invention, each partial data storage area, that is,
Therefore, the upper layer, when the missing order information (eg 3) is confirmed based on the order information (
As described above, the heterogeneous network-based data transmission and reception method according to the preferred embodiment of the present invention buffers each partial data received by storing partial data received through the heterogeneous network in the partial data storage area in the order of reception. Saves the address information (ie, node x) of the partial data storage area stored in the corresponding storage address of the address information storage area that is close to 0, and the time cost required to store the data is close to 0. Afterwards, when partial data stored in the buffer is transferred to the upper layer, the partial data is acquired and transferred in order based on the address information of the partial data storage area stored in the storage address of the address information storage area in order. 0 time cost for navigation to the tier Since the closer, and to avoid performance degradation caused by data re-arrangement section effectively.
Meanwhile, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of both. A software module may reside in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Alternatively, the storage medium may be integrated into the processor. The processor and the storage medium may be included within an ASIC. The ASIC may be included in the user terminal device. In the alternative, the processor and the storage medium may be included as separate components within the user terminal device.
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, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
According to the heterogeneous network-based simultaneous data transmission / reception apparatus and transmission / reception method according to the present invention, in an environment for providing a simultaneous transmission service, in the process of realigning the reception partial data of the receiving side considering different latency of the heterogeneous network, the existing linked- By mixing the list method and the array method, the cost of storing each partial data received in the buffer and the cost of delivering each partial data stored in the buffer to the upper layer are effectively prevented, thereby preventing the performance degradation due to the partial data rearrangement. In this regard, the invention is an industrially available invention because the possibility of marketing or operating the applied device is not only sufficient for the use of the related technology as well as the use of the related technology as well as the degree of practical clarity. .
100: terminal device
110: communication unit 120: partial data storage area
125: address information storage area 130: control unit
Claims (9)
A control unit for storing the received partial data in each partial data storage area and storing address information of each partial data storage area in each address information storage area related to order information of the respective partial data;
The control unit,
And heterogeneous network-based data simultaneous transmission / reception apparatus for transmitting partial data stored in each partial data storage area to a higher layer according to the order of the respective address information storage areas.
The control unit,
When each of the address information storage areas for storing the address information is continuous, the address information stored in each of the consecutive address information storage areas is checked and stored in the partial data storage areas corresponding to the identified address information. And heterogeneous network-based data transmission / reception apparatus for acquiring partial data and transmitting the partial data to the upper layer according to the order of each address information storage area.
The control unit,
And heterogeneous network-based data simultaneous transmission / reception apparatus for storing the received partial data in each of the partial data storage areas sequentially sequentially in the receiving order.
Each address information storage area is matched with a consecutive storage address,
The control unit,
And heterogeneous network-based data transmission / reception apparatus for storing the address information of each partial data storage area in each address information storage area matched with a storage address corresponding to the order information.
The control unit,
If the order information of the additional partial data received after the partial data transferred to the higher layer is not continuous with the order information of the partial data delivered to the higher layer, the specific partial information is received after a specific reception waiting time from the reception point of the additional partial data. And heterogeneous network-based data simultaneous transmission / reception apparatus for transmitting partial data stored in a partial data storage area to the upper layer.
A partial data storage step of storing each received partial data in each partial data storage area; And
Storing the address information of each partial data storage area in each address information storage area related to the order information of each partial data,
And transmitting a partial data stored in each of the partial data storage areas to a higher layer according to the order of the respective address information storage areas.
The partial data storage step,
And heterogeneous network-based data simultaneous transmission / reception method for storing the received partial data in each of the partial data storage areas sequentially sequentially in the receiving order.
Wherein the delivering comprises:
When each of the address information storage areas where the respective address information is stored is continuous, the address information of each of the partial data storage areas stored in each of the consecutive address information storage areas is checked and the identified partial data storage areas are identified. And transmitting the partial data stored in the second layer to the upper layer according to the sequence of the consecutive address information storage areas.
If the order information of the additional partial data received after the partial data transferred to the higher layer is not continuous with the order information of the partial data delivered to the higher layer, the specific partial information is received after a specific reception waiting time from the reception point of the additional partial data. And transmitting the partial data stored in the partial data storage area to the upper layer.
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| KR101092478B1 (en) | 2009-09-16 | 2011-12-13 | (주)넷비젼텔레콤 | Method and System for transferring packets on heterogeneous links |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20070041096A (en) * | 2005-10-14 | 2007-04-18 | 삼성전자주식회사 | Apparatus and method of concurrent data service through multiple heterogeneous wireless networks |
| KR20090080742A (en) * | 2008-01-22 | 2009-07-27 | 삼성전자주식회사 | Communication terminal apparatus and Method for communication using a plurality of network interfaces installed on the communication terminal apparatus |
| KR20090081639A (en) * | 2008-01-24 | 2009-07-29 | 삼성전자주식회사 | Apparatus for distributing data traffic in heterogeneous wireless networks |
| KR101092478B1 (en) | 2009-09-16 | 2011-12-13 | (주)넷비젼텔레콤 | Method and System for transferring packets on heterogeneous links |
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