Abstract:
The present disclosure relates to a sensor network, machine type communication (MTC), machine-to-machine (M 2 M) communication, and technology for internet of things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An operating method of a first electronic device in a communication system is provided. The operating method includes detecting that a setup of a wireless connection with a second electronic device for a short range communication has been started; receiving, from the second electronic device, state information for determining a role of the first electronic device for the wireless connection; determining the role of the first electronic device based on the state information; completing the setup of the wireless connection based on the determined role; and communicating with the second electronic device through the wireless connection based on the determined role.

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) AND CLAIM OF PRIORITY 
       [0001]    The present application is related to and claims the benefit of Korean Patent Application No. 10-2016-0003037, filed on Jan. 11, 2016, the entire disclosure of which is incorporated herein by reference. 
       TECHNICAL FIELD 
       [0002]    The present disclosure relates to a method and apparatus for performing a short range wireless communication in a communication system, and more particularly, to a method and apparatus for substituting a wired connection with a wireless connection using a wireless communication technology in a communication system. 
       BACKGROUND 
       [0003]    The Internet, which is a human centered connectivity network where humans generate and consume information, is now evolving to the internet of things (IoT) where distributed entities, such as things, exchange and process information without human intervention. The internet of everything (IoE), which is a combination of the IoT technology and the big data processing technology through connection with a cloud server, has emerged. 
         [0004]    As technology elements, such as “sensing technology”, “wired/wireless communication and network infrastructure,” “service interface technology,” and “security technology” have been demanded for IoT implementation, a sensor network, a machine-to-machine (M2M) communication, machine type communication (MTC), and so forth have been recently researched. 
         [0005]    Such an IoT environment may provide intelligent Internet technology services that create a new value to human life by collecting and analyzing data generated among connected things. IoT may be applied to a variety of fields including smart home, smart building, smart city, smart car or connected cars, smart grid, health care, smart appliances and advanced medical services through convergence and combination between existing information technology (IT) and various industrial applications. 
         [0006]    A universal serial bus (USB) is a general interface used for a connection between devices in which high-speed data transmission is possible, and an existing use of the USB has been limited to a wired connection. 
         [0007]    A wireless communication technology has been progressed, and a data rate of a wired connection has been substituted with a wireless connection, so a wired connection may be substituted with a wireless connection. 
         [0008]    A general connection such as a USB performs a host role managing information and a flow of data for the connection and a role of a peripheral device operated under a control of a host. 
         [0009]    In a wired USB connection, a host role and a peripheral device role are mainly classified using a type of a USB cable. That is, in the wired USB connection, a role of a USB device is determined according to a type of a cable, i.e., whether an identifier (ID) pin is grounded. 
         [0010]    An existing application in which a wired USB connection is substituted with a wireless connection fixes a role of an electronic device in advance by fixing a value of an ID pin instead of determining a role of a USB based on a type of a cable. In a state in which the role of the electronic device is fixed, a wireless USB connection of the electronic device is established. 
         [0011]    In a case that the electronic device needs to perform a host role and a USB device role at the same time or perform the host role and the USB device role alternately according to a usage scenario of the electronic device, the technology of fixing the value of the ID pin may not support the usage scenario. Further, there is no technology of changing a role of a USB during a communication in a case that a wired USB connection is substituted with a wireless connection. 
         [0012]    So, in an existing technology, there is a need for manual setting for a USB connection for a docking scenario or data transmission, and it is impossible to automatically connect a service according to a usage scenario and an application of an electronic device. Further, in the existing technology, there are no mechanisms of selecting a USB host role and a USB device role, and no technology of changing a role of a USB. Therefore various scenarios for a USB connection may not be supported. 
         [0013]    The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the present disclosure. 
       SUMMARY 
       [0014]    To address the above-discussed deficiencies, it is a primary object to provide a method and an apparatus for performing a short range wireless communication in a communication system. 
         [0015]    Another aspect of the present disclosure is to provide a method and an apparatus for substituting a wired USB connection with a wireless connection using a wireless communication technology in a communication system. 
         [0016]    Another aspect of the present disclosure is to provide a method and an apparatus for communicating information for determining a role of a USB in a procedure of establishing a wireless connection in a communication system. 
         [0017]    Another aspect of the present disclosure is to provide a method and an apparatus for automatically determining a role of an electronic device upon establishing a wireless connection for a short range communication and establishing a service connection in a communication system. 
         [0018]    In accordance with an aspect of the present disclosure, an operating method of a first electronic device in a communication system is provided. The operating method includes detecting that a setup of a wireless connection with a second electronic device for a short range communication has been started; receiving, from the second electronic device, state information for determining a role of the first electronic device for the wireless connection; determining the role of the first electronic device based on the state information; completing the setup of the wireless connection based on the determined role; and communicating with the second electronic device through the wireless connection based on the determined role. 
         [0019]    In accordance with another aspect of the present disclosure, an operating method of a first electronic device in a communication system is provided. The operating method includes detecting that a setup of a wireless connection with a second electronic device for a short range communication has been started; receiving, from the second electronic device, a message requesting information for determining a role of the second electronic device for the wireless connection; determining the role of the second electronic device corresponding to at least one electronic device if there is the at least one electronic device which is connected to the first electronic device with a wire; transmitting, to the second electronic device, state information indicating the determined role; completing the setup of the wireless connection based on the determined role; and communicating with the second electronic device through the wireless connection based on the determined role. 
         [0020]    In accordance with still another aspect of the present disclosure, a first electronic device in a communication system is provided. The first electronic device includes a short range communication interface configured to detect that a setup of a wireless connection with a second electronic device for a short range communication has been started, and to receive, from the second electronic device, state information for determining a role of the first electronic device for the wireless connection; and a processor configured to determine the role of the first electronic device based on the state information, to instruct the short range communication interface to complete the setup of the wireless connection based on the determined role, and to communicate with the second electronic device through the short range communication interface based on the determined role. 
         [0021]    In accordance with still another aspect of the present disclosure, a first electronic device in a communication system is provided. The first electronic device includes a short range communication interface configured to detect that a setup of a wireless connection with a second electronic device for a short range communication has been started, and to receive, from the second electronic device, a message requesting information for determining a role of the second electronic device for the wireless connection; and a processor configured to determine the role of the second electronic device corresponding to at least one electronic device if there is the at least one electronic device which is connected to the first electronic device with a wire, to transmit, to the second electronic device, state information indicating the determined role through the short range communication interface, to instruct the short range communication interface to complete the setup of the wireless connection based on the determined role, and to communicate with the second electronic device through the short range communication interface based on the determined role. 
         [0022]    Other aspects, advantages, and salient features of the disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the disclosure. 
         [0023]    Before undertaking the DETAILED DESCRIPTION below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document: the terms “include” and “comprise,” as well as derivatives thereof, mean inclusion without limitation; the term “or,” is inclusive, meaning and/or; the phrases “associated with” and “associated therewith, “as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like; and the term “controller” means any device, system or part thereof that controls at least one operation, such a device may be implemented in hardware, firmware or software, or some combination of at least two of the same. It should be noted that the functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. Definitions for certain words and phrases are provided throughout this patent document, those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior, as well as future uses of such defined words and phrases. 
         [0024]    Before undertaking the DETAILED DESCRIPTION below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document: the terms “include” and “comprise,” as well as derivatives thereof, mean inclusion without limitation; the term “or,” is inclusive, meaning and/or; the phrases “associated with” and “associated therewith,” as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like; and the term “controller” means any device, system or part thereof that controls at least one operation, such a device may be implemented in hardware, firmware or software, or some combination of at least two of the same. It should be noted that the functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. Definitions for certain words and phrases are provided throughout this patent document, those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior, as well as future uses of such defined words and phrases. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0025]    For a more complete understanding of the present disclosure and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, in which like reference numerals represent like parts: 
           [0026]      FIG. 1  illustrates an example of a USB communication applicable to embodiments of the present disclosure; 
           [0027]      FIG. 2  illustrates an example of a process of determining a role of a USB communication applicable to embodiments of the present disclosure; 
           [0028]      FIG. 3  illustrates an example of a usage scenario of a USB device applicable to embodiments of the present disclosure; 
           [0029]      FIG. 4  illustrates another example of a usage scenario of a USB device applicable to embodiments of the present disclosure; 
           [0030]      FIG. 5  illustrates yet another example of a usage scenario of a USB device applicable to embodiments of the present disclosure; 
           [0031]      FIG. 6A  illustrates an example of a WSS applicable to embodiments of the present disclosure; 
           [0032]      FIG. 6B  illustrates an example of an equivalent USB topology for a WSS applicable to embodiments of the present disclosure; 
           [0033]      FIG. 7  illustrates a connection diagram according to a usage scenario in  FIGS. 6A and 6B ; 
           [0034]      FIG. 8  illustrates an example of a topology of a wireless connection dynamically configurable in a communication system according to an embodiment of the present disclosure; 
           [0035]      FIG. 9  illustrates an example of a scenario using a wireless connection in a communication system according to an embodiment of the present disclosure; 
           [0036]      FIG. 10  illustrates an example of a configuration of a wireless docking pad supporting a multi-wireless connection in a communication system according to an embodiment of the present disclosure; 
           [0037]      FIG. 11  illustrates an example of a procedure of establishing a wireless connection including exchange of state information in a communication system according to an embodiment of the present disclosure; 
           [0038]      FIG. 12  illustrates an example of a state information message transmitted by an STA in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure; 
           [0039]      FIG. 13  illustrates another example of a state information message transmitted by an STA or a wireless docking pad in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure; 
           [0040]      FIG. 14  illustrates an example of a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure; 
           [0041]      FIG. 15  illustrates an example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure; 
           [0042]      FIG. 16  illustrates another example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure; 
           [0043]      FIG. 17  illustrates a timing diagram of an example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure; 
           [0044]      FIG. 18  illustrates a timing diagram of another example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure; and 
           [0045]      FIG. 19  illustrates an inner structure of devices of establishing a wireless connection in a communication system according to an embodiment of the present disclosure. 
       
    
    
       [0046]    Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures. 
       DETAILED DESCRIPTION 
       [0047]      FIGS. 1 through 19 , discussed below, and the various embodiments used to describe the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged electronic device. 
         [0048]    The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness. 
         [0049]    The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents. 
         [0050]    It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a component surface” includes reference to one or more of such surfaces. 
         [0051]    Although ordinal numbers such as “first,” “second,” and so forth will be used to describe various components, those components are not limited herein. The terms are used only for distinguishing one component from another component. For example, a first component may be referred to as a second component and likewise, a second component may also be referred to as a first component, without departing from the teaching of the inventive concept. The term “and/or” used herein includes any and all combinations of one or more of the associated listed items. 
         [0052]    The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “has,” when used in this specification, specify the presence of a stated feature, number, step, operation, component, element, or combination thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or combinations thereof. 
         [0053]    The terms used herein, including technical and scientific terms, have the same meanings as terms that are generally understood by those skilled in the art, as long as the terms are not differently defined. It should be understood that terms defined in a generally-used dictionary have meanings coinciding with those of terms in the related technology. 
         [0054]    According to various embodiments of the present disclosure, an electronic device may include communication functionality. For example, an electronic device may be a smart phone, a tablet personal computer (PC), a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook PC, a personal digital assistant (PDA), a portable multimedia player (PMP), an mp3 player, a mobile medical device, a camera, a wearable device (e.g., a head-mounted device (HMD), electronic clothes, electronic braces, an electronic necklace, an electronic appcessory, an electronic tattoo, or a smart watch), and/or the like. 
         [0055]    According to various embodiments of the present disclosure, an electronic device may be a smart home appliance with communication functionality. A smart home appliance may be, for example, a television, a digital video disk (DVD) player, an audio, a refrigerator, an air conditioner, a vacuum cleaner, an oven, a microwave oven, a washer, a dryer, an air purifier, a set-top box, a TV box (e.g., Samsung HomeSync™, Apple TV™, or Google TV™), a gaming console, an electronic dictionary, an electronic key, a camcorder, an electronic picture frame, and/or the like. 
         [0056]    According to various embodiments of the present disclosure, an electronic device may be a medical device (e.g., magnetic resonance angiography (MRA) device, a magnetic resonance imaging (MRI) device, computed tomography (CT) device, an imaging device, or an ultrasonic device), a navigation device, a global positioning system (GPS) receiver, an event data recorder (EDR), a flight data recorder (FDR), an automotive infotainment device, a naval electronic device (e.g., naval navigation device, gyroscope, or compass), an avionic electronic device, a security device, an industrial or consumer robot, and/or the like. 
         [0057]    According to various embodiments of the present disclosure, an electronic device may be furniture, part of a building/structure, an electronic board, electronic signature receiving device, a projector, various measuring devices (e.g., water, electricity, gas or electro-magnetic wave measuring devices), and/or the like that include communication functionality. 
         [0058]    According to various embodiments of the present disclosure, an electronic device may be any combination of the foregoing devices. In addition, it will be apparent to one having ordinary skill in the art that an electronic device according to various embodiments of the present disclosure is not limited to the foregoing devices. 
         [0059]    According to various embodiments of the present disclosure, an electronic device may be a transmitting apparatus or a receiving apparatus. 
         [0060]    According to various embodiments of the present disclosure, an electronic device may be at least one of a mobile device such as a tablet computer and a smart phone, a station (STA), a user equipment (UE), a wearable device, and an internet over thing (IoT) device. 
         [0061]    According to various embodiments of the present disclosure, an electronic device may be a wireless docking pad providing a charging circuit. 
         [0062]    An embodiment of the present disclosure provides a method and an apparatus for performing a short range wireless communication in a communication system. 
         [0063]    An embodiment of the present disclosure provides a method and an apparatus for substituting a wired universal serial bus (USB) connection with a wireless connection using a wireless communication technology in a communication system. 
         [0064]    An embodiment of the present disclosure provides a method and an apparatus for communicating information for determining a role of a USB in a procedure of establishing a wireless connection in a communication system. 
         [0065]    An embodiment of the present disclosure provides a method and an apparatus for automatically determining a role of an electronic device upon establishing a wireless connection for a short range communication and establishing a service connection in a communication system. 
         [0066]    An apparatus and method proposed in various embodiments of the present disclosure may be applied to various communication systems such as a long term evolution (LTE) mobile communication system, an LTE-advanced (LTE-A) mobile communication system, a licensed-assisted access (LAA)-LTE mobile communication system, a high speed downlink packet access (HSDPA) mobile communication system, a high speed uplink packet access (HSUPA) mobile communication system, a high rate packet data (HRPD) mobile communication system proposed in a 3rdgeneration project partnership 2 (3GPP2), a wideband code division multiple access (WCDMA) mobile communication system proposed in the 3GPP2, a code division multiple access (CDMA) mobile communication system proposed in the 3GPP2, an institute of electrical and electronics engineers (IEEE) 802.16m communication system, an IEEE 802.16e communication system, an evolved packet system (EPS), and a mobile internet protocol (Mobile IP) system, a digital video broadcast system such as a mobile broadcast service such as a digital multimedia broadcasting (DMB) service, a digital video broadcasting-handheld (DVP-H), an advanced television systems committee-mobile/handheld (ATSC-M/H) service, and the like, and an internet protocol television (IPTV), a moving picture experts group (MPEG) media transport (MMT) system and/or the like. 
         [0067]    An example of a USB communication applicable to embodiments of the present disclosure will be described with reference to  FIG. 1 . 
         [0068]      FIG. 1  illustrates an example of a USB communication applicable to embodiments of the present disclosure. 
         [0069]    Referring to  FIG. 1 , a USB host  110  and a USB peripheral device  130  may establish a wired USB connection using a USB on-the-go (OTG) cable  120 . 
         [0070]    The USB OTG cable  120  includes five pins, e.g., a ground (GND) pin, an identifier (ID) pin, a D+ pin, a D− pin, and a Vcc pin. Here, a role of a USB device is determined according to whether the ID pin is connected to the GND pin or floated. That is, the USB may be a USB host or a USB peripheral device according to whether the ID pin of the USB device is connected to the GND pin or floated. 
         [0071]    An example of a USB communication applicable to embodiments of the present disclosure has been described with reference to  FIG. 1 , and an example of a process of determining a role of a USB communication applicable to embodiments of the present disclosure will be described with reference to  FIG. 2 . 
         [0072]      FIG. 2  illustrates an example of a process of determining a role of a USB communication applicable to embodiments of the present disclosure. 
         [0073]    Referring to  FIG. 2 , if an ID pin is connected to a GND pin, that is, if the ID pin is grounded, a role of a USB device is a host. If the ID pin is floated, the role of the USB device is a peripheral device. 
         [0074]    Referring to an example of a USB communication as shown in  FIG. 1 , a USB device  110  connected to a grounded ID pin of a cable  120  is a host, and a USB device  130  connected to a floated ID pin is a peripheral. Hereinafter, it will be noted that the term peripheral device will be exchangeable with the term device. 
         [0075]    Hereinafter, embodiments of the present disclosure will be described using a USB communication, however, embodiments of the present disclosure may be easily applied to a communication system in which a high-speed wireless communication of Gbps or more at a short range distance which is within centimeters. Further, embodiments of the present disclosure may be applied to all devices and communications for substituting a wired connection which exists already with a wireless connection without considering a distance and a data rate. For example, embodiments of the present disclosure may be applied for a 60 GHz short range wireless communication technology. 
         [0076]    An example of a process of determining a role of a USB communication applicable to embodiments of the present disclosure has been described with reference to  FIG. 2 , and an example of a usage scenario of a USB device applicable to embodiments of the present disclosure will be described with reference to  FIG. 3 . 
         [0077]      FIG. 3  illustrates an example of a usage scenario of a USB device applicable to embodiments of the present disclosure. 
         [0078]    Referring to  FIG. 3 , an electronic device  310  may establish a wireless USB connection  315  with another electronic device  320 . For example, the electronic device  310  may be at least one of a mobile device such as a tablet computer and a smart phone, an STA, a UE, a wearable device, and an IoT device. 
         [0079]    For example, the electronic device  320  may be a wireless docking pad providing a charging circuit for the electronic device  310 , and relays a connection between the electronic device  310  and a peripheral device  330 . For this, a wireless docking pad  320  may be connected to the peripheral device  330  through a wired cable  325  such as a high-definition multimedia interface (HDMI) or a digital video/visual interactive (DVI) or a wireless communication. 
         [0080]    In an example in  FIG. 3 , the wireless docking pad  320  transmits video data provided by the electronic device  310  through a wireless USB connection  315  to a display device as the peripheral device  330  through an HDMI cable  325  thereby the video data is displayed. 
         [0081]    In a usage scenario of a USB device for video streaming in  FIG. 3 , the electronic device  310  operates as a host transmitting image date, and the wireless docking pad  320  operates as a peripheral operating under a control of the host. 
         [0082]    An example of a usage scenario of a USB device applicable to embodiments of the present disclosure has been described with reference to  FIG. 3 , and another example of a usage scenario of a USB device applicable to embodiments of the present disclosure will be described with reference to  FIG. 4 . 
         [0083]      FIG. 4  illustrates another example of a usage scenario of a USB device applicable to embodiments of the present disclosure. 
         [0084]    Referring to  FIG. 4 , an electronic device  410  may establish a wireless USB connection  415  with a wireless docking pad  420 . For example, the electronic device  410  may be at least one of a tablet computer, a smart phone or a wearable device, and an IoT device. The wireless docking pad  420  relays a connection between the electronic device  410  and a computer  430 . 
         [0085]    In a usage scenario of a USB device in  FIG. 4 , the electronic device  410  operates as an external hard disk (HD) for data backup of the computer  430 . For this, the wireless docking pad  420  may be connected to the computer  430  through a wired cable  425 , e.g., a USB 3.0 or a wireless communication. 
         [0086]    In an example in  FIG. 4 , the computer  430  transmits backup data through the wired cable  425 , and the wireless docking pad  420  stores the backup data at the electronic device  410  through a wireless USB connection  415 . 
         [0087]    Alternatively, the wireless docking pad  420  reads data stored at the electronic device  410  through the wireless USB connection  415 , and the computer  430  receives backup data through the wired cable  425 . 
         [0088]    In a usage scenario of a USB for data backup in  FIG. 4 , the wireless docking pad  420  operates as a host of the wireless USB connection  415 , and the electronic device  410  operates as a peripheral device. 
         [0089]    Another example of a usage scenario of a USB device applicable to embodiments of the present disclosure has been described with reference to  FIG. 4 , and still another example of a usage scenario of a USB device applicable to embodiments of the present disclosure will be described with reference to  FIG. 5 . 
         [0090]      FIG. 5  illustrates still another example of a usage scenario of a USB device applicable to embodiments of the present disclosure. 
         [0091]    Referring to  FIG. 5 , the first electronic device  510  may establish a wireless USB connection  530  with the second electronic device  520  through a touch or short range access. That is, each electronic device, i.e., each of the first electronic device  510  and the second electronic device  520  may recognize approach of another device, automatically establish a wireless USB connection, and use a device to device (D2D) service. For example, the electronic devices  510  and  520  may be at least one of a tablet computer, a smart phone or a wearable device, and an IoT device. 
         [0092]    A usage scenario of a USB device in  FIG. 5  supports a D2D service between the electronic devices  510  and  520 , and each of the electronic devices  510  and  520  may perform a host role or a peripheral device role. 
         [0093]    Still another example of a usage scenario of a USB device applicable to embodiments of the present disclosure has been described with reference to  FIG. 5 , and an example of a scenario of supporting a USB connection using a wireless-gigabit (WiGig) technology applicable to embodiments of the present disclosure will be described with reference to  FIGS. 6A and 6B . 
         [0094]    An example of a WiGig serial extension (WSE) service set (WSS) applicable to embodiments of the present disclosure will be described with reference to  FIG. 6A . 
         [0095]      FIG. 6A  illustrates an example of a WSS applicable to embodiments of the present disclosure. 
         [0096]    Referring to  FIG. 6A , a WSS includes a WSE host  610  communicating with a WSE device  615  through a WiGig wireless link interface. The WSE host  610  is connected to a plurality of WSE devices, and may control the plurality of WSE devices. The WSE device  615  may include USB ports, and each USB port may be extended into a plurality of ports through an access to a USB device or a USB hub. The WSE device  615  operates as a USB device D 1 . A WSE docking device  620  wirelessly connected to the WSE host  610  operates as a USB 3.0 hub, and provides USB ports for a connection with a USB device D 2   625  and a USB device D 3   630 . 
         [0097]    An example of a WSS applicable to embodiments of the present disclosure has been described with reference to  FIG. 6A , and an example of an equivalent USB topology for a WSS applicable to embodiments of the present disclosure will be described with reference to  FIG. 6B . 
         [0098]      FIG. 6B  illustrates an example of an equivalent USB topology for a WSS applicable to embodiments of the present disclosure. 
         [0099]    Referring to  FIG. 6B , a WSE host  610  configures a tier  1   640  of a USB topology, and includes a host function and a root hub. The root hub provides a plurality of USB ports which may be connected to USB devices  615  and  620 . 
         [0100]    The USB devices  615  and  620  configure a tier  2   645 . A WSE docking device  620  as a USB device within the tier  2   645  provides a USB  2 . 0  hub port H 1  and a super speed hub port H 2 . 
         [0101]    USB devices D 2  and D 3   625  and  630  within a tier  3   650  may be connected to hub ports H 1  and H 2  of the WSE docking device  620 . 
         [0102]    An example of an equivalent USB topology for a WSS applicable to embodiments of the present disclosure has been described with reference to  FIG. 6B , and a connection diagram according to a usage scenario in  FIGS. 6A and 6B  will be described with reference to  FIG. 7 . 
         [0103]      FIG. 7  illustrates a connection diagram according to a usage scenario in  FIGS. 6A and 6B . 
         [0104]    Referring to  FIG. 7 , a host  710  is a WSE host  610  as shown in  FIGS. 6A and 6B , and may be, for example, a personal computer. A hub  715  is a WSE docking device  620  as shown in  FIGS. 6A and 6B , and connects the host  710  with devices  725  and  730 . For example, a device  720  with a direct wireless connection may be a display. 
         [0105]    For example, the devices  725  and  730  which may be connected to the host  710  through the hub  715  may be input/output devices such as a mouse or a printer. 
         [0106]    In a WSE standard supporting a USB connection using a WiGig wireless technology which uses a 60 GHz band as shown in  FIGS. 7, and 6A and 6B , a USB role of each USB device is determined when a USB wireless connection is established. 
         [0107]    In a USB or a wireless communication scheme in which a role of a device is determined like the USB, there may be a need for a technology for changing roles of devices while a wireless connection is operated. 
         [0108]    In embodiment of the present disclosure to be described, an electronic device communicates information for determining a role of the electronic device in a process of establishing a wireless connection upon detecting a situation in which a wireless communication may be connected in a communication system to automatically determine the role of the electronic device and enable to connect a service while establishing the wireless connection. 
         [0109]    An example of a topology of a wireless connection dynamically configurable in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 8 . 
         [0110]      FIG. 8  illustrates an example of a topology of a wireless connection dynamically configurable in a communication system according to an embodiment of the present disclosure. 
         [0111]    Referring to  FIG. 8 , a host  810  may be, for example, a mobile device such as a smart phone, and a device  820  establishing a direct wireless connection with the host  810  may be, for example, a display. 
         [0112]    For example, each of devices  825 , 830 , and  835  which may be connected to the host  815  through a hub  815  may be a mouse, a printer, a PC, and/or the like. 
         [0113]    For example, the hub  815  may be a wireless docking pad  815  which may establish a wireless connection such as a USB with a smart phone as the host  810 . The hub  815  establishes a wireless connection with the host  810 , and may perform a host role or a peripheral device role for the wireless connection. 
         [0114]    Similarly, the host  810  may perform a peripheral device role or a host role for the wireless connection unlike the hub  815 . A role of the host  810  and the hub  815  as devices which join a wireless connection may be automatically determined when the wireless connection is established or may be changed while the wireless connection is maintained. For example, the device  810  may operate as a peripheral device, not a host while a device  835  connected to the hub  815  operates as the host. 
         [0115]    An example of a topology of a wireless connection dynamically configurable in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 8 , and an example of a scenario using a wireless connection in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 9 . 
         [0116]      FIG. 9  illustrates an example of a scenario using a wireless connection in a communication system according to an embodiment of the present disclosure. 
         [0117]    Referring to  FIG. 9 , an electronic device  910  may establish a wireless connection  915  with a wireless docking pad  920 . For example, the wireless connection  915  may be a wireless USB connection. For example, the electronic device  910  may be at least one of a tablet computer, a smart phone or a wearable device, and an IoT device. 
         [0118]    The wireless docking pad  920  provides a charging circuit for the electronic device  910 , and/or relays a connection between the electronic device  910  and a peripheral device  930  or a connection between the electronic device  910  and a computer  940 . For this, wireless docking pad  920  may be connected to the peripheral device  930  such as a wired cable  925 , e.g., an HDMI, and/or may be connected to the computer  940  through a wired cable  935  such as USB 3.0. 
         [0119]    In an example of  FIG. 9 , the wireless docking pad  920  may transmit video data provided by the electronic device  910  through the wireless connection  915  to the display  930  through the HDMI cable  925 . In this case, the electronic device  910  operates as a host, and the wireless docking pad  920  operates as a peripheral device. 
         [0120]    The wireless docking pad  920  stores backup data transferred from the computer  940  through the USB cable  935  at the electronic device  910  through the wireless connection  915 . In this case, the wireless docking pad  920  operates as a host, and the electronic device  910  operates as a peripheral device. 
         [0121]    An example of a scenario using a wireless connection in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 9 , and an example of a configuration of a wireless docking pad supporting a multi-wireless connection in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 10 . 
         [0122]      FIG. 10  illustrates an example of a configuration of a wireless docking pad supporting a multi-wireless connection in a communication system according to an embodiment of the present disclosure. 
         [0123]    Referring to  FIG. 10 , the first electronic device  1010  may establish a wireless connection  1015  with the second electronic device  1020 . For example, the wireless connection  1015  may be a wireless USB connection. 
         [0124]    For example, the first electronic device  1010  may be at least one of a tablet computer, a smart phone, a wearable device, and an IoT device. 
         [0125]    The second electronic device  1020  may be, for example, a wireless docking pad or a peripheral device. The second electronic device  1020  may include a hard disk  1022  which operates as a host, and/or an internal display  1025  which operates as a peripheral device for the wireless connection  1015  with the first electronic device  1010 . 
         [0126]    Meanwhile, if a USB connection of an electronic device  920  which may support a connection with various devices as described in  FIG. 9  or an electronic device  1020  with an internal display  1025  and a hard disc  1022  is wirelessly established, each of the electronic devices  920  and  930  may automatically determine a role suitable for each service scenario. 
         [0127]    For determining and/or changing a role of a wireless connection, an electronic device may manage at least one of the following state information: 
         [0128]    Connection port and device state for a wireless USB communication; 
         [0129]    State of a service providable through a wireless USB communication; or 
         [0130]    Service context information. 
         [0131]    The service context information may be, for example, information related to a used application, information indicating whether a video is played, and/or the like. 
         [0132]    The state information is exchanged between electronic devices in a process in which the electronic devices are connected. 
         [0133]    An example of a configuration of a wireless docking pad supporting a multi-wireless connection in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 10 , and an example of a procedure of establishing a wireless connection including exchange of state information in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 11 . 
         [0134]      FIG. 11  illustrates an example of a procedure of establishing a wireless connection including exchange of state information in a communication system according to an embodiment of the present disclosure. 
         [0135]    Referring to  FIG. 11 , it will be noted that an example of a procedure of establishing a wireless connection including exchange of state information is a procedure in which a wireless USB connection is established and data is exchanged between an STA# 1   1130  and an STA# 2   1135 . In various embodiments of the present disclosure, it will be noted that the term STA will be interchangeable with the mobile station (MS), terminal, and/or the like. 
         [0136]    In  FIG. 11 , the STA# 1   1130  wakes up from an idle state  1105  by a predetermined period, e.g., a period T and during a predetermined time interval, e.g., a time interval T_awake to monitor whether there is a received signal. If there is no received signal during the time interval T_awake, the STA# 1   1130  maintains the idle state until start of the next period T. 
         [0137]    The STA# 2   1135  performs a signal monitoring operation at an idle state  1140  by a predetermined period, e.g., a period T and a predetermined time interval, e.g., a time interval T_awake. 
         [0138]    In a case that there is a need for establishing a wireless connection such as a case traffic data to be transmitted in the STA# 1   1130  occurs, a case that there is traffic data to be transmitted in the STA# 1   1130 , or a case that there is data which the STA# 1   1130  intends to receive, the STA# 1   1130  transitions into a discovery state  1110  and transmits a reference signal, e.g., a beacon signal by a preset time interval, e.g., a time interval T_bcn_int and during a time duration, e.g. a time duration T_bcn_dur. If a response signal for the beacon signal is not received even though the beacon signal has been transmitted predetermined times, the beacon signal may be transmitted with power which is increased compared to the previous transmission power. 
         [0139]    For example, the STA # 2   1135  may detect at least one of beacon signals from the STA # 1   1130  through a short range approach to the STA # 1   1130 . The STA # 2   1135  powers on a communication interface for a short range communication, transitions into a discovery state  1145 , and transmits a beacon notification signal on the discovery state  1145 . 
         [0140]    The STA # 1   1130  powers on a communication interface for a short range communication at operation  1165  and transmits a confirmation signal to the STA # 2   1135 . 
         [0141]    The STA # 2  transmits, to the STA # 1   1130 , a state information message necessary for determining a role of a wireless connection before transitioning into a wake-up state  1150  at operation  1170 . 
         [0142]    The STA # 1   1130  transmits a state information message of the STA # 1   1130  to the STA # 2   1135  before transitioning into a wake-up state  1115  at operation  1170 . In  FIG. 11 , the transmission of the state information message from the STA # 2   1135  is performed before the transmission of the state information message from the STA # 1   1130  is performed. However, the transmission of the state information message from the STA # 1   1130  may be performed before the transmission of the state information message from the STA # 2   1135  is performed, or the transmission of the state information message from the STA # 1   1130  and the transmission of the state information message from the STA # 2   1135  may be performed at the same time. 
         [0143]    The STA # 2   1135  transmits a request message for authentication during a wake-up state  1150  and the STA # 1   1130  transmits a response message to the request message for the authentication during a wake-up state  1115 . 
         [0144]    The STA # 2   1135  transmits a request message for association of a wireless connection, and the STA # 1   1130  transmits a response message to the request message for the association of the wireless connection thereby completing establishment of the wireless connection. 
         [0145]    The STA # 1   1130  transmits data on a data transfer state  1120  to the STA # 2   1135  which is on a data transfer state  1155 , and receives an acknowledgement (ACK) message to the data from the STA # 2   1135 . Upon completing data transmission or detecting that the STA # 2   1135  becomes out of a communication range for a short range communication, the STA # 1   1130  releases a wireless access, powers off a communication interface for the short range communication, and transitions into an idle state  1125 . 
         [0146]    If there is no data transmission from the STA # 1   1130 , the STA # 2   1135  releases a wireless access and transitions into an idle state  1160 . 
         [0147]    An example of a procedure of establishing a wireless connection including exchange of state information in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 11 , and an example of a state information message transmitted by an STA in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 12 . 
         [0148]      FIG. 12  illustrates an example of a state information message transmitted by an STA in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure. 
         [0149]    Referring to  FIG. 12 , a state information message includes an element ID field  1205  indicating an element ID for identifying a device transmitting the state information message, a length field  1210  indicating information for a length of the state information message, and at least one field  1215 ,  1220 ,  1225 ,  1230 ,  1235 , and  1240  indicating state information to be used for determining a role of a wireless connection. 
         [0150]    The state information may be at least one of a video on field  1215  indicating that video data is played, a resolution information field  1220  indicating resolution information for the video data, an email on field  1225  indicating transmission of email data, a mail server address field  1230  indicating a mail server address related to the email data, a data update on field  1235  indicating that backup data is transmitted, and an account information field  1240  indicating account information related to the backup data. 
         [0151]    An example of a state information message transmitted by an STA in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 12 , and another example of a state information message transmitted by an STA or a wireless docking pad in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 13 . 
         [0152]      FIG. 13  illustrates another example of a state information message transmitted by an STA or a wireless docking pad in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure. 
         [0153]    Referring to  FIG. 13 , a state information message includes an element ID field  1305  indicating an element ID for identifying a device transmitting the state information message, a length field  1310  indicating information on a length of the state information message, a connection state field  1315  indicating a connection state related to a wireless connection, No. of connections field  1320  indicating the number of connections which may be maintained through a wireless connection, and a connection information field  1325  indicating connection information for each connection. 
         [0154]    For example, each connection information field  1325  may include a field informing that an image device in which video data transmission is possible has been connected to a port, e.g., an HDMI or a DVI, and/or a field informing that a computer in which a data connection is possible has been connected to a port, e.g., a USB or an Ethernet. 
         [0155]    In various embodiments of the present disclosure, an electronic device may determine a role of the electronic device using a service currently used and state information for the electronic device, or transmit the state information to an opponent electronic device. For example, upon establishing a wireless connection with an opponent electronic device while playing video, an electronic device implemented as a smart phone transmits, to the opponent electronic device, a video on field as state information of the electronic device. 
         [0156]    The opponent electronic device may automatically recognize intention of a wireless connection as video streaming and determine a role of the opponent electronic device. In this case, the electronic device determines a role of the electronic device as a host role, and the opponent electronic device determines a role of the opponent electronic device as a peripheral device role. 
         [0157]    For another example, in a case that it is determined that there is a need for data backup if a new picture or video file is stored at a storage of an electronic device implemented as a smart phone, or the number or capacity of pictures or video files reaches a preset threshold value, the electronic device includes a data update on field into state information to transmit the state information to an opponent electronic device upon establishing a wireless connection. 
         [0158]    The electronic device and the opponent electronic device automatically determine a role for the wireless connection using the state information. In this case, based on the state information, the electronic device determines a role of the electronic device as a peripheral device role and the opponent electronic device performs a host role. 
         [0159]    For still another example, an electronic device may transmit or request state information to an opponent electronic device instead of determining a role of the electronic device, and receive, from the opponent electronic device, information on a determined role as a response to the transmission or request of the state information to identify and determine the role of the electronic device. For convenience, information on a role will be referred to as role information. For example, only an electronic device which operates as a host may transmit role information. For another example, at least one of two electronic devices which set a wireless connection may transmit role information. 
         [0160]    In a scenario in  FIG. 9 , all of a display apparatus  930  and a computer  940  which operates as an external hard disk are connected to a wireless docking pad  920 , so the wireless docking pad  920  may perform all of a host role and a peripheral device role for connections. For example, the wireless docking pad  920  may perform a peripheral device role for the first connection of a video streaming related to the display apparatus  930  and perform a host role for the second role of data backup related to the computer  940 . 
         [0161]    The wireless docking pad  920  includes role information indicating a role of the wireless docking pad  920  or a role of an opponent electronic device for each role into state information to transmit the state information to an electronic device  910 , and the electronic device  910  may determine a role of the electronic device  910  for each connection based on the role information. 
         [0162]    Alternatively, if the electronic device  910  directly determines the role of the electronic device  910 , there is no need for the transmission of the role information, so the electronic device  910  directly determines the role of the electronic device  910  using state information. 
         [0163]    Another example of a state information message transmitted by an STA or a wireless docking pad in a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 13 , and an example of a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 14 . 
         [0164]      FIG. 14  illustrates an example of a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure. 
         [0165]    Referring to  FIG. 14 , it will be noted that a procedure of establishing a wireless connection in  FIG. 14  is an example of a procedure of establishing a wireless connection between a mobile device such as a smart phone and a smart pad such as a wireless docking pad. Here, a smart pad may operate a hub providing a connection for an external device such as a computer. 
         [0166]    In  FIG. 14 , a mobile device is mounted on a smart pad at operation  1405  and a wireless connection for a short range communication is started at operation  1410 . Here, a wireless connection may be initiated by one of a charging coil, an out of band ( 00 B) signal, an embedded sensor, and an in band signal. A mobile device and a smart pad power on a communication interface for a short range communication at operation  1415 , and the smart pad starts transmitting a beacon signal for setting a link at operation  1420 . 
         [0167]    The mobile device and the smart pad acquire state information such as device information and service information of an opponent device in a procedure of establishing a wireless connection for a short range communication at operation  1425 . For example, the state information may be configured as described in  FIG. 12  or  FIG. 13 . The smart pad selects at least one appropriate device among devices connected to the smart pad, and determines a role for the wireless connection using state information of the smart pad and/or state information of the opponent device at operation  1430 . 
         [0168]    The smart pad adaptively completes setup of the wireless connection by considering the selected device, the determined role, and a service state, e.g., a video on field, an email on field, and/or the like of the mobile device at operation  1435 . After the setup of the wireless connection has been completed, each of the mobile device and the smart pad performs an operation of exchanging at least one of video data, backup data, and application data according to the determined role of each of the mobile device and the smart pad at operation  1440 . 
         [0169]    If necessary, the smart pad sets up a connection with the device selected at operation  1430 , e.g., a display apparatus or a computer at operation  1445 , and transmits at least one of the video data, the backup data, and the application data to the device at operation  1450 . 
         [0170]    While the wireless connection between the mobile device and the smart pad is maintained, a service state of the mobile device may be changed at operation  1455  or a connection state of the smart pad may be changed at operation  1460 . For example, video play may be stopped in the mobile device, or a connection with the display apparatus may be released in the smart pad. 
         [0171]    Upon detecting that the service state or the connection state is changed, a corresponding device may perform a role changing operation and a new connection setup operation through connection negotiation at operation  1465 . 
         [0172]    For example, if a service state of the mobile device is changed, the mobile device transmits state information on the changed service state to the smart device while performing a new connection setup operation. Then, each of the mobile device and the smart pad may determine a role for a new connection of each of the mobile device and the smart pad based on the state information. 
         [0173]    For example, if the smart pad detects that a connection state is changed, the smart pad transmits state information on the changed connection state to the mobile device while performing a new connection setup operation. Similarly, each of the mobile device and the smart pad may determine a role for a new connection of each of the mobile device and the smart pad based on the state information. 
         [0174]    A mobile device, a smart, and a computer may dynamically configure a topology of a wireless connection as described in  FIG. 8  based on a procedure as described in  FIG. 14 . 
         [0175]    Although  FIG. 14  illustrates an example of a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure, various changes could be made to  FIG. 14 . For example, although shown as a series of operations, various operations in  FIG. 14  could overlap, occur in parallel, occur in a different order, or occur multiple times. 
         [0176]    An example of a procedure of establishing a wireless connection in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 14 , and an example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 15 . 
         [0177]      FIG. 15  illustrates an example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure. 
         [0178]    Referring to  FIG. 15 , an electronic device may be, for example, a mobile device, and an opponent electronic device may be, for example, a wireless docking pad. For example, an operation of an electronic device as described in  FIG. 15  may be initiated by detecting start of wireless connection setup with the opponent electronic device in the electronic device. For example, an electronic device may start an operation in  FIG. 15  by detecting a beacon signal transmitted from an opponent electronic device or receiving a confirmation signal in response to a beacon signal transmitted from the electronic device. 
         [0179]    In  FIG. 15 , an electronic device request state information on a device state of an opponent electronic device or a service state of a service providable in the opponent electronic device for starting a connection with the opponent electronic device at operation  1505 . Here, state information may include information necessary for determining a role of an electronic device. For example, state information on a device state may include at least one of information on other electronic devices connected to an opponent electronic device, i.e., the number of connections, a type of a connection, e.g., data backup, video streaming, and/or the like, and a role of the opponent electronic device for a corresponding role. 
         [0180]    Further, state information on a service state may include at least one of types of services providable by an opponent electronic device, e.g., data backup, video streaming, and/or the like, an application which is using or may be used, and/or information on whether a video is played. In another embodiment of the present disclosure, operation  1505  may be omitted, and an electronic device may proceed to operation  1510  without request. 
         [0181]    The electronic device receives state information from the opponent electronic device at operation  1510 . The electronic device determines whether the state information includes role information indicating a role of the opponent electronic device at operation  1515 . If the state information includes the role information, the electronic device determines a role of the electronic device for the wireless connection with the opponent electronic device based on the role information, and tries to establish a wireless connection with the opponent electronic device based on the determined role at operation  1520 . For example, the wireless connection may be a wireless USB connection. 
         [0182]    If the state information does not include the role information, the electronic device analyzes the state information, and detects a service context of the electronic device at operation  1525 . The electronic device determines whether the electronic device is playing a video based on the service context at operation  1530 . 
         [0183]    If the electronic device is playing the video, the electronic device determines to perform a host role, and tries to establish a wireless connection with the opponent electronic device according to the determined role at operation  1535 . The electronic device determines whether there is update data to be stored at the electronic device based on the state information at operation  1540 . If there is the update data, the electronic device determines to perform a peripheral device role, and tries to establish a wireless connection with the opponent electronic device according to the determined role at operation  1545 . 
         [0184]    For another example, the electronic device recognizes that there are plurality of connections with the opponent electronic device based on the state information, and may determine a role of the electronic device for a wireless connection by performing operations  1530 ,  1535 ,  1540 , and  1545  for each connection independently and separately. 
         [0185]    Meanwhile, if a service sate or a device state necessary for determining a role such as video play or update data is not identified, the electronic device tries to establish a wireless connection with the opponent electronic device with default setting at operation  1550 . The default setting may be determined as a host role or a peripheral device role according to a type of the electronic device and the opponent electronic device. 
         [0186]    Although  FIG. 15  illustrates an example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure, various changes could be made to  FIG. 15 . For example, although shown as a series of operations, various operations in  FIG. 15  could overlap, occur in parallel, occur in a different order, or occur multiple times. 
         [0187]    An example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 15 , and another example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 16 . 
         [0188]      FIG. 16  illustrates another example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure. 
         [0189]    Referring to  FIG. 16 , an electronic device may be, for example, a wireless docking pad, and an opponent electronic device may be, for example, a mobile device. For example, an electronic device may start an operation in  FIG. 16  by detecting a beacon signal transmitted from an opponent electronic device or receiving a confirmation signal in response to a beacon signal transmitted from the electronic device. 
         [0190]    In  FIG. 16 , an electronic device receives a request for state information related to a device state of an opponent electronic device or a service state of a service providable in the opponent electronic device for starting a connection with the opponent electronic device at operation  1605 . Here, state information may mean information necessary for determining a role of an electronic device. For example, state information on a device state may include at least one of information on other electronic devices connected to an opponent electronic device, i.e., the number of connections, a type of a connection, e.g., data backup, video streaming, and/or the like, and a role of the opponent electronic device for a corresponding role. Further, state information on a service state may include at least one of types of services providable by an opponent electronic device, e.g., data backup, video streaming, and/or the like, an application which is using or may be used, and/or information on whether a video is played. In another embodiment of the present disclosure, operation  1605  may be omitted, and an electronic device may proceed to operation  1610  without request. 
         [0191]    The electronic device determines whether there is other electronic device connected to the electronic device, and identifies services providable to the opponent electronic device based on the connected electronic devices at operation  1610 . If there is no electronic device connected to the electronic device, the electronic device determines that there is no need for a wireless connection, so the electronic device deactivate a communication interface of the electronic device or enters a low-power mode for operating on an idle state at operation  1615 . The electronic device transmits, to the opponent electronic device, a signal indicating that there is no electronic device connected to the electronic device thereby the opponent electronic device stops setting up a wireless connection for a short range communication. 
         [0192]    If there are the other electronic devices connected to the electronic device, the electronic device determines whether the number of the other electronic device is greater than or equal to 2 at operation  1620 . If the number of the other electronic device is greater than or equal to 2, the electronic device determines that it is impossible to determine role information at operation  1625 . 
         [0193]    The electronic device includes information on electronic devices connectable to the opponent electronic device and information indicating that the electronic device may perform a host role and a peripheral role into state information to transmit the state information to the opponent electronic device, and tries to establish a wireless connection with the opponent electronic device at operation  1645 . In this case, the electronic device receives state information indicating a role determined by the opponent electronic device to establish the wireless connection based on the state information. 
         [0194]    If the number of the other electronic device is 1, the electronic device determines a role for a wireless connection according to a type of the other electronic device at operation  1630 . For example, a display apparatus is connected to the electronic device through an image output port such as an HDMI, the electronic device may determine to perform a peripheral device role. 
         [0195]    For another example, if an external hard disk is connected to the electronic device, the electronic device may determine to perform a host role. If the electronic device determines to perform a peripheral device role, the electronic device includes role information indicating the peripheral device role into state information to transmit the state information to the opponent electronic device, and tries to establish a wireless connection with the opponent electronic device based on the state information at operation  1635 . 
         [0196]    If the electronic device determines to perform a host role, the electronic device includes role information indicating the host role into state information to transmit the state information to the opponent electronic device, and tries to establish a wireless connection with the opponent electronic device based on the state information at operation  1640 . 
         [0197]    Although  FIG. 16  illustrates another example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure, various changes could be made to  FIG. 16 . For example, although shown as a series of operations, various operations in  FIG. 16  could overlap, occur in parallel, occur in a different order, or occur multiple times. 
         [0198]    Another example of an operating process of an electronic device in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 16 , and an example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 17 . 
         [0199]      FIG. 17  illustrates a timing diagram of an example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure. 
         [0200]    Referring to  FIG. 17 , it will be noted that a procedure of operating a wireless connection between electronic devices in  FIG. 17  is a procedure of establishing a wireless USB connection and exchanging data between an STA A  1725  and an STA B  1720 . In an example as shown in  FIG. 17 , the STA A  1725  operates as a peripheral device and the STA B  1720  operates as a host. 
         [0201]    In  FIG. 17 , the STA B  1720  operates as an advertiser  1710  on a discovery state  1700 , and operates as a host on a data transfer state  1705 . 
         [0202]    The STA A  1725  operates as a scanner  1740  on a discovery state  1730 , and operates as a peripheral device on a data transfer state  1735 . The discovery states  1700  and  1730  of the STAs B and A  1720  and  1725  are synchronized each other. Similarly, the data transfer states  1705  and  1735  are synchronized each other. 
         [0203]    When the STA B  1720  starts operating as an advertiser  1710 , the STA B  1720  performs an advertising function  1750 . The advertising function  1750  includes repetitive transmission of a beacon signal for waking up an opponent electronic device. 
         [0204]    When the STA A  1725  starts operating as a scanner  1740 , the STA A  1725  performs a scanning function  1760  for detecting a beacon signal transmitted from an opponent electronic device. Upon detecting the beacon signal while performing the scanning function  1760 , the STA A  1725  transmits a notification signal to the STA B  1720  according to a detection function  1765 . The STA B  1720  transmits a confirmation signal as a response signal to the notification signal. 
         [0205]    According to exchange of the notification signal and the confirmation signal, the STA A  1725  and the STA B  1720  perform association functions  1755  and  1770 . The STA B  1720  transmits a device information request (Dev.Req) message to the STA A  1725  according to the association function  1755 . At this time, the Dev.Req message may include state information. The state information is required for determining a role of a wireless connection between the STA A  1725  and the STA B  1720 , and may include, for example, information necessary for determining a role of the STA A  1725  in the STA A  1725  or role information indicating a role which the STA B  1720  instructs the STA A  1725  to perform. For example, the role information may instruct the STA A  1725  to perform a peripheral device role or indicate that the STA B  1720  determined to perform a host role. For example, the state information may indicate a device state and/or a service state of the STA B  1720 . 
         [0206]    The STA A  1725  transmits, to the STA B  1720 , a device information response (DEV.Resp) message in response to the Dev.Req message according to the association function  1770 . The DEV.Resp message may include state information. The state information is required for determining a role of a wireless connection between the STA A  1725  and the STA B  1720 , and may include, for example, information necessary for determining a role of the STA B  1720  in the STA B  1720  or role information indicating a role which the STA A  1725  instructs the STA B  1720  to perform. For example, the role information may instruct the STA B  1720  to perform a host role or indicate that the STA A  1725  performs a peripheral device role. For example, the state information may indicate a device state and/or a service state of the STA B  1720 . 
         [0207]    The STA B  1720  operates as a host station (Host-STA)  1715  on a data transfer state  1705 . That is, the STA B  1720  transmits a USB device handle request (USBDevHandleReq) message for setting up a wireless connection, e.g., a WSE connection at operation  1775 . The STA A  1725  operates as a device station (Device-STA)  1745  on a data transfer state  1735 . The STA A  1725  receives, from the STA B  1720 , a USBDevHandleReq message for setting up a wireless connection, e.g., a WSE connection at operation  1785 , and transmits, to the STA B  1720 , a USB device handle response (USBDevHandleResp) message. 
         [0208]    The STA B  1720  operating as the Host-STA  1715  during the data transfer state  1705  includes data into a transfer request (TransferReq) message to transmit the TransferReq message at operation  1780 . The STA A  1725  receives the data and responds with a transfer Ack (TransferAck) message at operation  1790 . 
         [0209]    An example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 17 , and another example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 18 . 
         [0210]      FIG. 18  illustrates a timing diagram of another example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure. 
         [0211]    Referring to  FIG. 18 , a procedure of operating a wireless connection between electronic devices is a procedure of establishing a wireless USB connection and exchanging data between an STA A  1825  and an STA B  1820 . In an example as shown in  FIG. 18 , the STA A  1825  operates as a host and the STA B  1820  operates as a peripheral device. 
         [0212]    In  FIG. 18 , the STA B  1820  operates as an advertiser  1810  on a discovery state  1800 , and operates as a peripheral device on a data transfer state  1805 . The STA A  1825  operates as a scanner  1840  on a discovery state  1830 , and operates as a host on a data transfer state  1835 . The discovery states  1800  and  1830  of the STAs B and A  1820  and  1825  are synchronized each other. Similarly, the data transfer states  1805  and  1835  are synchronized each other. 
         [0213]    When the STA B  1820  starts operating as an advertiser  1810 , the STA B  1820  performs an advertising function  1850 . The advertising function  1850  includes repetitive transmission of a beacon signal for waking up an opponent electronic device. When the STA A  1825  starts operating as a scanner  1840 , the STA A  1825  performs a scanning function  1860  for detecting a beacon signal transmitted from an opponent electronic device. Upon detecting a beacon signal while performing the scanning function  1860 , the STA A  1825  transmits a notification signal to the STA B  1820  according to a detecting function  1865 . The STA B  1820  transmits a confirmation signal as a response signal to the notification signal. 
         [0214]    According to exchange of the notification signal and the confirmation signal, the STA A  1825  and the STA B  1820  perform combination functions  1855  and  1870 . The STA B  1820  transmits a device information request (Dev.Req) message to the STA A  1825  according to the combination function  1855 . The Dev.Req message may include state information. The state information is required for determining a role of a wireless connection between the STA A  1825  and the STA B  1820 . For example, the state information may include information required for determining a role of the STA A  1825  in the STA A  1825 , or role information for a role instructed by the STA B  1820  to the STA A  1825 . For example, the state information may indicate that the STA A  1825  needs to perform a host role, or may indicate that the STA B  1820  is determined to perform a peripheral device role. For example, the state information may indicate a device state and/or a service state of the STA B  1820 . 
         [0215]    The STA A  1825  transmits a device information response (DEV.Resp) message as a response message the Dev.Req message to the STA B  1820  according to the combination function  1870 . The DEV.Resp message may include state information. The state information is required for determining a role of a wireless connection between the STA A  1825  and the STA B  1820 . For example, the state information may include information required for determining a role of the STA B  1820  in the STA B  1820 , or role information for a role instructed by the STA A  1825  to the STA B  1820 . For example, the state information may indicate that the STA B  1820  needs to perform a peripheral device role, or may indicate that the STA A  1825  is determined to perform a host role. For example, the state information may indicate a device state and/or a service state of the STA B  1820 . 
         [0216]    The STA A  1825  operates as a host STA  1845  on a data transfer state  1805 . The STA A  1825  transmits a USB device handling request (USBDevHandleReq) message for setting up a wireless connection, e.g., a WSE connection at operation  1845 . The STA B  1820  operates as a device STA  1815  on a data transfer state  1805 . The STA B  1820  receives a USBDevHandleReq message for setting up a wireless connection, i.e., a WSE connection from the STA A  1825  at operation  1875 , and transmits a USB device handling response (USBDevHandleResp) message to the STA A  1825 . 
         [0217]    The STA A  1725  operating as a host STA  1745  during the data transfer state  1835  transmits a transfer request (TransferReq) message including data at operation  1890 . The STA B  1720  receives the data and responds with a transfer acknowledgement (TransferAck) message at operation  1880 . 
         [0218]    Another example of a procedure of operating a wireless connection between electronic devices in a communication system according to an embodiment of the present disclosure has been described with reference to  FIG. 18 , and an inner structure of devices of establishing a wireless connection in a communication system according to an embodiment of the present disclosure will be described with reference to  FIG. 19 . 
         [0219]      FIG. 19  illustrates an inner structure of devices of establishing a wireless connection in a communication system according to an embodiment of the present disclosure. 
         [0220]    Referring to  FIG. 19 , devices  1910  and  1920  may be, for example, a mobile device and a wireless docking pad. 
         [0221]    In  FIG. 19 , the device  1910  at least includes a processor  1912  and a short range communication interface  1914 . 
         [0222]    The short range communication interface  1914  transmits and receives signals and messages for establishing a wireless connection for a short range communication, and the processor  1912  determines a role for a wireless connection of the short range communication interface  1914 , or transmits state information necessary for determining the role to an opponent device  1920  through the short range communication interface  1914 , or receives the state information necessary for determining the role from the opponent device  1920  through the short range communication interface  1914 . 
         [0223]    The wireless docking pad  1920  at least includes a processor  1922  and a short range communication interface  1924 . 
         [0224]    The short range communication interface  1924  transmits and receives signals and messages for establishing a wireless connection for a short range communication, and the processor  1922  determines a role for a wireless connection of the short range communication interface  1924 , or transmits state information necessary for determining the role to an opponent device  1910  through the short range communication interface  1924 , or receives the state information necessary for determining the role from the opponent device  1910  through the short range communication interface  1924 . 
         [0225]    While the processor  1912  and the short range communication interface  1914  are described in the mobile device  1910  as separate units, it is to be understood that this is merely for convenience of description. In other words, the processor  1912  and the short range communication interface  1914  may be incorporated into a single unit. 
         [0226]    The mobile device  1910  may be implemented with at least one processor. 
         [0227]    While the processor  1922  and the short range communication interface  1924  are described in the wireless docking pad  1920  as separate units, it is to be understood that this is merely for convenience of description. In other words, the processor  1922  and the short range communication interface  1924  may be incorporated into a single unit. 
         [0228]    The wireless docking pad  1920  may be implemented with at least one processor. 
         [0229]    Various embodiments of the present disclosure may exchange information for an automatic connection by selectively determining a role of an electronic device while connecting a wireless communication, and support a role changing function according to a service of each connection device. 
         [0230]    Further, a user&#39; device may be automatically connected to an external hard disk to back up data in a case that data, e.g., a picture, a video, and/or the like is updated at the user&#39;s mobile device, or may be automatically connected to a display device to play a video to the display device in a case that a wireless connection is set up while the video is played, so the user&#39;s convenience becomes increased. 
         [0231]    As is apparent from the foregoing description, an embodiment of the present disclosure enables to perform a short range wireless communication in a communication system. 
         [0232]    An embodiment of the present disclosure enables to substitute a wired USB connection with a wireless connection using a wireless communication technology in a communication system. 
         [0233]    An embodiment of the present disclosure enables to communicate information for determining a role of a USB in a procedure of establishing a wireless connection in a communication system. 
         [0234]    An embodiment of the present disclosure enables to automatically determine a role of an electronic device upon establishing a wireless connection for a short range communication and to establish a service connection in a communication system. 
         [0235]    Certain aspects of the present disclosure may also be embodied as computer readable code on a non-transitory computer readable recording medium. A non-transitory computer readable recording medium is any data storage device that can store data, which can be thereafter read by a computer system. Examples of the non-transitory computer readable recording medium include read only memory (ROM), random access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and carrier waves (such as data transmission through the Internet).The non-transitory computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, code, and code segments for accomplishing the present disclosure can be easily construed by programmers skilled in the art to which the present disclosure pertains. 
         [0236]    It can be appreciated that a method and apparatus according to an embodiment of the present disclosure may be implemented by hardware, software and/or a combination thereof. The software may be stored in a non-volatile storage, for example, an erasable or re-writable ROM, a memory, for example, a RAM, a memory chip, a memory device, or a memory integrated circuit (IC), or an optically or magnetically recordable non-transitory machine-readable (e.g., computer-readable), storage medium (e.g., a compact disk (CD), a digital video disc (DVD), a magnetic disk, a magnetic tape, and/or the like).A method and apparatus according to an embodiment of the present disclosure may be implemented by a computer or a mobile terminal that includes a controller and a memory, and the memory may be an example of a non-transitory machine-readable (e.g., computer-readable), storage medium suitable to store a program or programs including instructions for implementing various embodiments of the present disclosure. 
         [0237]    The present disclosure may include a program including code for implementing the apparatus and method as defined by the appended claims, and a non-transitory machine-readable (e.g., computer-readable), storage medium storing the program. The program may be electronically transferred via any media, such as communication signals, which are transmitted through wired and/or wireless connections, and the present disclosure may include their equivalents. 
         [0238]    An apparatus according to an embodiment of the present disclosure may receive the program from a program providing device which is connected to the apparatus via a wire or a wireless and store the program. The program providing device may include a memory for storing instructions which instruct to perform a content protect method which has been already installed, information necessary for the content protect method, and the like, a communication unit for performing a wired or a wireless communication with a graphic processing device, and a controller for transmitting a related program to a transmitting/receiving device based on a request of the graphic processing device or automatically transmitting the related program to the transmitting/receiving device. 
         [0239]    While the present disclosure has been shown and described with reference to various embodiments thereof, 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 present disclosure as defined by the appended claims and their equivalents. 
         [0240]    Although the present disclosure has been described with an exemplary embodiment, various changes and modifications may be suggested to one skilled in the art. It is intended that the present disclosure encompass such changes and modifications as fall within the scope of the appended claims.