Abstract: A method of allocating channel resources in a wireless network is disclosed. The method of allocating instant channel resources in a wireless network includes receiving channel resource scheduling information of a specific superframe from a coordinator of the wireless network, requesting the coordinator to allocate instant channel resources for an unreserved duration of the specific superframe, and receiving an announcement message from the coordinator, the announcement message announcing allocation of the instant channel resources within the unreserved duration of the specific superframe.

Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes a first receiving unit, a second receiving unit, a known sequence detector, a equalizer, and a display unit. The first receiving unit receives a first broadcast signal including first mobile broadcast service data and first main broadcast service data. The second receiving unit receives a second broadcast signal including second mobile broadcast service data and second main broadcast service data. The known sequence detector detects at least one of known data included in the received first broadcast signal and known data included in the received second broadcast signal. The channel equalizer uses the detected known data, thereby channel-equalizing the received first and second mobile broadcast service data corresponding to the detected known data.

Abstract: A method of channel assessment and channel searching in a wireless network is disclosed. The wireless network separately performs a channel assessment procedure and a channel searching procedure for channel change or another object. The channel assessment procedure is to measure a status or quality of a channel which is currently used in the wireless network. A coordinator of the wireless network designates a time interval for the channel assessment to notify other device of it. The channel assessment procedure may be performed periodically, and is preferably scheduled to allow other devices not to use the channel for the time interval which at least one device performs channel assessment.

Abstract: The present invention related to a method in which a transmitting device transmits a packet in a wireless network, wherein said method comprises: a step of receiving, from an upper layer, video data divided into a plurality of slices and compressed into one or more types of layers; a step of constructing a MAC packet such that information on the types of said one or more layers of the video data is included in a MAC header of the MAC packet; and a step of delivering the MAC packet to a lower layer to transmit the MAC packet to a receiving device.

Abstract: An apparatus and method for processing digital broadcast signal are provided. The method for processing a broadcast signal includes forming a data group having mobile broadcast service data, where forming the data group includes mapping the mobile broadcast service data into corresponding locations of the data group, adding known data sequences and signaling data into the data group, inserting place holder bytes for MPEG header and non-systematic Reed-Solomon (RS) parity, and de-interleaving data of the data group having the mobile broadcast service data, known data sequences, signaling data and place holder bytes, and formatting mobile broadcast service data packets including the de-interleaved data of the data group, where formatting the mobile broadcast service data packets includes removing place holder bytes for the non-systematic RS parity, and replacing place holder bytes for the MPEG header with the MPEG header.

Abstract: A wireless network system includes a platform device transmitting a first message including display capability information to at least one device and at least one device transmitting a second message to the platform device in response to the first message. The display capability information includes information on a display space and a display format supportable by the platform device. The second message includes display output information of the at least one device. The display output information includes: information on a display space, a display format, and display contents selected by the at least one device based upon the display capability information; and field type information that indicates characteristics of a field in which the display contents are displayed.

Abstract: A method of channel assessment and channel searching in a wireless network is disclosed. The wireless network separately performs a channel assessment procedure and a channel searching procedure for channel change or another object. The channel assessment procedure is to measure a status or quality of a channel which is currently used in the wireless network. A coordinator of the wireless network designates a time interval for the channel assessment to notify other device of it. The channel assessment procedure may be performed periodically, and is preferably scheduled to allow other devices not to use the channel for the time interval which at least one device performs channel assessment.

Abstract: A method of channel assessment and channel searching in a wireless network is disclosed. The wireless network separately performs a channel assessment procedure and a channel searching procedure for channel change or another object. The channel assessment procedure is to measure a status or quality of a channel which is currently used in the wireless network. A coordinator of the wireless network designates a time interval for the channel assessment to notify other device of it. The channel assessment procedure may be performed periodically, and is preferably scheduled to allow other devices not to use the channel for the time interval which at least one device performs channel assessment.

Abstract: A wireless network system includes a coordinator, a first device, and a second device. The coordinator transmits a first response to the first device to approve a first request message received from the first device; broadcast a first beacon, indicating that the first device is in a power saving mode, after transmitting the first response; transmit a second response to the second device to approve a second request message received from the second device; broadcast a second beacon, indicating that the first device needs to change a power management mode from the power saving mode to a normal mode, after transmitting the second response; transmit a third response to the first device to approve a third request message received from the first device; and broadcast a third beacon, indicating that the first device is in the normal mode, after transmitting the third response.

Abstract: A method of controlling connection establishment to transmit or receive audio/video (A/V) data in a wireless network is provided. The method of controlling connection establishment to transmit or receive A/V data in a first device of a wireless network that includes a coordinator and at least one device includes transmitting connection request information required to request connection establishment with a second device and a connection request message which includes capability information of the first device to the second device and receiving a connection response message from the second device in response to the connection request message.

Abstract: A method of controlling connection establishment to transmit or receive audio/video (A/V) data in a wireless network is provided. The method of controlling connection establishment to transmit or receive A/V data in a first device of a wireless network that includes a coordinator and at least one device includes transmitting connection request information required to request connection establishment with a second device and a connection request message which includes capability information of the first device to the second device and receiving a connection response message from the second device in response to the connection request message.

Abstract: A method of controlling connection establishment to transmit or receive A/V data in a wireless network is provided. The method of controlling connection establishment to transmit or receive A/V data in a first device of a wireless network that includes a coordinator and at least one device comprises transmitting connection request information required to request connection establishment with a second device and a connection request message which includes capability information of the first device to the second device and receiving a connection response message from the second device in response to the connection request message.

Abstract: A method of changing channels of a first device in a wireless network, which includes a first coordinator and at least one device, comprises searching whether another channel other than a first channel which is currently used in the wireless network is available, changing the first channel to a second channel among at least one or more available channels as a result of the searching step, and transmitting data to a second device or receiving data from the second device through the second channel.

Abstract: Methods for allocating predetermined output display spaces to devices and allowing the devices to freely display desired information in the respective allocated spaces so as to easily control the devices is disclosed. That is, one of the methods for outputting information collected through a report request (S41, S42) on a display of a platform device in order to request basic device capability information of devices and allowing a user to directly control a selected device through a key passing-through method is disclosed.

Abstract: A method of controlling connection establishment to transmit or receive A/V data in a wireless network is provided. The method of controlling connection establishment to transmit or receive A/V data in a first device of a wireless network that includes a coordinator and at least one device comprises transmitting connection request information required to request connection establishment with a second device and a connection request message which includes capability information of the first device to the second device and receiving a connection response message from the second device in response to the connection request message.

Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes N number of antenna elements, a demodulator, a transmission parameter detector, and a block decoder. The N number of antenna elements receives each of the broadcast signals. The demodulator demodulates the broadcast signal having greater signal strength among each of the received broadcast signals. The transmission parameter detector detects the transmission parameter. The block decoder symbol-decodes the mobile broadcast service data included in the received broadcast signal in block units, based upon the detected transmission parameter.

Abstract: A wireless network system includes a coordinator, a first device, and a second device. The coordinator transmits a first response to the first device to approve a first request message received from the first device; broadcast a first beacon, indicating that the first device is in a power saving mode, after transmitting the first response; transmit a second response to the second device to approve a second request message received from the second device; broadcast a second beacon, indicating that the first device needs to change a power management mode from the power saving mode to a normal mode, after transmitting the second response; transmit a third response to the first device to approve a third request message received from the first device; and broadcast a third beacon, indicating that the first device is in the normal mode, after transmitting the third response.

Abstract: Methods of controlling connection establishment to transmit or receive AA/data in a wireless network are disclosed. A method of controlling connection establishment to transmit or receive AA/data in a first device of a wireless network, which includes a coordinator and at least one device, comprises transmitting connection request information required to request connection establishment with a second device and a connection request message which includes capability information of the first device to the second device, and receiving a connection response message from the second device in response to the connection request message. As well as message formats to said methods are disclosed.

Abstract: A broadcast receiver and a method of processing data are disclosed. The broadcast receiver includes a signal receiving unit, a position information module, and a navigation unit. The signal receiving unit receives broadcast signal multiplexed mobile broadcast service data including traffic information and main broadcast service data. The position information module searches and generates a current position information of the broadcast receiver. The navigation unit assigns a weight to each link of a route to a destination based on the current position information received and the traffic information included in the mobile broadcast service data and searches for a bypass route based on the weighted link, and then performs route guidance using at least one of current route and the bypass route.

Abstract: In wireless network communication, the present invention provides a method of checking whether information on a request for a mode change is received for a prescribed channel time in a manner that a device configuring a network enters a power save mode in the course of not performing data transmission/reception and that a modem enters an awake state from a sleep state for the prescribed channel time. And, the prescribed channel time is determined to correspond to a time for transmitting a beacon. According to one preferred embodiment of the present invention, a modem of a device in a power save mode enters an awake state for a channel time period for broadcasting a beacon and then checks whether information on a power management mode change is received. If the information does not exist, a sleep state is reentered. If the power management mode change information is received, a power is managed by performing data transmission/reception in a manner of switching to a normal mode.