摘要:
A method and system for transmitting/receiving data in a communication system are provided, in which upon generation of IM service data to be transmitted to a second MS, a first MS requests paging to a second MS to an IM server, the IM server transmits a paging message to the second MS in response to the paging request, and the second MS receives the IM service data from the first MS, after receiving the paging message.
摘要:
A fuel tank valve structure controlling emission gas in a hybrid vehicle may include a housing having one side connected with a fuel tank and the other side connected to a canister, a check valve mounted to the housing and opening or closing a first fluid passage connected between the canister and the fuel tank, a solenoid valve apparatus selectively connected with the check valve to open or close the first fluid passage to adjust an internal pressure of the fuel tank, a fuel limit vent valve apparatus mounted to the housing and selectively fluid-connecting to a space formed between the check valve and the fuel limit vent valve apparatus in the housing, and a relief valve mounted to the housing and selectively fluid-connecting the fuel tank with the canister through a second fluid passage.
摘要:
A signaling method and apparatus for channel switching in a WLAN are provided. In the signaling method and apparatus, a data transmission channel is allocated to a receiver and a transmitter. A channel index is set to indicate the allocated channel in a duration field. A current channel is switched to the data transmission channel indicated by the channel index.
摘要:
A scheduling apparatus for a base transceiver system (BTS), determines a point of data transmission to mobile stations (MSs). The BTS includes buffers for storing data to be transmitted to the MSs. A scheduler determines a priority of each of the MSs taking into account a data rate determined depending on a channel condition between the BTS and the MSs, a required amount of transmission data, and an amount of data to be transmitted to the MSs, and determines an MS having the highest priority among the MSs, as a destination MS to which data is to be transmitted by the BTS. The scheduler increases the required amount of transmission data upon receipt of a retransmitted data packet, and decreases the required amount of transmission data after transmitting data to the MSs.
摘要:
A method and system for transmitting and receiving a signal between first and second mobile nodes is provided. The method and system offers improvements to the throughput of an overall wireless local area network. When the first mobile node receives a data frame from the second mobile node, third mobile nodes can also transmit and receive the data frame. The first mobile node sends an acknowledgement (ACK) frame for notifying that the data frame has been completely received to the second mobile node through a common channel.
摘要:
An apparatus and method for multicast transmission of packet data in a mobile communication system. To multicast packet data to a group of MSs, a BS divides a plurality of MSs within its cell area into a plurality of multicast groups. Here, the MSs of each multicast group are to receive the same data. The BS assigns a MMAC index to each multicast group. Upon receipt of a multicast traffic channel request message from an MS, the BS transmits to the MS a traffic channel assignment message with the MMAC index of a multicast group to which the MS belongs and transmits forward packet data to the MS on a traffic channel corresponding to the MMAC index.
摘要:
Provided is an apparatus and method for providing a cell-based advertisement broadcast service in a broadband wireless communication system. In an advertisement broadcast service of a service interface server in the broadband wireless communication system, an advertisement content transmission request message containing at least one of information about advertisement broadcast content, information about an advertisement broadcast zone, and information about an advertisement broadcast channel is received from a service provider. The received advertisement content transmission request message is transmitted to an MCBCS controller.
摘要:
Disclosed is a method for interfacing in a communication system. The method includes receiving an event, which should be processed using information managed by a second system providing a second service, from a first system providing a first service; and performing an interface so that the second system performs an operation corresponding to the event by using the information.
摘要:
A control method in a communication system. In the control method, a Base Station (BS) detects a service type of data to be transmitted to a Mobile Station (MS), and broadcasts to the MS a message including service information corresponding to the detected service type. The MS recognizes a service type of data to be transmitted to the MS itself depending on the service information included in the message, previously activates an application program provided for processing the transmission data according to the recognized service type, and receives the data through use of the application program.
摘要:
A system and method are provided for performing a clear channel assessment (CCA) function in a wireless mesh network. In doing so, a method is provided for performing a CCA function to detect a hidden node in a wireless mesh network and includes varying a predetermined default threshold value according to at least one parameter, and determining a variable threshold value to perform the CCA function resulting from the varying of the predetermined default threshold value. The CCA function can then be performed based on the determined variable threshold value.