KR100654453B1 - Method for transceiving data in coordinator-based wireless network and wireless network apparatus using the same - Google Patents

Abstract

The present invention relates to a method for transmitting and receiving data in a coordinator-based wireless network and a wireless network device using the same.

A method for transmitting data in a coordinator-based wireless network according to the present invention comprises the steps of providing data to be transmitted in the coordinator-based wireless network, including the provided data and type information indicative of the type of data and complying with the protocol of the coordinator-based wireless network Providing a frame, and transmitting the provided MAC frame over a wireless medium.

According to the present invention, by setting the type information in the MAC frame in the facilitator-based wireless network, it is possible to enable the organic operation between the MAC layer and its upper layer.

Coordinator-based wireless network, type information, MAC frame

Description

Method for transceiving data in coordinator-based wireless network and wireless network apparatus using the same}

1 is a diagram illustrating a wireless network in infrastructure mode.

2 is a diagram illustrating a wireless network in an ad hoc mode.

3 is a diagram illustrating a stack structure according to the IEEE 802.15.3 standard.

4 illustrates a stack structure according to an embodiment of the present invention.

5 is a diagram illustrating a MAC frame structure according to an embodiment of the present invention.

6 is a diagram illustrating a MAC frame structure according to another embodiment of the present invention.

7 is a block diagram illustrating a wireless network device according to an embodiment of the present invention.

8 is a flowchart illustrating a method for transmitting data in a coordinator-based wireless network according to an embodiment of the present invention.

9 is a flowchart illustrating a method of receiving data in a coordinator-based wireless network according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

710: upper layer module 720: frame processing module

730: transmission and reception module

The present invention relates to a method for transmitting and receiving data, and more particularly, to a method for transmitting and receiving data in a coordinator-based wireless network and a wireless network apparatus using the same.

With the development of communication and network technology, the recent network environment is changing from a wired network environment using a wired medium such as a coaxial cable or an optical cable to a wireless network environment using wireless signals of various frequency bands. Accordingly, computing devices (hereinafter, referred to as "wireless network devices") that include a wireless network interface module, which are mobile, and which perform various functions by processing various information have been developed. In addition, technologies related to wireless networks have emerged to allow these wireless network devices to communicate efficiently.

Such wireless networks can be divided into two types.

First, as shown in FIG. 1, there is a wireless network type including an access point 110, which is also referred to as an 'infrastructure mode wireless network'.

As another form of the wireless network, there is a form of a wireless network that does not include an access point, as shown in FIG. 2, which is also referred to as an 'ad-hoc mode wireless network'.

An infrastructure mode wireless network requires an access point 110 for relaying communication between wireless network devices constituting the wireless network or communication between the wireless network and the wired network. That is, since the access point 110 plays a role of relaying data, all data transmitted in the infrastructure mode wireless network passes through the access point 110.

Meanwhile, an ad hoc mode wireless network is a type of wireless network in which wireless network devices can directly transmit data to each other without passing through a relay device such as an access point.

This ad hoc wireless network can be divided into two types.

One of them is to assign a time (hereinafter, referred to as 'channel time') that a randomly selected wireless network device among wireless network devices belonging to the same wireless network can transmit data to other wireless network devices. The master acts as a coordinator, and other wireless network devices are in the form of a network that can transmit data by occupying a communication channel at a channel time allocated to them.

Another type of network in ad hoc mode is a network type in which no wireless network device serving as a coordinator exists and all wireless network devices can transmit data whenever they want.

In the former case, that is, in a network form in which a wireless network device serving as a coordinator exists (hereinafter referred to as a 'coordinator-based wireless network'), one or more wireless network devices form a single independent wireless network around the coordinator. Done.

On the other hand, when there are multiple coordinator-based wireless networks in a certain space, each coordinator-based wireless network has unique identification information to distinguish it from other coordinator-based wireless networks.

Accordingly, wireless network devices belonging to a specific coordinator-based wireless network may transmit and receive data with other wireless network devices during a channel time allocated by the coordinator in the coordinator-based wireless network to which they belong.

Conventional technology for coordinator-based wireless networks is called Media Access Control (MAC), which corresponds to the data-link layer of the Open System Interconnection (OSI) Layer 7 (Layer). The main research is underway. In this prior art, there is no consideration for the upper layer of the MAC layer. Therefore, when the MAC layer of the coordinator-based wireless network protocol according to the prior art and the upper layer are connected in order to construct a more diverse and efficient network, there is a difficulty in organic operation between the MAC layer and the upper layer.

An object of the present invention is to perform an organic operation between a MAC layer and an upper layer by setting type information in a MAC frame in a facilitator-based wireless network.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a method for transmitting data in a coordinator-based wireless network according to an embodiment of the present invention comprises the steps of providing data to be transmitted in the coordinator-based wireless network, the information provided and the type information indicating the type of the data And providing a MAC frame conforming to a protocol of the coordinator-based wireless network, and transmitting the provided MAC frame over a wireless medium.

In order to achieve the above object, a method of receiving data in a coordinator-based wireless network according to an embodiment of the present invention comprises the steps of receiving a MAC frame conforming to the protocol of the coordinator-based wireless network over a wireless medium in the coordinator-based wireless network, Identifying type information indicating the type of data included in the MAC frame from the received MAC frame, and providing the data to a higher layer protocol according to the identified type information.

In order to achieve the above object, a wireless network device according to an embodiment of the present invention is a higher layer module for providing data to be transmitted to another wireless network device in a coordinator-based wireless network, a type indicating the data provided from the higher layer module and the type of the data. A frame processing module including information and providing a MAC frame conforming to a protocol of the coordinator-based wireless network, and a transmitting / receiving module transmitting a MAC frame provided from the frame processing module via a wireless medium.

In order to achieve the above object, a wireless network device according to another embodiment of the present invention by the transceiver module and the transceiver module for receiving a MAC frame conforming to the protocol of the coordinator-based wireless network via a wireless medium in the coordinator-based wireless network And a frame processing module for identifying type information indicating the type of data included in the MAC frame from the received MAC frame and providing the data to an upper layer protocol of the MAC layer according to the identified type information.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, the coordinator-based wireless network serves as a coordinator for allocating channel time to other wireless network devices by a randomly selected wireless network device among wireless network devices belonging to the same wireless network as described through the prior art. In other words, other wireless network devices refer to a form of wireless network in ad hoc mode that can transmit data by occupying a communication channel at a channel time allocated to the other wireless network devices.

As an example of a protocol for coordinator-based wireless networks, the Institute of Electrical and Electronics Engineers (IEEE) 802.15.3 is an Open System Interconnection (OSI) system for network models published by the International Organization for Standadization (ISO). Interconnect) A standard for a metric access control (MAC) layer corresponding to a data-link layer of the seven layers is disclosed.

Accordingly, in order to help the understanding of the present invention, the present invention will be described through IEEE 802.15.3 as an embodiment of a coordinator-based wireless network.

First, the stack structure according to the IEEE 802.15.3 standard will be briefly described with reference to FIG. 3. First, the MAC layer 220 and the PHY physical layer 230 each have a management entity. These are referred to as a MAC layer management entity (MLME) 240 and a PHY layer management entity (PLME) 250, respectively. These management bodies provide a service interface for performing a layer management function in each layer.

In addition, there is a device management entity (DME 260) that provides a service for performing the correct operation in the MAC. The DME 260 operates independently for each layer, collecting layer-dependent status information of each layer from the management of each layer, and layer-specific parameters for each layer. Has the function to set.

Service access points (SAPs) existing between layers serve as a gate for transferring information between layers or between management bodies. That is, information between the PHY layer 230 and the MAC layer 220 is delivered by the PHY SAP 203, and information between the MAC layer 220 and the FCSL 210 is delivered by the MAC SAP 202. The information between the DME 260 and the MLME 240 is transferred by the MLME SAP 204, and the information between the DME 260 and the PLME 250 is transferred by the PLME SAP 205. In addition, information between the MLME 240 and the PLME 250 is carried by the MLME-PLME SAP 206. Information between FCSL 210 and its upper layer (not shown) is carried by FCSL SAP 201.

Meanwhile, in order to construct a more diverse and efficient network, the stack structure of the IEEE 802.15.3 standard needs to be organically connected to another layer (for example, the network layer of the OSI 7 layer) that may exist above it. .

In order to help the understanding of the present invention, hereinafter, the Internet layer of the Transmission Control Protocol / Internet Protocol (TCP / IP) as an upper layer of the stack structure shown in FIG. 3 will be described as an example.

4 is a diagram showing a stack structure of a wireless network device according to an embodiment of the present invention.

The illustrated stack structure further includes internet layers 310 and 410 on the stack structure of the conventional IEEE 802.15.3 standard. In the present embodiment, the Internet layer 310 of the first wireless network device 300 and the Internet layer 410 of the second wireless network device 400 each have three protocols (Internet Protocol (IP) 312 and 412, Address Resolution Protocol (ARP) 314, 414 and Reverse Address Resolution Protocol (RARP) 316, 416). In the illustrated stack structure, FCSL is omitted between the MAC layers 320 and 420 and the Internet layers 310 and 410, but FCSL may be further included according to an embodiment.

First, in the first wireless network device 300 to transmit data, when the Internet layer 310 transmits data to the MAC layer 320 (1), the MAC layer 320 receives a MAC frame including the received data. It generates and provides it to the PHY layer 330 (②). At this time, the MAC layer 320 confirms which data is transmitted from which protocol of the Internet layer 310, and identifies information (hereinafter referred to as type information) that can identify the type of the received data according to the verification result in the MAC frame. Will be set.

The PYH layer 330 receiving the MAC frame from the MAC layer 320 generates a radio signal including the MAC frame, and the channel time allocated to the first wireless network device 300 by the coordinator (not shown). The second wireless network device 400 transmits to the second wireless network device 400 (③).

In the second wireless network device 400, the PHY layer 430 receives a wireless signal transmitted from the first wireless network device 300 (④), extracts a MAC frame from the received wireless signal, and then uses the MAC layer 420. (⑤). At this time, the MAC layer 420 may determine the type information set in the MAC frame received from the PHY layer 430, and to determine which protocol of the Internet layer 410 to transfer data included in the MAC frame.

When it is determined that the data is to be delivered, the MAC layer 420 transfers the data included in the MAC frame to a specific protocol 412, 414, or 416 of the Internet layer 410 (6).

As described above, according to the present invention, by inserting type information into a MAC frame, it is possible to enable an organic operation between the MAC layer and its upper layer. The type information inserted into the MAC frame may be included in a MAC header or a MAC body, and the structure of the MAC frame according to an embodiment of the present invention will be described with reference to FIGS. 5 and 6.

5 is a diagram illustrating a MAC frame structure according to an embodiment of the present invention.

The illustrated MAC frame 500 represents a MAC frame conforming to the IEEE 802.15.3 standard.

The MAC frame 500 includes a MAC header 510 and a MAC body 520.

The MAC body 520 includes a frame payload 522 and a MAC frame 500 including data (protocol data unit (PDU)) received from an upper layer of the MAC layer. A frame check sum (FCS) field 524 used to determine a transmission error of the PCS field.

For example, when an application layer is located above the MAC layer, application data is carried in the frame payload 522.

Therefore, as an embodiment of the present invention, when the Internet layer is an upper layer of the MAC layer, the frame payload 522 includes an IP datagram, an ARP request / response or a RARP request / response. In this case, type information may be inserted into the MAC header 510 to distinguish the type of data carried in the frame payload 522.

The MAC header 510 has a 'PNID (Piconet Identifier)' information field 512 representing an identifier for identifying a piconet, and a 'SrcID' information field for identifying a device transmitting the MAC frame 500. 516, a 'DestID' information field 514, etc. for identifying a device that is the target of receiving the MAC frame 500. The MAC header 510 also includes a frame control field 530 that indicates the characteristics of the MAC frame 500.

The frame control field 530 is a subfield which includes a protocol version field 532 indicating information on the MAC protocol version, a type of the MAC frame 500 (eg, whether the MAC frame 500 is a beacon frame or an ACK frame). Frame type field 534 indicating information about the recognition, etc.).

In the present invention, a packet type field 540 is defined using a reserved field in addition to the conventional field. In the packet type field 540, type information of data carried in the frame payload 522 area may be set.

For example, if the upper layer of the MAC layer is the Internet layer and 2 bits are allocated for the packet type field 540 as shown, the frame payload 522 if the packet type field 540 has a value of '00'. ) Means that general data in the conventional IEEE 802.15.3 standard is loaded, and when the packet type field 540 has a value of '01', it means that the frame payload 522 has an IP datagram. can do. In addition, if the packet type field 540 has a value of # 10, it means that the frame payload 522 carries an ARP request / response, and if the packet type field 540 has a value of # 11, the frame The payload 522 may mean that a RARP request / response is carried.

Accordingly, the MAC layer of the wireless network device to which data is to be transmitted may check whether a protocol is provided from among higher layers, and may insert type information for the protocol of the higher layer which provided the data into the MAC header. Also, the MAC layer of the wireless network apparatus that receives the MAC frame may identify a target of a protocol to process data carried in the frame payload 522 through the packet type field 540 of the MAC header 510.

Although the MAC frame shown in FIG. 5 allocates 2 bits for the packet type field, this is exemplary, and more than 2 or less than 2 bits may be allocated for the packet type field.

Meanwhile, the packet type field 540 is added to the MAC header conforming to the existing IEEE 802.15.3 standard to identify the type of data carried in the frame payload 522. Parameters for type information may be added.

According to an embodiment of the present invention, the message structure 'MAC-ASYNC-DATA.request' defined in the conventional IEEE 802.15.3 standard is changed as follows.

MAC-ASYNC-DATA.request (

                                  PacketType

                                  TrgtID

                                  OrigID

                                  Priority

                                  ACKPolicy

                                  TransmissionTimeout

                                  Length

                                  Data

                                  )

The 'MAC-ASYNC-DATA.request' message is received by the MAC layer conforming to the IEEE 802.15.3 standard from the Frame Convergens Sublayer (FCSL) to determine the format of the MAC Protocol Data Unit (MPDU). It can be used to At this time, 'PacketType' among parameters constituting the 'MAC-ASYNC-DATA.request' message is a newly defined parameter according to an embodiment of the present invention and indicates type information of data provided from an upper layer. Through this, the MAC layer may generate a MAC frame including information on the type of data carried in the frame payload.

Meanwhile, the 'MAC-ASYNC-DATA.indication' message, which is a response message to the 'MAC-ASYNC-DATA.request', may also be modified. The 'MAC-ASYNC-DATA.indication' message modified according to an embodiment of the present invention may be modified. As follows.

MAC-ASYNC-DATA.indication (

                                     PacketType

                                     TrgtID

                                     OrigID

                                     Length

                                     Data

                                     )

Among the parameters constituting the 'MAC-ASYNC-DATA.indication' message, 'PacketType' is a newly defined parameter according to an embodiment of the present invention as described in the 'MAC-ASYNC-DATA.request' message. Indicates information about the type of data to be carried in the payload of the. The 'MAC-ASYNC-DATA.indication' message may be generated by the MAC layer when the MAC Service Data Unit (MSDU) has been successfully received at the MAC layer.

Meanwhile, the aforementioned 'MAC-ASYNC-DATA.request' message and 'MAC-ASYNC-DATA.indication' message are messages for asynchronous data defined in the IEEE 802.15.3 standard. When the MAC layer generates a MAC frame for isochronous data, the message 'MAC-ISOCH-DATA.request' and 'MAC-ISOCH-', which are messages used for isochronous data in the conventional IEEE 802.15.3 standard, are used. DATA.indication 'messages can be modified as follows.

'MAC-ISOCH-DATA.request' (

                                  PacketType

                                  Streamindex

                                  TransmissionTimeout

                                  Length

                                  Data

                                  )

'MAC-ISOCH-DATA.indication' (

                                 PacketType

                                 TrgtID

                                 OrigID

                                 Streamindex

                                 Length

                                 Data

                                 )

Each message includes a newly defined parameter 'PacketType' according to an embodiment of the present invention, and the role thereof is the same as described in the above-described message for asynchronous data.

Meanwhile, according to another embodiment of the present invention, type information of data provided from an upper layer may be set in a body region of a MAC frame, and an example thereof will be described with reference to FIG. 6.

6 is a diagram illustrating a MAC frame structure according to another embodiment of the present invention.

The illustrated MAC frame 600 represents a MAC frame conforming to the IEEE 802.15.3 standard.

MAC frame 600 includes MAC header 610 and MAC body 620.

The MAC header 610 may be configured with the same fields as the conventional IEEE 802.15.3 standard.

The MAC body 620 is a frame including data (protocol data unit (PDU)) 631 received from the upper layer of the MAC layer of the protocol suite conforming to the IEEE 802.15.3 standard and the FCSL header 632. A frame payload (630) and a frame check sum (FCS) field 640 used to determine a frame transmission error.

For example, when an application layer is located above the MAC layer, the data 631 included in the frame payload 630 may be application data.

Therefore, according to an embodiment of the present invention, when the Internet layer is an upper layer of the MAC layer, the data 631 carried in the frame payload 630 may be an IP datagram, an ARP request / response, or a RARP request / response. . In this case, type information for identifying the type of data 631 included in the frame payload 630 may be inserted into the FCSL header 632.

That is, in the present embodiment, when the FCSL receives data from the upper layer, the FCSL may provide the MAC layer by adding the FCSL header 632 including the type information of the data to the provided data.

The FCSL header 632 according to an embodiment of the present invention may include a version field 633 indicating its version information and a packet type field 634 indicating the type information of data 631 carried in the frame payload. have. In the illustrated embodiment, one octet is allocated for the packet type field 634, but this is exemplary and does not limit the present invention.

For example, if the upper layer of the FCSL layer is the Internet layer and 2 bits are allocated for the packet type field 634, if the packet type field 634 has a value of '00', the data contained in the frame payload 630 ( 631 denotes general data in the conventional IEEE 802.15.3. When the packet type field 634 has a value of # 01, data 631 included in the frame payload 630 is an IP datagram. can do. In addition, when the packet type field 634 has a value of # 10, the data 631 included in the frame payload 630 means an ARP request / response, and the packet type field 634 indicates a value of # 11. If there is, the data 631 included in the frame payload 630 may mean that it is a RARP request / response.

Accordingly, the FCSL of the wireless network device to which the data is to be transmitted may determine whether data is provided from which protocol among the higher layers, and may add an FCSL header including type information corresponding thereto to the data provided from the higher layer. The data added with the FCSL header is provided to the MAC layer, and the MAC layer may be provided to the PHY layer by adding a MAC header to data (including the FCSL header) provided from the FCSL layer.

In addition, the MAC layer and the FCSL of the wireless network device receiving the MAC frame remove the MAC header from the received MAC frame, and transmit the MAC header to the frame payload 630 through the packet type field 634 included in the FCSL header. The target of the protocol to process the contained data 631 can be distinguished.

7 is a block diagram illustrating a wireless network device according to an embodiment of the present invention.

The wireless network device includes a higher layer module 710, a frame processing module 720, and a transmit / receive module 730.

The higher layer module 710 provides the frame processing module 720 with data to transmit to another wireless network device. In addition, the upper layer module 710 receives data contained in the MAC frame transmitted from another wireless network device from the frame processing module 720. The upper layer module 710 manages a network layer above the LLC link layer (Logical Link Control Layer). Preferably, the layer governed by higher layer module 710 comprises the Internet layer of TCP / IP.

The frame processing module 720 governs the operation at the FCSL and MAC layers. That is, when the frame processing module 720 receives data from the upper layer module 710, the frame processing module 720 checks the protocol of the upper layer module 710 which provided the corresponding data. According to the verification result, the frame processing module 720 may generate a MAC frame including type information of data provided from the higher layer module 710. The type information may be included in a MAC header or MAC body of the MAC frame, and the embodiment of the MAC frame generated by the frame processing module 720 is as described with reference to FIGS. 5 and 6.

In addition, the frame processing module 720 reads the MAC header of the MAC frame received from the transmission / reception module 730, removes the MAC header from the MAC frame, and transfers the result to the higher layer module 710. In this case, the frame processing module 720 may identify a protocol to process data carried in the frame payload through the type information included in the MAC header or MAC body (preferably FCSL header) of the MAC frame. Therefore, the frame processing module 720 transfers data to a protocol of a higher layer identified through type information among higher layers managed by the higher layer module 710.

At this time, the MAC frame generated by the frame processing module 720 or delivered to the frame processing module 730 is a MAC frame that conforms to the protocol of the coordinator-based wireless network.

The transmit / receive module 730 manages the operation in the PHY physical layer. That is, the transmission / reception module 730 generates a packet protocol data unit (PPDU) including a PHY header added to a MAC frame received from the frame processing module 720 and transmits a radio signal including the same through a wireless medium.

In addition, the transmission and reception module 730 extracts the MAC frame from the wireless signal received through the wireless medium, and delivers it to the frame processing module 720.

The transmission / reception module 730 may be further divided into a base band processor (not shown) and a radio frequency (RF) module (not shown).

In the description so far, a "module" means a software component or a hardware component such as a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC). Perform a specific function. However, modules are not meant to be limited to software or hardware. The module may be configured to be in an addressable storage medium and may be configured to execute one or more processors. The functions provided in the modules may be implemented by more granular modules, or may be implemented by combining a plurality of modules to perform a specific function. In addition, the components and modules may be implemented to execute one or more computers in a system.

Hereinafter, an operation process of a network device according to an embodiment of the present invention will be described with reference to FIGS. 8 and 9.

8 is a flowchart illustrating a method for transmitting data in a coordinator-based wireless network according to an embodiment of the present invention.

The higher layer module 710 of the wireless network device to transmit data to another wireless network device provides the frame processing module 720 with data to be transmitted (S110).

The frame processing module 720 checks whether the data provided from the upper layer module 710 is data transmitted from any protocol among upper layers of the MAC layer (S120).

Thereafter, the frame processing module 720 provides a MAC frame including the received data and type information of the corresponding data (S130). At this time, the type information is set in accordance with the protocol of the upper layer that delivered the data, which is confirmed in step S120. In addition, the MAC frame provided in step S130 is a MAC frame that conforms to the coordinator-based wireless network protocol. An embodiment of the MAC frame provided in step S130 is as described with reference to FIGS. 5 and 6.

The transmission / reception module 730 transmits the MAC frame provided by the frame processing module 720 to another wireless network device (S140). More specifically, the transmit / receive module 730 generates a wireless signal including the MAC frame provided by the frame processing module 720 and transmits the generated wireless signal through the wireless medium.

9 is a flowchart illustrating a method of receiving data in a coordinator-based wireless network according to an embodiment of the present invention.

When the MAC frame is received in the coordinator-based wireless network (S210), the transmission / reception module 730 transmits the received MAC frame to the frame processing module 720 (S220). In this case, the MAC frame is a MAC frame conforming to the coordinator-based wireless network protocol, and this MAC frame is as described with reference to FIGS. 5 and 6.

The frame processing module 720 receiving the MAC frame from the transmission / reception module 730 checks the type of data included in the MAC frame through the type information inserted in the MAC frame (S230). That is, the frame processing module 720 identifies the type information included in the MAC header or MAC body (preferably FCSL header) of the MAC frame to distinguish a higher layer protocol to process data included in the MAC body.

Thereafter, the frame processing module 720 transmits data included in the MAC frame to the higher layer module 710 (S240). More specifically, the data is transmitted to the protocol of the higher layer identified in step S230 among the higher layers managed by the higher layer module 710.

In the above, each block of the flowchart shown in FIGS. 8 and 9 and combinations of the flowchart illustrations may be performed by computer program instructions. These computer program instructions may be embedded in the processor of a general purpose computer, special purpose computer or other programmable data processing equipment. Thus, an instrument may be created that allows these computer program instructions to generate means for performing the functions described in the flowchart block (s).

The computer program instructions described above may also be stored in computer usable or computer readable memory, which may be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner. It is therefore also possible to produce an article of manufacture containing instruction means for performing the functions described in the flowchart block (s).

In addition, computer program instructions It is also possible to mount on a computer or other programmable data processing equipment. Accordingly, computer program instructions may provide steps for performing the functions described in the flowchart block (s) by performing a series of operating steps on a computer or other programmable data processing equipment to create a computer-implemented process. Do.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

According to the method for transmitting / receiving data in the coordinator-based wireless network and the wireless network apparatus using the same, the type information is set in the MAC frame in the facilitator-based wireless network, thereby establishing an organic connection between the MAC layer and the upper layer. Can be enabled.

Claims (24)

Providing data to be transmitted to another wireless network device in the coordinator-based wireless network; Providing a MAC frame including the provided data and type information indicative of the type of the data and complying with a protocol of the coordinator-based wireless network; And Transmitting the provided MAC frame over a wireless medium. According to claim 1, wherein the type information, Transmitting data in a coordinator-based wireless network included in a MAC header of the MAC frame. 3. The method of claim 2, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame and the type information is set in a field reserved for use in the MAC header. According to claim 1, wherein the type information, Transmitting data in a coordinator-based wireless network included in the MAC body of the MAC frame. 5. The method of claim 4, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame and the type information is set in an FCSL header. 2. The method of claim 1, wherein said data is data provided from an Internet layer. Receiving a MAC frame conforming to the protocol of the coordinator-based wireless network over a wireless medium in a coordinator-based wireless network; Identifying type information indicating a type of data included in the MAC frame from the received MAC frame; And And providing the data to a higher layer protocol in accordance with the identified type information. The method of claim 7, wherein the type information, And receiving data in a coordinator based wireless network included in a MAC header of the MAC frame. 9. The method of claim 8, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame and the type information is information set in a field reserved for use in the MAC header. The method of claim 7, wherein the type information, And receiving data in a coordinator based wireless network included in the MAC body of the MAC frame. The method of claim 10, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame and the type information is information set in an FCSL header. 8. The method of claim 7, wherein the upper layer is the Internet layer. An upper layer module for providing data for transmission to other wireless network devices in the coordinator based wireless network; A frame processing module including data provided from the upper layer module and type information indicating the type of the data and providing a MAC frame conforming to a protocol of the coordinator-based wireless network; And And a transmission / reception module for transmitting a MAC frame provided from the frame processing module through a wireless medium. The method of claim 13, wherein the type information, The wireless network device included in the MAC header of the MAC frame. The wireless network apparatus according to claim 14, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame, and the type information is set in a field reserved for use in the MAC header. The method of claim 13, wherein the type information, Wireless network device included in the MAC body of the MAC frame. 17. The wireless network device of claim 16, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame and the type information is set in an FCSL header. 14. The wireless network device of claim 13, wherein the data is data provided from an internet layer. A transceiver module for receiving a MAC frame conforming to a protocol of the coordinator-based wireless network through a wireless medium in a coordinator-based wireless network; And A frame processing module for checking type information indicating the type of data included in the MAC frame from the MAC frame received by the transmitting and receiving module, and providing the data to an upper layer protocol of the MAC layer according to the identified type information; Wireless network device comprising. The method of claim 19, wherein the type information, The wireless network device included in the MAC header of the MAC frame. 21. The wireless network device of claim 20, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame, and the type information is information set in a field reserved for use in the MAC header. The method of claim 19, wherein the type information, Wireless network device included in the MAC body of the MAC frame. 23. The wireless network device of claim 22, wherein the MAC frame is an IEEE 802.15.3 standard MAC frame and the type information is information set in an FCSL header. 20. The wireless network device of claim 19, wherein the upper layer is an internet layer.

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