Title:
無線ネットワークにおけるリアルタイムデータの保護
Document Type and Number:
Japanese Patent JP2006511140
Kind Code:
A
Abstract:
The invention provides a traffic shaper module allocates more bandwidth to real-time data in wireless TCP/IP networks where accessible bandwidth is limited. This is particular relevant for IEEE 802.11b networks. For downstream data, the traffic shaper module can be set to control the transmission to all clients and thereby give priority to the port carrying real-time data. For the upstream case, data transmission from all kinds of standard devices is to be reduced or delayed. Hence, the data transmissions from other clients have to be controlled remotely from the access point. By delaying or discarding packets, such as TCP acknowledgements, to other clients, the traffic shaper module artificially increases their Round Trip Time (RTT). The protocol at these clients responds to the increased RTT by transmitting data at a lower rate, thereby leaving more bandwidth for the real-time data port.
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Inventors:
Melpignano, Diego
Cior Paes, David
Cior Paes, David
Application Number:
JP2004561745A
Publication Date:
March 30, 2006
Filing Date:
November 20, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H04L12/28; H04L12/64; H04L47/22; H04L47/2416; H04L47/32; H04W28/14
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Watanabe Naomitsu
Shinsuke Onuki
Tadashige Ito
Watanabe Naomitsu