摘要:
A system and method that improve service and device discovery in a UPnP-based wireless communication network and avoids unnecessary broadcast messages on a MAC sublayer of a DLC layer caused by UPnP multicast messages on an IP layer by intercepting UPnP multicast messages in a network protocol stack below the IP layer. A module intercepts multicast UDP packets destined to a UPnP IP multicast address and port, the multicast UDP packets containing UPnP packets as payload. The module executes DLC/MAC-based service discovery functions to perform wireless network-specific device discovery and to find UPnP-enabled devices in the wireless communication network. Once a wireless network device discovery has returned nodes that fulfill criteria given in the search, the module uses unicast DLC/MAC messages to send UPnP packets to only those nodes that are UPnP-enabled and whose device type matches the respective UPnP device type sought.
摘要:
A system and method that improve service and device discovery in a UPnP-based wireless communication network and avoids unnecessary broadcast messages on a MAC sublayer of a DLC layer caused by UPnP multicast messages on an IP layer by intercepting UPnP multicast messages in a network protocol stack below the IP layer. A module intercepts multicast UDP packets destined to a UPnP IP multicast address and port, the multicast UDP packets containing UPnP packets as payload. The module executes DLC/MAC-based service discovery functions to perform wireless network-specific device discovery and to find UPnP-enabled devices in the wireless communication network. Once a wireless network device discovery has returned nodes that fulfill criteria given in the search, the module uses unicast DLC/MAC messages to send UPnP packets to only those nodes that are UPnP-enabled and whose device type matches the respective UPnP device type sought.
摘要:
The present invention relates to the field of multi-path wireless communication. The present invention provides a system for assisting in providing a wireless communication link between a first communication device and a second communication device based on a plurality of communication paths comprising a history manager for providing, based on a recorded history of communication path states, a proposal for one or more communication paths based on which the communication link can be provided. The present invention further provides a corresponding method and a communication system and a communication device comprising the system of the present invention. Based on the proposal provided by the present invention, path switching can be performed more effectively, less and shorter interruptions of the communication link can be obtained and an enhanced transmission quality can be provided for multi-path wireless communication systems.
摘要:
The present invention relates to a transmitting device (1) for transmitting signals in a wireless communication system, wherein said signals are transmitted in consecutive frames (23a, 23b, 23c), each frame comprising a beacon (BSF) and data frames (DF), said transmitting device (1) comprising a first set of narrow beam antennas (2a, 2b, 2c), each narrow beam antenna (2a, 2b, 2c) having a different beaming direction corresponding to one of a number of different transmission paths (P0, P1, P2) from said transmitting device (1) to a receiving device, and a first control means (5) adapted to control the transmission of said frames (23a, 23b, 23c), whereby the data frames (DF) of respectively two consecutive frames (23a, 23b, 23c) are transmitted via different narrow beam antennas (2a, 2b, 2c).The present invention further relates to a receiving device (10) for receiving signals in a wireless communications system as well as to a method for transmitting signals in a wireless communications system and to a method for receiving signals in a wireless communication system.
摘要:
The present invention encompasses compounds of general formula (1) wherein R1 to R3 are defined as in claim 1, which are suitable for the treatment of diseases characterised by excessive or abnormal cell proliferation, and the use thereof for preparing a pharmaceutical composition having the above-mentioned properties.
摘要:
An operating device for a household appliance includes an electronic display panel, and an operating element that is displaceable relative to the display panel to set operating conditions of the household appliance. The operating element has a region which is disposed within an area of the display panel.
摘要:
A filter unit for an extractor hood includes at least one filter element, and at least one protection plate which is arranged in a flow direction upstream of the filter element. The protection plate is made of at least two layers and can have a thickness in a range of 0.5 mm to 10 mm.
摘要:
The present invention encompasses compounds of general Formula (1) wherein R1 to R4 are defined as in claim 1, which are suitable for the treatment of diseases characterized by excessive or abnormal cell proliferation, and the use thereof for preparing a medicament having the above-mentioned properties.
摘要:
The present invention encompasses compounds of general formula (1) wherein R1 to R3 are defined as in claim 1, which are suitable for the treatment of diseases characterized by excessive or abnormal cell proliferation, and the use thereof for preparing a medicament having the above-mentioned properties.
摘要:
The present invention encompasses compounds of general Formula (1) wherein R2, R3, Q, W, X, Y and Z are defined as in claim 1, which are suitable for the treatment of diseases characterised by excessive or abnormal cell proliferation, and the use thereof for preparing a medicament having the above-mentioned properties.